[Title 46 CFR ]
[Code of Federal Regulations (annual edition) - October 1, 2014 Edition]
[From the U.S. Government Publishing Office]



[[Page i]]



          Title 46

Shipping


________________________

Parts 140 to 155

                         Revised as of October 1, 2014

          Containing a codification of documents of general
          applicability and future effect

          As of October 1, 2014
                    Published by the Office of the Federal Register
                    National Archives and Records Administration as a
                    Special Edition of the Federal Register

[[Page ii]]

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[[Page iii]]




                            Table of Contents



                                                                    Page
  Explanation.................................................       v

  Title 46:
          Chapter I--Coast Guard, Department of Homeland
          Security (Continued)                                       3
  Finding Aids:
      Table of CFR Titles and Chapters........................     333
      Alphabetical List of Agencies Appearing in the CFR......     353
      List of CFR Sections Affected...........................     363

[[Page iv]]





                     ----------------------------

                     Cite this Code: CFR
                     To cite the regulations in
                       this volume use title,
                       part and section number.
                       Thus, 46 CFR 147.1 refers
                       to title 46, part 147,
                       section 1.

                     ----------------------------

[[Page v]]



                               EXPLANATION

    The Code of Federal Regulations is a codification of the general and
permanent rules published in the Federal Register by the Executive
departments and agencies of the Federal Government. The Code is divided
into 50 titles which represent broad areas subject to Federal
regulation. Each title is divided into chapters which usually bear the
name of the issuing agency. Each chapter is further subdivided into
parts covering specific regulatory areas.
    Each volume of the Code is revised at least once each calendar year
and issued on a quarterly basis approximately as follows:

Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
Title 28 through Title 41...................................as of July 1
Title 42 through Title 50................................as of October 1

    The appropriate revision date is printed on the cover of each
volume.

LEGAL STATUS

    The contents of the Federal Register are required to be judicially
noticed (44 U.S.C. 1507). The Code of Federal Regulations is prima facie
evidence of the text of the original documents (44 U.S.C. 1510).

HOW TO USE THE CODE OF FEDERAL REGULATIONS

    The Code of Federal Regulations is kept up to date by the individual
issues of the Federal Register. These two publications must be used
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    To determine whether a Code volume has been amended since its
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Register page number of the latest amendment of any given rule.

EFFECTIVE AND EXPIRATION DATES

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OMB CONTROL NUMBERS

    The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires
Federal agencies to display an OMB control number with their information
collection request.

[[Page vi]]

Many agencies have begun publishing numerous OMB control numbers as
amendments to existing regulations in the CFR. These OMB numbers are
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PAST PROVISIONS OF THE CODE

    Provisions of the Code that are no longer in force and effect as of
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This material, like any other properly issued regulation, has the force
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Federal Register will approve an incorporation by reference only when
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    (a) The incorporation will substantially reduce the volume of
material published in the Federal Register.
    (b) The matter incorporated is in fact available to the extent
necessary to afford fairness and uniformity in the administrative
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    (c) The incorporating document is drafted and submitted for
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this volume.

[[Page vii]]

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    Charles A. Barth,
    Director,
    Office of the Federal Register.
    October 1, 2014.







[[Page ix]]



                               THIS TITLE

    Title 46--Shipping is composed of nine volumes. The parts in these
volumes are arranged in the following order: Parts 1-40, 41-69, 70-89,
90-139, 140-155, 156-165, 166-199, 200-499, and 500 to end. The first
seven volumes containing parts 1-199 comprise chapter I--Coast Guard,
DHS. The eighth volume, containing parts 200--499, includes chapter II--
Maritime Administration, DOT and chapter III--Coast Guard (Great Lakes
Pilotage), DHS. The ninth volume, containing part 500 to end, includes
chapter IV--Federal Maritime Commission. The contents of these volumes
represent all current regulations codified under this title of the CFR
as of October 1, 2014.

    For this volume, Bonnie Fritts was Chief Editor. The Code of Federal
Regulations publication program is under the direction of John Hyrum
Martinez, assisted by Jim Hemphill.

[[Page 1]]



                           TITLE 46--SHIPPING




                  (This book contains parts 140 to 155)

  --------------------------------------------------------------------
                                                                    Part

chapter i--Coast Guard, Department of Homeland Security
  (Continued)...............................................         147

[[Page 3]]



   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)




  --------------------------------------------------------------------

                     SUBCHAPTER N--DANGEROUS CARGOES
Part                                                                Page
140-146

[Reserved]

147             Hazardous ships' stores.....................           5
147A            Interim regulations for shipboard fumigation          11
148             Carriage of bulk solid materials that
                    require special handling................          15
149

[Reserved]

              SUBCHAPTER O--CERTAIN BULK DANGEROUS CARGOES
150             Compatibility of cargoes....................          45
151             Barges carrying bulk liquid hazardous
                    material cargoes........................         125
152

[Reserved]

153             Ships carrying bulk liquid, liquefied gas,
                    or compressed gas hazardous materials...         192
154             Safety standards for self-propelled vessels
                    carrying bulk liquefied gases...........         268
155

[Reserved]

               SUBCHAPTER P--MANNING OF VESSELS [RESERVED]

[[Page 5]]



                     SUBCHAPTER N_DANGEROUS CARGOES



                        PARTS 140	146 [RESERVED]



PART 147_HAZARDOUS SHIPS' STORES--Table of Contents



                      Subpart A_General Provisions

Sec.
147.1 Purpose; applicability; preemptive effect.
147.3 Definitions.
147.5 Commandant (CG-OES); address.
147.7 Incorporation by reference.
147.8 OMB control numbers assigned pursuant to the Paperwork Reduction
          Act.
147.9 Waivers.
147.15 Hazardous ships' stores permitted on board vessels.
147.30 Labeling.
147.33 Right of appeal.

    Subpart B_Stowage and Other Special Requirements for Particular
                                Materials

147.35 Purpose of subpart.
147.40 Materials requiring Commandant (CG-OES) approval.
147.45 Flammable and combustible liquids.
147.50 Fuel for cooking, heating, and lighting.
147.60 Compressed gases.
147.65 Carbon dioxide and halon fire extinguishing systems.
147.66 Inert gas fire extinguishing systems.
147.67 Halocarbon fire extinguishing systems.
147.70 Acetylene.
147.85 Oxygen.
147.90 Refrigerants.
147.95 Explosives.
147.100 Radioactive materials.
147.105 Anesthetics, drugs, and medicines.

    Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980
Comp., p. 277; Department of Homeland Security Delegation No. 0170.1.

    Source: CGD 84-044, 53 FR 7749, Mar. 10, 1988, unless otherwise
noted.

    Editorial Note: Nomenclature changes to part 147 appear by USCG-
2009-0702, 74 FR 49235, Sept. 25, 2009, and USCG-2012-0832, 77 FR 59782,
Oct. 1, 2012.



                      Subpart A_General Provisions



Sec. 147.1  Purpose; applicability; preemptive effect.

    (a) This part prescribes regulations designating what hazardous
materials may be on board vessels as ships' stores and prescribes
requirements for the labeling, stowage, and use of those materials.
    (b) This part applies to all vessels listed in 46 U.S.C. 3301 as
subject to inspection under part B of 46 U.S.C. Subtitle II. On foreign
vessels in the navigable waters of the United States, the Captain of the
Port or District Commander may prohibit the unsafe use or stowage of
hazardous ships' stores under 33 CFR 160.109.
    (c) All certifications previously issued by the Coast Guard under
this part permitting the use of particular materials or products as
ships' stores are null and void.
    (d) The regulations in this part have preemptive effect over State
or local regulations in the same field.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by USCG-2006-24797,
77 FR 33885, June 7, 2012]



Sec. 147.3  Definitions.

    As used in this part:
    Accommodation, control, or service spaces means living quarters,
including walkways, dining rooms, galleys, pantries, lounges,
lavatories, cabins, staterooms, offices, hospitals, cinemas, and game
and hobby rooms; areas containing controls for equipment and navigation;
workshops, other than those forming part of machinery spaces; and store
rooms adjacent to these spaces.
    Combustible liquid means combustible liquid as the term is defined
in 49 CFR 173.120(b).
    Compressed gas means compressed gas as the term is defined in 49 CFR
173.115.
    Consumer commodity means a commodity, such as a polish, insecticide,
cleaning compound, or distillate, that is packaged and distributed in a
form and quantity intended for sale through retail sales establishments.
    Flammable liquid means flammable liquid as the term is defined in 49
CFR 173.120(a).
    Hazardous material means hazardous material as the term is defined
in 49 CFR 171.8.
    Hazardous ships' stores means ships' stores that are hazardous
materials.

[[Page 6]]

    Proper shipping name means the name of the hazardous ships' stores
shown in Roman print (not in italics) in 49 CFR 172.101.
    Ships' stores means materials which are on board a vessel for the
upkeep, maintenance, safety, operation, or navigation of the vessel
(except for fumigants under part 147A of this chapter, for fuel and
compressed air used for the vessel's primary propulsion machinery, or
for fixed auxiliary equipment) or for the safety or comfort of the
vessel's passengers or crew.
    Technical name means the recognized chemical name used in scientific
or technical publications.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 97-057, 62 FR
51048, Sept. 30, 1997]



Sec. 147.5  Commandant (CG-OES); address.

    Commandant (CG-ENG) is the Office of Design and Engineering
Standards. The mailing address is Commandant (CG-ENG), Attn: Office of
Design and Engineering Systems, U.S. Coast Guard Stop 7509, 2703 Martin
Luther King Jr. Avenue SE., Washington, DC 20593-7509; telephone 202-
372-1372.

[USCG-2013-0671, 78 FR 60154, Sept. 30, 2013]



Sec. 147.7  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part
with the approval of the Director of the Federal Register under 5 U.S.C.
552(a) and 1 CFR part 51. To enforce any edition other than that
specified in this section, the Coast Guard must publish notice of change
in the Federal Register and the material must be available to the
public. All approved material is available for inspection at Coast Guard
Headquarters. Contact Commandant (CG-ENG), Attn: Office of Design and
Engineering Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King
Jr. Avenue SE., Washington, DC 20593-7509. The material is also
available from the sources listed below. It is also available for
inspection at the National Archives and Records Administration (NARA).
For information on the availability of this material at NARA, call 202-
741-6030 or go to http://www.archives.gov/federal--register/code--of--
federal--regulations/ibr--locations.html.
    (b) American Boat and Yacht Council, Inc. (ABYC), 613 Third Street,
Suite 10, Annapolis, MD 21403, telephone 410-990-4460, www.abyinc.org.
    (1) ABYC H-25-81, Portable Fuel Systems and Portable Containers for
Flammable Liquids, (May 12, 1981), (``ABYC H-25-81''), IBR approved for
Sec. 147.45.
    (2) [Reserved]
    (c) American Society of Heating, Refrigerating, and Air-Conditioning
Engineers, Inc. (ASHRAE), Publication Sales Department, 1791 Tullie
Circle NE., Atlanta, GA 30329, telephone 404-636-8400, www.ashrae.org.
    (1) ANSI/ASHRAE 34-78, Number Designation of Refrigerants (approved
1978), (``ANSI/ASHRAE 34-78''), IBR approved for Sec. 147.90.
    (2) [Reserved]
    (d) National Fire Protection Association (NFPA), 1 Batterymarch
Park, Quincy, MA, 02169-7471, telephone 617-770-3000, www.nfpa.org.
    (1) NFPA 2001, Standard on Clean Agent Fire Extinguishing Systems,
2008 Edition, (``NFPA 2001''), IBR approved for Sec. Sec. 147.66 and
147.67.
    (2) [Reserved]
    (e) Public Health Service, Department of Health and Human Services
(DHHS), Superintendent of Documents, U.S. Government Printing Office,
Washington, DC 20402.
    (1) DHHS Publication No. (PHS) 84-2024, The Ship's Medicine Chest
and Medical Aid at Sea (revised 1984), (``DHHS Publication No. (PHS) 84-
2024''), IBR approved for Sec. 147.105.
    (2) [Reserved]
    (f) Underwriters Laboratories, Inc. (UL), 333 Pfingsten Road,
Northbrook, IL 60062, telephone 847-272-8800, www.ul.com.
    (1) UL 30, Standard for Metal Safety Cans, 7th Ed. (revised March 3,
1987), (``UL 30''), IBR approved for Sec. 147.45.
    (2) UL 1185, Standard for Portable Marine Fuel Tanks, Second
Edition, revised July 6, 1984, (``UL 1185''), IBR approved for Sec.
147.45.
    (3) UL 1313, Standard for Nonmetallic Safety Cans for Petroleum
Products, 1st Ed. (revised March 22, 1985), (``UL 1313''), IBR approved
for Sec. 147.45.

[[Page 7]]

    (4) UL 1314, Standard for Special-Propose Containers, 1st Ed.
(revised February 7, 1984), (``UL 1314''), IBR approved for Sec.
147.45.

[USCG-2006-24797, 77 FR 33885, June 7, 2012, as amended by USCG-2013-
0671, 78 FR 60154, Sept. 30, 2013]



Sec. 147.8  OMB control numbers assigned pursuant to the Paperwork
Reduction Act.

    (a) Purpose. This section collects and displays the control numbers
assigned to information collection and recordkeeping requirements in
this subchapter by the Office of Management and Budget (OMB) pursuant to
the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast
Guard intends that this section comply with the requirements of 44
U.S.C. 3507(f), which requires that agencies display a current control
number assigned by the Director of the OMB for each approved agency
information collection requirement.
    (b) Display.

------------------------------------------------------------------------
                                                             Current OMB
    46 CFR part or section where identified or described     control no.
------------------------------------------------------------------------
Sec. 147.9...............................................    1625-0034
Sec. 147.30..............................................    1625-0034
Sec. 147.40..............................................    1625-0034
Sec. 147.60(c)(2)........................................    1625-0034
------------------------------------------------------------------------


[CGD 88-072, 53 FR 34298, Sept. 6, 1988; 88-072, 53 FR 37570, Sept. 27,
1988, as amended by USCG-2004-18884, 69 FR 58349, Sept. 30, 2004]



Sec. 147.9  Waivers.

    (a) Any requirement in this part may be waived on a case by case
basis if it is determined by Commandant (CG-ENG) that the requirement is
impracticable under the circumstances and that an acceptable level of
safety can be maintained.
    (b) Requests for issuance of a waiver must be in writing and contain
a detailed explanation of--
    (1) Why the requirement is impracticable; and
    (2) What measures will be taken to maintain an acceptable or
equivalent level of safety.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 95-072, 60 FR
50465, Sept. 29, 1995; CGD 96-041, 61 FR 50731, Sept. 27, 1996; USCG-
2013-0671, 78 FR 60154, Sept. 30, 2013]



Sec. 147.15  Hazardous ships' stores permitted on board vessels.

    Unless prohibited under subpart B of this part, any hazardous
material may be on board a vessel as ships' stores if the material--
    (a) Is labeled according to Sec. 147.30; and
    (b) Meets the requirements, if any, in subpart B of this part
applicable to the material.



Sec. 147.30  Labeling.

    (a) Except as provided in paragraph (b) of this section, all
immediate receptacles, containers, or packages containing hazardous
ships' stores must be labeled in English with the following information
concerning the contents:
    (1) Technical name or proper shipping name.
    (2) For hazardous ships' stores other than liquid fuels,
manufacturer's or supplier's name and address.
    (3) Hazard classification under 49 CFR 172.101, 173.2, and 173.2(a).
    (4) For hazardous ships' stores other than liquid fuels, step by
step procedures for proper use.
    (5) First aid instructions in the event of personnel contact,
including antidotes in the event of ingestion.
    (6) Stowage and segregation requirements.
    (b) Hazardous ships' stores that are consumer commodities labeled in
accordance with the Federal Hazardous Substances Act Regulations in 16
CFR part 1500 need not be labeled as specified in paragraph (a) of this
section.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 97-057, 62 FR
51048, Sept. 30, 1997; USCG-2005-22329, 70 FR 57183, Sept. 30, 2005]



Sec. 147.33  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989; 55 FR 21386, May 24, 1990]

[[Page 8]]



    Subpart B_Stowage and Other Special Requirements for Particular
                                Materials



Sec. 147.35  Purpose of subpart.

    This subpart prescribes special requirements applicable to
particular, named materials. These requirements are in addition to the
general requirements in subpart A applicable to those materials.



Sec. 147.40  Materials requiring Commandant (CG-OES) approval.

    (a) Commandant (CG-ENG) approval is required before the following
hazardous materials may be on board a vessel as ships' stores:
    (1) Poison gases of Class 2, Division 2.3 and toxic liquids of Class
6, Division 6.1 which are poisonous by inhalation in Hazard Zone A.
    (2) Explosives of Divisions 1.1 or 1.2.
    (3) Flammable gases, other than those addressed specifically in this
subpart.
    (4) Forbidden materials listed in 49 CFR 172.101.
    (b) Request for approval must be submitted to the Commandant (CG-
ENG), identify the material, and explain the need for its use.
    (c) Upon approval, the material is added to the list of materials
approved under this section. A copy of this list is available from the
Commandant (CG-ENG) at the address in Sec. 147.5.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 95-072, 60 FR
50465, Sept. 29, 19955; CGD 96-041, 61 FR 50731, Sept. 27, 1996; CGD 97-
057, 62 FR 51048, Sept. 30, 1997; USCG-2013-0671, 78 FR 60154, Sept. 30,
2013]



Sec. 147.45  Flammable and combustible liquids.

    (a) This section applies to the stowage and transfer of flammable
and combustible liquids (including gasoline and diesel oil), other than
liquids used as fuel for cooking, heating, and lighting under Sec.
147.50.
    (b) No flammable or combustible liquids may be stowed in any
accommodation, control, or service space (other than a paint locker).
    (c) No more than 19 liters (five gallons) of flammable liquids may
be stowed in any machinery space. The flammable liquids must be in
containers of 3.8 liters (one gallon) or less.
    (d) No more than 208 liters (55 gallons) of combustible liquids may
be stowed in any machinery space.
    (e) An aggregate of more than 7.6 liters (two gallons) of flammable
or combustible liquids stowed outside of an accommodation, control, or
service, space (other than a paint locker) or outside of a machinery
space must be stowed in a paint locker that is marked with a warning
sign indicating flammable or combustible liquid storage.
    (f) Flammable and combustible liquids used as fuel for portable
auxiliary equipment must be stored in--
    (1) Integral tanks that form part of the vessel's structure;
    (2) An independent tank meeting the requirements of subpart 58.50 of
Part 58 of this chapter;
    (3) A non-bulk packaging authorized for Class 3 (flammable) liquids
or combustible liquids under 49 CFR 173.201, 173.202, or 173.203, as
referenced for the specific liquid in column 8B of the Hazardous
Materials Table of 49 CFR 172.101.
    (4) A portable outboard fuel tank meeting the specifications of ABYC
H-25-81 (incorporated by reference, see Sec. 147.7) or one identified
by Underwriters Laboratories as meeting the specifications of UL 1185
(incorporated by reference, see Sec. 147.7);
    (5) A portable safety container identified by Underwriters
Laboratories as meeting the specifications of UL 30 or UL 1313 (both
incorporated by reference, see Sec. 147.7); or
    (6) A portable safety container identified by Underwriters
Laboratories as meeting the requirements of UL 1314 (incorporated by
reference, see Sec. 147.7).
    (g) Each portable container of flammable or combustible liquid used
for portable auxiliary equipment must be stowed in a paint locker or an
open location designated by the master.
    (h) Fuel tanks for portable auxiliary equipment using flammable or
combustible liquids may only be refilled on a vessel--
    (1) By using a container described in paragraph (f)(2), (f)(3), or
(f)(5) of this section which has a capacity not exceeding 23 liters (6
gallons); or

[[Page 9]]

    (2) In the case of portable outboard fuel tanks described in
paragraph (f)(4) of this section, in accordance with paragraph (i) of
this section.
    (i) Portable containers or portable outboard fuel tanks may be
refilled from a larger container of flammable or combustible liquid on
the weather deck of a vessel, other than a small passenger vessel
subject to Subchapter T of this chapter, provided that--
    (1) A drip pan of adequate size is used to collect any drippings;
and
    (2) At least one Coast Guard approved Type B, Size I, fire
extinguisher is within three meters (9.75 feet) of the refilling
location.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 92-100, 59 FR
17001, Apr. 11, 1994; CGD 97-057, 62 FR 51048, Sept. 30, 1997; USCG-
2006-24797, 77 FR 33885, June 7, 2012]



Sec. 147.50  Fuel for cooking, heating, and lighting.

    (a) Flammable and combustible liquids and gases not listed in this
section are prohibited for cooking, heating, or lighting on any vessel,
with the exception of combustible liquids on cargo vessels.
    (b) Fluid alcohol is prohibited for cooking, heating, or lighting on
ferry vessels. Fluid alcohol burners, where wet primed, must have a
catch pan not less than \3/4\ of an inch deep secured inside of the
frame of the stove or have the metal protection under the stove flanged
up \3/4\ of an inch to form a pan.
    (c) Containers of solidified alcohol must be secured on a fixed
base.
    (d) Liquefied or non-liquefied gas is prohibited for cooking,
heating, and lighting on ferry vessels, but may be used on other
inspected vessels if the system in which it is used meets the applicable
requirements of subpart 58.16 or subpart 184.05 of this chapter, as
appropriate, or is approved by the Commandant (CG-ENG).
    (e) Kerosene and commercial standard fuel oil No. 1, No. 2, and No.
3 are prohibited for cooking, heating, or lighting on ferry or passenger
vessels, unless the following conditions are met:
    (1) Pressure or gravity feed must be used.
    (2) Where wet priming is used in a cooking device, the device must
have a catch pan not less than three fourths of an inch deep secured
inside the frame of the device or a metal protector under the device
with a least a three fourths inch flange to form a pan.
    (3) Where wet priming is used, a non-flammable priming liquid must
be used.
    (4) Fuel tanks for fixed stoves must be separated from the stove and
mounted in a location open to the atmosphere or mounted inside a
compartment with an outside fill and vent.
    (5) Fuel lines must have an easily accessible shut-off valve at the
tank.
    (6) If the fuel tank is outside of a stove compartment, a shut-off
valve must be fitted at the stove.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 83-013, 54 FR
6402, Feb. 10, 1989; CGD 95-072, 60 FR 50465, Sept. 29, 1995; CGD 96-
041, 61 FR 50731, Sept. 27, 1996]



Sec. 147.60  Compressed gases.

    (a) Cylinder requirements. Cylinders used for containing hazardous
ships' stores that are compressed gases must be--
    (1) Authorized for the proper shipping name of the gas in accordance
with 49 CFR 172.101 and 49 CFR part 173;
    (2) Constructed in accordance with subpart C of 49 CFR part 178 or
exempted under 49 CFR part 107;
    (3) Filled, marked, and inspected in accordance with 49 CFR 173.301
through 173.308; and
    (4) Except as provided in 46 CFR 147.65, 147.66, and 147.67,
maintained and retested in accordance with 49 CFR 180.
    (b) Stowage and care of cylinders. (1) Cylinders must always be
secured and, when not in use, they must be stowed in a rack in an
upright position, with the valve protection cap in place.
    (2) Lockers or housings must be vented to the open air near the top
and bottom for positive circulation of vapors.
    (3) Cylinders must be protected from all sources of heat which may
cause the cylinders to be heated to a temperature higher than 130
[deg]F.
    (c) Pressure vessels other than cylinders. Pressure vessels, other
than cylinders subject to paragraph (a) of this section, used for
containing ships' stores that are compressed gases must--

[[Page 10]]

    (1) Be constructed and inspected in accordance with part 54 of this
chapter; and
    (2) Carry only nitrogen or air, unless permission is granted by
Commandant (CG-ENG) to do otherwise.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 95-072, 60 FR
50465, Sept. 29, 19955; CGD 96-041, 61 FR 50731, Sept. 27, 1996; USCG-
2006-24797, 77 FR 33886, June 7, 2012; USCG-2013-0671, 78 FR 60154,
Sept. 30, 2013]



Sec. 147.65  Carbon dioxide and halon fire extinguishing systems.

    (a) Carbon dioxide or halon cylinders forming part of a fixed fire
extinguishing system must be retested, at least, every 12 years. If a
cylinder is discharged and more than five years have elapsed since the
last test, it must be retested before recharging.
    (b) Carbon dioxide or halon cylinders must be rejected for further
service when they--
    (1) Leak;
    (2) Are dented, bulging, severely corroded, or otherwise in a
weakened condition;
    (3) Have lost more than five percent of their tare weight; or
    (4) Have been involved in a fire.
    (c) Cylinders which have contained carbon dioxide or halon and have
not been tested within five years must not be used to contain another
compressed gas on board a vessel, unless the cylinder is retested and
re-marked in accordance with Sec. 147.60 (a)(3) and (a)(4).
    (d) Flexible connections between cylinders and distribution piping
of semi-portable or fixed carbon dioxide fire extinguishing systems and
discharge hoses in semi-portable carbon dioxide fire extinguishing
systems must be renewed or tested at a pressure of 6.9 MPa (1000 psig).
At test pressure, the pressure must not drop at a rate greater than 1.03
MPa (150 psi) per minute for a two minute period. The test must be
performed when the cylinders are retested.
    (e) Flexible connections between cylinders and distribution piping
of fixed halon fire extinguishing systems must be tested at a pressure
of one and one-half times the cylinder service pressure as marked on the
cylinder. At test pressure, the pressure must not drop at a rate greater
than 1.03 MPa (150 psi) per minute for a two minute period. The test
must be performed when the cylinders are retested.



Sec. 147.66  Inert gas fire extinguishing systems.

    (a) Inert gas cylinders forming part of a clean agent fixed fire
extinguishing system must be retested every five years, except that
cylinders with a water capacity of 125 pounds or less may be retested
every 10 years in accordance with 49 CFR 180.209(b).
    (b) An inert gas cylinder must be removed from service if it:
    (1) Leaks;
    (2) Is dented, bulging, severely corroded, or otherwise weakened;
    (3) Has lost more than 5 percent of its tare weight; or
    (4) Has been involved in a fire.
    (c) Flexible connections between cylinders and discharge piping for
fixed inert gas fire extinguishing systems must be renewed or retested
in accordance with section 7.3 of NFPA 2001 (incorporated by reference,
see Sec. 147.7).

[USCG-2006-24797, 77 FR 33886, June 7, 2012]



Sec. 147.67  Halocarbon fire extinguishing systems.

    (a) Each halocarbon cylinder forming part of a clean agent fixed
fire extinguishing system must be:
    (1) Retested at least once every 12 years and before recharging if
it has been discharged and more than five years have elapsed since the
last test; or
    (2) As an alternative, a cylinder conforming to the requirements of
49 CFR 180.209(g) may be given the complete external visual inspection
in lieu of hydrostatic testing provided for by that section.
    (b) A halocarbon cylinder must be removed from service if it:
    (1) Leaks;
    (2) Is dented, bulging, severely corroded, or otherwise weakened;
    (3) Has lost more than 5 percent of its tare weight; or
    (4) Has been involved in a fire.
    (c) Flexible connections between cylinders and discharge piping for
halocarbon fire extinguishing systems

[[Page 11]]

must be renewed or retested in accordance with section 7.3 of NFPA 2001
(incorporated by reference, see Sec. 147.7).

[USCG-2006-24797, 77 FR 33886, June 7, 2012]



Sec. 147.70  Acetylene.

    (a) Seventeen cubic meters (600 standard cubic feet) or less of
acetylene may be stowed on or below decks on any vessel.
    (b) More than 17 m\3\ (600 standard cubic feet) of acetylene may be
on board a vessel engaged in industrial operations, if it is stowed on
deck.



Sec. 147.85  Oxygen.

    (a) Eighty five cubic meters (3000 standard cubic feet) or less of
oxygen may be on board any vessel.
    (b) More than 85 m\3\ (3000 standard cubic feet) of oxygen may be on
board a vessel engaged in industrial operations, if it is stowed on deck
or in a well ventilated space.



Sec. 147.90  Refrigerants.

    (a) Only refrigerants listed in ANSI/ASHRAE 34-78 may be carried as
ships' stores.
    (b) Refrigerants contained in a vessel's operating system are not
considered as being carried as ship's stores.



Sec. 147.95  Explosives.

    (a) Explosives--general. Except as provided for elsewhere in this
subchapter, explosives, as defined in 49 CFR 173.50, which are hazardous
ships' stores must be stowed in accordance with 49 CFR 176.116 through
176.138.
    (b) Small arms ammunition. (1) No person shall bring, have in their
possession, or use on board a vessel any small arms ammunition, except
by express permission of the master of the vessel.
    (2) All small arms ammunition must be stowed and locked in a metal
closed cargo transport unit for Class 1 (explosive) materials as defined
in 49 CFR 176.2. The key to the cargo transport unit must be kept in the
possession of the master or a person designated by the master.
    (c) Ships' signals and emergency equipment. (1) Explosive ships'
signals and emergency equipment, including pyrotechnic distress signals
and line throwing equipment, must be stowed in watertight containers or
wood lined magazine chests.
    (2) All pyrotechnic distress signals, rockets, and line throwing
guns must be stowed in accordance with the requirements of 49 CFR
176.140 through 176.146.

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 92-100, 59 FR
17001, Apr. 11, 1994; CGD 97-057, 62 FR 51048, Sept. 30, 1997; USCG-
2013-0671, 78 FR 60154, Sept. 30, 2013]



Sec. 147.100  Radioactive materials.

    (a) Radioactive materials must not be brought on board, used in any
manner, or stored on the vessel, unless the use of the materials is
authorized by a current license issued by the Nuclear Regulatory
Commission (NRC) under 10 CFR parts 30 and 34.
    (b) Stowage of radioactive materials must conform to the
requirements of the NRC license.



Sec. 147.105  Anesthetics, drugs, and medicines.

    Anesthetics, drugs, and medicines must be stowed and dispensed in
accordance with the DHHS Publication No. (PHS) 84-2024.



PART 147A_INTERIM REGULATIONS FOR SHIPBOARD FUMIGATION--Table of
Contents



                                 General

Sec.
147A.1 Purpose.
147A.3 Applicability.
147A.5 General requirement.
147A.6 Right of appeal
147A.7 Definitions.
147A.9 Persons in charge of fumigation and the vessel; designation.
147A.10 Notice to Captain of the Port.

                            Before Fumigation

147A.11 Person in charge of fumigation; before fumigation.
147A.13 Person in charge of the vessel; before fumigation.

                            During Fumigation

147A.21 Person in charge of fumigation; during fumigation.
147A.23 Person in charge of vessel; during fumigation.
147A.25 Entry.

                            After Ventilation

147A.31 Removal of fumigation material and warning signs.

[[Page 12]]

              Special Requirements for Flammable Fumigants

147A.41 Person in charge of fumigation; flammable fumigants.
147A.43 Other sources of ignition; flammable fumigants.

    Authority: 46 U.S.C. 5103; Department of Homeland Security
Delegation No. 0170.1.

    Source: CGD 74-144, 39 FR 32998, Sept. 13, 1974, unless otherwise
noted.

                                 General



Sec. 147A.1  Purpose.

    The purpose of this part is to prescribe the requirements for
shipboard fumigation that are critical for the health and safety of the
crew and any other person who is on board a vessel during fumigation.
These are interim rules pending further study and promulgation of
comprehensive regulations on shipboard fumigation.



Sec. 147A.3  Applicability.

    This part prescribes the rules for shipboard fumigation on vessels
to which 49 CFR parts 171-179 apply under 49 CFR 176.5.

[CGD 86-033, 53 FR 36026, Sept. 16, 1988]



Sec. 147A.5  General requirement.

    No person may cause or authorize shipboard fumigation contrary to
the rules in this part.



Sec. 147A.6  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



Sec. 147A.7  Definitions.

    As used in this part:
    (a) Qualified person means a person who has experience with the
particular fumigant or knowledge of its properties and is familiar with
fumigant detection equipment and procedures, or an applicator who is
certified by the Environmental Protection Agency if his certification
covers the fumigant that is used.
    (b) Fumigant means a substance or mixture of substances that is a
gas or is rapidly or progressively transformed to the gaseous state
though some nongaseous or particulate matter may remain in the space
that is fumigated.
    (c) Fumigation means the application of a fumigant on board a vessel
to a specific treatment space.



Sec. 147A.9  Persons in charge of fumigation and the vessel;
designation.

    (a) The person, including any individual, firm, association,
partnership, or corporation, that is conducting a fumigation operation
shall designate a person in charge of fumigation for each operation.
    (b) The operator of each vessel shall designate a person in charge
of the vessel for each fumigation operation.



Sec. 147A.10  Notice to Captain of the Port.

    Unless otherwise authorized by the Captain of the Port, at least 24
hours before fumigation the operator of the vessel shall notify the
Coast Guard Captain of the Port, for the area where the vessel is to be
fumigated, of the time and place of the fumigation, and the name of the
vessel that is to be fumigated.

                            Before Fumigation



Sec. 147A.11  Person in charge of fumigation; before fumigation.

    (a) The person in charge of fumigation shall notify the person in
charge of the vessel of:
    (1) The space that is to be fumigated;
    (2) The name, address, and emergency telephone number of the
fumigation company;
    (3) The dates and times of fumigation;
    (4) The characteristics of the fumigant;
    (5) The spaces that are determined to be safe for occupancy
paragraph (b)(1)(i) of this section;
    (6) The maximum allowable concentration of fumigant in spaces, if
any, that are determined to be safe for occupancy under paragraph
(b)(1)(i) of this section;
    (7) The symptoms of exposure to the fumigant; and
    (8) Emergency first aid treatment for exposure to the fumigant.
    (b) The person in charge of fumigation shall ensure that:

[[Page 13]]

    (1) A marine chemist or other qualified person who has knowledge of
and experience in shipboard fumigation evaluates the vessel's
construction and configuration and determines:
    (i) Which spaces, if any, are safe for occupancy during fumigation;
and
    (ii) The intervals that inspections must be made under Sec.
147A.21(a)(1);
    (2) No persons or domestic animals are in the space that is to be
fumigated or the spaces that are designated as unsafe for occupancy
under paragraph (b)(1)(i) of this section;
    (3) There is proper and secure sealing to confine the fumigant to
the space that is to be fumigated, including blanking off and sealing
any ventilation ducts and smoke detectors;
    (4) The personal protection and fumigation detection equipment for
the fumigant that is to be used is on board the vessel;
    (5) Warning signs are:
    (i) Posted upon all gangplanks, ladders, and other points of access
to the vessel;
    (ii) Posted on all entrances to the spaces that are designated as
unsafe for occupancy under paragraph (b)(1)(i) of this section; and
    (iii) In accordance with 49 CFR 173.9(c) or section 8.10 of the
General Introduction of the International Maritime Dangerous Goods Code.
The word ``unit'' on the warning sign may be replaced with ``vessel,''
``barge,'' ``hold,'' or ``space,'' as appropriate.
    (6) Watchmen are stationed at all entrances to:
    (i) Spaces that are not determined to be safe for occupancy under
paragraph (b)(1)(i) of this section; or
    (ii) The vessel, if no spaces are determined to be safe for
occupancy under paragraph (b)(1)(i) of this section.

[CGD 74-144, 39 FR 32998, Sept. 13, 1974; 39 FR 37771, Oct. 24, 19745;
CGD 96-041, 61 FR 50731, Sept. 27, 1996; CGD 97-057, 62 FR 51048, Sept.
30, 1997]



Sec. 147A.13  Person in charge of the vessel; before fumigation.

    (a) After notice under Sec. 147A.11 (a)(5), the person in charge of
the vessel shall notify the crew and all other persons on board the
vessel who are not participating in the fumigation of the spaces that
are determined to be safe for occupancy under Sec. 147A.11(b)(1)(i).
    (b) If no spaces are determined to be safe for occupancy under Sec.
147A.11 (b)(1)(i), the person in charge of the vessel shall ensure that
the crew and all persons who are not participating in the fumigation
leave the vessel and remain away during fumigation.

                            During Fumigation



Sec. 147A.21  Person in charge of fumigation; during fumigation.

    (a) Until ventilation begins, or until the vessel leaves port, the
person in charge of fumigation shall ensure that a qualified person
inspects the vessel as follows:
    (1) He must use detection equipment for the fumigant that is used to
ensure that the fumigant is confined to:
    (i) The space that is fumigated, if partial occupancy is allowed
under Sec. 147A.11(b)(1)(i); or
    (ii) The vessel, if no space is determined to be safe for occupancy
under Sec. 147A.11(b)(1)(i).
    (2) He must make inspections at the intervals that are determined to
be necessary by the marine chemist or qualified person under Sec.
147A.11 (b)(1)(ii).
    (b) If leakage occurs, the person in charge of fumigation shall:
    (1) Notify the person in charge of the vessel that there is leakage;
    (2) Ensure that all necessary measures are taken for the health and
safety of any person; and
    (3) Notify the person in charge of the vessel when there is no
danger to the health and safety of any person.
    (c) After the exposure period, if the vessel is in port, the person
in charge of fumigation shall ensure that fumigators or other qualified
persons ventilate the space that is fumigated as follows:
    (1) Hatch covers and vent seals must be removed, other routes of
access to the atmosphere must be opened, and if necessary, mechanical
ventilation must be used.
    (2) Personal protection equipment that is appropriate for the
fumigant that is used must be worn.
    (d) If ventilation is completed before the vessel leaves port, the
person in charge of fumigation shall:

[[Page 14]]

    (1) Ensure that a qualified person, who is wearing the personal
protection equipment for the fumigant that is used if remote detection
equipment is not used, tests the space that is fumigated and determines
if there is any danger to the health and safety of any person, including
a danger from fumigant that may be retained in bagged, baled, or other
absorbent cargo;
    (2) Notify the person in charge of the vessel of this determination;
and
    (3) If it is determined that there is a danger:
    (i) Ensure that all measures are taken that are necessary for the
health and safety of all persons; and
    (ii) Notify the person in charge of the vessel when there is no
danger to the health and safety of any person.



Sec. 147A.23  Person in charge of vessel; during fumigation.

    (a) The person in charge of the vessel shall ensure that the crew
and all other persons on board the vessel who are not participating in
the fumigation restrict their movement during fumigation to the spaces
that are determined to be safe for occupancy under Sec.
147A.11(b)(1)(i).
    (b) The person in charge of the vessel shall ensure that the crew
and all other persons who are not participating in the fumigation follow
any instructions of the person in charge of fumigation that are issued
under Sec. 147A.21(b)(2) or (d)(3)(i) and that the vessel does not
leave port if he is notified under:
    (1) Section 147A.21(b)(1) that there is leakage, unless the person
in charge of fumigation notifies him under Sec. 147A.21(b)(3) of this
subpart that there is no danger; or
    (2) Section 147A.21(d)(2) that there is a danger after ventilation,
unless the person in charge of the fumigation notifies him under Sec.
147A.21(d)(3)(ii) that there is no danger.
    (c) If fumigation is not completed before the vessel leaves port,
the person in charge of the vessel shall ensure that personal protection
and fumigant detection equipment for the fumigant that is used is on
board the vessel.
    (d) If the vessel leaves port before fumigation is completed, the
person in charge of the vessel shall ensure that a qualified person
makes periodic inspections until ventilation is completed and this
person shall use detection equipment for the fumigant that is used to
determine if:
    (1) There is leakage of fumigant; or
    (2) There is a concentration of fumigant that is a danger to the
health and safety of any person.
    (e) If the qualified person determines under paragraph (d) of this
section that there is leakage or a concentration of fumigant that is a
danger to the health and safety of any person, the person in charge of
the vessel shall take all measures that are, in his discretion,
necessary to ensure health and safety of all persons who are on board
the vessel. If the danger is due to leakage, he shall also ensure that
qualified persons immediately ventilate in accordance with paragraphs
(c)(1) and (2) of Sec. 147A.21.
    (f) If the vessel leaves port during the exposure period, the person
in charge of the vessel shall ensure that the space that is fumigated is
ventilated by qualified persons after the exposure period in accordance
with paragraphs (c) (1) and (2) of Sec. 147A.21.
    (g) If ventilation is completed after the vessel leaves port, the
person in charge of the vessel shall ensure that a qualified person, who
is wearing the personal protection equipment for the fumigant that is
used if remote detection equipment is not used, tests the space that is
fumigated to determine if there is a danger to the health and safety of
any person, including a danger from fumigant that may be retained in
bagged, baled, or other absorbent cargo. If the qualified person
determines that there is a danger, the person in charge of the vessel
shall take all measures that are, in his discretion, necessary to ensure
the health and safety of all persons who are on board the vessel.



Sec. 147A.25  Entry.

    (a) No person may enter the spaces that immediately adjoin the space
that is fumigated during fumigation unless entry is for emergency
purposes or the space is tested and declared safe for human occupancy by
a marine chemist or other qualified person and is inspected under Sec.
147A.21(a)(2) or Sec. 147A.23(d).

[[Page 15]]

    (b) If entry is made for emergency purposes:
    (1) No person may enter the space that is fumigated or any adjoining
spaces during fumigation unless he wears the personal protection
equipment for the fumigant that is in use;
    (2) No person may enter the space that is fumigated unless the entry
is made by a two person team; and
    (3) No person may enter the space that is fumigated unless he wears
a lifeline and safety harness and each life-line is tended by a person
who is outside the space and who is wearing the personal protection
equipment for the fumigant that is in use.

                            After Ventilation



Sec. 147A.31  Removal of fumigation material and warning signs.

    After ventilation is completed and a marine chemist or other
qualified person determines that there is no danger to the health and
safety of any person under Sec. 147A.21(d) or Sec. 147A.23(g), the
person in charge of fumigation, or, if the vessel has left port, the
person in charge of the vessel, shall ensure that all warning signs are
removed and fumigation containers and materials are removed and disposed
of in accordance with the manufacturer's recommendations.

              Special Requirements for Flammable Fumigants



Sec. 147A.41  Person in charge of fumigation; flammable fumigants.

    (a) The person in charge of fumigation shall ensure that:
    (1) Before the space that is to be fumigated is sealed, it is
thoroughly cleaned, and all refuse, oily waste, and other combustible
material is removed;
    (2) Before fumigation, all fire fighting equipment, including
sprinklers and fire pumps, is in operating condition; and
    (3) Before and during fumigation, electrical circuits that are in
the space that is fumigated are de-energized.
    (b) [Reserved]



Sec. 147A.43  Other sources of ignition; flammable fumigants.

    While the space that is fumigated is being sealed or during
fumigation, no person may use matches, smoking materials, fires, open
flames, or any other source of ignition in any spaces that are not
determined to be safe for occupancy under Sec. 147A.11(b)(1)(i).



PART 148_CARRIAGE OF BULK SOLID MATERIALS THAT REQUIRE SPECIAL
HANDLING--Table of Contents



                            Subpart A_General

Sec.
148.1 Purpose and applicability.
148.2 Responsibility and compliance.
148.3 Definitions.
148.5 Alternative procedures.
148.7 OMB control numbers assigned under the Paperwork Reduction Act.
148.8 Incorporation by reference.
148.9 Right of appeal.
148.10 Permitted materials.
148.11 Hazardous or potentially dangerous characteristics.
148.12 Assignment and certification.

                        Subpart B_Special Permits

148.15 Petition for a special permit.
148.20 Deadlines for submission of petition and related requests.
148.21 Necessary information.
148.25 Activities covered by a special permit.
148.26 Standard conditions for special permits.
148.30 Records of special permits issued.

              Subpart C_Minimum Transportation Requirements

148.50 Cargoes subject to this subpart.
148.51 Temperature readings.
148.55 International shipments.
148.60 Shipping papers.
148.61 Emergency response information.
148.62 Location of shipping papers and emergency response information.
148.70 Dangerous cargo manifest; general.
148.71 Information included in the dangerous cargo manifest.
148.72 Dangerous cargo manifest; exceptions.
148.80 Supervision of cargo transfer.
148.85 Required equipment for confined spaces.
148.86 Confined space entry.
148.90 Preparations before loading.
148.100 Log book entries.
148.110 Procedures followed after unloading.
148.115 Report of incidents.

                    Subpart D_Stowage and Segregation

148.120 Stowage and segregation requirements.

[[Page 16]]

148.125 Stowage and segregation for materials of Class 4.1.
148.130 Stowage and segregation for materials of Class 4.2.
148.135 Stowage and segregation for materials of Class 4.3.
148.140 Stowage and segregation for materials of Class 5.1.
148.145 Stowage and segregation for materials of Class 7.
148.150 Stowage and segregation for materials of Class 9.
148.155 Stowage and segregation for potentially dangerous materials.

          Subpart E_Special Requirements for Certain Materials

148.200 Purpose.
148.205 Ammonium nitrate and ammonium nitrate fertilizers.
148.220 Ammonium nitrate-phosphate fertilizers.
148.225 Calcined pyrites (pyritic ash, fly ash).
148.227 Calcium nitrate fertilizers.
148.230 Calcium oxide (lime, unslaked).
148.235 Castor beans.
148.240 Coal.
148.242 Copra.
148.245 Direct reduced iron (DRI); lumps, pellets, and cold-molded
          briquettes.
148.250 Direct reduced iron (DRI); hot-molded briquettes.
148.255 Ferrosilicon, aluminum ferrosilicon, and aluminum silicon
          containing more than 30% but less than 90% silicon.
148.260 Ferrous metal.
148.265 Fish meal or fish scrap.
148.270 Hazardous substances.
148.275 Iron oxide, spent; iron sponge, spent.
148.280 Magnesia, unslaked (lightburned magnesia, calcined magnesite,
          caustic calcined magnesite).
148.285 Metal sulfide concentrates.
148.290 Peat moss.
148.295 Petroleum coke, calcined or uncalcined, at 55 [deg]C (131
          [deg]F) or above.
148.300 Radioactive materials.
148.310 Seed cake.
148.315 Sulfur.
148.320 Tankage; garbage tankage; rough ammonia tankage; or tankage
          fertilizer.
148.325 Wood chips; wood pellets; wood pulp pellets.
148.330 Zinc ashes; zinc dross; zinc residues; zinc skimmings.

                Subpart F_Additional Special Requirements

148.400 Applicability.
148.405 Sources of ignition.
148.407 Smoking.
148.410 Fire hoses.
148.415 Toxic gas analyzers.
148.420 Flammable gas analyzers.
148.435 Electrical circuits in cargo holds.
148.445 Adjacent spaces.
148.450 Cargoes subject to liquefaction.

    Authority: 33 U.S.C. 1602; E.O. 12234, 45 FR 58801, 3 CFR, 1980
Comp., p. 277; 46 U.S.C. 3306, 5111; 49 U.S.C. 5103; Department of
Homeland Security Delegation No. 0170.1.

    Source: 75 FR 64591, Oct. 19, 2010, unless otherwise noted.

    Editorial Note: Nomenclature changes to part 148 appear by USCG-
2012-0832, 77 FR 59783, Oct. 1, 2012.



                            Subpart A_General



Sec. 148.1  Purpose and applicability.

    (a) This part prescribes special handling procedures for certain
solid materials that present hazards when transported in bulk by vessel.
    (b) Except as noted in paragraph (c) of this section, this part
applies to all domestic and foreign vessels in the navigable waters of
the United States that transport bulk solid materials requiring special
handling.
    (c) This part does not apply to an unmanned barge on a domestic
voyage carrying a Potentially Dangerous Material (PDM) found in Table
148.10 of this part. All barges on international voyages must follow the
requirements for PDM.
    (d) The regulations in this part have preemptive impact over State
law on the same subject. The Coast Guard has determined, after
considering the factors developed by the Supreme Court in U.S. v. Locke,
529 U.S. 89 (2000), that in directing the Secretary to regulate the safe
transportation of hazardous material and the safety of individuals and
property on board vessels subject to inspection, as well as the
provision of loading information, Congress intended to preempt the field
of safety standards for solid materials requiring special handling when
transported in bulk on vessels.



Sec. 148.2  Responsibility and compliance.

    Each master of a vessel, person in charge of a barge, owner,
operator, shipper, charterer, or agent must ensure compliance with this
part. These persons are also responsible for communicating requirements
to every person performing any function covered by this part.

[[Page 17]]



Sec. 148.3  Definitions.

    As used in this part--
    A-60 class division means a division as defined in Sec. 32.57-5 of
this chapter.
    Adjacent space means any enclosed space on a vessel, such as a cargo
hold, cargo compartment, accommodation space, working space, storeroom,
passageway, or tunnel, that shares a common bulkhead or deck with a
hatch, door, scuttle, cable fitting or other penetration, with a cargo
hold or compartment containing a material listed in Table 148.10 of this
part.
    Away from means a horizontal separation of at least 3 meters (10
feet) projected vertically is maintained between incompatible materials
carried in the same hold or on deck.
    Bulk applies to any solid material, consisting of a combination of
particles, granules, or any larger pieces of material generally uniform
in composition, that is loaded directly into the cargo spaces of a
vessel without any intermediate form of containment.
    Bulk Cargo Shipping Name or BCSN identifies a bulk solid material
during transport by sea. When a cargo is listed in this Part, the BCSN
of the cargo is identified by Roman type and is listed in Column 1 of
Table 148.10 of this part. When the cargo is a hazardous material, as
defined in 49 CFR part 173, the proper shipping name of that material is
the BCSN.
    Cold-molded briquettes are briquettes of direct reduced iron (DRI)
that have been molded at a temperature of under 650 [deg]C (1,202
[deg]F) or that have a density of under 5.0 g/cm3;.
    Commandant (CG-ENG-5) means the Chief, Hazardous Materials Division
of the Office of Design and Engineering Systems. The mailing address is:
Commandant (CG-ENG-5), Attn: Hazardous Materials Division, U.S. Coast
Guard Stop 7509, 2703 Martin Luther King Jr. Avenue SE., Washington, DC
20593-7509; telephone 202-372-1420 or email [email protected].
    Compartment means any space on a vessel that is enclosed by the
vessel's decks and its sides or permanent steel bulkheads.
    Competent authority means a national agency responsible under its
national law for the control or regulation of a particular aspect of the
transportation of hazardous materials.
    Confined space means a cargo hold containing a material listed in
Table 148.10 of this part or an adjacent space not designed for human
occupancy.
    Domestic voyage means transportation between places within the
United States other than through a foreign country.
    Hazard class means the category of hazard assigned to a material
under this part and 49 CFR parts 171 through 173.

                        Hazard Class Definitions

 Hazard Classes Used in This Part Are Defined in the Following Sections
                               of Title 49
------------------------------------------------------------------------
                Division No. (if                              Reference
  Class No.           any)                Description          (49 CFR)
------------------------------------------------------------------------
1............  1.1, 1.2, 1.3,      Explosives..............         Sec.
                1.4, 1.5, 1.6.                                    173.50
2............  2.1, 2.2, 2.3.....  Flammable Gas, Non-              Sec.
                                    Flammable Compressed         173.115
                                    Gas, Poisonous Gas.
3............  ..................  Flammable and                    Sec.
                                    Combustible Liquid.          173.120
4............  4.1, 4.2, 4.3.....  Flammable Solid,                 Sec.
                                    Spontaneously                173.124
                                    Combustible Material,
                                    Dangerous When Wet
                                    Material.
5............  5.1...............  Oxidizer................         Sec.
                                                                 173.127
5............  5.2...............  Organic Peroxide........         Sec.
                                                                 173.128
6............  6.1...............  Poisonous Materials.....         Sec.
                                                                 173.132
6............  6.2...............  Infectious Substance....         Sec.
                                                                 173.134
7............  ..................  Radioactive Material....         Sec.
                                                                 173.403
8............  ..................  Corrosive Material......         Sec.
                                                                 173.136
9............  ..................  Miscellaneous Hazardous          Sec.
                                    Material.                    173.140
------------------------------------------------------------------------

    Hazardous substance is a hazardous substance as defined in 49 CFR
171.8.
    Hold means a compartment below deck that is used exclusively for the
stowage of cargo.

[[Page 18]]

    Hot-molded briquettes are briquettes of DRI that have been molded at
a temperature of 650 [deg]C (1,202 [deg]F) or higher, and that have a
density of 5.0 g/cm3 (312 lb/ft3) or greater.
    IMSBC Code means the English version of the ``International Maritime
Solid Bulk Cargoes Code'' published by the International Maritime
Organization (incorporated by reference, see Sec. 148.8).
    Incompatible materials means two materials whose stowage together
may result in undue hazards in the case of leakage, spillage, or other
accident.
    International voyage means voyages--
    (1) Between any place in the United States and any place in a
foreign country;
    (2) Between places in the United States through a foreign country;
or
    (3) Between places in one or more foreign countries through the
United States.
    Lower flammability limit or LFL means the lowest concentration of a
material or gas that will propagate a flame. The LFL is usually
expressed as a percent by volume of a material or gas in air.
    Master means the officer having command of a vessel. The functions
assigned to the master in this part may also be performed by a
representative of the master or by a person in charge of a barge.
    Material safety data sheet or MSDS is as defined in 29 CFR
1910.1200.
    Person in charge of a barge means an individual designated by the
owner or operator of a barge to have charge of the barge.
    Potentially Dangerous Material or PDM means a material that does not
fall into a particular hazard class but can present a danger when
carried in bulk aboard a vessel. The dangers often result from the
material's tendency to self-heat or cause oxygen depletion. Materials
that present a potential danger due solely to their tendency to shift in
the cargo hold are not PDMs. For international shipments prepared in
accordance with the IMSBC Code (incorporated by reference, see Sec.
148.8), equivalent terminology to PDM is Material Hazardous only in Bulk
(MHB).
    Readily combustible material means a material that may not be a
hazardous material but that can easily ignite and support combustion.
Examples are wood, straw, vegetable fibers, and products made from these
materials, and coal lubricants and oils. The term does not include
packaging material or dunnage.
    Reportable quantity or RQ means the quantity of a hazardous
substance spilled or released that requires a report to the National
Response Center. The specific RQs for each hazardous substance are
available in 49 CFR 172.101, Appendix A.
    Responsible person means a knowledgeable person who the master of a
vessel or owner or operator of a barge makes responsible for all
decisions relating to his or her specific task.
    Seed cake means the residue remaining after vegetable oil has been
extracted by a solvent or mechanical process from oil-bearing seeds,
such as coconuts, cotton seed, peanuts, and linseed.
    Shipper means any person by whom, or in whose name, or on whose
behalf, a contract of carriage of goods by sea has been concluded with a
carrier; or any person by whom or in whose name, or on whose behalf, the
goods are actually delivered to the carrier in relation to the contract
of carriage by sea.
    Shipping paper means a shipping order, bill of lading, manifest, or
other shipping document serving a similar purpose.
    Stowage factor means the volume in cubic meters of 1,000 kilograms
(0.984 long tons) of a bulk solid material.
    Threshold limit value or TLV means the time-weighted average
concentration of a material that the average worker can be exposed to
over a normal eight-hour working day, day after day, without adverse
effect. This is a trademark term of the American Conference of
Governmental Industrial Hygienists (ACGIH).
    Transported includes the various operations associated with cargo
transportation, such as loading, off-loading, handling, stowing,
carrying, and conveying.
    Trimming means any leveling of a cargo within a cargo hold or
compartment, either partial or total.
    Tripartite agreement means an agreement between the national
administrations of the port of loading, the port of

[[Page 19]]

discharge, and the flag state of the vessel, on the conditions of
carriage of a cargo.
    Ventilation means exchange of air from outside to inside a cargo
space and includes the following types:
    (1) Continuous ventilation means ventilation that is operating at
all times. Continuous ventilation may be either natural or mechanical;
    (2) Mechanical ventilation means power-generated ventilation;
    (3) Natural ventilation means ventilation that is not power-
generated; and
    (4) Surface ventilation means ventilation of the space above the
cargo. Surface ventilation may be either natural or mechanical.
    Vessel means a cargo ship or barge.

[75 FR 64591, Oct. 19, 2010, as amended by USCG-2013-0671, 78 FR 60154,
Sept. 30, 2013]



Sec. 148.5  Alternative procedures.

    (a) The Commandant (CG-ENG-5) may authorize the use of an
alternative procedure, including exemptions to the IMSBC Code
(incorporated by reference, see Sec. 148.8), in place of any
requirement of this part if it is demonstrated to the satisfaction of
the Coast Guard that the requirement is impracticable or unnecessary and
that an equivalent level of safety can be maintained.
    (b) Each request for authorization of an alternative procedure
must--
    (1) Be in writing;
    (2) Name the requirement for which the alternative is requested; and
    (3) Contain a detailed explanation of--
    (i) Why the requirement is impractical or unnecessary; and
    (ii) How an equivalent level of safety will be maintained.



Sec. 148.7  OMB control numbers assigned under the Paperwork Reduction
Act.

    The information collection requirements in this part are approved by
the Office of Management and Budget, and assigned OMB control number
1625-0025.



Sec. 148.8  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part
with the approval of the Director of the Federal Register under 5 U.S.C.
552(a) and 1 CFR part 51. To enforce any edition other than that
specified in this section, the Coast Guard must publish notice of change
in the Federal Register and the material must be available to the
public. All approved material is available for inspection at the
National Archives and Records Administration (NARA). For information on
the availability of this material at NARA, call 202-741-6030 or go to
http://www.archives.gov/federal--register/code--of--federal--
regulations/ibr--locations.html. Also, it is available for inspection at
the Coast Guard Headquarters. Contact Commandant (CG-ENG-5), Attn:
Hazardous Materials Division, U.S. Coast Guard Stop 7509, 2703 Martin
Luther King Jr. Avenue SE., Washington, DC 20593-7509. The material is
also available from the sources listed in paragraphs (b) and (c) of this
section.
    (b) International Maritime Organization (IMO), 4 Albert Embankment,
London SE1 7SR, United Kingdom, +44 (0)20 7735 7611, http://www.imo.org.
    (1) International Maritime Solid Bulk Cargoes Code and Supplement,
2009 edition (``IMSBC Code''), incorporation by reference, excluding
supplemental materials, approved for Sec. Sec. 148.3; 148.5(a);
148.15(d); 148.55(b); 148.205(b); 148.220(b) and (c); 148.240(h);
148.450(a), (d), and (g).
    (2) [Reserved]
    (c) United Nations Publications, 2 United Nations Plaza, Room DC2-
853, Dept. C089, New York, NY 10017, (800) 253-9646, http://unp.un.org.
    (1) Recommendations on the Transport of Dangerous Goods, Manual of
Tests and Criteria, Fifth revised edition (2009) (``UN Manual of Tests
and Criteria''), incorporation by reference approved for Sec. Sec.
148.205(b); 148.220(b) and (c).
    (2) [Reserved]

[75 FR 64591, Oct. 19, 2010, as amended by USCG-2013-0671, 78 FR 60154,
Sept. 30, 2013]



Sec. 148.9  Right of appeal.

    Any person directly affected by enforcement of this part by or on
behalf of the Coast Guard may appeal the decision or action under
Subpart 1.03 of this chapter.

[[Page 20]]



Sec. 148.10  Permitted materials.

    (a) A material listed in Table 148.10 of this section may be
transported as a bulk solid cargo on a vessel if it is carried according
to this part. A material that is not listed in Table 148.10 of this
section, but which is hazardous or a Potentially Dangerous Material
(PDM), requires a Special Permit under Sec. 148.15 of this part to be
transported on the navigable waters of the United States.
    (b) For each listed material, Table 148.10 identifies the hazard
class and gives the BCSN or directs the user to the preferred BCSN. In
addition, the table lists specific hazardous or potentially dangerous
characteristics associated with each material and specifies or
references detailed special requirements in this part pertaining to the
stowage or transport of specific bulk solid materials. The column
descriptions for Table 148.10 are defined as follows:
    (1) Column 1: Bulk Solid Material Descriptions and Bulk Cargo
Shipping Names (BCSN). Column 1 lists the bulk solid material
descriptions and the BCSNs of materials designated as hazardous or PDM.
BCSNs are limited to those shown in Roman type. Trade names and
additional descriptive text are shown in italics.
    (2) Column 2: I.D. Number. Column 2 lists the identification number
assigned to each BCSN associated with a hazardous material. Those
preceded by the letters ``UN'' are associated with BCSNs considered
appropriate for international voyages as well as domestic voyages. Those
preceded by the letters ``NA'' are associated with BCSNs not recognized
for international voyages, except to and from Canada.
    (3) Column 3: Hazard Class or Division. Column 3 designates the
hazard class or division, or PDM, as appropriate, corresponding to each
BCSN.
    (4) Column 4: References. Column 4 refers the user to the preferred
BCSN corresponding to bulk solid material descriptions listed in Column
1.
    (5) Column 5: Hazardous or Potentially Dangerous Characteristics.
Column 5 specifies codes for hazardous or potentially dangerous
characteristics applicable to specific hazardous materials or PDMs.
Refer to Sec. 148.11 of this part for the meaning of each code.
    (6) Column 6: Other Characteristics. Column 6 contains other
pertinent characteristics applicable to specific bulk solid materials
listed in Column 1.
    (7) Column 7: Special Requirements. Column 7 specifies the
applicable sections of Part 148 of this chapter that contain detailed
special requirements pertaining to stowage and/or transportation of
specific bulk solid materials in this part. This column is completed in
a manner which indicates that ``Sec. 148.'' precedes the designated
numerical entry.
    (c) The following requirements apply to combinations of bulk solids
carried at the same time and in the same compartment or hold:

------------------------------------------------------------------------
  Combinations of bulk solid materials             Requirements
------------------------------------------------------------------------
(1) Material listed in Table 148.10      Requirements specified in Table
 carried with any other non-hazardous     148.10 for the listed
 bulk solid material.                     material.
(2) Material carried under Special       Requirements specified in the
 Permit with any non-hazardous bulk       Special Permit.
 solid material.
(3) Two or more materials listed in      Must apply for a Special
 Table 148.10.                            Permit.
------------------------------------------------------------------------

    (d) An owner, agent, master, operator, or person in charge of a
vessel or barge carrying materials listed in Table 148.10 of this
section must follow the requirements contained in 46 CFR part 4 for
providing notice and reporting of marine casualties and retaining voyage
records.

[[Page 21]]



                                                   Table 148.10--Bulk Solid Hazardous Materials Table
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                              Hazardous or
                                                                                               potentially                                    Special
 Bulk solid material descriptions and                 Hazard                                    dangerous                                  requirements
       bulk cargo shipping names         I.D. No.    class or           References           characteristics     Other characteristics     (Sec. 148.*
                                                     division                                   (see Sec. * *)
                                                                                                 148.11)
--------------------------------------------------------------------------------------------------------------------------------------------------------
(1)                                           (2)          (3)  (4)......................                 (5)  (6)......................             (7)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Aluminum Ferrosilicon Powder..........     UN1395     4.3, 6.1  .........................                2, 3  Fine powder or briquettes       135, 255,
                                                                                                                                            405(b), 407,
                                                                                                                                           415(a) & (e),
                                                                                                                                             420(b), 445
Aluminum Nitrate......................     UN1438          5.1  .........................                   4  Colorless or white                    140
                                                                                                                crystals.
Aluminum Silicon Powder, Uncoated.....     UN1398          4.3  .........................                2, 3  .........................       135, 255,
                                                                                                                                             405(b), 407
                                                                                                                                           415(a) & (e),
                                                                                                                                             420(b), 445
Aluminum Smelting By-products or           UN3170          4.3  .........................             1, 2, 3  Includes aluminum dross,     135, 405(b),
 Aluminum Re-melting Byproducts.                                                                                residues, spent              420(b), 445
                                                                                                                cathodes, spent
                                                                                                                potliner, and skimmings.
Ammonium Nitrate......................     UN1942          5.1  .........................               5, 27  .........................       140, 205,
                                                                                                                                            405(a), 407,
                                                                                                                                                     410
Ammonium Nitrate Based Fertilizer.....     UN2067          5.1  .........................               5, 27  .........................       140, 205,
                                                                                                                                            405(a), 407,
                                                                                                                                                     410
Ammonium Nitrate Based Fertilizer.....     UN2071            9  .........................                   6  Nitrogen, Phosphate, or         140, 220,
                                                                                                                Potash.                      405(a), 407
Barium Nitrate........................     UN1466     5.1, 6.1  .........................                4, 7  .........................             140
Brown Coal Briquettes.................  .........          PDM  .........................      11, 12, 14, 25  .........................       155, 240,
                                                                                                                                            405(b), 407,
                                                                                                                                                 415(b),
                                                                                                                                             420(a), 445
Calcium fluoride......................  .........  ...........  See Fluorospar...........  ..................  .........................
Calcium Nitrate.......................     UN1454          5.1  .........................                   4  White crystals or powder.        140, 227
Calcium Oxide.........................  .........  ...........  See Lime, Unslaked.......  ..................  .........................
Castor Beans..........................     UN2969            9  .........................                  10  Whole beans..............        150, 235
Charcoal..............................  .........          PDM  .........................           1, 11, 12  Screenings, briquettes...             155
Chili Saltpeter.......................  .........  ...........  See Sodium Nitrate.......  ..................  .........................
Chilean Natural Nitrate...............  .........  ...........  See Sodium Nitrate.......  ..................  .........................
Coal..................................  .........          PDM  .........................  11, 12, 13, 14, 25  .........................       155, 240,
                                                                                                                                            405(b), 407,
                                                                                                                                          415(b), 420(a)
                                                                                                                                             & (c), 445,
                                                                                                                                                     450
Copra.................................     UN1363          4.2  .........................              11, 12  Dry......................        130, 242
Direct reduced iron (A) with not more   .........          PDM  .........................            1, 2, 12  Hot-molded briquettes....       155, 250,
 than 5% fines.                                                                                                                                   420(b)
Direct reduced iron (B) with not more   .........          PDM  .........................            1, 2, 12  Lumps, pellets, and cold-       155, 245,
 than 5% fines.                                                                                                 molded briquettes.          405(b), 407,
                                                                                                                                             420(b), 445
Environmentally Hazardous Substances,      UN3077            9  Hazardous substances                       15  .........................        150, 270
 Solid, n.o.s..                                                  listed in 40 CFR part
                                                                 302.
Ferrophosphorous......................  .........          PDM  .........................                2, 3  Including briquettes.....    155, 415(e),
                                                                                                                                                     445

[[Page 22]]


Ferrosilicon with 30-90% silicon......     UN1408     4.3, 6.1  .........................                2, 3  .........................       135, 255,
                                                                                                                                            405(b), 407,
                                                                                                                                           415(a) & (e),
                                                                                                                                             420(b), 445
Ferrosilicon with 25%-30% silicon or    .........          PDM  .........................  ..................  .........................       155, 255,
 90% or more silicon.                                                                                                                       405(b), 407,
                                                                                                                                          415 (a) & (e),
                                                                                                                                             420(b), 445
Ferrous Sulfate.......................  .........  ...........  See Environmentally        ..................  .........................
                                                                 Hazardous Substances,
                                                                 Solid, n.o.s.
Ferrous Metal Borings, Shavings,           UN2793          4.2  .........................              11, 12  .........................        130, 260
 Turnings, or Cuttings.
Fish Meal Stabilized or Fish Scrap,        UN2216            9  .........................              11, 12  Ground and pelletized            150, 265
 Stabilized.                                                                                                    (mixture), anti-oxidant
                                                                                                                treated.
Fluorospar............................  .........          PDM  .........................               8, 24  .........................    155, 440(a),
                                                                                                                                                     450
Garbage Tankage.......................  .........  ...........  See Tankage..............  ..................  .........................
Iron Oxide, Spent or Iron Sponge,          UN1376          4.2  .........................       3, 11, 12, 14  .........................       130, 275,
 Spent.                                                                                                                                    415(c), (d) &
                                                                                                                                                (f), 445
Iron Swarf............................  .........  ...........  See Ferrous Metal          ..................  .........................
                                                                 Borings, Shavings,
                                                                 Turnings, or Cuttings.
Lead Nitrate..........................     UN1469     5.1, 6.1  .........................        4, 7, 22, 26  .........................        140, 270
Lignite...............................  .........  ...........  See Brown Coal Briquettes  ..................  .........................
Lime, Unslaked........................  .........          PDM  .........................                   1  .........................        155, 230
Linted Cotton Seed containing not more  .........          PDM  .........................              11, 12  .........................             155
 than 9% moisture and not more than
 20.5% oil.
Magnesia, Unslaked....................  .........          PDM  .........................                   1  Lightburned magnesia,            155, 280
                                                                                                                calcined magnesite.
Magnesium Nitrate.....................     UN1474          5.1  .........................                   4  .........................             140
Metal Sulfide Concentrates............  .........          PDM  .........................   8, 11, 12, 22, 24  Solid, finely divided       155, 285, 450
                                                                                                                sulfide concentrates of
                                                                                                                copper, iron, lead,
                                                                                                                nickel, zinc, or other
                                                                                                                metalliferous ores.
Peat Moss with moisture content of      .........          PDM  .........................   8, 12, 13, 14, 24  Fine to coarse fibrous      155, 290, 450
 more than 65% by weight.                                                                                       structure.
Pencil Pitch..........................  .........  ...........  See Pitch Prill..........  ..................  .........................

[[Page 23]]


Petroleum Coke calcined or uncalcined   .........          PDM  .........................                  11  .........................        155, 295
 at 55 [deg]C (131 [deg]F).
Pitch Prill...........................  .........          PDM  .........................              14, 16  .........................             155
Potassium Nitrate.....................     UN1486          5.1  .........................                   4  .........................             140
Prilled Coal Tar......................  .........  ...........  See Pitch Prill..........  ..................  .........................
Pyrites, Calcined.....................  .........          PDM  .........................            8, 9, 24  Fly ash..................   155, 225, 450
Pyritic ash...........................  .........  ...........  See Pyrites, Calcined....  ..................  .........................
Quicklime.............................  .........  ...........  See Lime, Unslaked.......  ..................  .........................
Radioactive Material..................     UN2912            7  .........................                  17  Low specific activity....        145, 300
Radioactive Material..................     UN2913            7  .........................                  17  Surface contaminated             145, 300
                                                                                                                objects.
Rough Ammonia Tankage.................  .........  ...........  See Tankage..............  ..................  .........................
Saltpeter.............................  .........  ...........  See Potassium Nitrate....  ..................  .........................
Sawdust...............................  .........          PDM  .........................              12, 18  .........................    155, 405(a),
                                                                                                                                                     407
Seed Cake.............................     UN1386          4.2  .........................              12, 19  Mechanically expelled or         130, 310
                                                                                                                solvent extractions.
Seed Cake.............................     UN2217          4.2  .........................              12, 19  Solvent extractions......        130, 310
Silicomanganese with silicon content    .........          PDM  .........................            2, 3, 12  With known hazard profile    155, 405(b),
 of 25% or more.                                                                                                or known to evolve gases.  407, 415(a) &
                                                                                                                                            (d), 420(b),
                                                                                                                                                     445
Sodium Nitrate........................     UN1498          5.1  .........................                   4  .........................             140
Sodium Nitrate and Potassium Nitrate       UN1499          5.1  .........................                   4  Mixtures prepared as                  140
 Mixture.                                                                                                       fertilizer.
Steel Swarf...........................  .........  ...........  See Ferrous Metal          ..................  .........................
                                                                 Borings, Shavings,
                                                                 Turnings, or Cuttings.
Sulfur................................     UN1350          4.1  .........................              14, 20  Lumps or coarse-grained         125, 315,
                                                                                                                powder.                     405(a), 407,
                                                                                                                                                     435
Sulfur................................     NA1350            9  .........................              14, 20  Not subject to the              125, 315,
                                                                                                                requirements of this        405(a), 407,
                                                                                                                subchapter when formed               435
                                                                                                                into specific shapes
                                                                                                                (i.e., prills, granules,
                                                                                                                pellets, pastiles, or
                                                                                                                flakes).
Tankage...............................  .........          PDM  .........................                  11  .........................        155, 320
Tankage Fertilizer....................  .........  ...........  See Tankage..............  ..................  .........................
Vanadium Ore..........................  .........          PDM  .........................                  21  .........................             155
Wood chips, Wood Pellets, Wood Pulp     .........          PDM  .........................                  12  .........................        155, 325
 Pellets.
Zinc Ashes............................     UN1435          4.3  .........................            2, 3, 23  Includes zinc dross,            135, 330,
                                                                                                                residues, and skimmings.    405(b), 407,
                                                                                                                                            420(b), 435,
                                                                                                                                                     445
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 24]]



Sec. 148.11  Hazardous or potentially dangerous characteristics.

    (a) General. When Column 5 refers to a code for a hazardous material
or PDM, the meaning of that code is set forth in this section.
    (b) Table of Hazardous or Potentially Dangerous Characteristics.

----------------------------------------------------------------------------------------------------------------
                  Code                              Hazardous or potentially dangerous characteristic
----------------------------------------------------------------------------------------------------------------
1......................................  Contact with water may cause heating.
2......................................  Contact with water may cause evolution of flammable gases, which may
                                          form explosive mixtures with air.
3......................................  Contact with water may cause evolution of toxic gases.
4......................................  If involved in a fire, will greatly intensify the burning of
                                          combustible materials.
5......................................  A major fire aboard a vessel carrying this material may involve a risk
                                          of explosion in the event of contamination (e.g., by a fuel oil) or
                                          strong confinement. If heated strongly will decompose, giving off
                                          toxic gases that support combustion.
6......................................  These mixtures may be subject to self-sustaining decomposition if
                                          heated. Decomposition, once initiated, may spread throughout the
                                          remainder, producing gases that are toxic.
7......................................  Toxic if swallowed and by dust inhalation.
8......................................  Harmful and irritating by dust inhalation.
9......................................  Highly corrosive to steel.
10.....................................  Powerful allergen. Toxic by ingestion. Skin contact or inhalation of
                                          dust may cause severe irritation of skin, eyes, and mucous membranes
                                          in some people.
11.....................................  May be susceptible to spontaneous heating and ignition.
12.....................................  Liable to cause oxygen depletion in the cargo space.
13.....................................  Liable to emit methane gas which can form explosive mixtures with air.
14.....................................  Dust forms explosive mixtures with air.
15.....................................  May present substantial danger to the public health or welfare or the
                                          environment when released into the environment. Skin contact and dust
                                          inhalation should be avoided.
16.....................................  Combustible. Burns with dense black smoke. Dust may cause skin and eye
                                          irritation.
17.....................................  Radiation hazard from dust inhalation and contact with mucous
                                          membranes.
18.....................................  Susceptible to fire from sparks and open flames.
19.....................................  May self-heat slowly and, if wet or containing an excessive proportion
                                          of unoxidized oil, ignite spontaneously.
20.....................................  Fire may produce irritating or poisonous gases.
21.....................................  Dust may contain toxic constituents.
22.....................................  Lead nitrate and lead sulfide are hazardous substances; see code 15 of
                                          this table and Sec. 148.270.
23.....................................  Hazardous substance when consisting of pieces having a diameter less
                                          than 100 micrometers (0.004 in.); see code 15 of this table and Sec.
                                          148.270.
24.....................................  Cargo subject to liquefaction.
25.....................................  Subject to liquefaction if average particle size of cargo is less than
                                          10 mm (.394 in.).
26.....................................  This entry is considered a Marine Pollutant in accordance with 49 CFR
                                          172.101 Appendix B.
27.....................................  This entry is considered a certain dangerous cargo in accordance with
                                          33 CFR 160.204.
----------------------------------------------------------------------------------------------------------------



Sec. 148.12  Assignment and certification.

    (a) The National Cargo Bureau is authorized to assist the Coast
Guard in administering the provisions of this part by--
    (1) Inspecting vessels for suitability for loading solid materials
in bulk;
    (2) Examining stowage of solid materials loaded in bulk on board
vessels;
    (3) Making recommendations on stowage requirements applicable to the
transportation of solid materials in bulk; and
    (4) Issuing certificates of loading that verify stowage of the solid
material in bulk meets requirements of this part.
    (b) Certificates of loading from the National Cargo Bureau are
accepted as evidence of compliance with bulk solid transport
regulations.



                        Subpart B_Special Permits



Sec. 148.15  Petition for a special permit.

    (a) Each shipper who wishes to ship a bulk solid material not listed
in Table 148.10 of this part must determine whether the material meets
the definition of any hazard class, or the definition of a PDM, as those
terms are defined in Sec. 148.3 of this part.
    (b) If the material meets any of the definitions described in
paragraph (a) of this section, the shipper then must submit a petition
in writing to the Commandant (CG-ENG-5) for authorization to ship any
hazardous material or PDM not listed in Table 148.10 of this part.
    (c) If the Commandant (CG-ENG-5) approves a petition for
authorization, the Commandant (CG-ENG-5) issues the petitioner a Coast
Guard special permit. The permit allows the material to be transported
in bulk by vessel and

[[Page 25]]

outlines requirements for this transport.
    (d) A tripartite agreement developed in conjunction with the United
States and in accordance with the IMSBC Code (incorporated by reference,
see Sec. 148.8) may be used in lieu of a special permit.



Sec. 148.20  Deadlines for submission of petition and related requests.

    (a) A petition for a special permit must be submitted at least 45
days before the requested effective date. Requests for extension or
renewal of an existing special permit must be submitted 20 days before
the date of expiration.
    (b) Requests for extension or renewal must include the information
required under Sec. 148.21(a), (f), and (g) of this part.



Sec. 148.21  Necessary information.

    Each petition for a special permit must contain at least the
following:
    (a) A description of the material, including, if a hazardous
material--
    (1) The proper shipping name from the table in 49 CFR 172.101;
    (2) The hazard class and division of the material; and
    (3) The identification number of the material.
    (b) A material safety data sheet (MSDS) for the material or--
    (1) The chemical name and any trade names or common names of the
material;
    (2) The composition of the material, including the weight percent of
each constituent;
    (3) Physical data, including color, odor, appearance, melting point,
and solubility;
    (4) Fire and explosion data, including auto-ignition temperature,
any unusual fire or explosion hazards, and any special fire fighting
procedures;
    (5) Health hazards, including any dust inhalation hazards and any
chronic health effects;
    (6) The threshold limit value (TLV) of the material or its major
constituents, if available, and any relevant toxicity data;
    (7) Reactivity data, including any hazardous decomposition products
and any incompatible materials; and
    (8) Special protection information, including ventilation
requirements and personal protection equipment required.
    (c) Other potentially dangerous characteristics of the material not
covered by paragraph (b) of this section, including--
    (1) Self-heating;
    (2) Depletion of oxygen in the cargo space;
    (3) Dust explosion; and
    (4) Liquefaction.
    (d) A detailed description of the proposed transportation operation,
including--
    (1) The type of vessel proposed for water movements;
    (2) The expected loading and discharge ports, if known;
    (3) Procedures to be used for loading and unloading the material;
    (4) Precautions to be taken when handling the material; and
    (5) The expected temperature of the material at the time it will be
loaded on the vessel.
    (e) Test results (if required under Subpart E of this part).
    (f) Previous approvals or permits.
    (g) Any relevant shipping or accident experience (or any other
relevant transportation history by any mode of transport).



Sec. 148.25  Activities covered by a special permit.

    (a) Each special permit covers any shipment of the permitted
material by the shipper and also covers for each shipment--
    (1) Each transfer operation;
    (2) Each vessel involved in the shipment; and
    (3) Each individual involved in any cargo handling operation.
    (b) Each special permit is valid for a period determined by the
Commandant (CG-ENG-5) and specified in the special permit. The period
will not exceed 4 years and is subject to suspension or revocation
before its expiration date.



Sec. 148.26  Standard conditions for special permits.

    (a) Each special permit holder must comply with all the requirements
of this part unless specifically exempted by the terms of the special
permit.

[[Page 26]]

    (b) Each special permit holder must provide a copy of the special
permit and the information required in Sec. 148.60 of this part to the
master or person in charge of each vessel carrying the material.
    (c) The master of a vessel transporting a special permit material
must ensure that a copy of the special permit is on board the vessel.
The special permit must be kept with the dangerous cargo manifest if
such a manifest is required by Sec. 148.70 of this part.
    (d) The person in charge of a barge transporting any special permit
material must ensure that a copy of the special permit is on board the
tug or towing vessel. When the barge is moored, the special permit must
be kept on the barge with the shipping papers as prescribed in Sec.
148.62 of this part.



Sec. 148.30  Records of special permits issued.

    A list of all special permits issued, and copies of each, are
available from the Commandant (CG-ENG-5).



              Subpart C_Minimum Transportation Requirements



Sec. 148.50  Cargoes subject to this subpart.

    The regulations in this subpart apply to each bulk shipment of--
    (a) A material listed in Table 148.10 of this part; and
    (b) Any solid material shipped under the terms of a Coast Guard
special permit.



Sec. 148.51  Temperature readings.

    When Subpart D of this part sets a temperature limit for loading or
transporting a material, apply the following rules:
    (a) The temperature of the material must be measured 20 to 36
centimeters (8 to 14 inches) below the surface at 3 meter (10 foot)
intervals over the length and width of the stockpile or cargo hold.
    (b) The temperature must be measured at every spot in the stockpile
or cargo hold that shows evidence of heating.
    (c) Before loading or transporting the material, all temperatures
measured must be below the temperature limit set in Subpart D of this
part.



Sec. 148.55  International shipments.

    (a) Importer's responsibility. Each person importing any bulk solid
material requiring special handling into the United States must provide
the shipper and the forwarding agent at the place of entry into the
United States with timely and complete information as to the
requirements of this part that will apply to the shipment of the
material within the United States.
    (b) IMSBC Code. Notwithstanding the provisions of this part, a bulk
solid material that is classed, described, stowed, and segregated in
accordance with the IMSBC Code (incorporated by reference, see Sec.
148.8), and otherwise conforms to the requirements of this section, may
be offered and accepted for transportation and transported within the
United States. The following conditions and limitations apply:
    (1) A bulk solid material that is listed in Table 148.10 of this
part, but is not subject to the requirements of the IMSBC Code, may not
be transported under the provisions of this section and is subject to
the requirements of this part. Examples of such materials include
environmentally hazardous substances, solid, n.o.s.
    (2) Zinc Ashes must conform to the requirements found in Sec.
148.330 of this part.
    (3) Exemptions granted by other competent authorities in accordance
with the IMSBC Code must be approved by the Commandant (CG-ENG-5) in
accordance with Sec. 148.5 of this part.
    (4) Tripartite agreements granted by other competent authorities in
accordance with the IMSBC Code must be authorized for use in the United
States by the Commandant (CG-ENG-5).



Sec. 148.60  Shipping papers.

    The shipper of a material listed in Table 148.10 of this part must
provide the master or his representative with appropriate information on
the cargo in the form of a shipping paper, in English, prior to loading.
Information on the shipping paper must include the following:

[[Page 27]]

    (a) The appropriate BCSN. Secondary names may be used in addition to
the BCSN;
    (b) The identification number, if applicable;
    (c) The hazard class of the material as listed in Table 148.10 of
this part or on the Special Permit for the material;
    (d) The total quantity of the material to be transported;
    (e) The stowage factor;
    (f) The need for trimming and the trimming procedures, as necessary;
    (g) The likelihood of shifting, including angle of repose, if
applicable;
    (h) A certificate on the moisture content of the cargo and its
transportable moisture limit for cargoes that are subject to
liquefaction;
    (i) Likelihood of formation of a wet base;
    (j) Toxic or flammable gases that may be generated by the cargo, if
applicable;
    (k) Flammability, toxicity, corrosiveness, and propensity to oxygen
depletion of the cargo, if applicable;
    (l) Self-heating properties of the cargo, if applicable;
    (m) Properties on emission of flammable gases in contact with water,
if applicable;
    (n) Radioactive properties, if applicable;
    (o) The name and address of the U.S. shipper (consignor) or, if the
shipment originates in a foreign country, the U.S. consignee.
    (p) A certification, signed by the shipper, that bears the following
statement: ``This is to certify that the above named material is
properly named, prepared, and otherwise in proper condition for bulk
shipment by vessel in accordance with the applicable regulations of the
U.S. Coast Guard.''



Sec. 148.61  Emergency response information.

    The shipper of a material listed in Table 148.10 of this part must
provide the master or his representative with appropriate emergency
response information. This information may be included on the shipping
papers or in a separate document such as a material safety data sheet
(MSDS). The information must include preliminary first aid measures and
emergency procedures to be carried out in the event of an incident or
fire involving the cargo.



Sec. 148.62  Location of shipping papers and emergency response
information.

    (a) The shipping paper and emergency response information required
by Sec. Sec. 148.60 and 148.61 of this part must be kept on board the
vessel along with the dangerous cargo manifest required by Sec. 148.70
of this part. When the shipment is by unmanned barge the shipping papers
and emergency response information must be kept on the tug or towing
vessel. When an unmanned barge is moored, the shipping paper and
emergency response information must be on board the barge in a readily
retrievable location.
    (b) Any written certification or statement from the shipper to the
master of a vessel or to the person in charge of a barge must be on, or
attached to, the shipping paper. See Subparts E and F of this part for
required certifications.



Sec. 148.70  Dangerous cargo manifest; general.

    (a) Except as provided in paragraph (b) of this section and in Sec.
148.72 of this part, each vessel transporting materials listed in Table
148.10 of this part must have a dangerous cargo manifest on board.
    (b) This document must be kept in a designated holder on or near the
vessel's bridge. When required for an unmanned barge, the document must
be on board the tug or towing vessel.



Sec. 148.71  Information included in the dangerous cargo manifest.

    The dangerous cargo manifest must include the following:
    (a) The name and official number of the vessel. If the vessel has no
official number, the international radio call sign must be substituted;
    (b) The nationality of the vessel;
    (c) The name of the material as listed in Table 148.10 of this part;
    (d) The hold or cargo compartment in which the material is being
transported;

[[Page 28]]

    (e) The quantity of material loaded in each hold or cargo
compartment; and
    (f) The signature of the master acknowledging that the manifest is
correct, and the date of the signature.



Sec. 148.72  Dangerous cargo manifest; exceptions.

    (a) No dangerous cargo manifest is required for--
    (1) Shipments by unmanned barge, except on an international voyage;
and
    (2) Shipments of materials designated as potentially dangerous
materials in Table 148.10 of this part.
    (b) When a dangerous cargo manifest is required for an unmanned
barge on an international voyage, Sec. 148.71(d) of this part does not
apply, unless the barge has more than one cargo compartment.



Sec. 148.80  Supervision of cargo transfer.

    The master must ensure that cargo transfer operations are supervised
by a responsible person as defined in Sec. 148.3 of this part.



Sec. 148.85  Required equipment for confined spaces.

    When transporting a material that is listed in Table 148.10 of this
part, each vessel, other than an unmanned barge, must have on board the
following:
    (a) Equipment capable of measuring atmospheric oxygen. At least two
members of the crew must be knowledgeable in the use of the equipment,
which must be maintained in a condition ready for use and calibrated
according to the manufacturer's instructions.
    (b) At least two self-contained, pressure-demand-type, air breathing
apparatus approved by the Mine Safety and Health Administration (MSHA)
or the National Institute for Occupational Safety and Health (NIOSH),
each having at least a 30-minute air supply. Each foreign flag vessel
must have on board at least two such apparatus that are approved by the
flag state administration. The master must ensure that the breathing
apparatus is used only by persons trained in its use.



Sec. 148.86  Confined space entry.

    (a) Except in an emergency, no person may enter a confined space
unless that space has been tested to ensure there is sufficient oxygen
to support life. If the oxygen content is below 19.5 percent, the space
must be ventilated and retested before entry.
    (b) In an emergency, a confined space may be entered by a trained
person wearing self-contained breathing apparatus, suitable protective
clothing as necessary, and a wire rope safety line tended by a trained
person outside the hold or in an adjacent space. Emergency entry into a
confined space must be supervised by a responsible person as defined in
Sec. 148.3 of this part.



Sec. 148.90  Preparations before loading.

    Before loading any material listed in Table 148.10 of this part, in
bulk on board a vessel, the following conditions must be met:
    (a) If a hold previously has contained any material required under
Subpart D of this part to be segregated from the material to be loaded,
the hold must be thoroughly cleaned of all residue of the previous
cargoes.
    (b) If the material to be loaded is Class 4.1, 4.2, or 5.1, then all
combustible materials must be removed from the hold. Examples of some
combustible materials are residue of previous cargoes, loose debris, and
dunnage. Permanent wooden battens or sheathing may remain in the hold
unless forbidden by Subpart E of this part.
    (c) If the material to be loaded is classified as Class 4.3, or is
subject to liquefaction, the hold and associated bilge must be as dry as
practicable.



Sec. 148.100  Log book entries.

    During the transport in bulk of a material listed in Table 148.10 of
this part, the master must keep a record of each temperature measurement
and each test for toxic or flammable gases required by this part. The
date and time of each measurement and test must be recorded in the
vessel's log.



Sec. 148.110  Procedures followed after unloading.

    (a) After a material covered by this part has been unloaded from a
vessel, each hold or cargo compartment must

[[Page 29]]

be thoroughly cleaned of all residue of such material unless the hold is
to be reloaded with that same cargo.
    (b) When on U.S. territorial seas or inland waters, cargo associated
wastes, cargo residue, and deck sweepings must be retained on the vessel
and disposed of in accordance with 33 CFR parts 151.51 through 151.77.



Sec. 148.115  Report of incidents.

    (a) When a fire or other hazardous condition occurs on a vessel
transporting a material covered by this part, the master must notify the
nearest Captain of the Port as soon as possible and comply with any
instructions given.
    (b) Any incident or casualty occurring while transporting a material
covered by this part must also be reported as required under 49 CFR
171.15, if applicable. A copy of the written report required under 49
CFR 171.16 must also be sent to the Commandant (CG-ENG-5), Attn:
Hazardous Materials Division, U.S. Coast Guard Stop 7509, 2703 Martin
Luther King Jr. Avenue SE., Washington, DC 20593-7509, at the earliest
practicable moment.
    (c) Any release to the environment of a hazardous substance in a
quantity equal to or in excess of its reportable quantity (RQ) must be
reported immediately to the National Response Center at 800-424-8802
(toll free) or 202-267-2675; or online at www.nrc.uscg.mil..

[75 FR 64591, Oct. 19, 2010, as amended by USCG-2013-0671, 78 FR 60154,
Sept. 30, 2013]



                    Subpart D_Stowage and Segregation



Sec. 148.120  Stowage and segregation requirements.

    (a) Each material listed in Table 148.10 of this part must be
segregated from incompatible materials in accordance with--
    (1) The requirements of Tables 148.120A and 148.120B of this section
that pertain to the primary or subsidiary hazard class to which the
materials belong. Whenever a subsidiary hazard may exist, the most
stringent segregation requirement applies; and
    (2) Any specific requirements in Subpart D of this part.
    (b) Materials that are required to be separated during stowage must
not be handled at the same time. Any residue from a material must be
removed before a material required to be separated from it is loaded.
    (c) Definitions and application of segregation terms:
    (1) ``Separated from'' means located in different cargo compartments
or holds when stowed under deck. If the intervening deck is resistant to
fire and liquid, a vertical separation, i.e., in different cargo
compartments, is acceptable as equivalent to this segregation.
    (2) ``Separated by a complete cargo compartment or hold from'' means
either a vertical or horizontal separation, for example, by a complete
cargo compartment or hold. If the intervening decks are not resistant to
fire and liquid, only horizontal separation is acceptable.
    (3) ``Separated longitudinally by an intervening complete cargo
compartment or hold from'' means that vertical separation alone does not
meet this requirement.

                                           Table 148.120A--Segregation Between Incompatible Bulk Solid Cargoes
--------------------------------------------------------------------------------------------------------------------------------------------------------
                     Bulk solid materials                         Class      4.1       4.2       4.3       5.1       6.1        7         8       9/PDM
--------------------------------------------------------------------------------------------------------------------------------------------------------
Flammable solid...............................................      4.1         X   ........  ........  ........  ........  ........  ........
Spontaneously combustible material............................      4.2         2         X   ........  ........  ........  ........  ........
Dangerous when wet material...................................      4.3         3         3         X   ........  ........  ........  ........
Oxidizer......................................................      5.1         3         3         3         X   ........  ........  ........
Poisonous material............................................      6.1         X         X         X         2         X   ........  ........
Radioactive material..........................................        7         2         2         2         2         2         X   ........
Corrosive material............................................        8         2         2         2         2         X         X         X
Miscellaneous hazardous material and potential dangerous          9/PDM         X         X         X         X         X         2         X         X
 material.....................................................
--------------------------------------------------------------------------------------------------------------------------------------------------------
Numbers and symbols indicate the following terms as defined in Sec. 148.3 of this part:
2--``Separated from''.

[[Page 30]]


3--``Separated by a complete hold or compartment from''.
X--No segregation required, except as specified in an applicable section of this subpart or Subpart E of this part.


                                Table 148.120B--Segregation Between Bulk Solid Cargoes and Incompatible Packaged Cargoes
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                   Bulk solid material
                  Packaged hazardous material                  -----------------------------------------------------------------------------------------
                                                                  Class      4.1       4.2       4.3       5.1       6.1        7         8       9/PDM
--------------------------------------------------------------------------------------------------------------------------------------------------------
Explosives....................................................      1.1         4         4         4         4         2         2         4         X
                                                                    1.2
                                                                    1.5
Explosives....................................................      1.3         3         3         4         4         2         2         2         X
                                                                    1.6
Explosives....................................................      1.4         2         2         2         2         X         2         2         X
Flammable gas.................................................      2.1         2         2         1         2         X         2         2         X
Non-flammable compressed gas..................................      2.2         2         2         X         X         X         2         1         X
Poisonous gas.................................................      2.3         2         2         X         X         X         2         1         X
Flammable liquid..............................................        3         2         2         2         2         X         2         1         X
Flammable solid...............................................      4.1         X         1         X         1         X         2         1         X
Spontaneously combustible material............................      4.2         1         X         1         2         1         2         1         X
Dangerous when wet material...................................      4.3         X         1         X         2         X         2         1         X
Oxidizer......................................................      5.1         1         2         2         X         1         1         2         X
Organic peroxide..............................................      5.2         2         2         2         2         1         2         2         X
Poisonous material............................................      6.1         X         1         X         1         X         X         X         X
Infectious substance..........................................      6.2         3         3         2         3         1         3         3         X
Radioactive material..........................................        7         2         2         2         1         X         X         2         X
Corrosive material............................................        8         1         1         1         2         X         2         X         X
Miscellaneous hazardous material..............................        9         X         X         X         X         X         X         X         X
--------------------------------------------------------------------------------------------------------------------------------------------------------
Numbers and symbols indicate the following terms as defined in Sec. 148.3 of this part:
1--``Away from''.
2--``Separated from''.
3--``Separated by a complete hold or compartment from''.
4--``Separated longitudinally by an intervening complete compartment or hold from''.
X--No segregation required, except as specified in an applicable section of this subpart or Subpart E of this part.



Sec. 148.125  Stowage and segregation for materials of Class 4.1.

    (a) Class 4.1 materials listed in Table 148.10 of this part must--
    (1) Be kept as cool and dry as practical before loading;
    (2) Not be loaded or transferred between vessels during periods of
rain or snow;
    (3) Be stowed separated from foodstuffs; and
    (4) Be stowed clear of sources of heat and ignition and protected
from sparks and open flame.
    (b) Bulkheads between a hold containing a Class 4.1 material and
incompatible materials must have cable and conduit penetrations sealed
against the passage of gas and vapor.



Sec. 148.130  Stowage and segregation for materials of Class 4.2.

    (a) Class 4.2 materials listed in Table 148.10 of this part must--
    (1) Be kept as cool and dry as practical before loading;
    (2) Not be loaded or transferred between vessels during periods of
rain or snow;
    (3) Be stowed clear of sources of heat and ignition and protected
from sparks and open flame; and
    (4) Except for copra and seed cake, be stowed separate from
foodstuffs.
    (b) The bulkhead between a hold containing a Class 4.2 material and
a hold containing a material not permitted to mix with Class 4.2
materials must have cable and conduit penetrations sealed against the
passage of gas and vapor.



Sec. 148.135  Stowage and segregation for materials of Class 4.3.

    (a) Class 4.3 materials listed in Table 148.10 of this part which,
in contact with water, emit flammable gases, must--
    (1) Be kept as cool and dry as practical before loading;
    (2) Not be loaded or transferred between vessels during periods of
rain or snow;
    (3) Be stowed separate from foodstuffs and all Class 8 liquids; and
    (4) Be stowed in a mechanically ventilated hold. Exhaust gases must
not penetrate into accommodation, work or control spaces. Unmanned
barges

[[Page 31]]

that have adequate natural ventilation need not have mechanical
ventilation.
    (b) The bulkhead between a hold containing a Class 4.3 material and
incompatible materials must have cable and conduit penetrations sealed
against the passage of gas and vapor.



Sec. 148.140  Stowage and segregation for materials of Class 5.1.

    (a) Class 5.1 materials listed in Table 148.10 of this part must--
    (1) Be kept as cool and dry as practical before loading;
    (2) Be stowed away from all sources of heat or ignition; and
    (3) Be stowed separate from foodstuffs and all readily combustible
materials.
    (b) Special care must be taken to ensure that holds containing Class
5.1 materials are clean and, whenever practical, only noncombustible
securing and protecting materials are used.
    (c) Class 5.1 materials must be prevented from entering bilges or
other cargo holds.



Sec. 148.145  Stowage and segregation for materials of Class 7.

    (a) Class 7 material listed in Table 148.10 of this part must be
stowed--
    (1) Separate from foodstuffs; and
    (2) In a hold or barge closed or covered to prevent dispersal of the
material during transportation.
    (b) [Reserved]



Sec. 148.150  Stowage and segregation for materials of Class 9.

    (a) A bulk solid cargo of Class 9 material (miscellaneous hazardous
material) listed in Table 148.10 of this part must be stowed and
segregated as required by this section.
    (b) Ammonium nitrate fertilizer of Class 9 must be segregated as
required for Class 5.1 materials in Sec. Sec. 148.120 and 148.140 of
this part and must be stowed--
    (1) Separated by a complete hold or compartment from readily
combustible materials, chlorates, hypochlorites, nitrites,
permanganates, and fibrous materials (e.g., cotton, jute, sisal, etc.);
    (2) Clear of all sources of heat, including insulated piping; and
    (3) Out of direct contact with metal engine-room boundaries.
    (c) Castor beans must be stowed separate from foodstuffs and Class
5.1 materials.
    (d) Fish meal must be stowed and segregated as required for Class
4.2 materials in Sec. Sec. 148.120 and 148.130 of this part. In
addition, its temperature at loading must not exceed 35 [deg]C (95
[deg]F), or 5 [deg]C (9 [deg]F) above ambient temperature, whichever is
higher.
    (e) Sulfur must be stowed and segregated as required under
Sec. Sec. 148.120 and 148.125 of this part for a material of Class 4.1.



Sec. 148.155  Stowage and segregation for potentially dangerous
materials.

    (a) A PDM must be stowed and segregated according to the
requirements of this section and Table 148.155 of this section.
    (b) When transporting coal--
    (1) Coal must be stowed separate from materials of Class/division
1.4 and Classes 2, 3, 4, and 5 in packaged form; and separated from bulk
solid materials of Classes 4 and 5.1;
    (2) No material of Class 5.1, in either packaged or bulk solid form,
may be stowed above or below a cargo of coal; and
    (3) Coal must be separated longitudinally by an intervening complete
cargo compartment or hold from materials of Class 1 other than Class/
division 1.4.
    (c) When transporting direct reduced iron (DRI)--
    (1) DRI lumps, pellets, or cold-molded briquettes, and DRI hot-
molded briquettes, must be separated from materials of Class/division
1.4, Classes 2, 3, 4, 5, Class 8 acids in packaged form, and bulk solid
materials of Classes 4 and 5.1; and
    (2) No material of Class 1, other than Class/division 1.4, may be
transported on the same vessel with DRI.
    (d) Petroleum coke, calcined or uncalcined, must be--
    (1) Separated longitudinally by an intervening complete cargo
compartment or hold from materials of Class/divisions 1.1 and 1.5; and
    (2) Separated by a complete cargo compartment or hold from all
hazardous materials and other potentially dangerous materials in
packaged and bulk solid form.

[[Page 32]]



                                 Table 148.155--Stowage and Segregation Requirements for Potentially Dangerous Material
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                   Load only
                                     Segregate as   ``Separate     under dry                  Mechanical      ``Separate from''
   Potentially dangerous material      for class      from''        weather      Keep dry     ventilation      material listed       Special provisions
                                      listed \1\    foodstuffs    conditions                   required
--------------------------------------------------------------------------------------------------------------------------------------------------------
Aluminum Smelting By-products or             4.3             X             X             X             X   Class 8 liquids
 Aluminum Re-melting Byproducts.
Brown Coal Briquettes..............  ............  ............  ............  ............  ............  See paragraph (b) of    See paragraph (b) of
                                                                                                            this section.           this section.
Charcoal...........................          4.1   ............  ............            X   ............  Oily materials
Coal...............................  ............  ............  ............  ............  ............  See paragraph (b) of    See paragraph (b) of
                                                                                                            this section.           this section.
Direct reduced iron (A)............  ............  ............  ............  ............  ............  See paragraph (c) of    See paragraph (c) of
                                                                                                            this section.           this section.
Direct reduced iron (B)............  ............  ............  ............  ............  ............  See paragraph (c) of    See paragraph (c) of
                                                                                                            this section.           this section.
Ferrophosphorus....................          4.3             X             X             X             X   Class 8 liquids
Ferrolilicon.......................          4.3             X             X             X             X   Class 8 liquids
Fluorospar.........................  ............            X   ............  ............  ............  Class 8 liquids
Lime, Unslaked.....................  ............  ............  ............            X   ............  All packaged and bulk
                                                                                                            solid hazardous
                                                                                                            materials.
Linted Cotton Seed.................  ............  ............  ............            X   ............
Magnesia, Unslaked.................  ............  ............  ............  ............  ............  All packaged and bulk
                                                                                                            solid hazardous
                                                                                                            materials.
Metal Sulfide Concentrates.........          4.2             X   ............  ............  ............  Class 8 liquids
Petroleum Coke.....................  ............            X   ............  ............  ............                          See section
                                                                                                                                    148.155(d).
Pitch Prill........................          4.1   ............  ............  ............  ............
Pyrites, Calcined..................  ............            X             X             X             X
Sawdust............................          4.1   ............  ............            X   ............  All Class 5.1 and 8
                                                                                                            liquids.
Silicomanganese....................          4.3             X             X             X             X   Class 8 liquids
Tankage............................          4.2             X             X   ............  ............
Vanadium...........................          6.1             X   ............  ............  ............
Wood chips.........................          4.1   ............  ............  ............  ............
Wood pellets.......................          4.1   ............  ............  ............  ............
Wood pulp pellets..................          4.1   ............  ............  ............  ............
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ See Tables 148.120A and B.



          Subpart E_Special Requirements for Certain Materials



Sec. 148.200  Purpose.

    This subpart prescribes special requirements for specific materials.
These requirements are in addition to the minimum transportation
requirements in Subpart C of this part that are applicable to all
materials listed in Table 148.10 of this part.

[[Page 33]]



Sec. 148.205  Ammonium nitrate and ammonium nitrate fertilizers.

    (a) This section applies to the stowage and transportation in bulk
of ammonium nitrate and the following fertilizers composed of uniform,
non-segregating mixtures containing ammonium nitrate:
    (1) Ammonium nitrate containing added organic matter that is
chemically inert towards the ammonium nitrate; containing at least 90
percent ammonium nitrate and a maximum of 0.2 percent of combustible
material (including organic material calculated as carbon); or
containing less than 90 percent but more than 70 percent of ammonium
nitrate and a maximum of 0.4 percent combustible material;
    (2) Ammonium nitrate with calcium carbonate and/or dolomite,
containing more than 80 percent but less than 90 percent of ammonium
nitrate and a maximum of 0.4 percent of total combustible material;
    (3) Ammonium nitrate with ammonium sulfate containing more than 45
percent but a maximum of 70 percent of ammonium nitrate and containing a
maximum of 0.4 percent of combustible material; and
    (4) Nitrogen phosphate or nitrogen/potash type fertilizers or
complete nitrogen/phosphate/potash type fertilizers containing more than
70 percent but less than 90 percent of ammonium nitrate and a maximum of
0.4 percent of combustible material.
    (b) No material covered by this section may be transported in bulk
unless it demonstrates resistance to detonation when tested by one of
the following methods:
    (1) Appendix 2, Section 5, of the IMSBC Code (incorporated by
reference, see Sec. 148.8);
    (2) Test series 1 and 2 of the Class 1 (explosive) in the UN Manual
of Tests and Criteria, Part I (incorporated by reference, see Sec.
148.8); or
    (3) An equivalent test satisfactory to the Administration of the
country of shipment.
    (c) Before loading a material covered by this section--
    (1) The shipper must give the master of the vessel written
certification that the material has met the test requirements of
paragraph (b) of this section;
    (2) The cargo hold must be inspected for cleanliness and free from
readily combustible materials;
    (3) Each cargo hatch must be weathertight as defined in Sec. 42.13-
10 of this chapter;
    (4) The temperature of the material must be less than 55 [deg]C (131
[deg]F); and
    (5) Each fuel tank under a cargo hold where the material is stowed
must be pressure tested before loading to ensure that there is no
leakage of manholes or piping systems leading through the cargo hold.
    (d) Bunkering or transferring of fuel to or from the vessel may not
be performed during cargo loading and unloading operations involving a
material covered by this section.
    (e) When a material covered by this section is transported on a
cargo vessel--
    (1) No other material may be stowed in the same hold with that
material;
    (2) In addition to the segregation requirements in Sec. 148.140 of
this part, the material must be separated by a complete cargo
compartment or hold from readily combustible materials, chlorates,
chlorides, chlorites, hypochlorites, nitrites, permanganates, and
fibrous materials; and
    (3) The bulkhead between a cargo hold containing a material covered
by this section and the engine room must be insulated to ``A-60'' class
division or an equivalent arrangement to the satisfaction of the
cognizant Coast Guard Captain of the Port or the Administration of the
country of shipment.



Sec. 148.220  Ammonium nitrate-phosphate fertilizers.

    (a) This section applies to the stowage and transportation of
uniform, nonsegregating mixtures of nitrogen/phosphate or nitrogen/
potash type fertilizers, or complete fertilizers of nitrogen/phosphate/
potash type containing a maximum of 70 percent of ammonium nitrate and
containing a maximum of 0.4 percent total added combustible material or
containing a maximum of 45 percent ammonium nitrate with unrestricted
combustible material.
    (b) A fertilizer mixture described in paragraph (a) of this section
is exempt if--

[[Page 34]]

    (1) When tested in accordance with the trough test prescribed in
Appendix 2, Section 4, of the IMSBC Code or in the UN Manual of Tests
and Criteria, Part III, Subsection 38.2 (incorporated by reference, see
Sec. 148.8), it is found to be free from the risk of self-sustaining
decomposition.
    (2) [Reserved]
    (c) No fertilizer covered by this section may be transported in bulk
if, when tested in accordance with the trough test prescribed in
Appendix 2, Section 4, of the IMSBC Code or in the UN Manual of Tests
and Criteria, Part III, Subsection 38.2 (incorporated by reference, see
Sec. 148.8), it has a self-sustaining decomposition rate that is
greater than 0.25 meters per hour, or is liable to self-heat sufficient
to initiate decomposition.
    (d) Fertilizers covered by this section must be stowed away from all
sources of heat, and out of direct contact with a metal engine
compartment boundary.
    (e) Bunkering or transferring of fuel may not be performed during
loading and unloading of fertilizer covered by this section.
    (f) Fertilizer covered by this section must be segregated as
prescribed in Sec. Sec. 148.140 and 148.220(d) of this part.



Sec. 148.225  Calcined pyrites (pyritic ash, fly ash).

    (a) This part does not apply to the shipment of calcined pyrites
that are the residual ash of oil or coal fired power stations.
    (b) This section applies to the stowage and transportation of
calcined pyrites that are the residual product of sulfuric acid
production or elemental metal recovery operations.
    (c) Before loading calcined pyrites covered by this section--
    (1) The cargo space must be as clean and dry as practical;
    (2) The calcined pyrites must be dry; and
    (3) Precautions must be taken to prevent the penetration of calcined
pyrites into other cargo spaces, bilges, wells, and ceiling boards.
    (d) After calcined pyrites covered by this section have been
unloaded from a cargo space, the cargo space must be thoroughly cleaned.
Cargo residues and sweepings must be disposed of as prescribed in 33 CFR
parts 151.55 through 151.77.



Sec. 148.227  Calcium nitrate fertilizers.

    This part does not apply to commercial grades of calcium nitrate
fertilizers consisting mainly of a double salt (calcium nitrate and
ammonium nitrate) and containing a maximum of 15.5 percent nitrogen and
at least 12 percent of water.



Sec. 148.230  Calcium oxide (lime, unslaked).

    (a) When transported by barge, unslaked lime (calcium oxide) must be
carried in an unmanned, all steel, double-hulled barge equipped with
weathertight hatches or covers. The barge must not carry any other cargo
while unslaked lime is on board.
    (b) The shipping paper requirements in Sec. 148.60 of this part and
the dangerous cargo manifest requirements in Sec. 148.70 of this part
do not apply to the transportation of unslaked lime under paragraph (a)
of this section.



Sec. 148.235  Castor beans.

    (a) This part applies only to the stowage and transportation of
whole castor beans. Castor meal, castor pomace, and castor flakes may
not be shipped in bulk.
    (b) Persons handling castor beans must wear dust masks and goggles.
    (c) Care must be taken to prevent castor bean dust from entering
accommodation, control, or service spaces during cargo transfer
operations.



Sec. 148.240  Coal.

    (a) The electrical equipment in cargo holds carrying coal must meet
the requirements of Subpart 111.105 of this chapter or an equivalent
standard approved by the administration of the vessel's flag state.
    (b) Before coal is loaded in a cargo hold, the bilges must be as
clean and dry as practical. The hold must also be free of any readily
combustible material, including the residue of previous cargoes if other
than coal.
    (c) The master of each vessel carrying coal must ensure that--
    (1) All openings to the cargo hold, except for unloading gates on
self-unloading vessels, are sealed before loading

[[Page 35]]

the coal and, unless the coal is as described in paragraph (f) of this
section, the hatches must also be sealed after loading;
    (2) As far as practical, gases emitted by the coal do not accumulate
in enclosed working spaces such as storerooms, shops, or passageways,
and tunnel spaces on self-unloading vessels, and that such spaces are
adequately ventilated;
    (3) The vessel has adequate ventilation as required by paragraph (f)
of this section; and
    (4) If the temperature of the coal is to be monitored under
paragraph (e)(2)(i) of this section, the vessel has instruments that are
capable of measuring the temperature of the cargo in the range 0[deg]-
100 [deg]C (32 [deg]-212 [deg]F) without entry into the cargo hold.
    (d) A cargo hold containing coal must not be ventilated unless the
conditions of paragraph (f) of this section are met, or unless methane
is detected under paragraph (h) of this section.
    (e) If coal waiting to be loaded has shown a tendency to self-heat,
has been handled so that it may likely self-heat, or has been observed
to be heating, the master is responsible for monitoring the temperature
of the coal at several intervals during these times:
    (1) Before loading; and
    (2) During the voyage, by--
    (i) Measuring the temperature of the coal;
    (ii) Measuring the emission of carbon monoxide; or
    (iii) Both.
    (f) If coal waiting to be loaded has a potential to emit dangerous
amounts of methane, for example it is freshly mined, or has a history of
emitting dangerous amounts of methane, then:
    (1) Surface ventilation, either natural or from fixed or portable
nonsparking fans, must be provided; and
    (2) The atmosphere above the coal must be monitored for the presence
of methane as prescribed in paragraph (h) of this section. The results
of this monitoring must be recorded at least twice in every 24-hour
period, unless the conditions of paragraph (m) of this section are met.
    (g) Electrical equipment and cables in a hold containing a coal
described in paragraph (f) of this section must be either suitable for
use in an explosive gas atmosphere or de-energized at a point outside
the hold. Electrical equipment and cables necessary for continuous safe
operations, such as lighting fixtures, must be suitable for use in an
explosive gas atmosphere. The master of the vessel must ensure that the
affected equipment and cables remain de-energized as long as this coal
remains in the hold.
    (h) For all coal loaded on a vessel, other than an unmanned barge,
the atmosphere above the coal must be routinely tested for the presence
of methane, carbon monoxide, and oxygen, following the procedures in the
Appendices to the schedules for Coal and Brown Coal Briquettes as
contained in the IMSBC Code (incorporated by reference, see Sec.
148.8). This testing must be performed in such a way that the cargo
hatches are not opened and entry into the hold is not necessary.
    (i) When carrying a coal described in paragraph (e) of this section,
the atmosphere above the coal must be monitored for the presence of
carbon monoxide as prescribed in paragraph (h) of this section. The
results of this monitoring must be recorded at least twice in every 24-
hour period, unless the conditions of paragraph (m) of this section are
met. If the level of carbon monoxide is increasing rapidly or reaches 20
percent of the lower flammability limit (LFL), the frequency of
monitoring must be increased.
    (j) When a cargo of coal has a potential to self-heat or has been
observed to be heating, the hatches should be closed and sealed and all
surface ventilation halted except as necessary to remove any methane
that may have accumulated.
    (k) If the level of carbon monoxide monitored under paragraph (i) of
this section continues to increase rapidly or the temperature of coal
carried on board a vessel exceeds 55 [deg]C (131 [deg]F) and is
increasing rapidly, the master must notify the nearest Coast Guard
Captain of the Port of--
    (1) The name, nationality, and position of the vessel;
    (2) The most recent temperature, if measured, and levels of carbon
monoxide and methane;

[[Page 36]]

    (3) The port where the coal was loaded and the destination of the
coal;
    (4) The last port of call of the vessel and its next port of call;
and
    (5) What action has been taken.
    (l) If the level of methane as monitored under paragraph (h) of this
section reaches 20 percent of the LFL or is increasing rapidly,
ventilation of the cargo hold, under paragraph (f) of this section, must
be initiated. If this ventilation is provided by opening the cargo
hatches, care must be taken to avoid generating sparks.
    (m) The frequency of monitoring required by paragraph (f) of this
section may be reduced at the discretion of the master provided that--
    (1) The level of gas measured is less than 20 percent of the LFL;
    (2) The level of gas measured has remained steady or decreased over
three consecutive readings, or has increased by less than 5 percent over
four consecutive readings spanning at least 48 hours; and
    (3) Monitoring continues at intervals sufficient to determine that
the level of gas remains within the parameters of paragraphs (m)(1) and
(m)(2) of this section.



Sec. 148.242  Copra.

    Copra must have surface ventilation. It must not be stowed against
heated surfaces including fuel oil tanks which may require heating.



Sec. 148.245  Direct reduced iron (DRI); lumps, pellets, and cold-molded
briquettes.

    (a) Before loading DRI lumps, pellets, or cold-molded briquettes--
    (1) The master must have a written certification from a competent
person appointed by the shipper and recognized by the Commandant (CG-
ENG-5) stating that the DRI, at the time of loading, is suitable for
shipment;
    (2) The DRI must be aged for at least 3 days, or be treated with an
air passivation technique or some other equivalent method that reduces
its reactivity to at least the same level as the aged DRI; and
    (3) Each hold and bilge must be as clean and dry as practical. Other
than double bottom tanks, adjacent ballast tanks must be kept empty when
possible. All wooden fixtures, such as battens, must be removed from the
hold.
    (b) Each boundary of a hold where DRI lumps, pellets, or cold-molded
briquettes are to be carried must be resistant to fire and passage of
water.
    (c) DRI lumps, pellets, or cold-molded briquettes that are wet, or
that are known to have been wetted, may not be accepted for transport.
The moisture content of the DRI must not exceed 0.3 percent prior to
loading.
    (d) DRI lumps, pellets and cold-molded briquettes must be protected
at all times from contact with water, and must not be loaded or
transferred from one vessel to another during periods of rain or snow.
    (e) DRI lumps, pellets, or cold-molded briquettes may not be loaded
if their temperature is greater than 65 [deg]C (150 [deg]F).
    (f) The shipper of DRI lumps, pellets, or cold-molded briquettes in
bulk must ensure that an inert atmosphere of less than 5 percent oxygen
and 1 percent hydrogen, by volume, is maintained throughout the voyage
in any hold containing these materials.
    (g) When DRI lumps, pellets, or cold-molded briquettes are loaded,
precautions must be taken to avoid the concentration of fines (pieces
less than 6.35mm in size) in any one location in the cargo hold.
    (h) Radar and RDF scanners must be protected against the dust
generated during cargo transfer operations of DRI lumps, pellets, or
cold-molded briquettes.



Sec. 148.250  Direct reduced iron (DRI); hot-molded briquettes.

    (a) Before loading DRI hot-molded briquettes--
    (1) The master must have a written certification from a competent
person appointed by the shipper and recognized by the Commandant (CG-
ENG-5) that at the time of loading the DRI hot-molded briquettes are
suitable for shipment; and
    (2) Each hold and bilge must be as clean and dry as practical.
Except double bottom tanks, adjacent ballast tanks must be kept empty
where possible. All wooden fixtures, such as battens, must be removed.

[[Page 37]]

    (b) All boundaries of a hold must be resistant to fire and passage
of water to carry DRI hot-molded briquettes.
    (c) DRI hot-molded briquettes must be protected at all times from
contact with water. They must not be loaded or transferred from one
vessel to another during periods of rain or snow.
    (d) DRI hot-molded briquettes may not be loaded if their temperature
is greater than 65 [deg]C (150 [deg]F).
    (e) When loading DRI hot-molded briquettes, precautions must be
taken to avoid the concentration of fines (pieces less than 6.35mm in
size) in any one location in the cargo hold.
    (f) Adequate surface ventilation must be provided when carrying or
loading DRI hot-molded briquettes.
    (g) When DRI hot-molded briquettes are carried by unmanned barge--
    (1) The barge must be fitted with vents adequate to provide natural
ventilation; and
    (2) The cargo hatches must be closed at all times after loading the
DRI hot-molded briquettes.
    (h) Radar and RDF scanners must be adequately protected against dust
generated during cargo transfer operations of DRI hot-molded briquettes.
    (i) During final discharge only, a fine spray of water may be used
to control dust from DRI hot-molded briquettes.



Sec. 148.255  Ferrosilicon, aluminum ferrosilicon, and aluminum silicon
containing more than 30% but less than 90% silicon.

    (a) This section applies to the stowage and transportation of
ferrosilicon, aluminum ferrosilicon, and aluminum silicon containing
more than 30 percent but less than 90 percent silicon.
    (b) The shipper of material described in paragraph (a) of this
section must give the master a written certification stating that after
manufacture the material was stored under cover, but exposed to the
weather, in the particle size in which it is to be shipped, for at least
three days before shipment.
    (c) Material described in paragraph (a) of this section must be
protected at all times from contact with water, and must not be loaded
or unloaded during periods of rain or snow.
    (d) Except as provided in paragraph (e) of this section, each hold
containing material described in paragraph (a) of this section must be
mechanically ventilated by at least two separate fans. The total
ventilation must be at least five air changes per hour, based on the
empty hold. Ventilation must not allow escaping gas to reach
accommodation or work spaces, on or under deck.
    (e) An unmanned barge which is provided with natural ventilation
need not comply with paragraph (d) of this section.
    (f) Each space adjacent to a hold containing material described in
paragraph (a) of this section must be well ventilated with mechanical
fans. No person may enter that space unless it has been tested to ensure
that it is free from phosphine and arsine gases.
    (g) Scuttles and windows in accommodation and work spaces adjacent
to holds containing material described in paragraph (a) of this section
must be kept closed while this material is being loaded and unloaded.
    (h) Any bulkhead between a hold containing material described in
paragraph (a) of this section and an accommodation or work space must be
gas tight and adequately protected against damage from any unloading
equipment.
    (i) When a hold containing material described in paragraph (a) of
this section is equipped with atmosphere sampling type smoke detectors
with lines that terminate in accommodation or work spaces, those lines
must be blanked off gas-tight.
    (j) If a hold containing material described in paragraph (a) of this
section must be entered at any time, the hatches must be open for two
hours before entry to dissipate any accumulated gases. The atmosphere in
the hold must be tested to ensure that there is no phosphine or arsine
gas present.
    (k) After unloading material described in paragraph (a) of this
section, each cargo hold must be thoroughly cleaned and tested to ensure
that no phosphine or arsine gas remains.



Sec. 148.260  Ferrous metal.

    (a) This part does not apply to the stowage and transportation in
bulk of stainless steel borings, shavings, turnings, or cuttings; nor
does this part apply to an unmanned barge on a

[[Page 38]]

voyage entirely on the navigable waters of United States.
    (b) Ferrous metal may not be stowed or transported in bulk unless
the following conditions are met:
    (1) All wooden sweat battens, dunnage, and debris must be removed
from the hold before the ferrous metal is loaded;
    (2) If weather is inclement during loading, hatches must be covered
or otherwise protected to keep the material dry;
    (3) During loading and transporting, the bilge of each hold in which
ferrous metal is stowed or will be stowed must be kept as dry as
practical;
    (4) During loading, the ferrous metal must be compacted in the hold
as frequently as practicable with a bulldozer or other means that
provides equivalent surface compaction;
    (5) No other material may be loaded in a hold containing ferrous
metal unless--
    (i) The material to be loaded in the same hold with the ferrous
metal is not a material listed in Table 148.10 of this part or a readily
combustible material;
    (ii) The loading of the ferrous metal is completed first; and
    (iii) The temperature of the ferrous metal in the hold is below 55
[deg]C (131 [deg]F) or has not increased in eight hours before the
loading of the other material; and
    (6) During loading, the temperature of the ferrous metal in the pile
being loaded must be below 55 [deg]C (131 [deg]F).
    (c) The master of a vessel that is loading or transporting a ferrous
metal must ensure that the temperature of the ferrous metal is taken--
    (1) Before loading;
    (2) During loading, in each hold and pile being loaded, at least
once every twenty-four hours and, if the temperature is rising, as often
as is necessary to ensure that the requirements of this section are met;
and
    (3) After loading, in each hold, at least once every 24 hours.
    (d) During loading, if the temperature of the ferrous metal in a
hold is 93 [deg]C (200 [deg]F) or higher, the master must notify the
Coast Guard Captain of the Port and suspend loading until the Captain of
the Port is satisfied that the temperature of the ferrous metal is 88
[deg]C (190 [deg]F) or less.
    (e) After loading ferrous metal--
    (1) If the temperature of the ferrous metal in each hold is 65
[deg]C (150 [deg]F) or above, the master must notify the Coast Guard
Captain of the Port, and the vessel must remain in the port area until
the Captain of the Port is satisfied that the temperature of ferrous
metal has shown a downward trend below 65 [deg]C (150 [deg]F) for at
least eight hours after completion of loading of the hold; or
    (2) If the temperature of the ferrous metal in each hold is less
than 88 [deg]C (190 [deg]F) and has shown a downward trend for at least
eight hours after the completion of loading, the master must notify the
Coast Guard Captain of the Port, and the vessel must remain in the port
area until the Captain of the Port confirms that the vessel is sailing
directly to another port, no further than 12 hours sailing time, for the
purpose of loading more ferrous metal in bulk or to completely off-load
the ferrous metal.
    (f) Except for shipments of ferrous metal in bulk which leave the
port of loading under the conditions specified in paragraph (e)(2) of
this section, if after the vessel leaves the port, the temperature of
the ferrous metal in the hold rises above 65 [deg]C (150 [deg]F), the
master must notify the nearest Coast Guard Captain of the Port as soon
as possible of--
    (1) The name, nationality, and position of the vessel;
    (2) The most recent temperature taken;
    (3) The length of time that the temperature has been above 65 [deg]C
(150 [deg]F) and the rate of rise, if any;
    (4) The port where the ferrous metal was loaded and the destination
of the ferrous metal;
    (5) The last port of call of the vessel and its next port of call;
    (6) What action has been taken; and
    (7) Whether any other cargo is endangered.



Sec. 148.265  Fish meal or fish scrap.

    (a) This part does not apply to fish meal or fish scrap that
contains less than 5 percent moisture by weight.

[[Page 39]]

    (b) Fish meal or fish scrap may contain a maximum of 12 percent
moisture by weight and a maximum of 15 percent fat by weight.
    (c) At the time of production, fish meal or fish scrap must be
treated with an effective antioxidant (at least 400 mg/kg (ppm)
ethoxyquin, at least 1000 mg/kg (ppm) butylated hydroxytoluene, or at
least 1000 mg/kg (ppm) of tocopherol-based liquid antioxidant).
    (d) Shipment of the fish meal or fish scrap must take place a
maximum of 12 months after the treatment prescribed in paragraph (c) of
this section.
    (e) Fish meal or fish scrap must contain at least 100 mg/kg (ppm) of
ethoxyquin or butylated hydroxytoluene or at least 250 mg/kg (ppm) of
tocopherol-based antioxidant at the time of shipment.
    (f) At the time of loading, the temperature of the fish meal or fish
scrap to be loaded may not exceed 35 [deg]C (95 [deg]F), or 5 [deg]C (9
[deg]F) above the ambient temperature, whichever is higher.
    (g) For each shipment of fish meal or fish scrap, the shipper must
give the master a written certification stating--
    (1) The total weight of the shipment;
    (2) The moisture content of the material;
    (3) The fat content of the material;
    (4) The type of antioxidant and its concentration in the fish meal
or fish scrap at the time of shipment;
    (5) The date of production of the material; and
    (6) The temperature of the material at the time of shipment.
    (h) During a voyage, temperature readings must be taken of fish meal
or fish scrap three times a day and recorded. If the temperature of the
material exceeds 55 [deg]C (131 [deg]F) and continues to increase,
ventilation to the hold must be restricted. This paragraph does not
apply to shipments by unmanned barge.



Sec. 148.270  Hazardous substances.

    (a) Each bulk shipment of a hazardous substance must--
    (1) Be assigned a shipping name in accordance with 49 CFR
172.203(c); and
    (2) If the hazardous substance is also listed as a hazardous solid
waste in 40 CFR part 261, follow the applicable requirements of 40 CFR
chapter I, subchapter I.
    (b) Each release of a quantity of a designated substance equal to or
greater than the reportable quantity, as set out in Table 1 to Appendix
A of 49 CFR 171.101, when discharged into or upon the navigable waters
of the United States, adjoining shorelines, into or upon the contiguous
zone, or beyond the contiguous zone, must be reported as required in
subpart B of 33 CFR part 153.
    (c) A hazardous substance must be stowed in a hold or barge that is
closed or covered and prevents dispersal of the material during
transportation.
    (d) During cargo transfer operations, a spill or release of a
hazardous substance must be minimized to the greatest extent possible.
Each release must be reported as required in paragraph (b) of this
section.
    (e) After a hazardous substance is unloaded, the hold in which it
was carried must be cleaned thoroughly. The residue of the substance
must be disposed of pursuant to 33 CFR 151.55 through 151.77 and the
applicable regulations of 40 CFR subchapter I.



Sec. 148.275  Iron oxide, spent; iron sponge, spent.

    (a) Before spent iron oxide or spent iron sponge is loaded in a
closed hold, the shipper must give the master a written certification
that the material has been cooled and weathered for at least eight
weeks.
    (b) Both spent iron oxide and spent iron sponge may be transported
on open hold all-steel barges after exposure to air for a period of at
least ten days.



Sec. 148.280  Magnesia, unslaked (lightburned magnesia, calcined
magnesite, caustic calcined magnesite).

    (a) This part does not apply to the transport of natural magnesite,
magnesium carbonate, or magnesia clinkers.
    (b) When transported by barge, unslaked magnesia must be carried in
an unmanned, all-steel, double-hulled barge equipped with weathertight
hatches or covers. The barge may not carry any other cargo while
unslaked magnesia is on board.

[[Page 40]]

    (c) The shipping paper requirements in Sec. 148.60 of this part and
the dangerous cargo manifest requirements in Sec. 148.70 of this part
do not apply to unslaked magnesia transported under the requirements of
paragraph (b) of this section.



Sec. 148.285  Metal sulfide concentrates.

    (a) When information given by the shipper under Sec. 148.60 of this
part indicates that the metal sulfide concentrate may generate toxic or
flammable gases, the appropriate gas detection equipment from Sec. Sec.
148.415 and 148.420 of this part must be on board the vessel.
    (b) No cargo hold containing a metal sulfide concentrate may be
ventilated.
    (c) No person may enter a hold containing a metal sulfide
concentrate unless--
    (1) The atmosphere in the cargo hold has been tested and contains
sufficient oxygen to support life and, where the shipper indicates that
toxic gas(es) may be generated, the atmosphere in the cargo hold has
been tested for the toxic gas(es) and the concentration of the gas(es)
is found to be less than the TLV; or
    (2) An emergency situation exists and the person entering the cargo
hold is wearing the appropriate self-contained breathing apparatus.



Sec. 148.290  Peat moss.

    (a) Before shipment, peat moss must be stockpiled under cover to
allow drainage and reduce its moisture content.
    (b) The cargo must be ventilated so that escaping gases cannot reach
living quarters on or above deck.
    (c) Persons handling or coming into contact with peat moss must wear
gloves, a dust mask, and goggles.



Sec. 148.295  Petroleum coke, calcined or uncalcined, at 55 [deg]C (131
[deg]F) or above.

    (a) This part does not apply to shipments of petroleum coke,
calcined or uncalcined, on any vessel when the temperature of the
material is less than 55 [deg]C (131 [deg]F).
    (b) Petroleum coke, calcined or uncalcined, or a mixture of calcined
and uncalcined petroleum coke may not be loaded when its temperature
exceeds 107 [deg]C (225 [deg]F).
    (c) No other hazardous materials may be stowed in any hold adjacent
to a hold containing petroleum coke except as provided in paragraph (d)
of this section.
    (d) Before petroleum coke at 55 [deg]C (131 [deg]F) or above may be
loaded into a hold over a tank containing fuel or material having a
flashpoint of less than 93 [deg]C (200 [deg]F), a 0.6 to 1.0 meter (2 to
3 foot) layer of the petroleum coke at a temperature not greater than 43
[deg]C (110 [deg]F) must first be loaded.
    (e) Petroleum coke must be loaded as follows:
    (1) For a shipment in a hold over a fuel tank, the loading of a
cooler layer of petroleum coke in the hold as required by paragraph (d)
of this section must be completed before loading the petroleum coke at
55 [deg]C (131 [deg]F) or above in any hold of the vessel;
    (2) Upon completion of the loading described in paragraph (e)(1) of
this section, a 0.6 to 1.0 meter (2 to 3 foot) layer of the petroleum
coke at 55 [deg]C (131 [deg]F) or above must first be loaded into each
hold, including those holds already containing a cooler layer of the
petroleum coke; and
    (3) Upon completion of the loading described in paragraph (e)(2) of
this section, normal loading of the petroleum coke may be completed.
    (f) The master of the vessel must warn members of a crew that
petroleum coke is hot, and that injury due to burns is possible.
    (g) During the voyage, the temperature of the petroleum coke must be
monitored often enough to detect spontaneous heating.



Sec. 148.300  Radioactive materials.

    (a) Radioactive materials that may be stowed or transported in bulk
are limited to those radioactive materials defined in 49 CFR 173.403 as
Low Specific Activity Material, LSA-1, or Surface Contaminated Object,
SCO-1.
    (b) Skin contact, inhalation or ingestion of dusts generated by
Class 7 material listed in Table 148.10 of this part must be minimized.
    (c) Each hold used for the transportation of Class 7 material
(radioactive) listed in Table 148.10 of this part must

[[Page 41]]

be surveyed after the completion of off-loading by a qualified person
using appropriate radiation detection instruments. Such holds must not
be used for the transportation of any other material until the non-fixed
contamination on any surface, when averaged over an area of 300 cm\2\,
does not exceed the following levels:
    (1) 4.0 Bq/cm\2\ (10-4 uCi/cm\2\;) for beta and gamma
emitters and low toxicity alpha emitters, natural uranium, natural
thorium, uranium-235, uranium-238, thorium-232, thorium-228 and thorium-
230 when contained in ores or physical or chemical concentrates, and
radionuclides with a half-life of less than 10 days; and
    (2) 0.4 Bq/cm\2\ (10-5 uCi/cm\2\) for all other alpha
emitters.



Sec. 148.310  Seed cake.

    (a) This part does not apply to solvent-extracted rape seed meal,
pellets, soya bean meal, cotton seed meal, or sunflower seed meal that--
    (1) Contains a maximum of 4 percent vegetable oil and a maximum of
15 percent vegetable oil and moisture combined; and
    (2) As far as practical, is free from flammable solvent.
    (b) This part does not apply to mechanically expelled citrus pulp
pellets containing not more than 2.5 percent oil and a maximum of 14
percent oil and moisture combined.
    (c) Before loading, the seed cake must be aged per the instructions
of the shipper.
    (d) Before loading, the shipper must give the master or person in
charge of a barge a certificate from a competent testing laboratory
stating the oil and moisture content of the seed cake.
    (e) The seed cake must be kept as dry as practical at all times.
    (f) If the seed cake is solvent-extracted, it must be--
    (1) As free as practical from flammable solvent; and
    (2) Stowed in a mechanically ventilated hold.
    (g) For a voyage with a planned duration greater than 5 days, the
vessel must be equipped with facilities for introducing carbon dioxide
or another inert gas into the hold.
    (h) Temperature readings of the seed cake must be taken at least
once in every 24-hour period. If the temperature exceeds 55 [deg]C (131
[deg]F) and continues to increase, ventilation to the cargo hold must be
discontinued. If heating continues after ventilation has been
discontinued, carbon dioxide or the inert gas required under paragraph
(g) of this section must be introduced into the hold. If the seed cake
is solvent-extracted, the use of inert gas must not be introduced until
fire is apparent, to avoid the possibility of igniting the solvent
vapors by the generation of static electricity.
    (i) Seed cake must be carried under the terms of a Special Permit
issued by the Commandant (CG-ENG-5) per subpart B of this part if--
    (1) The oil was mechanically expelled; and
    (2) It contains more than 10 percent vegetable oil or more than 20
percent vegetable oil and moisture combined.



Sec. 148.315  Sulfur.

    (a) This part applies to lump or coarse grain powder sulfur only.
Fine-grained powder (``flowers of sulfur'') may not be transported in
bulk.
    (b) After the loading or unloading of lump or coarse grain powder
sulfur has been completed, sulfur dust must be removed from the vessel's
decks, bulkheads, and overheads. Cargo residues and deck sweepings must
be disposed of pursuant to 33 CFR 151.55 through 151.77.
    (c) A cargo space that contains sulfur or the residue of a sulfur
cargo must be adequately ventilated, preferably by mechanical means.
Each ventilator intake must be fitted with a spark-arresting screen.



Sec. 148.320  Tankage; garbage tankage; rough ammonia tankage; or
tankage fertilizer.

    (a) This part applies to rough ammonia tankage in bulk that contains
7 percent or more moisture by weight, and garbage tankage and tankage
fertilizer that contains 8 percent or more moisture by weight.
    (b) Tankage to which this part applies may not be loaded in bulk if
its temperature exceeds 38 [deg]C (100 [deg]F).

[[Page 42]]

    (c) During the voyage, the temperature of the tankage must be
monitored often enough to detect spontaneous heating.



Sec. 148.325  Wood chips; wood pellets; wood pulp pellets.

    (a) This part applies to wood chips and wood pulp pellets in bulk
that may oxidize, leading to depletion of oxygen and an increase in
carbon dioxide in the cargo hold.
    (b) No person may enter a cargo hold containing wood chips, wood
pellets, or wood pulp pellets, unless--
    (1) The atmosphere in the cargo hold has been tested and contains
enough oxygen to support life; or
    (2) The person entering the cargo hold is wearing the appropriate
self-contained breathing apparatus.



Sec. 148.330  Zinc ashes; zinc dross; zinc residues; zinc skimmings.

    (a) The shipper must inform the cognizant Coast Guard Captain of the
Port in advance of any cargo transfer operations involving zinc ashes,
zinc dross, zinc residues, or zinc skimmings (collectively, ``zinc
material'') in bulk.
    (b) Zinc material must be aged by exposure to the elements for at
least one year before shipment in bulk.
    (c) Before loading in bulk, zinc material must be stored under cover
for a period of time to ensure that it is as dry as practical. No zinc
material that is wet may be accepted for shipment.
    (d) Zinc material may not be loaded in bulk if its temperature is
greater than 11.1 [deg]C (52 [deg]F) in excess of the ambient
temperature.
    (e) Paragraphs (e)(1) through (e)(5) of this section apply only when
zinc materials are carried by a cargo vessel:
    (1) Zinc material in bulk must be stowed in a mechanically
ventilated hold that--
    (i) Is designed for at least one complete air change every 30
minutes based on the empty hold;
    (ii) Has explosion-proof motors approved for use in Class I,
Division 1, Group B atmospheres or equivalent motors approved by the
vessel's flag state administration for use in hydrogen atmospheres; and
    (iii) Has nonsparking fans.
    (2) Combustible gas detectors capable of measuring hydrogen
concentrations of 0 to 4.1 percent by volume must be permanently
installed in holds that will carry zinc material. If the concentration
of hydrogen in the space above the cargo exceeds 1 percent by volume,
the ventilation system must be run until the concentration drops below 1
percent by volume.
    (3) Thermocouples must be installed approximately 6 inches below the
surface of the zinc material or in the space immediately above the zinc
material. If an increase in temperature is detected, the mechanical
ventilation system required by paragraph (d) of this section must be
used until the temperature of the zinc material is below 55 [deg]C (131
[deg]F).
    (4) Except as provided in paragraph (e)(5) of this section, the
cargo hatches of holds containing zinc material must remain sealed to
prevent the entry of seawater.
    (5) If the concentration of hydrogen is near 4.1 percent by volume
and increasing, despite ventilation, or the temperature of the zinc
material reaches 65 [deg]C (150 [deg]F), the cargo hatches should be
opened provided that weather and sea conditions are favorable. When
hatches are opened take care to prevent sparks and minimize the entry of
water.



                Subpart F_Additional Special Requirements



Sec. 148.400  Applicability.

    Unless stated otherwise, the requirements of this subpart apply only
to the shipment or loading of materials, listed in Table 148.10 of this
part, for which Table 148.10 contains a reference to a section or
paragraph of this subpart.



Sec. 148.405  Sources of ignition.

    (a) Except in an emergency, no welding, burning, cutting, chipping,
or other operations involving the use of fire, open flame, sparks, or
arc-producing equipment, may be performed in a cargo hold containing a
Table 148.10 material or in an adjacent space.
    (b) A cargo hold or adjacent space must not have any flammable gas
concentrations over 10 percent of the LFL

[[Page 43]]

before the master may approve operations involving the use of fire, open
flame, or spark- or arc-producing equipment in that hold or adjacent
space.



Sec. 148.407  Smoking.

    When Table 148.10 of this part associates a material with a
reference to this section, and that material is being loaded or
unloaded, smoking is prohibited anywhere on the weatherdeck of the
vessel. While such a material is on board the vessel, smoking is
prohibited in spaces adjacent to the cargo hold and on the vessel's deck
in the vicinity of cargo hatches, ventilator outlets, and other accesses
to the hold containing the material. ``NO SMOKING'' signs must be
displayed in conspicuous locations in the areas where smoking is
prohibited.



Sec. 148.410  Fire hoses.

    When Table 148.10 of this part associates a material with a
reference to this section, a fire hose must be available at each hatch
through which the material is being loaded.



Sec. 148.415  Toxic gas analyzers.

    When Table 148.10 of this part associates a material with a
reference to a paragraph in this section, each vessel transporting the
material, other than an unmanned barge, must have on board a gas
analyzer appropriate for the toxic gas listed in that paragraph. At
least two members of the crew must be knowledgeable in the use of the
equipment. The equipment must be maintained in a condition ready for use
and calibrated according to the instructions of its manufacturer. The
atmosphere in the cargo hold and adjacent spaces must be tested before a
person is allowed to enter these spaces. If toxic gases are detected,
the space must be ventilated and retested before entry. The toxic gases
for which the requirements of this section must be met are:
    (a) Arsine;
    (b) Carbon monoxide;
    (c) Hydrogen cyanide;
    (d) Hydrogen sulfide;
    (e) Phosphine; and
    (f) Sulfur dioxide.



Sec. 148.420  Flammable gas analyzers.

    When Table 148.10 of this part associates a material with a
reference to a paragraph in this section, each vessel transporting the
material, other than an unmanned barge, must have on board a gas
analyzer appropriate for the flammable gas listed in that paragraph. At
least two members of the crew must be knowledgeable in the use of the
equipment. The equipment must be maintained in a condition ready for
use, capable of measuring 0 to 100 percent LFL for the gas indicated,
and calibrated in accordance with the instructions of its manufacturer.
The atmosphere in the cargo hold must be tested before any person is
allowed to enter. If flammable gases are detected, the space must be
ventilated and retested before entry. The flammable gases for which the
requirements of this section must be met are:
    (a) Carbon monoxide;
    (b) Hydrogen; and
    (c) Methane.



Sec. 148.435  Electrical circuits in cargo holds.

    During transport of a material that Table 148.10 of this part
associates with a reference to this section, each electrical circuit
terminating in a cargo hold containing the material must be electrically
disconnected from the power source at a point outside of the cargo hold.
The point of disconnection must be marked to prevent the circuit from
being reenergized while the material is on board.



Sec. 148.445  Adjacent spaces.

    When transporting a material that Table 148.10 of this part
associates with a reference to this section, the following requirements
must be met:
    (a) Each space adjacent to a cargo hold must be ventilated by
natural ventilation or by ventilation equipment safe for use in an
explosive gas atmosphere.
    (b) Each space adjacent to a cargo hold containing the material must
be regularly monitored for the presence of the flammable gas indicated
by reference to Sec. 148.420 of this part. If the level of flammable
gas in any space reaches 30 percent of the LFL, all electrical equipment
that is not certified

[[Page 44]]

safe for use in an explosive gas atmosphere must be de-energized at a
location outside of that space. This location must be labeled to
prohibit reenergizing until the atmosphere in the space is tested and
found to be less than 30 percent of the LFL.
    (c) Each person who enters any space adjacent to a cargo hold or
compartment containing the material must wear a self-contained breathing
apparatus unless--
    (1) The space has been tested, or is routinely monitored, for the
appropriate flammable gas and oxygen;
    (2) The level of flammable gas is less than 10 percent of the LFL;
and
    (3) The level of toxic gas, if required to be tested, is less than
the TLV.
    (d) No person may enter an adjacent space if the level of flammable
gas is greater than 30 percent of the LFL. If emergency entry is
necessary, each person who enters the space must wear a self-contained
breathing apparatus and caution must be exercised to ensure that no
sparks are produced.



Sec. 148.450  Cargoes subject to liquefaction.

    (a) This section applies only to cargoes identified in Table 148.10
of this part with a reference to this section and cargoes identified in
the IMSBC Code (incorporated by reference, see Sec. 148.8) as cargoes
that may liquefy.
    (b) This section does not apply to--
    (1) Shipments by unmanned barge; or
    (2) Cargoes of coal that have an average particle size of 10mm (.394
in.) or greater.
    (c) Definitions as used in this section--
    (1) Cargo subject to liquefaction means a material that is subject
to moisture migration and subsequent liquefaction if shipped with
moisture content in excess of the transportable moisture limit.
    (2) Moisture migration is the movement of moisture by settling and
consolidation of a material, which may result in the development of a
flow state in the material.
    (3) Transportable moisture limit or TML of a cargo that may liquefy
is the maximum moisture content that is considered safe for carriage on
vessels.
    (d) Except on a vessel that is specially constructed or specially
fitted for the purpose of carrying such cargoes (see also section 7 of
the IMSBC Code, incorporated by reference, see Sec. 148.8), a cargo
subject to liquefaction may not be transported by vessel if its moisture
content exceeds its TML.
    (e) The shipper of a cargo subject to liquefaction must give the
master the material's moisture content and TML.
    (f) The master of a vessel shipping a cargo subject to liquefaction
must ensure that--
    (1) A cargo containing a liquid is not stowed in the same cargo
space with a cargo subject to liquefaction; and
    (2) Precautions are taken to prevent the entry of liquids into a
cargo space containing a cargo subject to liquefaction.
    (g) The moisture content and TML of a material may be determined by
the tests described in Appendix 2, Section 1, of the IMSBC Code
(incorporated by reference, see Sec. 148.8).

                           PART 149 [RESERVED]

[[Page 45]]



               SUBCHAPTER O_CERTAIN BULK DANGEROUS CARGOES





PART 150_COMPATIBILITY OF CARGOES--Table of Contents



Sec.
150.105 OMB control numbers assigned pursuant to the Paperwork Reduction
          Act.
150.110 Applicability.
150.115 Definitions.
150.120 Definition of incompatible cargoes.
150.130 Loading a cargo on vessels carrying cargoes with which it is
          incompatible.
150.140 Cargoes not listed in Table I or II.
150.150 Exceptions to the compatibility chart.
150.160 Carrying a cargo as an exception to the compatibility chart.
150.170 Right of appeal.

Figure I to Part 150--Compatibility Chart
Table I to Part 150--Alphabetical List of Cargoes
Table II to Part 150--Grouping of Cargoes
Appendix I to Part 150--Exceptions to the Chart
Appendix II to Part 150--Explanation of Figure 1
Appendix III to Part 150--Testing Procedures for Determining Exceptions
          to the Chart
Appendix IV to Part 150--Data Sheet

    Authority: 46 U.S.C. 3306, 3703; Department of Homeland Security
Delegation No. 0170.1. Section 150.105 issued under 44 U.S.C. 3507;
Department of Homeland Security Delegation No. 0170.1.

    Source: CGD 75-59, 45 FR 70263, Oct. 23, 1980, unless otherwise
noted.

    Editorial Note: Nomenclature changes to part 150 appear by USCG-
2012-0832, 77 FR 59783, Oct. 1, 2012.



Sec. 150.105  OMB control numbers assigned pursuant to the Paperwork
Reduction Act.

    (a) Purpose. This section collects and displays the control numbers
assigned to information collection and recordkeeping requirements in
this subchapter by the Office of Management and Budget (OMB) pursuant to
the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast
Guard intends that this section comply with the requirements of 44
U.S.C. 3507(f) which requires that agencies display a current control
number assigned by the Director of the OMB for each approved agency
information collection requirement.
    (b) Display.

------------------------------------------------------------------------
                                                          Current OMB
 46 CFR part or section where identified or described     control No.
------------------------------------------------------------------------
Sec. 150.01-15.....................................          1625-0007
Sec. 153.5.........................................          1625-0007
Sec. 153.905.......................................          1625-0094
Sec. 153.910.......................................          1625-0094
Sec. 153.968.......................................          1625-0094
Part 154.............................................          1625-0029
Sec. 154.12........................................          1625-0007
------------------------------------------------------------------------


[49 FR 38121, Sept. 27, 1984, as amended by CGD 77-069, 52 FR 31626,
Aug. 21, 1987; USCG-2004-18884, 69 FR 58349, Sept. 30, 2004]



Sec. 150.110  Applicability.

    This subpart prescribes rules for identifying incompatible hazardous
materials and rules for carrying these materials in bulk as cargo in
permanently attached tanks or in tanks that are loaded or discharged
while aboard the vessel. The rules apply to all vessels that carry
liquid dangerous cargoes in bulk that are subject to 46 U.S.C. Chapter
37.

[CGD 95-028, 62 FR 51209, Sept. 30, 1997]



Sec. 150.115  Definitions.

    As used in this subpart: Hazardous material means:
    (a) A flammable liquid as defined in Sec. 30.10-22 or a combustible
liquid as defined in Sec. 30.10-15 of this chapter;
    (b) A material listed in Table 151.05, Table 1 of part 153, or Table
4 of part 154 of this chapter; or
    (c) A liquid, liquefied gas, or compressed gas listed in 49 CFR
172.101.
    Person in charge means the master of a self-propelled vessel, or the
person in charge of a barge.



Sec. 150.120  Definition of incompatible cargoes.

    Except as described in Sec. 150.150, a cargo of hazardous material
is incompatible with another cargo listed in Table I if the chemical
groups of the two cargoes have an ``X'' where their columns intersect in
Figure 1 and are not shown as exceptions in Appendix I. (See also Sec.
150.140.)

[CGD 83-047, 50 FR 33038, Aug. 16, 1985]

[[Page 46]]



Sec. 150.130  Loading a cargo on vessels carrying cargoes with which it
is incompatible.

    Except as described in Sec. 150.160, the person in charge of a
vessel shall ensure that the containment system for a cargo that is a
hazardous material meets the following requirements:
    (a) The containment system must separate the hazardous material or
its residue from any cargo in table I with which it is incompatible by
two barriers such as formed by a:
    (1) Cofferdam;
    (2) Empty tank;
    (3) Void space;
    (4) Cargo handling space;
    (5) Tank containing a compatible cargo; or
    (6) Piping tunnel.
    (b) In this subpart, isolation across a cruciform joint is
equivalent to isolation by two barriers.
    (c) The containment system for the hazardous material must not have
a piping or venting system that connects to a containment system
carrying a cargo with which the hazardous material is incompatible. Any
such piping or venting system must have been separated from the
containment system carrying the incompatible cargo by:
    (1) Removing a valve or spool piece and blanking off the exposed
pipe ends, or
    (2) Installing two spectacle flanges in series with a means of
detecting leakage into the pipe between the spectacle flanges.



Sec. 150.140  Cargoes not listed in Table I or II.

    A cargo of hazardous material not listed in Table I or II must be
handled as if incompatible with all other cargoes until the Commandant
CG-ENG-5) (Telephone 202-372-1420) assigns the hazardous material to a
compatibility group. (Table I lists cargoes alphabetically while Table
II lists cargoes by compatibility group).

[CGD 83-047, 50 FR 33038, Aug. 16, 1985, CGD 86-100, 52 FR 21037, June
4, 1987; CGD 95-072, 60 FR 50465, Sept. 29, 19955; CGD 96-041, 61 FR
50731, Sept. 27, 1996; USCG-2006-25697, 71 FR 55746, Sept. 25, 2006]



Sec. 150.150  Exceptions to the compatibility chart.

    The Commandant (CG-ENG-5) authorizes, on a case by case basis,
exceptions to the rules in this subpart under the following conditions:
    (a) When two cargoes shown to be incompatible in Figure 1 meet the
standards for a compatible pair in Appendix III, or
    (b) When two cargoes shown to be compatible in Figure 1 meet the
standards for an incompatible pair in Appendix III.
    Appendix I contains cargoes which have been found to be exceptions
to Figure 1, the Compatibility Chart.

[CGD 83-047, 50 FR 33038, Aug. 16, 1985, as amended at CGD 95-072, 60 FR
50465, Sept. 29, 1995; CGD 96-041, 61 FR 50731, Sept. 27, 1996]



Sec. 150.160  Carrying a cargo as an exception to the compatibility
chart.

    The Operator of a vessel having on board a cargo carried as an
exception under Sec. 150.150 but not listed in Appendix I, Exceptions
to the Chart, shall make sure that:
    (a) The Commandant (CG-ENG-5) has authorized by letter or message
the cargo pair as an exception to the compatibility chart; and
    (b) A copy of the letter or message is on the vessel.

[CGD 75-59, 45 FR 70263, Oct. 23, 1980, as amended by CGD 82-063b, 48 FR
4781, Feb. 3, 1983; CGD 83-047, 50 FR 33038, Aug. 16, 1985; CGD 95-072,
60 FR 50465, Sept. 29, 19955; CGD 96-041, 61 FR 50731, Sept. 27, 1996]



Sec. 150.170  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]

[[Page 47]]



             Sec. Figure 1 to Part 150--Compatibility Chart
[GRAPHIC] [TIFF OMITTED] TC02FE91.079



         Sec. Table I to Part 150--Alphabetical List of Cargoes

----------------------------------------------------------------------------------------------------------------
                                             Group    Foot-
               Chemical name                  No.      note       CHRIS Code           Related CHRIS Codes
----------------------------------------------------------------------------------------------------------------
Acetaldehyde..............................       19  .......  AAD                ...............................
Acetic acid...............................        4        2  AAC                ...............................
Acetic anhydride..........................       11  .......  ACA                ...............................
Acetochlor................................       10  .......  ACG                ...............................
Acetone...................................       18        2  ACT                ...............................
Acetone cyanohydrin.......................        0     1, 2  ACY                ...............................
Acetonitrile..............................       37  .......  ATN                ...............................
Acetophenone..............................       18  .......  ACP                ...............................
Acrolein..................................       19        2  ARL                ...............................
Acrylamide solution.......................       10  .......  AAM                ...............................
Acrylic acid..............................        4        2  ACR                ...............................
Acrylonitrile.............................       15        2  ACN                ...............................
Acrylonitrile-Styrene copolymer dispersion       20  .......  ALE                ...............................
 in Polyether polyol.
Adiponitrile..............................       37  .......  ADN                ...............................
Alachlor..................................       33  .......  ALH
Alcohols (C13+)...........................       20  .......  ALY                ...............................
    Including:                              .......  .......  .................  ...............................
    Oleyl alcohol (octadecenol)             .......  .......  .................  ...............................
    Pentadecanol                            .......  .......  .................  ...............................
    Tallow alcohol                          .......  .......  .................  ...............................
    Tetradecanol                            .......  .......  .................  ...............................
    Tridecanol                              .......  .......  .................  ...............................
Alcoholic beverages.......................       20  .......  .................  ...............................
Alcohol polyethoxylates...................       20  .......  .................  APU/APV/APW/AET

[[Page 48]]


Alcohol polyethoxylates, secondary........       20  .......  .................  AEA/AEB
Alkanes (C6-C9)...........................       31        1  ALK                ...............................
    Including:                              .......  .......  .................  ...............................
    Heptanes                                .......  .......  .................  ...............................
    Hexanes                                 .......  .......  .................  ...............................
    Nonanes                                 .......  .......  .................  ...............................
    Octanes                                 .......  .......  .................  ...............................
n-Alkanes (C10+)..........................       31        1  ALJ                ...............................
    Including:                              .......  .......  .................  ...............................
    Decanes                                 .......  .......  .................  ...............................
    Dodecanes                               .......  .......  .................  ...............................
    Heptadecanes                            .......  .......  .................  ...............................
    Tridecanes                              .......  .......  .................  ...............................
    Undecanes                               .......  .......  .................  ...............................
iso- & cyclo-Alkanes (C10-C11)............       31        1  AKI                ...............................
iso- & cyclo-Alkanes (C12+)...............       31        1  AKJ                ...............................
Alkane (C14-C17) sulfonic acid, sodium           34  .......  AKA                ...............................
 salt solution.
Alkaryl polyether (C9-C20)................       41  .......  AKP
Alkenyl(C11+)amide........................       11  .......  AKM                ...............................
Alkenyl(C16-C20)succinic anhydride........       11  .......  AAH
Alkyl acrylate-Vinyl pyridine copolymer in       32  .......  AAP                ...............................
 Toluene.
Alkyl(C8+)amine, Alkenyl (C12+) acid ester       34  .......  AAA
 mixture.
Alkylaryl phosphate mixtures (more than          34  .......  APD                ...............................
 40% Diphenyl tolyl phosphate, less than
 0.02% ortho-isomer).
Alkyl(C3-C4)benzenes......................       32  .......  AKC
    Including:                              .......  .......  .................  ...............................
    Butylbenzenes                           .......  .......  .................  ...............................
    Cumene                                  .......  .......  .................  ...............................
    Propylbenzenes                          .......  .......  .................  ...............................
Alkyl(C5-C8)benzenes......................       32  .......  AKD                ...............................
    Including:                              .......  .......  .................  ...............................
    Amylbenzenes                            .......  .......  .................  ...............................
    Heptylbenzenes                          .......  .......  .................  ...............................
    Hexylbenzenes                           .......  .......  .................  ...............................
    Octylbenzenes                           .......  .......  .................  ...............................
Alkyl(C9+)benzenes........................       32  .......  AKB                ...............................
    Including:                              .......  .......  .................  ...............................
    Decylbenzenes                           .......  .......  .................  ...............................
    Dodecylbenzenes                         .......  .......  .................  ...............................
    Nonylbenzenes                           .......  .......  .................  ...............................
    Tetradecylbenzenes                      .......  .......  .................  ...............................
    Tetrapropylbenzenes                     .......  .......  .................  ...............................
    Tridecylbenzenes                        .......  .......  .................  ...............................
    Undecylbenzenes                         .......  .......  .................  ...............................
Alkylbenzene, Alkylindane, Alkylindene           32  .......  AIH
 mixture (each C12-C17).
Alkylbenzenesulfonic acid.................        0     1, 2  .................  ABS/ABN
Alkylbenzenesulfonic acid, sodium salt           33  .......  ABT                ...............................
 solutions.
Alkyl dithiothiadiazole (C6-C24)..........       33  .......  ADT
Alkyl ester copolymer (C4-C20)............       34  .......  AES
Alkyl(C7-C9) nitrates.....................       34        2  AKN                ONE
Alkyl(C7-C11) phenol poly(4-12)ethoxylate.       40  .......  APN                ...............................
Alkyl(C8-C40) phenol sulfide..............       34  .......  AKS
Alkyl(C8-C9) phenylamine in aromatic              9  .......  ALP                ...............................
 solvents.
Alkyl(C9-C15) phenyl propoxylate..........       40  .......  .................  ...............................
Alkyl phthalates..........................       34  .......  .................  ...............................
Alkyl(C10-C20, saturated and unsaturated)        34  .......  AKL                ...............................
 phosphite.
Alkyl polyglucoside solutions.............       43  .......  .................  AGL/AGN/AGO/AGP/AGM
Alkyl sulfonic acid ester of phenol.......       34  .......  .................
Allyl alcohol.............................       15        2  ALA                ...............................
Allyl chloride............................       15        1  ALC                ...............................
Aluminium chloride, Hydrochloric acid             0        1  AHS                ...............................
 solution.
Aluminum sulfate solution.................       43        2  ASX                ALM
2-(2-Aminoethoxy)ethanol..................        8  .......  AEX                ...............................
Aminoethyldiethanolamine,                         8  .......  .................  ...............................
 Aminoethylethanolamine solution.
Aminoethylethanolamine....................        8  .......  AEE                ...............................
N-Aminoethylpiperazine....................        7  .......  AEP                ...............................
2-Amino-2-hydroxymethyl-1,3-propanediol          43  .......  AHL                ...............................
 solution.
2-Amino-2-methyl-1-propanol...............        8  .......  APQ                APR
Ammonia, anhydrous........................        6  .......  AMA                ...............................
Ammonia, aqueous (28% or less Ammonia)            6  .......  .................  AMH
 (IMO cargo name), see Ammonium hydroxide.
Ammonium bisulfite solution...............       43        2  ABX                ASU

[[Page 49]]


Ammonium hydrogen phosphate solution......        0        1  AMI                ...............................
Ammonium hydroxide (28% or less Ammonia)..        6  .......  AMH                ...............................
Ammonium lignosulfonate solution, see also       43  .......  .................  ...............................
 Lignin liquor.
Ammonium nitrate solution.................        0        1  ANR                AND/AMN
Ammonium nitrate, Urea solution                   6  .......  UAS                ...............................
 (containing Ammonia).
Ammonium nitrate, Urea solution (not             43  .......  ANU                UAT
 containing Ammonia).
Ammonium polyphosphate solution...........       43  .......  AMO                APP
Ammonium sulfate solution.................       43  .......  AME                AMS
Ammonium sulfide solution.................        5  .......  ASS                ASF
Ammonium thiocyanate, Ammonium thiosulfate        0        1  ACS                ...............................
 solution.
Ammonium thiosulfate solution.............       43  .......  ATV                ATF
Amyl acetate..............................       34  .......  AEC                IAT/AML/AAS/AYA
Amyl alcohol..............................       20  .......  AAI                IAA/AAN/ASE/APM
Amylene, see Pentene......................  .......  .......  AMZ                PTX
tert-Amyl methyl ether (see also, Methyl         41  .......  AYE                ...............................
 tert-pentyl ether).
Amyl methyl ketone, see Methyl amyl ketone  .......  .......  AMK                MAK
Aniline...................................        9  .......  ANL                ...............................
Animal and Fish oils, n.o.s...............       34  .......  AFN
    Including:                              .......  .......  .................  ...............................
    Cod liver oil                           .......  .......  .................  ...............................
    Lanolin                                 .......  .......  .................  ...............................
    Neatsfoot oil                           .......  .......  .................  ...............................
    Pilchard oil                            .......  .......  .................  ...............................
    Sperm oil                               .......  .......  .................  ...............................
Animal and Fish acid oils and distillates,       34  .......  AFA
 n.o.s..
    Including:                              .......  .......  .................  ...............................
    Animal acid oil                         .......  .......  .................  ...............................
    Fish acid oil                           .......  .......  .................  ...............................
    Lard acid oil                           .......  .......  .................  ...............................
    Mixed acid oil                          .......  .......  .................  ...............................
    Mixed general acid oil                  .......  .......  .................  ...............................
    Mixed hard acid oil                     .......  .......  .................  ...............................
    Mixed soft acid oil                     .......  .......  .................  ...............................
Anthracene oil (Coal tar fraction), see          33  .......  AHO                COR
 Coal tar.
Apple juice...............................       43  .......  .................
Aryl polyolefin (C11-C50).................       30  .......  AYF
Asphalt...................................       33  .......  ASP                ACU
Asphalt blending stocks, roofers flux.....       33  .......  ARF                ...............................
Asphalt blending stocks, straight run            33  .......  ASR                ...............................
 residue.
Asphalt emulsion (ORIMULSION).............       33  .......  ASQ                ...............................
Aviation alkylates........................       33  .......  AVA                GAV
Barium long chain alkaryl(C11-C50)               34  .......  BCA
 sulfonate.
Barium long chain alkyl(C8-C14)phenate           34  .......  BCH
 sulfide.
Behenyl alcohol...........................       20  .......  .................  ...............................
Benzene...................................       32  .......  BNZ                ...............................
Benzene hydrocarbon mixtures (having 10%         32  .......  BHB                BHA
 Benzene or more).
Benzenesulfonyl chloride..................        0     1, 2  BSC                ...............................
Benzene, Toluene, Xylene mixtures.........       32        2  BTX                ...............................
Benzene tricarboxylic acid, trioctyl ester       34  .......  .................  ...............................
Benzylacetate.............................       34  .......  BZE                ...............................
Benzyl alcohol............................       21  .......  BAL                ...............................
Benzyl chloride...........................       36  .......  BCL                ...............................
Brake fluid base mixtures.................       20  .......  BFX                ...............................
Bromochloromethane........................       36  .......  BCM                ...............................
Butadiene.................................       30  .......  BDI                ...............................
Butadiene, Butylene mixtures (cont.              30  .......  BBM                ...............................
 Acetylenes).
Butane....................................       31        1  BMX                IBT/BUT
1,4-Butanediol, see Butylene glycol.......  .......  .......  BDO                BUG
2-Butanone, see Methyl ethyl ketone.......  .......  .......  .................  ...............................
Butene, see Butylene......................  .......  .......  .................  IBL/BTN
Butene oligomer...........................       30  .......  BOL                ...............................
Butyl acetate.............................       34  .......  BAX                IBA/BCN/BTA/BYA
Butyl acrylate............................       14        1  BAR                BAI/BTC
Butyl alcohol.............................       20        2  BAY                IAL/BAN/BAS/BAT
Butylamine................................        7  .......  BTY                IAM/BAM/BTL/BUA
Butylbenzene, see Alky(C3-C4)benzenes.....       32  .......  BBE                AKC
Butyl benzyl phthalate....................       34  .......  BPH                ...............................
Butyl butyrate............................       34  .......  BBA                BUB/BIB
Butylene..................................       30  .......  BTN                IBL
Butylene glycol...........................       20        2  BUG                BDO
1,3-Butylene glycol, see Butylene glycol..  .......  .......  .................  BUG
Butylene oxide............................       16        1  BTO                ...............................
Butyl ether...............................       41  .......  BTE                ...............................

[[Page 50]]


Butyl formate.............................       34  .......  .................  BFI/BFN
Butyl heptyl ketone.......................       18  .......  BHK                ...............................
Butyl methacrylate........................       14        1  BMH                BMI/BMN
Butyl methacrylate, Decyl methacrylate,          14        1  DER                ...............................
 Cetyl-Eicosyl methacrylate mixture.
Butyl methyl ketone, see Methyl butyl       .......  .......  .................  MBK
 ketone.
Butyl phenol, Formaldehyde resin in Xylene       32  .......  .................  ...............................
n-Butyl propionate........................       34  .......  BPN
Butyl stearate............................       34  .......  .................
Butyl toluene.............................       32  .......  BUE                ...............................
Butyraldehyde.............................       19  .......  BAE                BAD/BTR
Butyric acid..............................        4  .......  BRA                IBR
gamma-Butyrolactone.......................        0     1, 2  BLA                ...............................
C9 Resinfeed (DSM)........................       32        2  CNR                ...............................
Calcium alkyl(C9)phenol sulfide,                 34  .......  CPX
 polyolefin phosphorosulfide mixture.
Calcium alkyl salicylate, see Calcium long  .......  .......  .................  CAK
 chain alkyl salicylate (C13+).
Calcium bromide solution, see Drilling      .......  .......  .................  DRB
 brines.
Calcium bromide, Zinc bromide solution,     .......  .......  .................  DZB
 see Drilling brine (containing Zinc
 salts).
Calcium carbonate slurry..................       34  .......  .................
Calcium chloride solution.................       43  .......  CCS                CLC
Calcium hydroxide slurry..................        5  .......  COH
Calcium hypochlorite solutions............        5  .......  .................  CHZ/CHU/CHY
Calcium lignosulfonate solution, see also        43  .......  .................  ...............................
 Lignin liquor.
Calcium long chain alkaryl sulfonate (C11-       34  .......  CAY
 C50).
Calcium long chain alkyl phenates.........       34  .......  .................  CAN/CAW
Calcium long chain alkyl phenate sulfide         34  .......  CPI
 (C8-C40).
Calcium long chain alkyl salicylate (C13+)       34  .......  CAK
Calcium long chain alkyl phenolic amine           9  .......  CPQ
 (C8-C40).
Calcium nitrate solution..................       34  .......  CNU                ...............................
Calcium nitrate, Magnesium nitrate,              34  .......  .................  ...............................
 Potassium chloride solution.
Calcium sulfonate, Calcium carbonate,            33  .......  .................  ...............................
 Hydrocarbon solvent mixture.
Camphor oil...............................       18  .......  CPO                ...............................
Canola oil, see rapeseed oil under ``oils,  .......  .......  .................  ...............................
 edible.''.
Caprolactam solution......................       22  .......  CLS                ...............................
Caramel solutions.........................       43  .......  .................  ...............................
Carbolic oil..............................       21  .......  CBO                ...............................
Carbon disulfide..........................       38  .......  CBB                ...............................
Carbon tetrachloride......................       36        2  CBT                ...............................
Cashew nut shell oil (untreated)..........        4  .......  OCN                ...............................
Catoxid feedstock.........................       36        2  CXF                ...............................
Caustic potash solution...................        5        2  CPS                ...............................
Caustic soda solution.....................        5        2  CSS                ...............................
Cetyl alcohol (hexadecanol), see Alcohols   .......  .......  .................  ALY
 (C13+).
Cetyl-Eicosyl methacrylate mixture........       14        1  CEM                ...............................
Cetyl-Stearyl alcohol, see Alcohols (C13+)  .......  .......  .................  ALY
Chlorinated paraffins (C10-C13)...........       36  .......  CLH                ...............................
Chlorinated paraffins (C14-C17) (with 52%        36  .......  CLJ                ...............................
 Chlorine).
Chlorine..................................        0        1  CLX                ...............................
Chloroacetic acid solution................        4  .......  CHM                CHL/MCA
Chlorobenzene.............................       36  .......  CRB                ...............................
Chlorodifluoromethane                            36  .......  MCF                ...............................
 (monochlorodifluoromethane).
Chloroform................................       36  .......  CRF                ...............................
Chlorohydrins.............................       17        1  CHD                ...............................
4-Chloro-2-methylphenoxyacetic acid,              9  .......  CDM                ...............................
 Dimethylamine salt solution.
Chloronitrobenzene........................       42  .......  CNO                ...............................
1-(4-Chlorophenyl)-4,4-dimethyl pentan-3-        18        2  CDP
 one.
Chloropropionic acid......................        4  .......  CPM                CLA/CLP
Chlorosulfonic acid.......................        0        1  CSA                ...............................
Chlorotoluene.............................       36  .......  CHI                CTM/CTO/CRN
Choline chloride solutions................       20  .......  CCO                ...............................
Citric acid...............................        4  .......  CIS                CIT
Clay slurry, see also Kaolin clay slurry..       43  .......  .................
Coal tar..................................       33  .......  COR                OCT
Coal tar distillate.......................       33  .......  CDL                ...............................
Coal tar, high temperature................       33  .......  CHH
Coal tar pitch............................       33  .......  CTP                ...............................
Cobalt naphthenate in solvent naphtha.....       34  .......  CNS
Coconut oil, fatty acid...................       34  .......  CFA                ...............................
Copper salt of long chain (C17+) alkanoic        34  .......  CUS                CFT
 acid.
Corn syrup................................       43  .......  CSY                ...............................
Cottonseed oil, fatty acid................       34  .......  CFY                ...............................
Creosote..................................       21        2  CCT                CCW/CWD

[[Page 51]]


Cresols...................................       21  .......  CRS                CRL/CSL/CSO
Cresylate spent caustic...................        5  .......  CSC                ...............................
Cresylic acid.............................       21  .......  CRY                ...............................
Cresylic acid, dephenolized...............       21  .......  CAD
Cresylic acid, sodium salt solution (IMO          5  .......  .................  CSC
 cargo name), see Cresylate spent caustic.
Cresylic acid tar.........................       21  .......  CRX                ...............................
Crotonaldehyde............................       19        2  CTA                ...............................
Cumene (isopropyl benzene), see             .......  .......  CUM                PBY
 Propylbenzene.
1,5,9-Cyclododecatriene...................       30  .......  CYT                ...............................
Cycloheptane..............................       31        1  CYE                ...............................
Cyclohexane...............................       31        1  CHX                ...............................
Cyclohexanol..............................       20  .......  CHN                ...............................
Cyclohexanone.............................       18  .......  CCH                ...............................
Cyclohexanone, Cyclohexanol mixtures......       18        2  CYX                ...............................
Cyclohexyl acetate........................       34  .......  CYC                ...............................
Cyclohexylamine...........................        7  .......  CHA                ...............................
1,3-Cyclopentadiene dimer.................       30  .......  CPD                DPT
Cyclopentadiene, Styrene, Benzene mixture.       30  .......  CSB                ...............................
Cyclopentane..............................       31        1  CYP                ...............................
Cyclopentene..............................       30  .......  CPE                ...............................
Cymene....................................       32  .......  CMP                ...............................
Decahydronaphthalene......................       33  .......  DHN                ...............................
Decaldehyde...............................       19  .......  .................  IDA/DAL
Decane, see n-Alkanes (C10+)..............  .......  .......  DCC                ALJ
Decanoic acid.............................        4  .......  DCO                ...............................
Decene....................................       30  .......  DCE                ...............................
Decyl acetate.............................       34  .......  DYA
Decyl acrylate............................       14        1  DAT                IAI/DAR
Decyl alcohol.............................       20        2  DAX                ISA/DAN
Decylbenzene, see Alkyl(C9+) benzenes.....       32  .......  DBZ                AKB
Decyloxytetrahydro-thiophene dioxide......        0     1, 2  DHT                ...............................
Degummed C9 (DOW).........................       33  .......  DGC                ...............................
Dextrose solution, see Glucose solution...       43  .......  DTS                GLU
Diacetone alcohol.........................       20        2  DAA                ...............................
Dialkyl(C10-C14) benzenes, see Alkyl(C9+)        32  .......  DAB                AKB
 benzenes.
Dialkyl(C8-C9) diphenylamines.............        9  .......  DAQ
Dialkyl(C7-C13) phthalates................       34  .......  DAH                ...............................
    Including:                              .......  .......  .................  ...............................
    Diisodecyl phthalate                    .......  .......  .................  ...............................
    Diisononyl phthalate                    .......  .......  .................  ...............................
    Dinonyl phthalate                       .......  .......  .................  ...............................
    Ditridecyl phthalate                    .......  .......  .................  ...............................
    Diundecyl phthalate                     .......  .......  .................  ...............................
Dibromomethane............................       36  .......  DBH                ...............................
Dibutylamine..............................        7  .......  DBA                ...............................
Dibutyl carbinol, see Nonyl alcohol.......  .......  .......  .................  NNS
Dibutyl hydrogen phosphonate..............       34  .......  DHD
Dibutylphenols............................       21  .......  .................  DBT/DBV, DBW
Dibutyl phthalate.........................       34  .......  DPA                ...............................
Dichlorobenzene...........................       36  .......  DBX                DBM/DBO/DBP
3,4-Dichloro-1-butene.....................       36  .......  DCD                DCB
Dichlorodifluoromethane...................       36  .......  DCF                ...............................
1,1-Dichloroethane........................       36  .......  DCH                ...............................
2,2'-Dichloroethyl ether..................       41  .......  DEE                ...............................
1,6-Dichlorohexane........................       36  .......  DHX
2,2'-Dichloroisopropyl ether..............       36  .......  DCI                ...............................
Dichloromethane...........................       36  .......  DCM                ...............................
2,4-Dichlorophenol........................       21  .......  DCP                ...............................
2,4-Dichlorophenoxyacetic acid,                  43  .......  DDE                ...............................
 Diethanolamine salt solution.
2,4-Dichlorophenoxyacetic acid,                   0     1, 2  DAD                DDA/DSX
 Dimethylamine salt solution.
2,4-Dichlorophenoxyacetic acid,                  43        2  DTI                ...............................
 Triisopropano-lamine salt solution.
Dichloropropane...........................       36  .......  DPX                DPB/DPP/DPC/DPL
1,3-Dichloropropene.......................       15        1  DPS                DPU/DPF
Dichloropropene, Dichloropropane mixtures.       15        1  DMX                ...............................
2,2-Dichloropropionic acid................        4  .......  DCN                ...............................
Dicyclopentadiene, see also 1,3-                 30  .......  DPT                CPD
 Cyclopentadiene dimer.
Diethanolamine............................        8  .......  DEA                ...............................
Diethanolamine salt of 2,4-                 .......  .......  .................  DDE
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Diethanolamine salt solution.
Diethylamine..............................        7  .......  DEN                ...............................
Diethylaminoethanol (IMO cargo name), see         8  .......  .................  DAE
 Diethylethanolamine.
2,6-Diethylaniline........................        9  .......  DMN                ...............................

[[Page 52]]


Diethylbenzene............................       32  .......  DEB                ...............................
Diethylene glycol.........................       40        2  DEG                ...............................
Diethylene glycol butyl ether, see Poly(2-  .......  .......  DME                PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Diethylene glycol butyl ether acetate, see  .......  .......  DEM                PAF
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether acetate.
Diethylene glycol dibenzoate..............       34  .......  DGZ                ...............................
Diethylene glycol dibutyl ether...........       40  .......  DIG                ...............................
Diethylene glycol diethyl ether...........       40  .......  .................
Diethylene glycol ethyl ether, see Poly(2-  .......  .......  DGE                PAG
 8)alkylene glycol monoalkyl (C1-C6) ether.
Diethylene glycol ethyl ether acetate, see  .......  .......  DGA                PAF
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether acetates.
Diethylene glycol n-hexyl ether, see        .......  .......  DHE                PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Diethylene glycol methyl ether, see Poly(2- .......  .......  DGM                PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Diethylene glycol methyl ether acetate,     .......  .......  DGR                PAF
 see Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether acetate.
Diethylene glycol phenyl ether............       40  .......  DGP                ...............................
Diethylene glycol phthalate...............       34  .......  DGL                ...............................
Diethylene glycol propyl ether, see Poly(2- .......  .......  DGO                PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Diethylenetriamine........................        7        2  DET                ...............................
Diethylenetriamine pentaacetic acid,             43  .......
 pentasodium salt solution.
Diethylethanolamine.......................        8  .......  DAE                ...............................
Diethyl ether (IMO cargo name), see Ethyl        41  .......  .................  EET
 ether.
Diethyl hexanol, see Decyl alcohol........  .......  .......  .................  DAX
Di-(2-ethylhexyl)adipate..................       34  .......  DEH                ...............................
Di-(2-ethylhexyl)phosphoric acid..........        1        1  DEP                ...............................
Di-(2-ethylhexyl)phthalate, see Dioctyl          34  .......  DIE                DOP
 phthalate.
Diethyl phthalate.........................       34  .......  DPH                ...............................
Diethyl sulfate...........................       34  .......  DSU                ...............................
Diglycidyl ether of Bisphenol A...........       41  .......  BDE                BPA
Diglycidyl ether of Bisphenol F...........       41  .......  DGF                ...............................
Diheptyl phthalate........................       34  .......  DHP                ...............................
Di-n-hexyl adipate........................       34  .......  DHA                ...............................
Dihexyl phthalate.........................       34  .......  .................
1,4-Dihydro-9,10-dihydroxy anthracene,            5  .......  DDH                ...............................
 disodium salt solution.
Diisobutylamine...........................        7  .......  DBU                ...............................
Diisobutyl carbinol (commercial cargo            20  .......  DBC                NNS
 name), see Nonyl alcohol.
Diisobutylene.............................       30  .......  DBL                ...............................
Diisobutyl ketone.........................       18  .......  DIK                ...............................
Diisobutyl phthalate......................       34  .......  DIT                ...............................
Diisodecyl phthalate, see Dialkyl(C7-C13)   .......  .......  DID                DAH
 phthalates.
Diisononyl adipate........................       34  .......  DNY                ...............................
Diisononyl phthalate, see Dialkyl(C7-C13)   .......  .......  DIN                DAH
 phthalates.
Diisooctyl phthalate......................       34  .......  DIO                ...............................
Diisopropanolamine........................        8  .......  DIP                ...............................
Diisopropylamine..........................        7  .......  DIA                ...............................
Diisopropylbenzene........................       32  .......  DIX                ...............................
Diisopropyl naphthalene...................       32  .......  DII                ...............................
N,N-Dimethylacetamide.....................       10  .......  DAC                ...............................
N,N-Dimethylacetamide solution............       10  .......  DLS                ...............................
Dimethyl adipate..........................       34  .......  DLA                ...............................
Dimethylamine.............................        7  .......  DMA                ...............................
Dimethylamine solution....................        7  .......  .................  DMG/DMY/DMC
Dimethylamine salt of 4-Chloro-2-           .......  .......  .................  CDM
 methylphenoxyacetic acid solution, see 4-
 Chloro-2-methylphenoxyacetic acid,
 Dimethylamine salt solution.
Dimethylamine salt of 2,4-                  .......  .......  .................  DAD/(DDA/DSX)
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Dimethylamine salt solution.
2,6-Dimethylaniline.......................        9  .......  DMM                ...............................
Dimethylbenzene, see Xylenes..............  .......  .......  .................  XLX
Dimethylcyclicsiloxane hydrolyzate........       34  .......  .................  ...............................
N,N-Dimethylcyclohexylamine...............        7  .......  DXN                ...............................
N,N-Dimethyldodecylamine (IMO cargo name),        7  .......  DDY                ...............................
 see Dodecyldimethylamine.
Dimethylethanolamine......................        8  .......  DMB                ...............................
Dimethylformamide.........................       10  .......  DMF                ...............................
Dimethyl furan............................       41  .......  .................  ...............................
Dimethyl glutarate........................       34  .......  DGT                ...............................
Dimethyl hydrogen phosphite...............       34        2  DPI                ...............................
Dimethyl naphthalene sulfonic acid, sodium       34        2  DNS                ...............................
 salt solution.
Dimethyloctanoic acid.....................        4  .......  DMO                ...............................

[[Page 53]]


Dimethyl phthalate........................       34  .......  DTL                ...............................
Dimethylpolysiloxane, see                        34  .......  DMP                ...............................
 Polydimethylsiloxane.
2,2-Dimethylpropane-1,3-diol..............       20  .......  DDI                ...............................
Dimethyl succinate........................       34  .......  DSE                ...............................
Dinitrotoluene............................       42  .......  DNM                DTT/DNL/DNU
Dinonyl phthalate, see Dialkyl(C7-C13)      .......  .......  DIF                DAH
 phthalates.
Dioctyl phthalate.........................       34  .......  DOP                DIE
1,4-Dioxane...............................       41  .......  DOX                ...............................
Dipentene.................................       30  .......  DPN                ...............................
Diphenyl..................................       32  .......  DIL                ...............................
Diphenylamine (molten)....................        9  .......  DAG                DAM/LRM
Diphenylamines, alkylated.................        7  .......  DAJ
Diphenylamine, reaction product with 2,2,4-       7  .......  DAK                ...............................
 trimethylpentene.
Diphenyl, Diphenyl ether mixture..........       33  .......  DDO                DTH
Diphenyl ether............................       41  .......  DPE                ...............................
Diphenyl ether, Diphenyl phenyl ether            41  .......  DOB                ...............................
 mixture.
Diphenylmethane diisocyanate..............       12  .......  DPM                ...............................
Diphenylol propane-Epichlorohydrin resins.        0        1  DPR                ...............................
Diphenyl oxide, see as diphenyl ether.....  .......  .......  .................  ...............................
Di-n-propylamine..........................        7  .......  DNA                ...............................
Dipropylene glycol........................       40  .......  DPG                ...............................
Dipropylene glycol butyl ether, see Poly(2- .......  .......  DBG                PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Dipropylene glycol dibenzoate.............       34  .......  DGY                ...............................
Dipropylene glycol methyl ether, see Poly   .......  .......  DPY                PAG
 (2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Distillates, flashed feed stocks..........       33  .......  DFF                ...............................
Distillates, straight run.................       33  .......  DSR                ...............................
Dithiocarbamate ester (C7-C35)............       34  .......  DHO
Ditridecyl adipate........................       34  .......  .................  ...............................
Ditridecyl phthalate, see Dialkyl(C7-C13)   .......  .......  DTP                DAH
 phthalates.
Diundecyl phthalate, see Dialkyl(C7-C13)    .......  .......  DUP                DAH
 phthalates.
Dodecane..................................       31        1  DOC                ALJ
tert-Dodecanethiol........................        0        2  DDL                ...............................
Dodecanol.................................       20  .......  DDN                LAL
Dodecene..................................       30  .......  DOZ                DDC/DOD
2-Dodecenylsuccinic acid, dipotassium salt       34  .......  .................  DSP
 solution.
Dodecyl alcohol (IMO cargo name), see       .......  .......  .................  DDN
 Dodecanol.
Dodecylamine, Tetradecylamine mixture.....        7  .......  DTA                ...............................
Dodecylbenzene, see Alkyl(C9+)benzenes....       32        2  DDB                AKB
Dodecylbenzenesulfonic acid...............        0     1, 2  DSA                ...............................
Dodecyldimethylamine,                             7  .......  DOT
 Tetradecyldimethylamine mixture.
Dodecyl diphenyl ether disulfonate               43  .......  DOS                ...............................
 solution.
Dodecyl hydroxypropyl sulfide.............        0        1  DOH                ...............................
Dodecyl methacrylate......................       14        1  DDM                ...............................
Dodecyl-Octadecyl methacrylate mixture....       14        1  DOM                ...............................
Dodecyl-Pentadecyl methacrylate mixtures..       14        1  DDP                ...............................
Dodecyl phenol............................       21  .......  DOL                ...............................
Dodecyl xylene............................       32        2  DXY
Drilling brine (containing Calcium,              43  .......  .................  DRB
 Potassium or Sodium salts).
Drilling brine (containing Zinc salts)....       43  .......  DZB                ...............................
Drilling mud (low toxicity) (if flammable        33  .......  .................  DRM
 or combustible).
Drilling mud (low toxicity) (if non-             43  .......  .................  DRM
 flammable or non-combustible).
Epichlorohydrin...........................       17        1  EPC                ...............................
Epoxy resin...............................       18  .......  .................  ...............................
ETBE, see Ethyl tert-butyl ether..........  .......  .......  .................  EBE
Ethane....................................       31        1  ETH                ...............................
Ethanolamine (monoethanolamine)...........        8  .......  MEA                ...............................
2-Ethoxyethanol, see Ethylene glycol        .......  .......  EEO                EGC
 monoalkyl ethers.
2-Ethoxyethyl acetate.....................       34  .......  EEA                ...............................
Ethoxylated alcohols, C11-C15, see the      .......  .......  .................  ...............................
 alcohol poylethoxylates.
Ethoxylated long chain (C16+)                     8  .......  ELA                ...............................
 alkyloxyalkanamine.
Ethoxy triglycol..........................       40  .......  ETG                ...............................
Ethyl acetate.............................       34  .......  ETA                ...............................
Ethyl acetoacetate........................       34  .......  EAA                ...............................
Ethyl acrylate............................       14        1  EAC                ...............................
Ethyl alcohol.............................       20        2  EAL                ...............................
Ethylamine................................        7        2  EAM                ...............................
Ethylamine solution.......................        7  .......  EAN                ...............................
Ethyl amyl ketone.........................       18  .......  EAK                ELK
Ethylbenzene..............................       32  .......  ETB                ...............................
Ethyl butanol.............................       20  .......  EBT                ...............................
N-Ethyl-n-butylamine......................        7  .......  EBA                ...............................

[[Page 54]]


Ethyl tert-butyl ether....................       41        2  EBE                ...............................
Ethyl butyrate............................       34  .......  EBR                ...............................
Ethyl chloride............................       36  .......  ECL                ...............................
Ethyl cyclohexane.........................       31        1  ECY
N-Ethylcyclohexylamine....................        7  .......  ECC                ...............................
Ethylene..................................       30  .......  ETL                ...............................
Ethyleneamine EA 1302.....................        7        2  EMX                EDA
Ethylene carbonate........................       34  .......  .................
Ethylene chlorohydrin.....................       20  .......  ECH                ...............................
Ethylene cyanohydrin......................       20  .......  ETC                ...............................
Ethylenediamine...........................        7        2  EDA                EMX
Ethylenediaminetetraacetic acid,                 43  .......  EDS                ...............................
 tetrasodium salt solution.
Ethylene dibromide........................       36  .......  EDB                ...............................
Ethylene dichloride.......................       36        2  EDC                ...............................
Ethylene glycol...........................       20        2  EGL                ...............................
Ethylene glycol acetate...................       34  .......  EGO                ...............................
Ethylene glycol butyl ether, see Ethylene   .......  .......  EGM                EGC
 glycol monoalkyl ethers.
Ethylene glycol tert-butyl ether, see       .......  .......  .................  EGC
 Ethylene glycol monoalkyl ethers.
Ethylene glycol butyl ether acetate.......       34  .......  EMA                ...............................
Ethylene glycol diacetate.................       34  .......  EGY                ...............................
Ethylene glycol dibutyl ether.............       40  .......  EGB                ...............................
Ethylene glycol ethyl ether, see Ethyl      .......  .......  EGE                EGC/EEO
 glycol monoalkyl ethers.
Ethylene glycol ethyl ether acetate, see 2- .......  .......  EGA                EEA
 Ethoxyethyl acetate.
Ethylene glycol hexyl ether...............       40  .......  EGH                ...............................
Ethylene glycol isopropyl ether, see        .......  .......  EGI                EGC
 Ethylene glycol monoalkyl ethers.
Ethylene glycol methyl butyl ether, see          40  .......  EMB                EGC
 Ethylene glycol monoalkyl ethers.
Ethylene glycol methyl ether, see Ethylene  .......  .......  EME                EGC
 glycol monoalkyl ethers.
Ethylene glycol methyl ether acetate......       34  .......  EGT                ...............................
Ethylene glycol monoalkyl ethers..........       40  .......  EGC                ...............................
    Including:                              .......  .......  .................  ...............................
    Ethylene glycol butyl ether             .......  .......  .................  ...............................
    Ethylene glycol isobutyl ether          .......  .......  .................  ...............................
    Ethylene glycol tert-butyl ether        .......  .......  .................  ...............................
    Ethylene glycol ethyl ether             .......  .......  .................  ...............................
    Ethylene glycol hexyl ether             .......  .......  .................  ...............................
    Ethylene glycol methyl ether            .......  .......  .................  ...............................
    Ethylene glycol propyl ether            .......  .......  .................  ...............................
    Ethylene glycol isopropyl ether         .......  .......  .................  ...............................
Ethylene glycol phenyl ether..............       40  .......  EPE                ...............................
Ethylene glycol phenyl ether, Diethylene         40  .......  EDX                ...............................
 glycol phenyl ether mixture.
Ethylene glycol propyl ether, see Ethylene  .......  .......  EGP                EGC
 glycol monoalkyl ethers.
Ethylene glycol iso-propyl ether, see       .......  .......  EGI                EGC
 Ethylene glycol monoalkyl ethers.
Ethylene oxide............................        0        1  EOX                ...............................
Ethylene oxide, Propylene oxide mixture...       16        1  EPM                ...............................
Ethylene-Propylene copolymer..............       30  .......
Ethylene-Vinyl acetate copolymer emulsion.       43  .......  .................  ...............................
Ethyl ether...............................       41  .......  EET                ...............................
Ethyl-3-ethoxypropionate..................       34  .......  EEP                ...............................
2-Ethylhexaldehyde, see Octyl aldehydes...  .......  .......  HA                 OAL
2-Ethylhexanoic acid, see Octanoic acids..  .......  .......  EHO                OAY
2-Ethylhexanol, see Octanol...............  .......  .......  EHX                OCX
2-Ethylhexyl acrylate.....................       14        1  EAI                ...............................
2-Ethylhexylamine.........................        7  .......  EHM                ...............................
Ethyl hexyl phthalate.....................       34  .......  EHE                ...............................
Ethyl hexyl tallate.......................       34  .......  EHT                ...............................
2-Ethyl-1-(hydroxymethyl)propane-1,3-diol,       34  .......  EHD                ...............................
 C8-C10 ester.
Ethylidene norbornene.....................       30        2  ENB                ...............................
Ethyl methacrylate........................       14        1  ETM                ...............................
N-Ethylmethylallylamine...................        7  .......  EML                ...............................
2-Ethyl-6-methyl-N-(1'-methyl-2-                  9  .......  EEM                ...............................
 methoxyethyl)aniline.
o-Ethyl phenol............................       21  .......  EPL                ...............................
Ethyl propionate..........................       34  .......  EPR                ...............................
2-Ethyl-3-propylacrolein..................       19        2  EPA                ...............................
Ethyl toluene.............................       32  .......  ETE                ...............................
Fatty acids (saturated, C13+), see Fatty    .......  .......  .................  ...............................
 acids (saturated, C14+).
Fatty acids (saturated, C14+).............       34  .......  FAD                SRA
Ferric chloride solution..................        1        1  FCS                FCL
Ferric                                           43        2  FHX                STA
 hydroxyethylethylenediaminetriacetic
 acid, trisodium salt solution.
Ferric nitrate, Nitric acid solution......        3  .......  FNN                ...............................
Fish solubles (water based fish meal             43  .......  FSO                ...............................
 extracts).
Fluorosilicic acid........................        1        1  FSJ                ...............................
Formaldehyde, Methanol mixtures...........       19        2  MTM                ...............................
Formaldehyde solution.....................       19        2  FMS                ...............................

[[Page 55]]


Formamide.................................       10  .......  FAM                ...............................
Formic acid...............................        4        2  FMA                ...............................
Fructose solution.........................       43  .......  .................  ...............................
Fumaric adduct of Rosin, water dispersion.       43  .......  FAR                ...............................
Furfural..................................       19  .......  FFA                ...............................
Furfuryl alcohol..........................       20        2  FAL                ...............................
Gas oil, cracked..........................       33  .......  GOC                ...............................
Gasoline blending stock, alkylates........       33  .......  GAK                ...............................
Gasoline blending stock, reformates.......       33  .......  GRF                ...............................
Gasolines:
    Automotive (not over 4.23 grams lead         33  .......  GAT
     per gal.).
    Aviation (not over 4.86 grams lead per       33  .......  GAV                AVA
     gal).
    Casinghead (natural)..................       33  .......  GCS
    Polymer...............................       33  .......  GPL                ...............................
    Straight run..........................       33  .......  GSR                ...............................
Glucose solution..........................       43  .......  GLU                DTS
Glutaraldehyde solution...................       19  .......  GTA                ...............................
Glycerine.................................       20        2  GCR                ...............................
Glycerine, Dioxanedimethanol mixture......       20  .......  GDM
Glycerol monooleate.......................       20  .......  GMO                ...............................
Glycerol polyalkoxylate...................       34  .......  .................  ...............................
Glyceryl triacetate.......................       34  .......  .................  ...............................
Glycidyl ester of C10 trialkyl acetic acid       34  .......  .................  GLT
 (IMO cargo name), see Glycidyl ester of
 tridecyl acetic acid.
Gylcidyl ester of tridecylacetic acid.....       34  .......  GLT                ...............................
Glycidyl ester of Versatic acid, see        .......  .......  .................  GLT
 Gylcidyl ester of tridecylacetic acid.
Glycine, sodium salt solution.............        7  .......  .................  ...............................
Glycol diacetate, see Ethylene glycol       .......  .......  .................  EGY
 diacetate.
Glycolic acid solution....................        4  .......  GLC                ...............................
Glyoxal solutions.........................       19  .......  GOS                ...............................
Glyoxylic acid............................        4  .......  GAC
Glyphosate solution (not containing               7  .......  GIO
 surfactant) (See also ROUNDUP).
Heptadecane, see n-Alkanes (C10+).........  .......  .......  .................  ALJ
Heptane...................................       31        1  HMX                ALK (HPI/HPT)
n-Heptanoic acid..........................        4  .......  HEP                ...............................
Heptanol..................................       20  .......  HTX                HTN
Heptene...................................       30  .......  HPX                HTE
Heptyl acetate............................       34  .......  HPE                ...............................
Herbicide (C15-H22-NO2-Cl), see             .......  .......  .................  MCO
 Metolachlor.
Hexadecanol (cetyl alcohol), see Alcohols   .......  .......  .................  ALY
 (C13+).
1-Hexadecylnaphthalene, 1,4-                     32  .......  .................
 bis(Hexadecyl)naphthalene mixture.
Hexaethylene glycol, see Polyethylene       .......  .......
 glycol.
Hexamethylene glycol......................       20  .......
Hexamethylenediamine......................        7  .......  HME                HMD/HMC
Hexamethylenediamine solution.............        7  .......  HMC                HMD/HME
Hexamethylenediamine adipate solution.....       43  .......  HAM                ...............................
Hexamethylene diisocyanate................       12  .......  HDI
Hexamethylenetetramine....................        7  .......  HMT                ...............................
Hexamethylenetetramine solutions..........        7  .......  HTS                ...............................
Hexamethylenimine.........................        7  .......  HMI                ...............................
Hexane....................................       31        2  HXS                ALK (IHA/HXA)
Hexanoic acid.............................        4  .......  HXO                ...............................
Hexanol...................................       20  .......  HXN                ...............................
Hexene....................................       30  .......  HEX                HXE/HXT/MPN/MTN
Hexyl acetate.............................       34  .......  HAE                HSA
Hexylene glycol...........................       20  .......  HXG                ...............................
HiTec 321.................................        7  .......  HIT                ...............................
Hog grease, see Lard......................  .......  .......  .................  ...............................
Hydrochloric acid.........................        1        1  HCL                ...............................
Hydrofluorosilicic acid, see Fluorosilicic  .......  .......  HFS                FSJ
 acid.
bis(Hydrogenated tallow alkyl)methyl              7  .......  HTA                ...............................
 amines.
Hydrogen peroxide solutions...............        0        1  .................  HPN/HPS/HPO
2-Hydroxyethyl acrylate...................       14        2  HAI                ...............................
N-(Hydroxyethyl)ethylenediamine triacetic        43  .......  HET                FHX
 acid, trisodium salt solution.
N,N-bis(2-Hydroxyethyl) oleamide..........       10  .......  HOO
2-Hydroxy-4-(methylthio)butanoic acid.....        4  .......  HBA                ...............................
Hydroxy terminated polybutadiene (IMO            20  .......  .................  ...............................
 cargo name), see Polybutadiene, hydroxy
 terminated.
alpha-hydro-omega-                          .......  .......  .................  HTO
 Hydroxytetradeca(oxytetramethylene), see
 Poly(tetramethylene ether) glycols (mw
 950-1050).
Icosa(oxypropane-2,3-diyl)s...............       20  .......  IOP                ...............................
Isophorone................................       18        2  IPH                ...............................
Isophorone diamine........................        7  .......  IPI                ...............................

[[Page 56]]


Isophorone diisocyanate...................       12  .......  IPD                ...............................
Isoprene..................................       30  .......  IPR                ...............................
Isoprene concentrate (Shell)..............       30  .......  ISC                ...............................
Isopropylbenzene (cumene), see              .......  .......  .................  PBY
 Propylbenzene.
Jet fuels:
    JP-4..................................       33  .......  JPF                ...............................
    JP-5..................................       33  .......  JPV                ...............................
    JP-8..................................       33  .......  JPE                ...............................
Kaolin clay slurry........................       43  .......  .................  ...............................
Kerosene..................................       33  .......  KRS                ...............................
Ketone residue............................       18  .......  KTR                ...............................
Kraft black liquor........................        5  .......  .................  KPL
Kraft pulping liquors (Black, Green, or           5  .......  KPL                ...............................
 White).
Lactic acid...............................        0     1, 2  LTA
Lactonitrile solution.....................       37  .......  LNI                ...............................
Lard......................................       34  .......  .................  ...............................
Latex (ammonia inhibited).................       30  .......  LTX
Latex, liquid synthetic...................       43  .......  LLS                LTX
Lauric acid...............................       34  .......  LRA                ...............................
Lauryl polyglucose, see Alkyl(C12 -C14)     .......  .......  LAP                AGM
 polyglucoside solution (55% or less).
Lecithin..................................       34  .......  LEC                ...............................
Lignin liquor.............................       43  .......  .................  ...............................
Lignin sulfonic acid, sodium salt           .......  .......  .................  ...............................
 solution, see Sodium lignosulfonate
 solution.
d-Limonene, see Dipentene.................  .......  .......  .................
Liquid Streptomyces solubles..............       43  .......
Long chain alkaryl polyether (C11-C20)....       41  .......  LCP
Long chain alkaryl sulfonic acid (C16-C60)        0     1, 2  LCS
Long chain alkylphenate/Phenol sulfide           21  .......  LPS
 mixture.
Long chain polyetheramine in alkyl(C2-            7  .......  LCE                ...............................
 C4)benzenes.
l-Lysine solution.........................       43  .......  LYS                ...............................
Magnesium chloride solution...............        0     1, 2  .................  ...............................
Magnesium hydroxide slurry................        5  .......  .................  ...............................
Magnesium long chain alkaryl sulfonate           34  .......  MAS                MSE
 (C11-C50).
Magnesium long chain alkyl phenate sulfide       34  .......  MPS
 (C8-C20).
Magnesium long chain alkyl salicylate            34  .......  MLS
 (C11+).
Magnesium nonyl phenol sulfide, see         .......  .......  .................  MPS
 Magnesium long chain alkyl phenate
 sulfide (C8-C20).
Magnesium sulfonate, see Magnesium long     .......  .......  MSE                MAS
 chain alkaryl sulfonate (C11-C50).
Maleic anhydride..........................       11  .......  MLA                ...............................
Mercaptobenzothiazol, sodium salt solution        5  .......  .................  SMB
 (IMO cargo name), see Sodium-2-
 mercaptobenzothiazol solution.
Mesityl oxide.............................       18        2  MSO                ...............................
Metam sodium solution.....................        7  .......  MSS                SMD
Methacrylic acid..........................        4  .......  MAD                ...............................
Methacrylic resin in Ethylene dichloride..       14        1  MRD
Methacrylonitrile.........................       15        2  MET                ...............................
Methane...................................       31        1  MTH                ...............................
3-Methoxy-1-butanol.......................       20  .......  .................  ...............................
3-Methoxybutyl acetate....................       34  .......  MOA                ...............................
N-(2-Methoxy-1-methyl ethyl)-2-ethyl-6-          34  .......  .................  MCO
 methyl chloroacetanilide (IMO cargo
 name), see Metolachlor.
1-Methoxy-2-propyl acetate................       34  .......  MPO                ...............................
Methoxy triglycol.........................       40  .......  MTG                ...............................
Methyl acetate............................       34  .......  MTT                ...............................
Methyl acetoacetate.......................       34  .......  MAE                ...............................
Methyl acetylene, Propadiene mixture......       30  .......  MAP                ...............................
Methyl acrylate...........................       14        1  MAM                ...............................
Methyl alcohol............................       20        2  MAL                ...............................
Methylamine solutions.....................        7  .......  MSZ                ...............................
Methyl amyl acetate.......................       34  .......  MAC                ...............................
Methyl amyl alcohol.......................       20  .......  MAA                MIC
Methyl amyl ketone........................       18  .......  MAK                ...............................
Methyl bromide............................       36  .......  MTB                ...............................
Methyl butanol, see the amyl alcohols.....  .......  .......  .................  AAI
Methyl butenol............................       20  .......  MBL                ...............................
Methyl butenes (tert-amylenes), see         .......  .......  .................  PTX
 Pentene.
Methyl tert-butyl ether...................       41        2  MBE                ...............................
Methyl butyl ketone.......................       18        2  MBK                ...............................
Methylbutynol, see 2-Methyl-2-hydroxy-3-         20  .......  MBY                MHB
 butyne.
3-Methyl butyraldehyde....................       19  .......  .................

[[Page 57]]


Methyl butyrate...........................       34  .......  MBU                ...............................
Methyl chloride...........................       36  .......  MTC                ...............................
Methylcyclohexane.........................       31        1  MCY                ...............................
Methylcyclopentadiene dimer...............       30  .......  MCK                ...............................
Methyl diethanolamine.....................        8  .......  MDE                MAB
Methylene chloride, see Dichloromethane...  .......  .......  .................  DCM
2-Methyl-6-ethylaniline...................        9  .......  MEN                ...............................
Methyl ethyl ketone.......................       18        2  MEK                ...............................
2-Methyl-5-ethylpyridine..................        9  .......  MEP                ...............................
Methyl formate............................       34  .......  MFM                ...............................
N-Methylglucamine solution................       43  .......  MGC                ...............................
Methyl heptyl ketone......................       18  .......  MHK                ...............................
2-Methyl-2-hydroxy-3-butyne...............       20  .......  MHB                ...............................
Methyl isoamyl ketone.....................       18  .......  .................  MAK
Methyl isobutyl carbinol, see Methyl amyl   .......  .......  MIC                MAA
 alcohol.
Methyl isobutyl ketone....................       18        2  MIK                ...............................
Methyl methacrylate.......................       14        1  MMM                ...............................
3-Methyl-3-methoxybutanol.................       20  .......  .................  ...............................
3-Methyl-3-methoxybutyl acetate...........       34  .......  .................  ...............................
Methyl naphthalene........................       32  .......  MNA                ...............................
Methylolureas.............................       19  .......  MUS                ...............................
2-Methyl pentane..........................       31        1  .................  IHA
2-Methyl-1-pentene, see Hexene............  .......  .......  MPN                HEX
4-Methyl-1-pentene, see Hexene............  .......  .......  MTN                HEX
Methyl tert-pentyl ether (IMO cargo name),       41  .......  .................  AYE
 see tert-Amyl methyl ether.
2-Methyl-1,3-propanediol..................       20  .......  MDL
Methyl propyl ketone......................       18  .......  MKE
Methylpyridine............................        9  .......  .................  MPR/MPE/MPF
N-Methyl-2-pyrrolidone....................        9        2  MPY                ...............................
Methyl salicylate.........................       34  .......  MES                ...............................
alpha-Methylstyrene.......................       30  .......  MSR                ...............................
3-(Methylthio)propionaldehyde.............       19  .......  MTP                ...............................
Metolachlor...............................       34  .......  MCO                ...............................
Milk......................................       43  .......  .................  ...............................
Mineral spirits...........................       33  .......  MNS                ...............................
Molasses..................................       20  .......  .................  ...............................
Molasses residue..........................        0        1  .................  ...............................
Monochlorodifluoromethane.................       36  .......  MCF                ...............................
Monoethanolamine, see Ethanolamine........  .......  .......  .................  ...............................
Monoisopropanolamine, see Propanolamine...  .......  .......  .................  ...............................
Morpholine................................        7        2  MPL                ...............................
Motor fuel antiknock compounds containing         0        1  MFA                ...............................
 lead alkyls.
MTBE, see Methyl tert-butyl ether.........  .......  .......  .................  MBE
Myrcene...................................       30  .......  MRE                ...............................
Naphtha:
    Aromatic..............................       33  .......  .................  ...............................
    Coal tar solvent......................       33  .......  NCT                ...............................
    Heavy.................................       33  .......  .................  ...............................
    Paraffinic............................       33  .......  .................
    Petroleum.............................       33  .......  PTN                ...............................
    Solvent...............................       33  .......  NSV                ...............................
    Stoddard solvent......................       33  .......  NSS                ...............................
    Varnish Makers' and Painters'.........       33  .......  NVM                ...............................
Naphthalene...............................       32  .......  NTM                ...............................
Naphthalene still residue.................       32        2  NSR                ...............................
Naphthalene sulfonic acid-formaldehyde            0        1  NFS                ...............................
 copolymer, sodium salt solution.
Naphthalene sulfonic acid, sodium salt           34  .......  NSA                ...............................
 solution.
Naphthenic acid...........................        4  .......  NTI                ...............................
Naphthenic acid, sodium salt solution.....       43  .......  NTS                ...............................
Neodecanoic acid..........................        4  .......  NEA                ...............................
NIAX POLYOL APP 240C......................        0     1, 2  NXP                ...............................
Nitrating acid............................        0        1  NIA                ...............................
Nitric acid (70% or less).................        3  .......  NCD                ...............................
Nitric acid (greater than 70%)............        0        1  .................  NAC
Nitrobenzene..............................       42  .......  NTB                ...............................
o-Nitrochlorobenzene, see                   .......  .......  .................  CNO
 Chloronitrobenzene.
Nitroethane...............................       42  .......  NTE                ...............................
Nitroethane, 1-Nitropropane mixtures......       42  .......  NNO                ...............................
o-Nitrophenol.............................        0     1, 2  NTP                NIP/NPH
Nitropropane..............................       42  .......  NPM                NPN/NPP
Nitropropane, Nitroethane mixture.........       42  .......  .................  NNO (NNM/NNL)
Nitrotoluene..............................       42  .......  NIT                NIE/NTT/NTR
Nonane....................................       31        1  NAX                ALK (NAN)

[[Page 58]]


Nonanoic acid.............................        4  .......  NNA                NAI/NIN
Nonanoic, Tridecanoic acid mixture........        4  .......  NAT
Nonene....................................       30  .......  NOO                NON/NNE
Nonyl acetate.............................       34  .......  NAE
Nonyl alcohol.............................       20        2  NNS                NNI/NNN/DBC
Nonylbenzene, see Alkyl(C9+)benzenes......  .......  .......  .................  AKB
Nonyl methacrylate........................       14        1  NMA                ...............................
Nonyl phenol..............................       21  .......  NNP                ...............................
Nonyl phenol poly(4+)ethoxylates..........       40  .......  NPE                ...............................
Nonyl phenol sulfide solution, see Alkyl    .......  .......  .................  AKS/NPS
 phenol sulfide (C8-C40).
Noxious Liquid Substance, n.o.s. (NLS's)..        0        1  .................  ...............................
1-Octadecene, see the olefin or alpha-      .......  .......  .................  ...............................
 olefin entries.
Octadecenoamide...........................       10  .......  ODD                ...............................
Octadecenol (oleyl alcohol), see Alcohols   .......  .......  .................  ALY
 (C13+).
Octane....................................       31        1  OAX                ALK (IOO/OAN)
Octanoic acid.............................        4  .......  OAY                OAA/EHO
Octanol...................................       20        2  OCX                IOA/OTA/EHX
Octene....................................       30  .......  OTX                OTE
n-Octyl acetate...........................       34  .......  OAF                OAE
Octyl alcohol, see Octanol................  .......  .......  .................  OCX
Octyl aldehyde............................       19  .......  OAL                IOC/OLX/EHA
Octyl decyl adipate.......................       34  .......  ODA                ...............................
Octyl nitrate, see Alkyl(C7-C9) nitrates..  .......  .......  ONE                AKN
Octyl phenol..............................       21  .......  .................  ...............................
Octyl phthalate, see Dioctyl phthalate....  .......  .......  .................  DOP
Oil, edible:
    Beechnut..............................       34  .......  OBN                VEO
    Castor................................       34  .......  OCA                VEO
    Cocoa butter..........................       34  .......  OCB                VEO
    Coconut...............................       34        2  OCC                VEO
    Cod liver.............................       34  .......  OCL                AFN
    Corn..................................       34  .......  OCO                VEO
    Cottonseed............................       34  .......  OCS                VEO
    Fish..................................       34        2  OFS                AFN
    Groundnut.............................       34  .......  OGN                VEO
    Hazelnut..............................       34  .......  OHN                VEO
    Lard..................................       34  .......  OLD                AFN
    Maize.................................       34  .......  .................  VEO (OCO)
    Nutmeg butter.........................       34  .......  ONB                VEO
    Olive.................................       34  .......  OOL                VEO
    Palm..................................       34        2  OPM                VEO
    Palm kernel...........................       34  .......  OPO                VEO
    Peanut................................       34  .......  OPN                VEO
    Poppy.................................       34  .......  OPY                VEO
    Poppy seed............................       34  .......  .................  VEO
    Raisin seed...........................       34  .......  ORA                VEO
    Rapeseed..............................       34  .......  ORP                VEO
    Rice bran.............................       34  .......  ORB                VEO
    Safflower.............................       34  .......  OSF                VEO
    Salad.................................       34  .......  OSL                VEO
    Sesame................................       34  .......  OSS                VEO
    Soya bean.............................       34  .......  OSB                VEO
    Sunflower seed........................       34  .......  OSN                VEO
    Tucum.................................       34  .......  OTC                VEO
    Vegetable.............................       34  .......  OVG                VEO
    Walnut................................       34  .......  OWN                VEO
Oil, fuel:
    No. 1.................................       33  .......  OON                ...............................
    No. 1-D...............................       33  .......  OOD                ...............................
    No. 2.................................       33  .......  OTW                ...............................
    No. 2-D...............................       33  .......  OTD                ...............................
    No. 4.................................       33  .......  OFR                ...............................
    No. 5.................................       33  .......  OFV                ...............................
    No. 6.................................       33  .......  OSX                ...............................
Oil, misc:
    Aliphatic.............................       33  .......  .................  ...............................
    Animal................................       34  .......  OMA                AFN
    Aromatic..............................       33  .......  .................  ...............................
    Clarified.............................       33  .......  OCF                ...............................
    Coal..................................       33  .......  .................  ...............................
    Coconut oil, fatty acid methyl ester..       34  .......  OCM                ...............................
    Cotton seed oil, fatty acid...........       34  .......  CFY                ...............................
    Crude.................................       33  .......  OIL                ...............................

[[Page 59]]


    Diesel................................       33  .......  ODS                ...............................
    Gas, high pour........................       33  .......  .................  ...............................
    Gas, low pour.........................       33  .......  .................  ...............................
    Gas, low sulfur.......................       33  .......  .................  ...............................
    Heartcut distillate...................       33  .......  .................  ...............................
    Lanolin...............................       34  .......  OLL                AFN
    Linseed...............................       33  .......  OLS                ...............................
    Lubricating...........................       33  .......  OLB                ...............................
    Mineral...............................       33  .......  OMN                ...............................
    Mineral seal..........................       33  .......  OMS                ...............................
    Motor.................................       33  .......  OMT                ...............................
    Neatsfoot.............................       33  .......  ONF                AFN
    Oiticica..............................       34  .......  OOI                ...............................
    Palm oil, fatty acid methyl ester.....       34  .......  OPE                ...............................
    Penetrating...........................       33  .......  OPT                ...............................
    Perilla...............................       34  .......  OPR
    Pilchard..............................       34  .......  OPL                AFN
    Pine..................................       33  .......  OPI                PNL
    Residual..............................       33  .......  .................  ...............................
    Road..................................       33  .......  ORD                ...............................
    Rosin.................................       33  .......  ORN                ...............................
    Seal..................................       34  .......  .................  ...............................
    Soapstock.............................       34  .......  OIS                ...............................
    Soybean (epoxidized)..................       34  .......  .................  EVO
    Sperm.................................       33  .......  OSP                AFN
    Spindle...............................       33  .......  OSD                ...............................
    Tall..................................       34  .......  OTL                ...............................
    Tall, fatty acid......................       34        2  TOF                ...............................
    Transformer...........................       33  .......  OTF                ...............................
    Tung..................................       34  .......  OTG                ...............................
    Turbine...............................       33  .......  OTB                ...............................
    Wood..................................       34  .......  .................  ...............................
Olefin/Alkyl ester copolymer (molecular          34  .......  OCP
 weight 2000+).
Olefin mixtures...........................       30  .......  .................  OFX/OFY
alpha-Olefins (C6-C18) mixtures...........       30  .......  OAM                ...............................
Olefins (C13+)............................       30  .......  .................  ...............................
Oleic acid................................       34  .......  OLA                ...............................
Oleum.....................................        0     1, 2  OLM                ...............................
Oleyl alcohol (octadecenol), see Alcohols   .......  .......  .................  ALY
 (C13+).
Oleylamine................................        7  .......  OLY                ...............................
ORIMULSION, see Asphalt emulsion..........  .......  .......  .................  ASQ
Oxyalkylated alkyl phenol formaldehyde....       33  .......  .................  ...............................
Palm kernel acid oil......................       34  .......  PNO                ...............................
Palm kernel acid oil, methyl ester........       34  .......  PNF                ...............................
Palm kernel oil, fatty acid, see Palm       .......  .......  .................  PNO
 kernel acid oil.
Palm kernel oil, fatty acid methyl ester,   .......  .......  .................  PNF
 see Palm kernel acid oil, methyl ester.
Palm stearin..............................       34  .......  PMS                ...............................
n-Paraffins (C10-C20), see n-Alkanes        .......  .......  PFN                ALJ
 (C10+).
Paraldehyde...............................       19  .......  PDH                ...............................
Paraldehyde-Ammonia reaction product......        9  .......  PRB                ...............................
Pentachloroethane.........................       36  .......  PCE                ...............................
Pentacosa(oxypropane-2,3-diyl)s...........       20  .......  POY                ...............................
Pentadecanol, see Alcohols (C13+).........  .......  .......  PDC                ALY
1,3-Pentadiene............................       30  .......  PDE                PDN
Pentaethylene glycol, see Polyethylene      .......  .......  .................  ...............................
 glycols.
Pentaethylene glycol methyl ether, see      .......  .......  .................  PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Pentaethylenehexamine.....................        7  .......  PEN
Pentaethylenehexamine,                            7  .......  PEP                ...............................
 Tetraethylenepentamine mixture.
Pentane...................................       31        1  PTY                IPT/PTA
Pentanoic acid............................        4  .......  POC                ...............................
n-Pentanoic acid, 2-Methyl butryic acid           4  .......  POJ                POC
 mixture.
Pentasodium salt of Diethylenetriamine      .......  .......  .................  ...............................
 pentaacetic acid solution, see
 Diethylenetriamine pentaacetic acid,
 pentasodium salt solution.
Pentene...................................       30  .......  PTX                PTE
Pentyl aldehyde...........................       19  .......  .................
n-Pentyl propionate.......................       34  .......  PPE
Perchloroethylene.........................       36        2  PER                TTE
Petrolatum................................       33  .......  PTL                ...............................
Phenol....................................       21  .......  PHN                ...............................
1-Phenyl-1-xylyl ethane...................       32  .......  PXE                ...............................
Phosphate esters, alkyl(C12-C14)amine.....        7  .......  PEA                ...............................

[[Page 60]]


Phosphoric acid...........................        1        1  PAC                ...............................
Phosphorus................................        0        1  PPW                PPR/PPB
Phthalate based polyester polyol..........        0     1, 2  PBE                ...............................
Phthalic anhydride........................       11  .......  PAN                ...............................
alpha-Pinene..............................       30  .......  PIO                PIN
beta-Pinene...............................       30  .......  PIP                PIN
Pine oil..................................       33  .......  PNL                OPI
Polyalkyl(C18-C22) acrylate in Xylene.....       14        1  PIX                ...............................
Polyalkylene glycol butyl ether, see        .......  .......  PGB                PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Poly(2-8)alkylene glycol monoalkyl(C1-C6)        40  .......  PAG
 ether.
    Including:                              .......  .......  .................  ...............................
    Diethylene glycol butyl ether           .......  .......  .................  ...............................
    Diethylene glycol ethyl ether           .......  .......  .................  ...............................
    Diethylene glycol n-hexyl ether         .......  .......  .................  ...............................
    Diethylene glycol methyl ether          .......  .......  .................  ...............................
    Diethylene glycol n-propyl ether        .......  .......  .................  ...............................
    Dipropylene glycol butyl ether          .......  .......  .................  ...............................
    Dipropylene glycol methyl ether         .......  .......  .................  ...............................
    Polyalkylene glycol butyl ether         .......  .......  .................  ...............................
    Polyethylene glycol monoalkyl ether     .......  .......  .................  ...............................
    Polypropylene glycol methyl ether       .......  .......  .................  ...............................
    Tetraethylene glycol methyl ether       .......  .......  .................  ...............................
    Triethylene glycol butyl ether          .......  .......  .................  ...............................
    Triethylene glycol ethyl ether          .......  .......  .................  ...............................
    Triethylene glycol methyl ether         .......  .......  .................  ...............................
    Tripropylene glycol methyl ether        .......  .......  .................  ...............................
Poly(2-8)alkylene glycol monoalkyl(C1-C6)        34  .......  PAF
 ether acetate.
    Including:                              .......  .......  .................  ...............................
    Diethylene glycol butyl ether acetate   .......  .......  .................  ...............................
    Diethylene glycol ethyl ether acetate   .......  .......  .................  ...............................
    Diethylene glycol methyl ether acetate  .......  .......  .................  ...............................
Polyalkylene glycols, Polyalkylene glycol        40  .......  PPX                ...............................
 monoalkyl ethers mixtures.
Polyalkylene oxide polyol.................       20  .......  PAO                ...............................
Polyalkyl methacrylate (C1-C20)...........  .......  .......  .................  ...............................
Polyalkyl(C10-C20)methacrylate............       14        1  PMT                ...............................
Polyalkyl(C10-C18)methacrylate/Ethylene          14        1  PEM                ...............................
 propylene copolymer mixture.
Polyaluminum chloride solution............        1        1  .................  ...............................
Polybutadiene, hydroxyl terminated........       20  .......  .................  ...............................
Polybutene................................       30  .......  PLB                ...............................
Polybutenyl succinimide...................       10  .......  PBS                ...............................
Poly(2+)cyclic aromatics..................       32  .......  PCA                ...............................
Polydimethylsiloxane......................       34  .......  .................  ...............................
Polyether (molecular weight 2000+)........       41  .......  PYR
Polyethylene glycol.......................       40  .......  .................  ...............................
Polyethylene glycol dimethyl ether........       40  .......  .................  ...............................
Polyethylene glycol monoalkyl ether, see    .......  .......  PEE                PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Polyethylene polyamines...................        7        2  PEB                ...............................
Polyferric sulfate solution...............       34  .......  PSS                ...............................
Polyglycerine, Sodium salts solution             20        2  PGT
 (containing less than 3% Sodium
 hydroxide).
Polyglycerol..............................       20  .......  .................  GCR
Polyisobutenamine in aliphatic (C10-C14)          7  .......  PIB                ...............................
 solvent.
Polyisobutenyl anhydride adduct...........       11  .......  .................
Poly(4+)isobutylene.......................       30  .......
Polymethylene polyphenyl isocyanate.......       12  .......  PPI                ...............................
Polymethylsiloxane........................       34  .......  .................  ...............................
Polyolefin (molecular weight 300+)........       30  .......
Polyolefin amide alkeneamine (C17+).......       33  .......  POH
Polyolefin amide alkeneamine (C28+).......       33  .......  POD
Polyolefin amide alkeneamine borate (C28-        33  .......  PAB
 C250).
Polyolefin amide alkeneamine/Molybdenum           7  .......
 oxysulfide mixture.
Polyolefin amide alkeneamine polyol.......       20  .......  PAP
Poly(C17+)olefin amine....................        7  .......  POG                ...............................
Polyolefinamine (C28-C250)................       33  .......  POM                ...............................
Polyolefinamine in alkyl(C2-C4)benzenes...       32  .......  POF
Polyolefin aminoester salt................       34  .......  PAE                ...............................
Polyolefin anhydride......................       11  .......  PAR
Polyolefin ester (C28-C250)...............       34  .......  POS
Polyolefin phenolic amine (C28-C250)......        7  .......  PPH
Polyolefin phosphorosulfide, barium              34  .......  PPS
 derivative (C28-C250).
Poly(20)oxyethylene sorbitan monooleate...       34  .......  PSM                ...............................

[[Page 61]]


Poly(5+)propylene.........................       30  .......  PLQ                PLP
Polypropylene glycol......................       40  .......  PGC                ...............................
Polypropylene glycol methyl ether, see      .......  .......  PGM                PGE
 Propylene glycol monoalkyl ether.
Polysiloxane..............................       34  .......  .................  DMP
Poly(tetramethylene ether) glycols (mw 950-      40  .......  HTO                ...............................
 1050) (alpha-hydro-omega-
 Hydroxytetradeca(oxytetramethylene)).
Polytetramethylene ether glycol...........       40  .......  .................  ...............................
Potassium chloride solution...............       43  .......  PCS                (DRB)
Potassium formate solution................       34  .......  PFR                ...............................
Potassium hydroxide solution (IMO cargo           5        2  .................  CPS
 name), see Caustic potash solution.
Potassium oleate..........................       34  .......  POE                ...............................
Potassium salt of polyolefin acid.........       34  .......  .................  ...............................
Potassium thiosulfate solution............       43  .......  PTF                ...............................
Propane...................................       31        1  PRP                ...............................
Propanolamine.............................        8  .......  PAX                MPA/PLA
Propionaldehyde...........................       19  .......  PAD                ...............................
Propionic acid............................        4  .......  PNA                ...............................
Propionic anhydride.......................       11  .......  PAH                ...............................
Propionitrile.............................       37  .......  PCN                ...............................
n-Propoxypropanol, see Propylene glycol     .......  .......  PXP                PGE
 monoalkyl ether.
Propyl acetate............................       34  .......  .................  IAC/PAT
Propyl alcohol............................       20        2  .................  IPA/PAL
Propylamine...............................        7  .......  .................  IPP/PRA
iso-Propylamine solution..................        7  .......  .................  IPO/IPQ
Propylbenzene.............................       32        2  PBY                PBZ/CUM
n-Propyl chloride.........................       36  .......  PRC
iso-Propylcyclohexane.....................       31        1  IPX                ...............................
Propylene.................................       30  .......  PPL                ...............................
Propylene-butylene copolymer..............       30  .......  PBP                ...............................
Propylene carbonate.......................       34  .......  .................  ...............................
Propylene dimer...........................       30  .......  PDR                ...............................
Propylene glycol..........................       20        2  PPG                ...............................
Propylene glycol n-butyl ether, see         .......  .......  PGD                PGE
 Propylene glycol monoalkyl ether.
Propylene glycol ethyl ether, see           .......  .......  PGY                PGE
 Propylene glycol monoalkyl ether.
Propylene glycol methyl ether, see          .......  .......  PME                PGE
 Propylene glycol monoalkyl ether.
Propylene glycol methyl ether acetate.....       34  .......  PGN
Propylene glycol monoalkyl ether..........       40  .......  PGE                ...............................
    Including:                              .......  .......  .................  ...............................
    n-Propoxypropanol                       .......  .......  .................  ...............................
    Propylene glycol n-butyl ether          .......  .......  .................  ...............................
    Propylene glycol ethyl ether            .......  .......  .................  ...............................
    Propylene glycol methyl ether           .......  .......  .................  ...............................
    Propylene glycol propyl ether           .......  .......  .................  ...............................
Propylene glycol phenyl ether.............       40  .......  PGP                ...............................
Propylene glycol propyl ether, see          .......  .......  .................  PGE
 Propylene glycol monoalkyl ether.
Propylene oxide...........................       16        1  POX                ...............................
Propylene, Propane, MAPP gas mixture......       30        2  PPM                ...............................
Propylene tetramer........................       30  .......  PTT                ...............................
Propylene trimer..........................       30  .......  PTR                ...............................
Propyl ether..............................       41  .......  .................  IPE/PRE
Pseudocumene, see Trimethylbenzene........  .......  .......  .................  TME/TRE
Pyridine..................................        9  .......  PRD                ...............................
Pyridine bases, see Paraldehyde-Ammonia     .......  .......  .................  PRB
 reaction product.
Roehm monomer 6615........................       14        1  RMN                ...............................
Rosin oil.................................       33  .......  ORN                ...............................
Rosin soap (disproportionated) solution...       43  .......  RSP                ...............................
ROUNDUP (See also Glyphosate solution)....        7  .......  RUP                ...............................
Rum, see Alcoholic beverages..............  .......  .......  .................  ...............................
SAP 7001..................................        0        1  SON                ...............................
Sewage sludge.............................       43  .......  .................  ...............................
Silica slurry.............................       43  .......  .................  ...............................
Sludge, treated...........................       43  .......  .................  ...............................
Sodium acetate, Glycol, Water mixture (not       34        2  SAO                SAP
 containing Sodium hydroxide).
Sodium acetate, Glycol, Water mixture             5  .......  SAP                SAO
 (containing Sodium hydroxide).
Sodium acetate solution...................       34  .......  SAN                AKP
Sodium alkyl sulfonate solution...........       43  .......  SSU                ...............................
Sodium alkyl (C14-C17) sulfonates 60-65%         34  .......  AKA                ...............................
 solution (IMO cargo name), see Alkane
 (C14-C17) sulfonic acid, sodium salt
 solution.
Sodium aluminate solution.................        5  .......  SAU                ...............................
Sodium aluminosillicate slurry............       34  .......  .................  ...............................
Sodium benzoate solution..................       34  .......  SBN                ...............................
Sodium borohydride, Sodium hydroxide              5  .......  SBX                SBH/SBI
 solution.

[[Page 62]]


Sodium carbonate solutions................        5  .......  SCE                ...............................
Sodium chlorate solution..................        0     1, 2  SDD                SDC
Sodium cyanide solution...................        5  .......  SCS                SCN
Sodium dichromate solution................        0     1, 2  SDL                SCR
Sodium dimethyl naphthalene sulfonate       .......  .......  .................  DNS
 solution, see Dimethyl naphthalene
 sulfonic acid, sodium salt solution.
Sodium hydrogen sulfide, Sodium carbonate         0     1, 2  SSS                ...............................
 solution.
Sodium hydrogen sulfite solution..........       43  .......  SHX                ...............................
Sodium hydrosulfide solution..............        5        2  SHR                ...............................
Sodium hydrosulfide, Ammonium sulfide             5        2  SSA                ...............................
 solution.
Sodium hydroxide solution (IMO cargo              5        2  .................  CSS
 name), see Caustic soda solution.
Sodium hypochlorite solution..............        5  .......  .................  SHP/SHQ/(SHC)
Sodium lignosulfonate solution, see also         43  .......  .................  ...............................
 Lignin liquor.
Sodium long chain alkyl salicylate (C13+).       34  .......  SLS
Sodium 2-mercaptobenzothiazol solution....        5  .......  SMB                ...............................
Sodium N-methyl dithio carbamate solution,  .......  .......  .................  MSS
 see Metam sodium solution.
Sodium naphthalene sulfonate solution, see  .......  .......  SNS                NSA
 Naphthalene sulfonic acid, sodium salt
 solution.
Sodium naphthenate solution, see            .......  .......  .................  NTS
 Naphthenic acid, sodium salt solution.
Sodium nitrite solution...................        5  .......  SNI                SNT
Sodium petroleum sulfonate................       33  .......  SPS                ...............................
Sodium polyacrylate solution..............       43        2  .................  ...............................
Sodium salt of Ferric                       .......  .......  STA                FHX
 hydroxyethylethylenediaminetriacetic acid
 solution, see Ferric
 hydroxyethylethylenediaminetriacetic
 acid, trisodium salt solution.
Sodium silicate solution..................       43        2  SSN                SSC
Sodium sulfide, Hydrosulfide solution.....        0     1, 2  .................  SSH/SSI/SSJ
Sodium sulfide solution...................       43  .......  SDR
Sodium sulfite solution...................       43  .......  SUP                SUS
Sodium tartrates, Sodium succinates              43  .......  STM
 solution.
Sodium thiocyanate solution...............        0     1, 2  STS                SCY
Sorbitol solutions........................       20  .......  .................  SBT
Soyabean oil (expoxidized)................       34  .......  .................  OSC/EVO
Stearic acid, see Fatty acids (saturated,   .......  .......  SRA                FAD
 C14+).
Stearyl alcohol...........................       20  .......
Styrene...................................       30  .......  STY                STX
Styrene monomer...........................       30  .......  STY                STX
Sulfohydrocarbon (C3-C88).................       33  .......  SFO
Sulfohydrocarbon, long chain (C18+)               7  .......  SFX
 alkylamine mixture.
Sulfolane.................................       39  .......  SFL                ...............................
Sulfonated polyacrylate solutions.........       43        2
Sulfur....................................        0        1  SXX                ...............................
Sulfuric acid.............................        2        2  SFA                ...............................
Sulfuric acid, spent......................        2  .......  SAC                ...............................
Sulfurized fat (C14-C20)..................       33  .......  SFT                ...............................
Sulfurized polyolefinamide alkene(C28-           33  .......  SPO                ...............................
 C250) amine.
Tall oil..................................       34  .......  OTL                ...............................
Tall oil fatty acid (Resin acids less than       34        2  TOF                ...............................
 20%).
Tall oil fatty acid, barium salt..........        0     1, 2  TOB                ...............................
Tall oil soap (disproportionated) solution       43  .......  TOS                ...............................
Tallow....................................       34        2  TLO                ...............................
Tallow fatty acid.........................       34        2  TFD                ...............................
Tallow fatty alcohol, see Alcohols (C13+).  .......  .......  TFA                ALY
Tallow nitrile............................       37  .......  TAN                ...............................
TAME, see tert-Amyl methyl ether..........  .......  .......  .................  AYE
1,1,2,2-Tetrachloroethane.................       36  .......  TEC                ...............................
Tetrachloroethylene, see Perchloroethylene  .......  .......  TTE                PER
Tetradecanol, see Alcohols (C13+).........  .......  .......  TTN                ALY
Tetradecene, see the olefins entries......  .......  .......  TTD                ...............................
Tetradecylbenzene, see Alkyl(C9+) benzenes       32  .......  TDB                AKB
Tetraethylene glycol......................       40  .......  TTG                ...............................
Tetraethylene glycol methyl ether, see      .......  .......  .................  PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Tetraethylenepentamine....................        7        2  TTP                ...............................
Tetrahydrofuran...........................       41  .......  THF                ...............................
Tetrahydronaphthalene.....................       32  .......  THN                ...............................
1,2,3,5-Tetramethylbenzene, see             .......  .......  TTB                TTC
 Tetramethylbenzene.
Tetramethylbenzene........................       32  .......  TTC                TTB
Tetrapropylbenzene, see Alkyl(C9+)benzenes  .......  .......  .................  AKB
Tetrasodium salt of EDTA solution, see      .......  .......  .................  EDS
 Ethylenediaminetetraacetic acid,
 tetrasodium salt solution.
Titanium dioxide slurry...................       43  .......  TDS                ...............................
Titanium tetrachloride....................        2  .......  TTT                ...............................

[[Page 63]]


Toluene...................................       32  .......  TOL                ...............................
Toluenediamine............................        9  .......  TDA                ...............................
Toluene diisocyanate......................       12  .......  TDI                ...............................
o-Toluidine...............................        9  .......  TLI                ...............................
Triarylphosphate, see Triisopropylated      .......  .......  TRA                TPL
 phenyl phosphates.
Tributyl phosphate........................       34  .......  TBP                ...............................
1,2,4-Trichlorobenzene....................       36  .......  TCB                ...............................
1,1,1-Trichloroethane.....................       36        2  TCE                ...............................
1,1,2-Trichloroethane.....................       36  .......  TCM                ...............................
Trichloroethylene.........................       36        2  TCL                ...............................
1,2,3-Trichloropropane....................       36        2  TCN                ...............................
1,1,2-Trichloro-1,2,2-trifluoroethane.....       36  .......  TTF                ...............................
Tricresyl phosphate.......................       34  .......  .................  TCO/TCP
Tridecane, see n-Alkanes (C10+)...........  .......  .......  TRD                ALJ
Tridecanoic acid..........................       34  .......  TDO
Tridecanol, see Alcohols (C13+)...........  .......  .......  TDN                ALY
Tridecene, see Olefins (C13+).............  .......  .......  TDC                ...............................
Tridecyl acetate..........................       34  .......  TAE
Tridecylbenzene, see Alkyl(C9+) benzenes..       32        2  TRB                AKB
Triethanolamine...........................        8        2  TEA                ...............................
Triethylamine.............................        7  .......  TEN                ...............................
Triethylbenzene...........................       32        2  TEB                ...............................
Triethylene glycol........................       40  .......  TEG                ...............................
Triethylene glycol butyl ether, see Poly(2- .......  .......  .................  PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Triethylene glycol butyl ether mixture....       40  .......  .................  ...............................
Triethylene glycol dibenzoate.............       34  .......  TGB                ...............................
Triethylene glycol di-(2-ethylbutyrate)...       34  .......  TGD                ...............................
Triethylene glycol ether mixture..........       40  .......  .................  ...............................
Triethylene glycol ethyl ether, see Poly(2- .......  .......  TGE                PAG
 8)alkylene glycol monoalkyl(C1-C6) ether.
Triethylene glycol methyl ether, see        .......  .......  TGY                PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Triethylenetetramine......................        7        2  TET                ...............................
Triethyl phosphate........................       34  .......  TPS                ...............................
Triethyl phosphite........................       34        2  TPI                ...............................
Triisobutylene............................       30  .......  TIB                ...............................
Triisooctyl trimellitate..................       34  .......  .................  ...............................
Triisopropanolamine.......................        8  .......  TIP                ...............................
Triisopropanolamine salt of 2,4-            .......  .......  .................  DTI
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Triisopropanolamine salt solution.
Triisopropylated phenyl phosphates........       34  .......  TPL
Trimethylacetic acid......................        4  .......  TAA                ...............................
Trimethylamine solution...................        7  .......  TMT
Trimethylbenzene..........................       32        2  TRE                TME/TMB/TMD
Trimethylhexamethylenediamine (2,2,4- and         7  .......  THA                ...............................
 2,4,4-).
Trimethylhexamethylene diisocyanate (2,2,4-      12  .......  THI                ...............................
  and 2,4,4-).
Trimethyl nonanol, see Dodecanol..........  .......  .......  .................  DDN
Trimethylol propane polyethoxylate........       20  .......  TPR                ...............................
2,2,4-Trimethyl-1,3-pentanediol                  34  .......  TMQ                ...............................
 diisobutyrate.
2,2,4-Trimethyl-1,3-pentanediol-1-               34  .......  TMP                ...............................
 isobutyrate.
2,2,4-Trimethyl-3-pentanol-1-isobutyrate..       34  .......  .................  ...............................
Trimethyl phosphite.......................       34        2  TPP                ...............................
1,3,5-Trioxane............................       41        2  TRO                ...............................
Triphenylborane, Caustic soda solution....        5  .......  TPB
Tripropylene, see Propylene trimer........  .......  .......  .................  PTR
Tripropylene glycol.......................       40  .......  TGC                ...............................
Tripropylene glycol methyl ether, see       .......  .......  TGM                PAG
 Poly(2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Trisodium nitrilotriacetate...............       34  .......  .................  ...............................
Trisodium phosphate solution..............        5  .......  TSP
Trisodium salt of N-                        .......  .......  .................  HET
 (Hydroxyethyl)ethylenediaminetriacetic
 acid solution, see N-
 (Hydroxyethyl)ethylenediaminetriacetic
 acid, trisodium salt solution.
Trixylyl phosphate (IMO cargo name), see         34  .......  .................  TRP
 Trixylenyl phosphate.
Trixylenyl phosphate......................       34  .......  TRP                ...............................
Turpentine................................       30  .......  TPT                ...............................
Ucarsol CR Solvent 302 SG.................        8  .......  UCS                ...............................
Undecanoic acid...........................        4  .......  UDA                ...............................
Undecanol, see Undecyl alcohol............  .......  .......  .................  UND
Undecene..................................       30  .......  UDC                ...............................
Undecyl alcohol...........................       20  .......  UND                ...............................
Undecylbenzene, see Alkyl(C9+) benzenes...  .......  .......  UDB                AKB

[[Page 64]]


Urea, Ammonium mono- and di-hydrogen              0        1  UPX                ...............................
 phosphate, Potassium chloride solution.
Urea, Ammonium nitrate solution                   6  .......  UAS                ...............................
 (containing Ammonia).
Urea, Ammonium nitrate solution (not             43  .......  UAT                ANU
 containing Ammonia).
Urea, Ammonium phosphate solution.........       43  .......  UAP                ...............................
Urea solution.............................       43  .......  .................  URE
Valeraldehyde.............................       19  .......  VAK                IVA/VAL
Vanillin black liquor.....................        5  .......  VBL                ...............................
Vegetable oils, n.o.s.....................       34  .......  VEO
    Including:                              .......  .......  .................  ...............................
    Beechnut oil                            .......  .......  .................  ...............................
    Castor oil                              .......  .......  .................  ...............................
    Cocoa butter                            .......  .......  .................  ...............................
    Coconut oil                             .......  .......  .................  ...............................
    Corn oil                                .......  .......  .................  ...............................
    Cottonseed oil                          .......  .......  .................  ...............................
    Groundnut oil                           .......  .......  .................  ...............................
    Hazelnut oil                            .......  .......  .................  ...............................
    Linseed oil                             .......  .......  .................  ...............................
    Nutmeg butter                           .......  .......  .................  ...............................
    Oiticica oil                            .......  .......  .................  ...............................
    Olive oil                               .......  .......  .................  ...............................
    Palm kernel oil                         .......  .......  .................  ...............................
    Palm oil                                .......  .......  .................  ...............................
    Peel oil (oranges and lemons)           .......  .......  .................  ...............................
    Perilla oil                             .......  .......  .................  ...............................
    Poppy oil                               .......  .......  .................  ...............................
    Raisin seed oil                         .......  .......  .................  ...............................
    Rapeseed oil                            .......  .......  .................  ...............................
    Rice bran oil                           .......  .......  .................  ...............................
    Safflower oil                           .......  .......  .................  ...............................
    Salad oil                               .......  .......  .................  ...............................
    Sesame oil                              .......  .......  .................  ...............................
    Soya bean oil                           .......  .......  .................  ...............................
    Sunflower seed oil                      .......  .......  .................  ...............................
    Tucum oil                               .......  .......  .................  ...............................
    Tung oil                                .......  .......  .................  ...............................
    Walnut oil                              .......  .......  .................  ...............................
Vegetable acid oils and distillates,             34  .......  VAO
 n.o.s..
    Including:                              .......  .......  .................  ...............................
    Corn acid oil                           .......  .......  .................  ...............................
    Cottonseed acid oil                     .......  .......  .................  ...............................
    Dark mixed acid oil                     .......  .......  .................  ...............................
    Groundnut acid oil                      .......  .......  .................  ...............................
    Mixed acid oil                          .......  .......  .................  ...............................
    Mixed general acid oil                  .......  .......  .................  ...............................
    Mixed hard acid oil                     .......  .......  .................  ...............................
    Mixed soft acid oil                     .......  .......  .................  ...............................
    Rapeseed acid oil                       .......  .......  .................  ...............................
    Safflower acid oil                      .......  .......  .................  ...............................
    Soya acid oil                           .......  .......  .................  ...............................
    Sunflower seed acid oil                 .......  .......  .................  ...............................
Vegetable protein solution................       43  .......  .................  ...............................
Vinyl acetate.............................       13        1  VAM                ...............................
Vinyl chloride............................       35  .......  VCM                ...............................
Vinyl ethyl ether.........................       13        1  VEE                ...............................
Vinylidene chloride.......................       35  .......  VCI                ...............................
Vinyl neodecanate.........................       13        1  VND                ...............................
Vinyltoluene..............................       13        1  VNT                ...............................
Water.....................................       43  .......  .................  ...............................
Waxes:....................................  .......  .......  WAX                ...............................
    Candelilla............................       34  .......  WDC                ...............................
    Carnauba..............................       34  .......  WCA                ...............................
    Paraffin..............................       31        1  WPF                ...............................
    Petroleum.............................       33  .......  .................  ...............................
Wine, see Alcoholic beverages.............  .......  .......  .................  ...............................
White spirit (low (15-20%) aromatic)......       33  .......  WSL                WSP
Xylene....................................       32  .......  XLX                XLM/XLO/XLP
Xylenes, Ethylbenzene mixture.............       32  .......  XEB                ...............................
Xylenols..................................       21  .......  XYL                ...............................
Zinc alkaryl dithiophosphate (C7-C16).....       34  .......  ZAD
Zinc alkenyl carboxamide..................       10  .......  ZAA                ...............................
Zinc alkyl dithiophosphate (C3-C14).......       34  .......  ZAP

[[Page 65]]


Zinc bromide, Calcium bromide solution,     .......  .......  .................  DZB
 see Drilling brine (containing Zinc
 salts).
----------------------------------------------------------------------------------------------------------------
1. Because of very high reactivity or unusual conditions of carriage or potential compatibility problems, this
  commodity is not assigned to a specific group in the Compatibility Chart. For additional compatibility
  information, contact Commandant (CG-ENG-5), Attn: Hazardous Materials Division, U.S. Coast Guard Stop 7509,
  2703 Martin Luther King Jr. Avenue SE., Washington, DC 20593-7509. Telephone 202-372-1420 or email
  [email protected].
2. See Appendix I--Exceptions to the Chart.


[USCG 2000-7079, 65 FR 67162, Nov. 8, 2000, as amended by USCG-2006-
25697, 71 FR 55746, Sept. 25, 2006; USCG-2008-0906, 73 FR 56510, Sept.
29, 2008; USCG-2009-0702, 74 FR 49236, Sept. 25, 2009; USCG-2010-0759,
75 FR 60003, Sept. 29, 2010; USCG-2012-0832, 77 FR 59783, Oct. 1, 2012;
USCG-2013-0671, 78 FR 60155, Sept. 30, 2013]

    Effective Date Note: By USCG-2013-0423, 78 FR 50162, Aug. 16, 2013,
Table I to part 150 was revised, effective Sept. 16, 2013. At 78 FR
56837, Sept. 16, 2013, the effectiveness was delayed until Jan. 16,
2014. At 79 FR 2106, Jan. 13, 2014, the effectiveness was delayed until
Jan. 16, 2015. For the convenience of the user, the revised text is set
forth as follows:



         Sec. Table I to Part 150--Alphabetical List of Cargoes

----------------------------------------------------------------------------------------------------------------
                                            Group
              Chemical name                  No.    Footnote      CHRIS Code           Related CHRIS Codes
----------------------------------------------------------------------------------------------------------------
Acetaldehyde.............................       19  ........  AAD
Acetic acid..............................        4         2  AAC
Acetic anhydride.........................       11         2  ACA
Acetochlor...............................       10  ........  ACG
Acetone..................................       18         2  ACT
Acetone cyanohydrin......................        0      1, 2  ACY
Acetonitrile.............................       37  ........  ATN
Acetonitrile (low purity grade) *........       37         3  AIL
Acetophenone.............................       18  ........  ACP
Acid oil mixture from soybean, corn             34         3  .................  AOM.
 (maize) and sunflower oil refining, see
 Oil, misc: Acid mixture from soybean,
 corn (maize) and sunflower oil refining
 *.
Acrolein.................................       19         2  ARL
Acrylamide solution (50% or less) *......       10         3  AAM                AAO.
Acrylic acid.............................        4         2  ACR
Acrylic acid/ethenesulfonic acid                30         3  APG
 copolymer with phosphonate groups,
 sodium salt solution *.
Acrylonitrile............................       15         2  ACN
Acrylonitrile-Styrene copolymer                 20  ........  ALE
 dispersion in Polyether polyol.
Adiponitrile.............................       37  ........  ADN
Alachlor technical (90% or more) *.......       33         3  ALH                ALI.
Alcohol (C12-C13, branched and linear)          41         3  ABL
 poly (4-8) propoxy sulfates, sodium salt
 25-30% solution *.
Alcohol (C9-C11) poly (2.5-9) ethoxylates       40         3  AET                ALY/APV/APW.
 *.
Alcohol (C6-C17) (secondary) poly (3-6)         40         3  AEA                AEB.
 ethoxylates *.
Alcohol (C6-C17) (secondary) poly (7-12)        40         3  AEB                AEA.
 ethoxylates *.
Alcohol (C12-C16) poly (1-6) ethoxylates        40         3  AED                AET/ALY/APW.
 *.
Alcohol (C12-C16) poly (7-19) ethoxylates       40         3  APV                AET/ALY/APV.
 *.
Alcohol (C12-C16) poly (20+) ethoxylates        40         3  APW                AET/ALY.
 *.
Alcoholic beverages, n.o.s.*.............       20         3  ABV
Alcohols (C13+)..........................       20  ........  ALY                ASY/AYK.
    Including:
        Oleyl alcohol (octadecenol)......
        Pentadecanol.....................
        Tallow alcohol...................
        Tetradecanol.....................
        Tridecanol.......................
Alcohol polyethoxylates..................       20  ........  .................  AEA/AEB/AED/AET/APV/APW.
Alcohol polyethoxylates, secondary.......       20  ........  .................  AEA/AEB.
Alcohol (C12-C15) poly (. . .)                  20
 ethoxylate, see Alcohol (C12-C16) poly
 (. . .) ethoxylate.
Alcohols (C12+), primary, linear *.......       20         3  ASY                ALR/AYK/AYL.
Alcohols (C8-C11), primary, linear and          20  ........  ALR                AYK/AYL.
 essentially linear.
Alcohols (C12-C13), primary, linear and         20         3  AYK                ALR/ASY/AYL.
 essentially linear *.
Alcohols (C14-C18), primary, linear and         20         3  AYL                ALR/ASY/AYK.
 essentially linear *.
Alkanes (C6-C9)..........................       31  ........  ALK
    Including:
        Heptanes.........................

[[Page 66]]


        Hexanes..........................
        Nonanes..........................
        Octanes..........................
iso- & cyclo-Alkanes (C10-C11)...........       31  ........  AKI
iso- & cyclo-Alkanes (C12+)..............       31  ........  AKJ
Alkanes (C10-C26), linear and branched          31         3  ABD
 (flash point 60 [deg]C) *.
n-Alkanes (C10+) (all isomers)...........       31  ........  ALV                ALJ.
    Including:
        Decanes..........................
        Dodecanes........................
        Heptadecanes.....................
        Tridecanes.......................
        Undecanes........................
Alkane (C14-C17) sulfonic acid, sodium          34  ........  AKA                SAA (AKE/SSU).
 salt solutions, see Sodium alkyl (C14-
 C17) sulfonates (60-65% solution).
Alkaryl polyethers (C9-C20)..............       41  ........  AKP
Alkenoic acid, polyhydroxy ester borated         0      1, 3  AAY
 *.
Alkenyl(C11+)amide.......................       10  ........  AKM
Alkenyl (C8+) amine, Alkenyl (C12+) acid
 ester mixture.
Alkenyl (C16-C20) succinic anhydride.....       11  ........  AAH
Alkyl acrylate-Vinyl pyridine copolymer         32  ........  AAP
 in Toluene.
Alkyl amine (C17+).......................        7  ........  AKY
Alkylaryl phosphate mixtures (more than         34  ........  ADP
 40% Diphenyl tolyl phosphate, less than
 0.02% ortho-isomers).
Alkylated (C4-C9) hindered phenols *.....       21         3  AYO
Alkyl(C3-C4)benzenes.....................       32  ........  AKC
    Including:
        Butylbenzenes....................
        Cumene...........................
        Propylbenzenes...................
Alkyl(C5-C8)benzenes.....................       32  ........  AKD.
    Including:
        Amylbenzenes.....................
        Heptylbenzenes...................
        Hexylbenzenes....................
        Octylbenzenes....................
Alkyl(C9+)benzenes.......................       32  ........  AKB
    Including:
        Decylbenzenes....................
        Dodecylbenzenes..................
        Nonylbenzenes....................
        Tetradecylbenzenes...............
        Tetrapropylbenzenes..............
        Tridecylbenzenes.................
        Undecylbenzenes..................
Alkylbenzene, Alkylindane, Alkylindene          32  ........  AIH
 mixture (each C12-C17).
Alkyl benzene distillation bottoms *.....        0      1, 3  ABB
Alkylbenzene mixtures (containing at            32         3  AZT
 least 50% of Toluene) *.
Alkyl (C11-C17) benzene sulfonic acid *..        0      1, 3  ABN                ABS/ABQ.
Alkylbenzenesulfonic acid (less than 4%).        0      1, 2  ABQ                ABS/ABN.
Alkylbenzene sulfonic acid, sodium salt         33  ........  ABT
 solution.
Alkyl (C12+) dimethylamine *.............        7         3  ADM
Alkyl dithiocarbamate (C19-C35) *........       34         3  ADB
Alkyl dithiothiadiazole (C6-C24).........       33  ........  ADT
Alkyl polyglucoside solution, see               43  ........  AGD                AGL/AGM AGN/AGO/AGP.
 individual polyglucoside solution.
Alkyl ester copolymer (C4-C20)...........       34  ........  AES                AEQ.
Alkyl (C8-C10)/(C12-C14):(40% or less/60%       43         3  AGN                AGD/AGL AGM/AGO/AGP.
 or more) polyglucoside solution (55% or
 less) *.
Alkyl (C8-C10)/(C12-C14):(50%/50%)              43         3  AGO                AGD/AGL/AGN/AGP.
 polyglucoside solution (55% or less) *.
Alkyl (C8-C10)/(C12-C14):(60% or more/40%       43         3  AGP                AGD/AGL/AGM/AGN/AGO.
 or less) polyglucoside solution (55% or
 less) *.
Alkyl(C7-C9) nitrates....................       34         2  AKN                ONE.
Alkyl (C4-C9) phenols....................       21  ........  AYI                BLT/BTP/NNP/OPH.
Alkyl(C7-C11) phenol poly(4-12)ethoxylate       40  ........  APN                NPE.
Alkyl (C8-C40) phenol sulfide............       34  ........  AKS
Alkyl phenol sulfide (C8-C40), see Alkyl        34  ........  .................  AKS.
 (C8-C40) phenol sulfide.
Alkyl(C8-C9) phenylamine in aromatic             9  ........  ALP
 solvents.
Alkyl(C9-C15) phenyl propoxylate.........       40  ........  AXL
Alkyl (C8-C10) polyglucoside solution           43         3  AGL                AGD/AGM/AGN/AGO/AGP.
 (65% or less) *.
Alkyl (C12-C14) polyglucoside solution          43         3  AGM                AGD/AGL/AGN/AGO/AGP.
 (55% or less) *.

[[Page 67]]


Alkyl (C12-C16) propoxyamine ethoxylate *        8         3  AXE                LPE.
Alkyl ester copolymer in mineral oil.....       34  ........  AEQ                AES.
Alkyl phthalates, see individual                34  ........  AYS
 phthalates.
Alkyl(C10-C20), saturated and unsaturated       34  ........  AKL
 phosphite.
Alkyl succinic anhydride.................       11  ........  AUA
Alkyl sulfonic acid ester of phenol......       34  ........  AKH
Alkyl (C18+) toluenes *..................       32         3  AUS                AYL.
Alkyl toluene............................       32  ........  AYL                AUS.
Alkyl (C18-C28) toluenesulfonic acid *...        0      1, 3  AUU
Alkyl (C18-C28) toluenesulfonic acid,           34         3  AUB
 Calcium salts, borated *.
Alkyl (C18-C28) toluenesulfonic acid,           33         3  AUL
 Calcium salts, low overbase *.
Alkyl (C18-C28) toluenesulfonic acid,           33         3  AUC
 Calcium salts, high overbase *.
Allyl alcohol............................       15         2  ALA
Allyl chloride...........................       15  ........  ALC
Aluminum chloride, Hydrochloric acid             0         1  AHS                AHG.
 solution, see ``Aluminum chloride/
 Hydrogen chloride solution''.
Aluminum chloride/Hydrogen chloride              0       1,3  AHG                AHS.
 solution *.
Aluminum hydroxide, sodium hydroxide,           43         3  AHN
 sodium carbonate solution (40% or less)
 *.
Aluminum sulfate solution................       43         2  ASX                ALM.
Amine C-6, morpholine process residue....        9  ........  AOI
2-(2-Aminoethoxy)ethanol.................        8  ........  AEX
Aminoethyldiethanolamine/                        8  ........  ADY
 Aminoethylethanolamine solution.
Aminoethylethanolamine...................        8  ........  AEE
N-Aminoethylpiperazine...................        7  ........  AEP
2-Amino-2-hydroxymethyl-1,3-propanediol         43  ........  AHL
 solution.
2-Amino-2-methyl-1-propanol..............        8  ........  APZ                APQ/APR.
Ammonia, anhydrous.......................        6  ........  AMA
Ammonia, aqueous (28% or less Ammonia),          6  ........  .................  AMH.
 see Ammonium hydroxide.
Ammonium bisulfite solution (70% or less)       43         2  ABX                ASU.
Ammonium chloride solution (less than           43         3  AIS                AMC.
 25%) *.
Ammonium hydrogen phosphate solution.....        0         1  AMI
Ammonium hydroxide (28% or less Ammonia).        6  ........  AMH
Ammonium lignosulfonate solution, see           43  ........  ALG                LNL.
 also Lignin liquor.
Ammonium nitrate solution (93% or less)..        0         1  ANW                AMN/AND/ANR.
Ammonium nitrate solution (45% or less)..        0         1  AND                AMN/ANR/ANW.
Ammonium nitrate/Urea solution                   6  ........  .................  UAS (ANU/UAT/UAU/UAV).
 (containing Ammonia), see Urea/Ammonium
 nitrate solution (containing more than
 2% Ammonia).
Ammonium nitrate/Urea solution                   6  ........  .................  UAT (ANU/UAS/UAU/UAV).
 (containing less than 2% free Ammonia),
 see Urea/Ammonium nitrate solution
 (containing less than 2% free Ammonia).
Ammonium nitrate/Urea solution (not              6  ........  .................  UAU (ANU/UAS/UAT/UAV).
 containing Ammonia), see Urea/Ammonium
 nitrate solution (containing less than
 1% Ammonia).
Ammonium phosphate/Urea solution, see           43  ........  .................  UAP (APP/URE).
 Urea/Ammonium phosphate solution.
Ammonium polyphosphate solution..........       43  ........  AMO
Ammonium sulfate solution................       43  ........  ASW                AME/AMS.
Ammonium sulfate solution (20% or less)..       43  ........  AME                AMS/ASW.
Ammonium sulfide solution (45% or less *)        5         3  ASS                ASF.
Ammonium thiocyanate/Ammonium thiosulfate        0         1  ACV                ACS.
 solution.
Ammonium thiosulfate solution (60% or           43         3  ATV                ATF.
 less *).
Amyl acetate (all isomers *).............       34         3  AEC                IAT/AML/AAS/AYA.
Amyl acid phosphate......................       34  ........  AIA
n *-Amyl alcohol.........................       20         3  AAN                AAI/AAL/APM/ASE/IAA.
Amyl alcohol, primary *..................       20         3  APM                AAI/AAL/ANN/APM/IAA.
sec-Amyl alcohol *.......................       20         3  ASE                AAI/AAL/ANN/APM/IAA.
tert-Amyl alcohol *......................       20         3  AAL                AAI/APM/ASE/IAA.
Amylene, see Pentene (all isomers).......       30  ........  AMW                PTX (AMX/AMZ/PTE).
tert-Amylenes, see Pentene...............       30  ........  AMZ                PTX (AMW).
tert-Amyl methyl ether...................       41  ........  AYE
Amyl methyl ketone, see Methyl amyl             18  ........  AMJ                MAK (AMK).
 ketone.
Aniline..................................        9  ........  ANL
Animal and Fish oils, n.o.s..............       34  ........  AFN
    Including:
        Cod liver oil....................
        Lanolin..........................
        Neatsfoot oil....................
        Pilchard oil.....................
        Sperm oil........................
Animal and Fish acid oils and                   34  ........  AFA
 distillates, n.o.s..

[[Page 68]]


    Including:
        Animal acid oil..................
        Fish acid oil....................
        Lard acid oil....................
        Mixed acid oil...................
        Mixed general acid oil...........
        Mixed hard acid oil..............
        Mixed soft acid oil..............
Anthracene oil (Coal tar fraction), see         33  ........  AHO                COR.
 Coal tar.
Apple juice..............................       43  ........  APJ
Argon, liquefied.........................        0         1  ARG
Aryl polyolefins (C11-C50)...............       32  ........  AYF
Asphalt..................................       33  ........  ASP                ACU.
Asphalt blending stocks, roofers flux....       33  ........  ARF
Asphalt blending stocks, straight run           33  ........  ASR
 residue.
Asphalt emulsion.........................       33  ........  ASQ
Asphalt, Kerosene, and other components..       33  ........  AKO
Aviation alkylates (C8 paraffins and iso-       31         3  AVA                GAK/GAV.
 paraffins BPT 95-120 [deg]C *).
Barium long-chain (C11-C50) alkaryl             34  ........  BCA
 sulfonate.
Barium long- chain alkyl(C8-C14)phenate         34  ........  BCH
 sulfide.
Behenyl alcohol..........................       20  ........  BHY
Benzene..................................       32         2  BNZ                BHA/BHB/PYG.
Benzene and mixtures having 10% Benzene         32  ........  BHB                BHA/BNZ/PYG.
 or more.
Benzene hydrocarbon mixtures (containing        32  ........  BHA                BHB/BNZ/PYG.
 Acetylenes) (having 10% Benzene or more).
Benzene sulfonyl chloride................        0      1, 2  BSC
Benzene/Toluene/Xylene mixtures (having         32  ........  BTX                BHB/BNZ/PYG/TOL/XLX/XLM/XLO/
 10% Benzene or more).                                                            XLP.
Benzenetricarboxylic acid, trioctyl ester       34  ........  BCE
Benzyl acetate...........................       34  ........  BZE
Benzyl alcohol...........................       21  ........  BAL
Benzyl chloride..........................       36  ........  BCL
Bio-fuel blends of Diesel/gas oil and           33         3  BIF                BIG/BIH/BII/BIJ/BIK.
 Alkanes (C10-C26), linear and branched
 with a flash point 60 [deg]C
 (25% but <99% by volume) *.
Bio-fuel blends of Diesel/gas oil and           33         3  BIG                BIF/BIH/BII/BIJ/BIK.
 Alkanes (C10-C26), linear and branched
 with a flash point 60 [deg]C
 (25% but <99% by volume) *.
Bio-fuel blends of Diesel/gas oil and           34         3  BIH                BIF/BIG/BII/BIJ/BIK.
 FAME (25% but <99% by volume)
 *.
Bio-fuel blends of Diesel/gas oil and           34         3  BII                BIF/BIG/BIH/BIJ/BIK.
 vegetable oil (25% but <99%
 by volume) *.
Bio-fuel blends of Gasoline and Ethyl           20         3  BIJ                BIF/BIG/BIH/BII/BIK.
 alcohol (25% but <99% by
 volume) *.
Boronated Calcium sulfonate..............       34  ........  BCU
Brake fluid base mix: Poly(2-8)alkylene         20         3  BFY
 (C2-C3) glycols/Polyalkylene (C2-C10)
 glycols monoalkyl (C1-C4) ethers and
 their borate esters *.
Brominated Epoxy Resin in Acetone........       41  ........  BER
Bromochloromethane.......................       36  ........  BCM
Butadiene (all isomers)..................       30  ........  BDI
Butadiene/Butylene mixtures (containing         30  ........  BBM                BBX/BDI/BTN/IBL.
 Acetylenes).
Butane (all isomers).....................       31  ........  BMX                IBT/BUT.
Butane/Propane mixture...................       31  ........  BUP                LPG
1,4-Butanediol, see Butylene glycol......       20  ........  BDO                BUG.
2-Butanone, see Methyl ethyl ketone......       18  ........  .................  MEK.
Butene, see Butylene.....................  .......  ........  .................  BUT/IBL.
Butene oligomer..........................       30  ........  BOL
Butyl acetate (all isomers *)............       34         3  BAX                BCN/BTA/BYA/IBA.
Butyl acrylate (all isomers *)...........       14         3  BAR                BAI/BTC.
Butyl alcohol (iso-, n-, sec-, tert-),          20         2  .................  BAN/BAS/BAT/BAY/IAL.
 see Butyl alcohol (all isomers).
Butyl alcohol (all isomers *)............       20      2, 3  BAY                BAN/BAS/BAT/IAL.
Butylamine (all isomers *)...............        7         3  BTY                BAM/BTL/BUA/IAM.
Butylbenzene (all isomers *), see               32         3  BBE                AKC.
 Alkyl(C3-C4)benzenes.
Butyl benzyl phthalate...................       34  ........  BPH
Butyl butyrate (all isomers *)...........       34         3  BBA                BIB/BUB.
Butyl/Decyl/Cetyl/Eicosyl methacrylate          14         3  DER                BMH/BMI/BMN/CEM.
 mixture *.
Butylenes (all isomers)..................       30  ........  BTN                IBL.
n *-Butyl ether..........................       41  ........  BTE
Butylene glycol..........................       20         2  BUG                BDO.
1,2-Butylene oxide.......................       16  ........  BTO
n-Butyl ether............................       41         3  BTE
n-Butyl formate..........................       34  ........  BFN                BFI/BFO.
Butyl heptyl ketone......................       18  ........  BHK
Butyl methacrylate.......................       14  ........  BMH                BMI/BMN.
Butyl methacrylate, Decyl methacrylate,         34  ........  .................  DER (BMH/BMI/BMN/CEM).
 Cetyl-Eicosyl methacrylate mixture, see
 Butyl/Decyl/Cetyl/Eicosyl methacrylate.

[[Page 69]]


Butyl methyl ketone, see Methyl butyl           18  ........  .................  MBJ (MBK/MIK).
 ketone.
n-Butyl propionate.......................       34  ........  BPN
Butyl stearate...........................       34  ........  BST
Butyl toluene............................       32  ........  BUE
Butyraldehyde (all isomers *)............       19         3  BAE                BAD/BTR.
Butyric acid.............................        4  ........  BRA                IBR.
gamma-Butyrolactone......................        0      1, 2  BLA
Calcium alkaryl sulfonate (C11-C50), see        34         3  CAE                CAY.
 Calcium long-chain alkaryl sulfonate
 (C11-C50) *.
Calcium alkyl(C9)phenol sulfide,                34  ........  CPX
 polyolefin phosphorosulfide mixture.
Calcium alkyl (C10-C28) salicylate *.....       34         3  CAJ
Calcium alkyl salicylate, see Calcium           34  ........  .................  CAJ/CAK/CAZ.
 long-chain alkyl salicylate (C13+),
 Calcium long-chain alkyl (C18-C28)
 salicylate, or Calcium alkyl (C10-C28)
 salicylate.
Calcium bromide solution, see Drilling          43  ........  CBI                DRS.
 brines.
Calcium bromide/Zinc bromide solution,          43  ........  .................  DZB.
 see Drilling brine (containing Zinc
 salts).
Calcium carbonate slurry.................       34  ........  CSR
Calcium chloride solution................       43  ........  CCS                CLC.
Calcium hydroxide slurry.................        5  ........  COH                CAH.
Calcium hypochlorite solution (15% or            5         3  CHU                CHY/CHZ.
 less *).
Calcium hypochlorite solution (more than         5         3  CHZ                CHU/CHY.
 15% *).
Calcium lignosulfonate solution, see also       43  ........  CLL                LNL.
 Lignin liquor.
Calcium long-chain alkaryl sulfonate (C11-      34  ........  CAY
 C50).
Calcium long-chain alkyl (C5-C10 *)             34         3  CAU                CAN/CAQ/CAV/CAW.
 phenate.
Calcium long-chain alkyl (C5-C20) phenate       34  ........  CAV                CAN/CAQ/CAU/CAW.
Calcium long-chain alkyl (C11-C40)              34         3  CAW                CAN/CAQ/CAU/CAV.
 phenate *.
Calcium long-chain alkyl (C8-C40)               34  ........  CAQ                CAU/CAV (CAN/CAW).
 phenate, see Calcium long-chain alkyl
 (C5-C10) phenate or Calcium long-chain
 alkyl (C11-C40) phenate.
Calcium long-chain alkyl phenate sulfide        34  ........  CPI
 (C8-C40).
Calcium long-chain alkyl phenolic amine          9  ........  CPQ
 (C8-C40).
Calcium long-chain alkyl salicylate             34  ........  CAK                CAJ/CAZ.
 (C13+).
Calcium long-chain alkyl (C18-C28)              34         3  CAJ
 salicylate *.
Calcium nitrate solutions (50% or less *)       34         3  CNU                CNT.
Calcium nitrate/Magnesium nitrate/              34  ........  CLM                CNT/CNU/MGN/MGO/PCS/PCU/PSD.
 Potassium chloride solution.
Calcium salts of fatty acids.............       34  ........  CFF
Calcium stearate.........................       34  ........  CSE
Calcium sulfonate/Calcium carbonate/            33  ........  CSH
 Hydrocarbon solvent mixture.
Camelina oil *...........................       34         3  CEL
Camphor oil (light)......................       18  ........  CPO
Canola oil, see Oil, edible: Repeseed,          34  ........  .................  ORO (ORP).
 (low erucic acid containing less than 4%
 free fatty acids).
epsilon-Caprolactam (molten or aqueous          22         3  CLU                CLS.
 solutions) *.
Caramel solution.........................       43  ........  CML
Carbolic oil.............................       21  ........  CBO
Carbon dioxide, liquefied................        0         1  CDO                CDH/CDQ.
Carbon dioxide (high purity).............        0         1  CDH                CDO/CDQ.
Carbon dioxide (reclaimed quality).......        0         1  CDQ                CDH/CDO.
Carbon disulfide.........................       38  ........  CBB
Carbon tetrachloride.....................       36         2  CBT                CBU.
Cashew nut shell oil (untreated), see            4  ........  .................  OCN.
 Oil, misc: Cashew nut shell (untreated).
Castor oil, see Oil, edible: Castor......       34  ........  .................  OCA (VEO).
Catoxid feedstock........................       36         2  CXF
Caustic potash solution..................        5         2  CPS
Caustic soda solution....................        5         2  CSS
Cesium formate solution *................       34         3  CSM
Cetyl alcohol, see Alcohols (C13+).......       20  ........  .................  ALY (ASY/AYL).
Cetyl/Eicosyl methacrylate mixture.......       14         1  CEM
Cetyl/Stearyl alcohol, see Alcohols             20  ........  .................  ALY (ASY/AYL).
 (C13+).
Chlorinated paraffins (C10-C13)..........       36  ........  CLH                CLG/CLJ/CLQ.
Chlorinated paraffins (C14-C17) (with 50%       36         3  CLJ                CLG/CLH/CLQ.
 Chlorine or more, and less than 1% C13
 or shorter chains *).
Chlorinated paraffins (C14-C17) (with 52%       36  ........  CLQ                CLG/CLH/CLJ.
 Chlorine).
Chlorinated paraffins (C18+) with any           36  ........  CLG                CLH/CLJ.
 level of chlorine.
Chlorine.................................        0         1  CLX
Chloroacetic acid (80% or less *)........        4         3  CHM                CHL/MCA.
Chlorobenzene............................       36  ........  CRB
Chlorodifluoromethane                           36  ........  MCF
 (monochlorodifluoromethane).
2-Chloro-4-ethylamino-6-isopropylamino-5-        0         1  CET
 triazine solution.
Chloroform...............................       36  ........  CRF
Chlorohydrins (crude *)..................       17         3  CHD

[[Page 70]]


4-Chloro-2-methylphenoxyacetic acid,             9  ........  CDM
 dimethylamine salt solution.
o-Chloronitrobenzene.....................       42  ........  CNO                CNP.
1-(4-Chlorophenyl)-4,4-dimethyl pentan-3-       18         2  CDP
 one.
2- or 3-Chloropropionic acid.............        4  ........  CPM                CLA/CLP.
Chlorosulfonic acid......................        0         1  CSA
m-Chlorotoluene *........................       36         3  CTM                CHI/CRN/CTO.
o-Chlorotoluene *........................       36         3  CTO                CHI/CRN/CTM.
p-Chlorotoluene *........................       36         3  CRN                CHI/CTM/CTO.
Chlorotoluenes (mixed isomers) *.........       36         3  CHI                CRN/CTM/CTO.
Choline chloride solution................       20  ........  CCO
Citric acid (70% or less *)..............        4         3  CIS                CIT.
Clay slurry..............................       43  ........  CLY
Coal slurry..............................       43  ........  COG                COA.
Coal tar.................................       33  ........  COR                OCT.
Coal tar crude bases.....................       33  ........  CTB
Coal tar distillate, see Naphtha: Coal          33  ........  CDL                NCT (CTU).
 tar solvent.
Coal tar naphtha solvent, see Naphtha:          33  ........  .................  NCT (CDL/CTU).
 Coal tar solvent.
Coal tar pitch (molten *)................       33         3  CTP
Cocoa butter, see Oil, edible: Cocoa            34  ........  .................  OCB (VEO).
 butter.
Coconut oil, see Oil, edible: Coconut....       34  ........  .................  OCC (VEO).
Coconut oil, fatty acid, see Oil, misc:         34         2  .................  CFA.
 Coconut fatty acid.
Coconut oil, fatty acid methyl ester, see       34         3  .................  OCM.
 Oil, misc: Coconut fatty acid methyl
 ester *.
Copper salt of long-chain (C17+) alkanoic       34  ........  CUS                CFT.
 acid.
Copper salt of long-chain (C3-C16) fatty        34  ........  CFT                CUS.
 acid.
Corn oil, see Oil, edible: Corn..........       34  ........  .................  OCO (VEO).
Cotton seed oil, see Oil, edible: Cotton        34  ........  .................  OCS (VEO).
 seed.
Cottonseed oil, fatty acid...............       34  ........  CFY
Creosote.................................       21         2  CCW                CCT/CWD.
Creosote (coal tar *)....................       21      2, 3  CCT                CCW.
Creosote (wood tar *)....................       21      2, 3  CWD                CCT/CCW.
Cresols (all isomers *)..................       21         3  CRS                CFO/CFP/CRL/CRO/CSC/CSO.
Cresols with less than 5% Phenol, see           21  ........  CFO                CRS (CFP/CRL/CRO/CSO).
 Cresols (all isomers).
Cresols with 5% or more Phenol, see             21  ........  CFP                PHN (CFO/CRL/CRO/CRS/CSO).
 Phenol.
Cresylate spent caustic, see Cresylic            5  ........  CSC                CYD.
 acid, sodium salt solution.
Cresylic acid, dephenolized..............       21  ........  CAD                CRY/CYN.
Cresylic acid, sodium salt solution......        5  ........  CYD                CSC.
Cresylic acid with 5% or more phenol.....       21  ........  CYN                CAD/CRY.
Cresylic acid tar........................       21  ........  CRX
Crotonaldehyde...........................       19         2  CTA
Crude isononylaldehyde, see                     19  ........  .................  INC.
 Isononyldehyde (crude).
Crude isopropanol, see Isoproyl alcohol,        20  ........  .................  IPB (IPA/PAL).
 crude.
Crude piperazine, see Piperazine, crude..        7  ........  .................  PZC (PPZ/PIZ).
Cumene, see Propylbenzene (all isomers)..       32  ........  CUM                AKD (PBY/PBZ).
1,5,9-Cyclododecatriene..................       30  ........  CYT
Cycloheptane.............................       31  ........  CYE
Cyclohexane..............................       31  ........  CHX
Cyclohexanol.............................       20  ........  CHN
Cyclohexanone............................       18         2  CCH
Cyclohexanone/Cyclohexanol mixture.......       18         2  CYX
Cyclohexyl acetate.......................       34  ........  CYC
Cyclohexylamine..........................        7  ........  CHA
1,3-Cyclopentadiene dimer (molten *).....       30         3  CPD                DPT/DPV.
Cyclopentadiene/Styrene/Benzene mixture..       30  ........  CSB
Cyclopentane.............................       31  ........  CYP
Cyclopentene.............................       30  ........  CPE
p *-Cymene...............................       32  ........  CMP
Decahydronaphthalene.....................       33  ........  DHN
Decaldehyde..............................       19  ........  DAY                IDA/DAL.
Decane (all isomers), see n-Alkanes             31  ........  DCC                ALV (ALJ).
 (C10+) (all isomers).
Decanoic acid............................        4  ........  DCO                NEA.
Decene...................................       30  ........  DCE
Decyl acetate............................       34  ........  DYA
Decyl acrylate...........................       14  ........  DAT                IAI/DAR.
Decyl alcohol (all isomers *)............       20      2, 3  DAX                ISA/DAN.
Decyl/Dodecyl/Tetradecyl alcohol mixture        20         3  DYO                DAN/DAX/DDN/ISA.
 *.
Decylbenzene, see Alkyl(C9+) benzenes....       32  ........  DBZ                AKB.
Decyloxytetrahydrothiophene dioxide......        0         1  DHT
Detergent alkylate.......................       32  ........  DKY                AKB/DBZ/DDB/TDB/TRB/UDB.

[[Page 71]]


Dextrose solution, see Glucose solution..       43  ........  DTS                GLU.
Diacetone alcohol........................       20         2  DAA
Dialkyl(C10-C14) benzenes, see Alkyl(C9+)       32  ........  DAB                AKB.
 benzenes.
Dialkyl(C8-C9) diphenylamines............        9  ........  DAQ
Dialkyl(C7-C13) phthalates...............       34  ........  DAH
    Including:
        Di-(2-ethylhexyl) phthalate......
        Diheptyl phthalate...............
        Dihexyl phthalate................
        Diisooctyl phthalate.............
        Diisodecyl phthalate.............
        Diisononyl phthalate.............
        Dinonyl phthalate................
        Dioctyl phthalate................
        Ditridecyl phthalate.............
        Diundecyl phthalate..............
Dialkyl (C9-C10) phthalates, see Dialkyl        34  ........  DLK                DLH (DAP/DHL/DHP/DID/DIE/DIF/
 (C7-C13) phthalates.                                                             DIN/DIO/DIT/DOP/DPA/DTP/DUP).
Dialkyl thiophosphates sodium salts             34         3  DYH
 solution *.
Dibromomethane...........................       36  ........  DBH
Dibutylamine.............................        7  ........  DBA
Dibutyl carbinol, see Nonyl alcohol (all        20  ........  .................  NNS (DBC/NNI/NNN).
 isomers).
Dibutyl hydrogen phosphonate.............       34  ........  DHD
Dibutylphenols...........................       21  ........  DBT                DBV/DBW.
2,6-Di-tert-butylphenol *................       21         3  DBW                DBF/DBT/DBV.
Dibutyl phthalate........................       34  ........  DPA                DIT.
Dibutyl terephthalate *..................       34         3  DYE
Dichlorobenzene (all isomers *)..........       36         3  DBX                DBM/DBO/DBP.
3,4-Dichloro-1-butene....................       36  ........  DCD                DCB.
Dichlorodifluoromethane..................       36  ........  DCF
1,1-Dichloroethane.......................       36         2  DCH
Dichloroethyl ether *....................       41         3  DYR                DEE.
1,6-Dichlorohexane.......................       36  ........  DHX
2,2[min]-Dichloroisopropyl ether.........       41  ........  DCI
Dichloromethane..........................       36         2  DCM
2,4-Dichlorophenol.......................       21  ........  DCP
2,4-Dichlorophenoxyacetic acid/                 43  ........  DDE
 Diethanolamine salt solution.
2,4-Dichlorophenoxyacetic acid/                  0   1, 2, 3  DDA                DAD/DSX.
 Dimethylamine salt solution (70% or
 less) *.
2,4-Dichlorophenoxyacetic acid/                 43         2  DTI
 Triisopropanolamine salt solution.
1,1-Dichloropropane......................       36  ........  DPB                DPC/DPL/DPP/DPX.
1,2-Dichloropropane *....................       36         3  DPP                DPB/DPC/DPL/DPX.
1,3-Dichlorpropane.......................       36  ........  DPC                DPB/DPL/DPP/DPX.
Dichloropropene (all isomers)............       15  ........  DCW                DPF/DPU.
1,3-Dichloropropene......................       15  ........  .................  DCW/DPF.
Dichloropropene/Dichloropropane mixtures.       15  ........  DMX                DCW/DPB/DPC/DPL/DPP/DPU/DPX.
2,2-Dichloropropionic acid...............        4  ........  DCN
Dicyclopentadiene, see 1,3-                     30  ........  DPT                CPD (DPV).
 Cyclopentadiene dimer (molten).
Dicyclopentadiene, Resin Grade, 81-89% *.       30         3  DPV                CPD/DPT.
Diethanolamine...........................        8  ........  DEA
Diethanolamine salt of 2,4-                     43  ........  DZZ                DDE.
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Diethanolamine salt solution.
Diethylamine.............................        7  ........  DEN
Diethylaminoethanol......................        8  ........  DAE
2,6-Diethylaniline.......................        9  ........  DMN                DIY.
Diethylbenzene...........................       32  ........  DEB
Diethylene glycol........................       40         2  DEG
Diethylene glycol butyl ether, see Poly(2-      40  ........  DME                PAG.
 8) alkylene glycol monoalkyl(C1-C6)
 ether.
Diethylene glycol butyl ether acetate,          34  ........  DEM                PAF.
 see Poly(2-8)alkylene glycol
 monoalkyl(C1-C6) ether acetate.
Diethylene glycol dibutyl ether..........       40  ........  DIG
Diethylene glycol diethyl ether..........       40  ........  DGS
Diethylene glycol ethyl ether, see Poly(2-      40  ........  DGE                PAG.
 8)alkylene glycol monoalkyl (C1-C6)
 ether.
Diethylene glycol ethyl ether acetate,          34  ........  DGA                PAF.
 see Poly(2-8)alkylene glycol
 monoalkyl(C1-C6) ether acetates.
Diethylene glycol n-hexyl ether, see            40  ........  DHE                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Diethylene glycol methyl ether, see             40  ........  DGM                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.

[[Page 72]]


Diethylene glycol methyl ether acetate,         34  ........  DGR                PAF.
 see Poly(2-8)alkylene glycol
 monoalkyl(C1-C6) ether acetate.
Diethylene glycol phenyl ether...........       40  ........  DGP
Diethylene glycol phthalate..............       34  ........  DGL
Diethylene glycol propyl ether, see             40  ........  DGO                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Diethylenetriamine.......................        7         2  DET
Diethylenetriaminepentaacetic acid,             43  ........  DYS
 pentasodium salt solution.
Diethylethanolamine, see                         8  ........  .................  DAE.
 Diethylaminoethanol.
Diethyl ether............................        8  ........  EET
Diethyl hexanol, see Decyl alcohol (all         20  ........  .................  DAX.
 isomers).
Di-(2-ethylhexyl) adipate................       34  ........  DEH
Di-(2-ethylhexyl) phosphoric acid........        1  ........  DEP
Di-(2-ethylhexyl) phthalate, see Dialkyl        34  ........  DIE                DAH.
 (C7-C13) phthalate.
Di-(2-ethylhexyl) terephthalate..........       34  ........  DHH
Diethyl phthalate........................       34  ........  DPH
Diethyl sulfate..........................       34  ........  DSU
Diglycidyl ether of Bisphenol A..........       41  ........  BDE
Diglycidyl ether of Bisphenol F..........       41  ........  DGF
Diheptyl phthalate, see Dialkyl (C7-C13)        34  ........  DHP                DAH.
 phthalate.
Di-n-hexyl adipate.......................       34  ........  DHA
Dihexyl phthalate........................       34  ........  DHL
1,4-Dihydro-9,10-dihydroxy anthracene,           5  ........  DDH
 disodium salt solution.
Diisobutylamine..........................        7  ........  DBU
Diisobutyl carbinol, see Nonyl alcohol          20  ........  DBC                NNS.
 (all isomers).
Diisobutylene............................       30  ........  DBL
Diisobutyl ketone........................       18  ........  DIK
Diisobutyl phthalate.....................       34  ........  DIT                DPA.
Diisodecyl phthalate, see Dialkyl (C7-          34  ........  DID                DAH.
 C13) phthalates.
Diisononyl adipate.......................       34  ........  DNY
Diisononyl phthalate, see Dialkyl (C7-          34         2  DIN                DAH.
 C13) phthalates.
Diisooctyl phthalate, see Dialkyl (C7-          34  ........  DIO                DAH/(DIE/DOP).
 C13) phthalate.
Diisopropanolamine.......................        8  ........  DIP
Diisopropylamine.........................        7  ........  DIA                DNA.
Diisopropylbenzene (all isomers).........       32  ........  DIX
Diisopropylnaphthalene...................       32  ........  DII
N,N-Dimethylacetamide....................       10  ........  DAC                DLS.
N,N-Dimethylacetamide solution (40% or          10         3  DLS                DAL.
 less *).
Dimethyl adipate.........................       34  ........  DLA
Dimethylamine............................        7  ........  DMA                DMC/DMG/DMY.
Dimethylamine solution (45% or less *)...        7         3  DMG                DMA/DMC/DMY.
Dimethylamine solution (greater than 45%         7         3  DMY                DMA/DMC/DMG.
 but not greater than 55%) *.
Dimethylamine solution (greater than 55%         7         3  DMC                DMA/DMG/DMY.
 but not greater than 65%) *.
Dimethylamine salt of 4-Chloro-2-                9  ........  .................  CDM.
 methylphenoxyacetic acid solution, see 4-
 Chloro-2-methylphenoxyacetic acid,
 Dimethylamine salt solution.
Dimethylamine salt of 2,4-                       9  ........  DAD                DDA (DSX).
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Dimethylamine salt solution (70% or
 less).
2,6-Dimethylaniline......................        9  ........  DMM                DDL.
Dimethylbenzene, see Xylenes.............       32  ........  .................  XLX/XLM/XLO/XLP.
N,N-Dimethylcyclohexylamine..............        7  ........  DXN
Dimethyl disulfide *.....................        0   1, 2, 3  DSK
Dimethyldodecylamine, see N,N-                   7  ........  .................  DDY.
 Dimethyldodecylamine.
N,N-Dimethyldodecylamine.................        7  ........  DDY
Dimethylethanolamine.....................        8  ........  DMB
Dimethyl ether...........................       41  ........  DIM
Dimethylformamide........................       10  ........  DMF
Dimethyl glutarate.......................       34  ........  DGT
Dimethyl hydrogen phosphite..............       34         2  DPI
Dimethyl octanoic acid...................        4  ........  DMO
Dimethyl phthalate.......................       34  ........  DTL
Dimethylpolysiloxane.....................       34  ........  DMP
2,2-Dimethylpropane-1,3-diol (molten or         20         3  DDI
 solution *).
Dimethyl succinate.......................       34  ........  DSE
Dinitrotoluene (molten *)................       42         3  DNM                DNL/DNU/DTT.
Dinonyl phthalate, see Dialkyl (C7-C13)         34  ........  DIF                DAH.
 phthalates.
Dioctyl phthalate, see Dialkyl (C7-C13)         34  ........  DOP                DAH (DIE/DIO).
 phthalates.
1,4-Dioxane..............................       41  ........  DOX
Dipentene................................       30  ........  DPN
Diphenyl.................................       32  ........  DIL
Diphenylamine (molten)...................        9  ........  DAG                DAM.
Diphenylamine, reaction product with             9  ........  DAK
 2,2,4-trimethylpentene.
Diphenylamines, alkylated................        9  ........  DAJ
Diphenyl/Diphenyl ether mixtures.........       33  ........  DDO

[[Page 73]]


Diphenyl ether...........................       41  ........  DPE
Diphenyl ether/Biphenyl ether mixture,          41  ........  .................  DDO.
 see Diphenyl/Diphenyl ether mixture.
Diphenyl ether/Diphenyl phenyl ether            41  ........  DOB
 mixture.
Diphenylmethane diisocyanate.............       12  ........  DPM
Diphenylol propane-Epichlorohydrin resins        0         1  DPR
Diphenyl oxide, see Diphenyl ether.......       40  ........  .................  DPE.
Di-n-propylamine.........................        7  ........  DNA                DIA.
Dipropylene glycol.......................       40  ........  DPG
Dipropylene glycol butyl ether, see             40  ........  DBG                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Dipropylene glycol dibenzoate............       34  ........  DGY
Dipropylene glycol methyl ether, see Poly       40  ........  DPY                PAG.
 (2-8)alkylene glycol monoalkyl(C1-C6)
 ether.
Distillates, flashed feed stocks.........       33  ........  DFF
Distillates, straight run................       33  ........  DSR
Di-tert-butyl phenol.....................       21  ........  DBF                DBT/DBV/DBW.
2,4-Di-tert-butyl phenol.................       21  ........  DBV                DBF/DBT/DBW.
2,6-Di-tert-butyl phenol.................       21  ........  DBW                DBF/DBT/DBV.
Dithiocarbamate ester (C7-C35)...........       34  ........  DHO
Ditridecyl adipate.......................       34  ........  DTY
Ditridecyl phthalate, see Dialkyl (C7-          34  ........  DTP                DAH.
 C13) phthalate.
Diundecyl phthalate, see Dialkyl (C7-C13)       34  ........  DUP                DAH.
 phthalates.
Dodecane (all isomers), see Alkanes             31  ........  DOF                ALV (ALJ/DOC).
 (C10+) (all isomers).
tert-Dodecanethiol.......................        0      1, 2  DDL                LRM.
Dodecene (all isomers *).................       30         3  DOZ                DDC/DOD.
Dodecanol (all isomers), see Dodecyl            20         2  DDN                LAL.
 alcohol (all isomers).
2-Dodecenylsuccinic acid, dipotassium           34  ........  DSP
 salt solution.
Dodecyl alcohol (all isomers)............       20  ........  DDN                ASK/ASY/LAL.
Dodecylamine/Tetradecylamine mixture.....        7  ........  DTA
Dodecylbenzene, see Alkyl (C9+) benzenes.       32  ........  DDB                AKB.
Dodecyldimethylamine/                            7  ........  DOT
 Tetradecyldimethylamine mixture.
Dodecyl diphenyl ether disulfonate              43  ........  DTA
 solution.
Dodecyl hydroxypropyl sulfide............        0         1  DOH
Dodecyl methacrylate.....................       14  ........  DDM
Dodecyl/Octadecyl methacrylate mixture...       14  ........  DOM                DDM.
Dodecyl/Pentadecyl methacrylate mixture..       14  ........  DDP
Dodecyl phenol...........................       21  ........  DOL
Dodecyl xylene...........................       32  ........  DXY
Drilling brines (containing Calcium,            43  ........  DRL                DRB/DRS.
 Potassium or Sodium salts).
Drilling brines (containing Zinc salts)..       43  ........  DZB                DRB.
Drilling brines, including: Calcium             43         3  .................  DRS/DRL.
 bromide solution, Calcium chloride
 solution and Sodium chloride solution *.
Drilling mud (low toxicity) (if flammable       33  ........  DRO                DRM/DRN/DRP.
 or combustible).
Drilling mud (low toxicity) (if non-            43  ........  DRP                DRM/DRN/DRO.
 flammable or non-combustible).
Epichlorohydrin..........................       17  ........  EPC
Epoxy resin..............................       18  ........  EPN
ETBE, see Ethyl tert-butyl ether.........       40  ........  .................  EBE.
Ethane...................................       31  ........  ETH
Ethanolamine.............................        8  ........  MEA
2-Ethoxyethanol, see Ethylene glycol            40  ........  EEO                EGC (EGE).
 monoalkyl ethers.
2-Ethoxyethyl acetate....................       34         2  EEA                EGA.
Ethoxylated alkyloxy alkyl amine.........        8  ........  ELM
Ethoxylated alcohols, C11-C15, see the          40  ........  .................  AEA/AEB/AED/AET/APV/APW/APX.
 alcohol poylethoxylates.
Ethoxylated long-chain (C16+)                    8  ........  ELA
 alkyloxyalkylamine.
Ethoxylated tallow alkyl amine...........        7  ........  TAY                TAG/TAR.
Ethoxylated tallow amine (95%)        7         3  TAR                TAG/TAY.
 *.
Ethoxylated tallow alkyl amine, glycol           7  ........  TAG                TAR/TAY.
 mixture.
Ethoxy triglycol, see Poly (2-8) alkylene       40  ........  ETG                PAG (ETR/TGE).
 glycol monoalkyl (C1-C6) ether.
Ethoxy triglycol (crude).................       40  ........  ETR
Ethyl acetate............................       34         2  ETA
Ethyl acetoacetate.......................       34  ........  EAA
Ethyl acrylate...........................       14         2  EAC
Ethyl alcohol............................       20         2  EAL
Ethylamine...............................        7         2  EAM                EAN/EAO.
Ethylamine solution (72% or less *)......        7         3  EAN                EAM/EAO.
Ethyl amyl ketone........................       18  ........  EAK                ELK.
Ethylbenzene.............................       32  ........  ETB
Ethyl butanol............................       20  ........  EBT
N-Ethyl-butylamine.......................        7  ........  EBA
Ethyl tert-butyl ether...................       41         2  EBE
Ethyl butyrate...........................       34  ........  EBR

[[Page 74]]


Ethyl chloride...........................       36  ........  ECL
Ethyl cyclohexane........................       31  ........  ECY
N-Ethylcyclohexylamine...................        7  ........  ECC
2-Ethyl-2-(2,4-dichlorophenoxy) acetate..       34  ........  EDY
2-Ethyl-2-(2,4-dichlorophenoxy)                 34  ........  EDP
 propionate.
S-Ethyl dipropylthiocarbamate *..........       34         3  ECB
Ethylene.................................       30  ........  ETL
Ethylene carbonate.......................       34  ........  ECR
Ethylene chlorohydrin....................       20  ........  ECH
Ethylene cyanohydrin.....................       20         2  ETC
Ethylenediamine..........................        7         2  EDA                EMX.
Ethylenediaminetetraacetic acid/                43  ........  EDS
 tetrasodium salt solution.
Ethylene dibromide.......................       36  ........  EDB
Ethylene dichloride......................       36         2  EDC
Ethylene glycol..........................       20         2  EGL                EAG.
Ethylene glycol acetate..................       34  ........  EGO
Ethylene glycol butyl ether, see Ethylene       40  ........  EGM                EGC.
 glycol monoalkyl ethers.
Ethylene glycol tert-butyl ether, see           40  ........  EGG                EGC.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol butyl ether acetate......       34  ........  EMA
Ethylene glycol diacetate................       34  ........  EGY
Ethylene glycol dibutyl ether............       40  ........  EGB
Ethylene glycol ethyl ether, see Ethyl          40  ........  EGE                EGC/EEO.
 glycol monoalkyl ethers.
Ethylene glycol ethyl ether acetate, see        34         2  EGA                EEA.
 2-Ethoxyethyl acetate.
Ethylene glycol hexyl ether, see Ethylene       40  ........  EGH                EGC.
 glycol monoalkyl ethers.
Ethylene glycol isobutyl ether, see             40  ........  .................  EGC (EGG/EGM).
 Ethylene glycol monoalkyl ethers.
Ethylene glycol isopropyl ether, see            40  ........  EGI                EGN/EGP.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol methyl butyl ether, see         40  ........  EMB                EGC.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol methyl ether, see               40  ........  EME                EGC.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol methyl ether acetate.....       34  ........  EGT
Ethylene glycol monoalkyl ethers.........       40         2  EGC
    Including:
        Ethylene glycol butyl ether......
        Ethylene glycol isobutyl ether...
        Ethylene glycol methyl butyl
         ether.
        Ethylene glycol tert-butyl ether.
        Ethylene glycol ethyl ether......
        Ethylene glycol hexyl ether......
        Ethylene glycol methyl ether.....
        Ethylene glycol propyl ether.....
        Ethylene glycol iso-propyl ether.
Ethylene glycol phenyl ether.............       40  ........  EPE
Ethylene glycol phenyl ether/Diethylene         40  ........  EDX
 glycol phenyl ether mixture.
Ethylene glycol propyl ether, see               40  ........  EGP                EGC/EGI/EGN.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol iso-propyl ether, see           40  ........  EGI                EGC/EGN/EGP.
 Ethylene glycol monoalkyl ethers.
Ethylene glycol n-propyl ether, see             40  ........  EGN                EGC (EGI/EGP).
 Ethylene glycol monoalkyl ethers.
Ethylene oxide...........................        0         1  EOX
Ethylene oxide/Propylene oxide mixture...       16  ........  EPF                EPM.
Ethylene oxide/Propylene oxide mixture          16         3  EPM                EPF.
 with an Ethylene oxide content not more
 than 30% by mass *.
Ethylene-Propylene copolymer (in liquid         31  ........  EPY
 mixtures).
Ethylene-Vinyl acetate copolymer                43  ........  ECV
 (emulsion).
Ethyl ether, see Diethyl ether...........       41  ........  .................  EET.
Ethyl-3-ethoxypropionate.................       34  ........  EEP
2-Ethylhexaldehyde, see Octyl aldehydes..       19  ........  EHA                OAL (OLX).
2-Ethylhexanoic acid, see Octanoic acid..        4  ........  EHO                OAY (OAA).
2-Ethylhexanol, see Octanol..............       20  ........  EHX                OCA (OTA).
2-Ethylhexyl acrylate....................       14  ........  EAI
2-Ethylhexylamine........................        7  ........  EHM
Ethyl hexyl phthalate....................       34  ........  EHE
Ethyl hexyl tallate......................       34  ........  EHT
2-Ethyl-2-(hydroxymethyl) propane-1,3-          34  ........  EHD
 diol, (C8-C10) ester.
Ethyl lactate............................       34  ........  ELT
Ethylidene norbornene....................       30         2  ENB
Ethyl methacrylate.......................       14  ........  ETM
N-Ethylmethylallylamine..................        7  ........  EML
Ethyl propionate.........................       34  ........  EPR
2-Ethyl-3-propylacrolein.................       19         2  EPA
Ethyl toluene............................       32  ........  ETE
Fatty acids (saturated, C13+)............       34  ........  FAB                FAD.
Fatty acids (saturated, C14+), see Fatty        34  ........  FAD                FAB.
 acids (saturated, C13+).
Fatty acid methyl esters *...............        4         3  FME
Fatty acids, (C8-C10) *..................        4         3  FDS
Fatty acids, (C12+) *....................        4         3  FDT                FAB/FAD/FAI/FDI.

[[Page 75]]


Fatty acids, (C16+) *....................        4         3  FDI
Fatty acids, essentially linear (C6-C18)         4      2, 3  FAE
 2-ethylhexyl ester *.
Ferric chloride solution.................        1  ........  FCS                FCL.
Ferric                                          43         2  FHX                STA.
 hydroxyethylethylenediaminetriacetic
 acid, trisodium salt solution.
Ferric nitrate/Nitric acid solution......        3         2  FNN
Fish oil, see Oil, edible: Fish..........       34         2  .................  OFS (AFN).
Fish solubles (water based fish meal            43  ........  FSO
 extracts).
Fluorosilicic acid (20-30%) in water             1         3  FSK                FSJ/FSL/HFS.
 solution *.
Fluorosilicic acid (30% or less).........        1  ........  FSJ                FSK/FSL/HFS.
Formaldehyde (50% or more), Methanol            19         2  MTM
 mixtures.
Formaldehyde solutions (37%-50%).........       19         2  FMS                FMG/FMR.
Formaldehyde solutions (45% or less *)...       19      2, 3  FMR                FMG/FMS.
Formamide................................       10  ........  FAM
Formic acid..............................        4         2  FMA                FMB.
Formic acid (85% or less)................       19         2  FMB                FMA.
Formic acid (over 85%) *.................        4      2, 3  FMD
Formic acid mixture (containing up to 18%        4      2, 3  FMC                FMA/FMB.
 Propionic acid and up to 25% Sodium
 formate) *.
Fructose solution........................       43  ........  FTS                FRT.
Fumaric adduct of Rosin, water dispersion       43  ........  FAR
Furfural.................................       19  ........  FFA
Furfuryl alcohol.........................       20         2  FAL
Gas oil, cracked, see Oil, misc: Gas,           33  ........  .................  GOC.
 cracked.
Gasoline blending stock, alkylates.......       33  ........  GAK
Gasoline blending stock, reformates......       33  ........  GRF
Gasolines:
    Automotive (containing not over 4.23        33  ........  GAT
     grams lead per gal.).
    Aviation (containing not over 4.86          33  ........  GAV                AVA.
     grams lead per gal.).
    Casinghead (natural).................       33  ........  GCS
        Polymer..........................       33  ........  GPL
        Straight run.....................       33  ........  GSR
Gasolines: Pyrolysis (containing                33  ........  GPY                PYG.
 Benzene), see Pyrolysis gasoline
 (containing Benzene).
Glucitol/Glycerol blend propoxylated            40         3  GGA
 (containing less than 10% amines) *.
Glucose solution.........................       43  ........  GLS                DTS.
Glutaraldehyde solutions (50% or less)...       19  ........  GTA
Glycerine................................       20         2  GCR
Glycerine (83%)/Dioxanedimethanol (17%)         20  ........  GDN                GDM.
 mixture.
Glycerol, see Glycerine..................       20  ........  .................  GCR.
Glycerol ethoxylated.....................       40  ........  GXA
Glycerol monooleate......................       20  ........  GMO
Glycerol polyalkoxylate..................       40  ........  GPA
Glycerol propoxylated *..................       40         3  GXP
Glycerol, propoxylated and ethoxylated *.       40         3  GXE
Glycerol/Sucrose blend propoxylated and         40         3  GSB
 ethoxylated *.
Glyceryl triacetate......................       34  ........  GCT
Glycidyl ester of tertiary carboxylic           34  ........  GLT                GLU.
 acid, see Glycidyl ester of C10 trialkyl
 acetic acid.
Gylcidyl ester of tridecyl acetic acid,         34  ........  GLT                GLU.
 see Glycidyl ester of C10 trialkyl
 acetic acid.
Glycidyl ester of C10 trialkyl acetic           34  ........  GLU                GLT.
 acid.
Glycidyl ester of Versatic acid, see            34  ........  GLT                GLU.
 Gylcidyl ester of C10 trialkyl acetic
 acid.
Glycine, sodium salt solution............        7  ........  GSS
Glycol mixture, crude....................       20  ........  GMC
Glycol diacetate, see Ethylene glycol           34  ........  .................  EGY.
 diacetate.
Glycolic acid solution (70% or less *)...        4         3  GLC
Glycol triacetate, see Glyceryl                 34  ........  .................  GCT.
 triacetate.
Glyoxal solution (40% or less *).........       19         3  GOS
Glyoxylic acid solution (50% or less *)..        4         3  GAC
Glyphosate solution (not containing              7  ........  GIO                RUP.
 surfactant).
Groundnut oil, see Oil, edible: Groundnut       34  ........  .................  OGN (VEO).
Heptadecane (all isomers), see Alkanes          31  ........  .................  ALV (ALJ).
 (C10+) (all isomers).
Heptane (all isomers), see Alkanes (C6-         31  ........  HMX                ALK(HPI/HPT).
 C9).
n-Heptanoic acid.........................        4  ........  HEN                HEP.
Heptanol (all isomers *).................       20         3  HTX                HTN.
Heptene (all isomers *)..................       30         3  HPX                THE.
Heptyl acetate...........................       34  ........  HPE
Heptylbenzenes, see Alkyl (C3-C4)               32  ........  .................  AKD.
 benzenes.
Herbicide (C15-H22-NO2-Cl), see                 34  ........  .................  MCO.
 Metolachlor.
Hexadecanol, see Alcohols (C13+).........       20  ........  .................  ALY (ASY/AYL).
1-Hexadecylnaphthalene/1,4-                     32  ........  HNH                HNI.
 bis(Hexadecyl)naphthalene mixture.
1-n-Hexadecylnaphthalene (90%)/1,4-di-n-        32  ........  HNI                HNH.
 (Hexadecyl)naphthalene (10%).

[[Page 76]]


Hexaethylene glycol, see Polyethylene           20  ........  HMG                PEG.
 glycol.
Hexamethylenediamine adipate solution....       43  ........  HAN                HAM.
Hexamethylenediamine adipate (50% in            43  ........  HAM                HAN.
 water).
Hexamethylenediamine (molten *)..........        7         3  HME                HMD/HMC.
Hexamethylenediamine solution............        7  ........  HMC                HMD/HME.
Hexamethylene diisocyanate...............       12  ........  HMS                HDI.
Hexamethylene glycol.....................       20  ........  HMG                HXG.
Hexamethyleneimine.......................        7  ........  HMI
Hexamethylenetetramine solutions.........        7  ........  HTS                HMT.
1,6-Hexanediol, distillation overheads *.        4      2, 3  HDO
Hexanoic acid............................        4  ........  HXO
Hexanol..................................       20  ........  HXM                HEW/HEZ/HXN.
Hexene (all isomers *)...................       30         3  HEX                HXE/HXT/HXU/HXV/MPN/MTN.
Hexyl acetate............................       34  ........  HAE
Hexylbenzenes, see Alkyl (C3-C4) benzenes       32  ........  .................  AKD.
Hexylene glycol, see Hexamethylene glycol       20  ........  HXG                HMG.
Hog grease, see Lard.....................       34  ........  .................  LRD.
Hydrochloric acid........................        1  ........  HCL
Hydrofluorosilicic acid (25% or less),           1  ........  .................  FSJ(FSK/FSL/HFS).
 see Fluorosilicic acid (30% or less).
Hydrogenated starch hydrolysate *........        0      1, 3  HSH
bis(Hydrogenated tallow alkyl)methyl             7  ........  HTA
 amines.
Hydrogen peroxide solutions (over 8% but         0       1,3  HPN                HPO/HPS.
 not over 60% by mass) *.
Hydrogen peroxide solutions (over 60% but        0      1, 3  HPS                HPN/HPO.
 not over 70% by mass *).
alpha-Hydro-omega-                              40  ........  HTO                PYS/PYT.
 hydroxytetradeca(oxytetramethylene).
2-Hydroxyethyl acrylate..................       14         2  HAI
N-(Hydroxyethyl)ethylenediamine triacetic       43  ........  HET
 acid, trisodium salt solution.
2-Hydroxy-4-(methylthio)butanoic acid....        4  ........  HBA
Hydroxy terminated polybutadiene, see           31  ........  .................  PHT.
 Polybutadiene, hydroxy terminated.
Illipe oil, see Oil, edible: Illipe......       34  ........  .................  ILO (VEO).
Isoamyl alcohol *........................       20         3  IAA                AAI/AAL/AAN/APM/ASE.
Isobutyl alcohol *.......................       20      2, 3  IAL                BAN/BAS/BAT/BAY.
Isobutyl formate *.......................       34         3  BFI                BFN/BFO.
Isobutyl methacrylate *..................       14         3  BMI                BMH/BMN.
Isononylaldehyde (crude).................       19  ........  INC
Isophorone...............................       18         2  IPH
Isophoronediamine........................        7  ........  IPI
Isophorone diisocyanate..................       12  ........  IPD
Isoprene (all isomers)...................       30  ........  IPR
Isoprene (part refined)..................       30  ........  IPS                IPR/ISC.
Isoprene concentrate (Shell).............       30  ........  ISC
Isopropanolamine *.......................        8         3  MPA                IPF/PAX/PLA.
Isopropanolamine solution *..............        8         3  PAI                MPA/PAY/PLA/PRG.
Isopropyl acetate *......................       34         3  IAC                PAT.
Isopropyl alcohol *......................       20      2, 3  IPA                IPB/PAL.
Isopropylamine *.........................        7         3  IPP                IPO/IPQ/PRA.
Isopropylamine (70% or less) solution *..        7         3  IPQ                IPO/IPP/PRA.
Isopropylbenzenes, see Alkyl (C3-C4)            32  ........  .................  AKC(CUM/PBY/PBZ).
 benzenes.
Isopropylcyclohexane *...................       31         3  IPX
Isopropyl ether *........................       41         3  IPE                PRL/PRN.
Jatropha oil, see Oil, misc: Jatropha....       34  ........  .................  JTO.
Jet fuels:
    JP-4.................................       33  ........  JPF
    JP-5.................................       33  ........  JPV
    JP-8.................................       33  ........  JPE
Kaolin clay solution.....................       43  ........  KLC                KLS.
Kaolin slurry............................       43  ........  KLS                KLC.
Kerosene.................................       33  ........  KRS
Kraft black liquor.......................        5  ........  KBL                KPL.
Kraft pulping liquors (free alkali               5  ........  KPL                KBL.
 content 3% or more) (Black, Green, or
 White).
Lactic acid..............................        0         1  LTA
Lactonitrile solution (80% or less *)....       37         3  LNI
Lard.....................................       34  ........  LRD                OLD.
Latex, ammonia (1% or less *)-inhibited..       30         3  LTX
Latex: Carboxylated Styrene-Butadiene           43         3  LCC                LCB/LSB.
 copolymer; Styrene-Butadiene rubber *.
Latex, liquid synthetic..................       43  ........  LLS                LCB/LCC/LSB.
Lauric acid..............................       34  ........  LRA
Lauric acid methyl ester/Myristic acid          34  ........  LMM
 methyl ester mixture.
Lauryl polyglucose, see Alkyl(C12-C14)          43  ........  .................  AGM/LAP.
 polyglucoside solution (55% or less).

[[Page 77]]


Lauryl polyglucose (50% or less), see           43  ........  LAP                AMG.
 Alkyl (C12-C14) polyglucoside solution
 (55% or less).
Lecithin.................................       34  ........  LEC
Lignin liquor............................       43  ........  LNL                ALG/CLL/LGA/LGM/LSL/SHC/SHP/SHQ/
                                                                                  SLP.
Ligninsulfonic acid, magnesium salt             43         3  LGM                LGA/LNL/LSL.
 solution *.
Ligninsulfonic acid, sodium salt                43  ........  LGA                LNL or SLG.
 solution, see Lignin liquor or Sodium
 lignosulfonate solution.
d-Limonene, see Dipentene................       30  ........  .................  DPN.
Linear alkyl (C12-C16) propoxyamine              8  ........  LPE
 ethoxylate.
Linseed oil, see Oil, misc: Linseed......       34  ........  .................  OLS.
Liquefied Natural Gas, see Methane.......       34  ........  LNG                MTH.
Liquid chemical wastes *.................        0      1, 3  LCW
Long-chain alkaryl polyether (C11-C20)...       41  ........  LCP
Long-chain alkaryl sulfonic acid (C16-           0         1  LCS
 C60).
Long-chain alkyl amine...................        7  ........  LAA
Long-chain alkylphenate/Phenol sulfide          21  ........  LPS
 mixture.
Long-chain alkyl (C13+) salicylic acid...        4  ........  LAS
L-Lysine solution (60% or less *)........       43         3  LYS
Magnesium chloride solution..............        0      1, 2  MGL
Magnesium hydroxide slurry...............        5  ........  MHS
Magnesium long-chain alkaryl sulfonate          34  ........  MAS                MSE.
 (C11-C50).
Magnesium long-chain alkyl phenate              34  ........  MPS
 sulfide (C8-C20).
Magnesium long-chain alkyl salicylate           34  ........  MLS
 (C11+).
Magnesium nitrate solution (66.7%).......       43  ........  MGP                MGN/MGO.
Magnesium nonyl phenol sulfide, see             34  ........  .................  MPS.
 Magnesium long-chain alkyl phenate
 sulfide (C8-C20).
Magnesium sulfonate, see Magnesium long-        34  ........  MSE                MAS.
 chain alkaryl sulfonate (C11-C50).
Maleic anhydride.........................       11  ........  MLA
Maltitol solution *......................        0      1, 3  MTI
Mango kernel oil, see Oil, edible: Mango        34  ........  .................  MKO (VEO).
 kernel.
2-Mercaptobenzothiazol (in liquid                5  ........  BTM                SMD.
 mixture).
Mercaptobenzothiazol, sodium salt                5  ........  SMB                MBT.
 solution.
Mesityl oxide............................       18         2  MSO
Metam sodium solution....................        7  ........  MSS                SMD.
Methacrylic acid.........................        4  ........  MAD
Methacrylic acid--Alkoxypoly(alkylene           20         3  MAQ
 oxide) methacrylate copolymer, sodium
 salt aqueous solution (45% or less) *.
Methacrylic resin in ethylene dichloride.       14  ........  MRD
Methacrylonitrile........................       15         2  MET
Methane..................................       31  ........  MTH                LNG.
3-Methoxy-1-butanol......................       20  ........  MTX
3-Methoxybutyl acetate...................       34  ........  MOA
N-(2-Methoxy-1-methyl ethyl)-2-ethyl-6-         34  ........  .................  MCO.
 methyl chloroacetanilide, see
 Metolachlor.
1-Methoxy-2-propyl acetate...............       34  ........  MXP
Methoxy triglycol, see Poly (2-8)               40  ........  MTG                PAG (TGY).
 alkylene glycol monoalkyl (C1-C6) ether.
Methyl acetate...........................       34  ........  MTT
Methyl acetoacetate......................       34  ........  MAE
Methyl acetylene/Propadiene mixture......       30  ........  MAP
Methyl acrylate..........................       14  ........  MAM
Methyl alcohol...........................       20         2  MAL
Methylamine solutions (42% or less *)....        7         3  MSZ
Methylamyl acetate.......................       34  ........  MAC
Methylamyl alcohol.......................       20  ........  MAA                MIC.
Methyl amyl ketone.......................       18  ........  MAK
N-Methylaniline *........................        9         3  MAN
alpha-Methylbenzyl alcohol with                 20         3  MBA
 Acetophenone (15% or less) *.
Methyl bromide...........................       36  ........  MTB
Methyl butanol, see the amyl alcohols....       20  ........  .................  AAI/AAL/AAN/APM/ASE/IAA.
Methyl butenol...........................       20  ........  MBL
Methyl butenes, see Pentene..............       30  ........  .................  PTX (AMW/AMZ/PTE).
Methyl tert-butyl ether..................       41         2  MBE
Methyl butyl ketone......................       18         2  MBB                MBK/MIK.
Methyl 3-(3,5 di-tert-butyl-4-                  20  ........  MYP
 hydroxyphenyl) propionate crude melt.
Methylbutynol............................       20  ........  MBY                MHB.
Methyl butyrate..........................       34  ........  MBU
Methyl chloride..........................       36  ........  MTC
Methylcyclohexane........................       31  ........  MCY

[[Page 78]]


Methylcyclohexanemethanol (crude)........       20  ........  MYH
Methylcyclopentadiene dimer..............       30  ........  MCK
Methylcyclopentadienyl manganese                 0      1, 3  MCT                MCW.
 tricarbonyl *.
Methylcyclopentadienyl manganese                 0         1  MCW                MCT.
 tricarbonyl (60-70%) in mineral oil.
Methyl diethanolamine....................        8  ........  MDE                MAB.
Methylene bridged isobtylenated phenols..       21  ........  MBP
Methylene chloride, see Dichloromethane..       21  ........  .................  DCM.
2-Methyl-6-ethyl aniline.................        9  ........  MEN
Methyl ethyl ketone......................       18         2  MEK
2-Methyl-5-ethyl pyridine................        9  ........  MEP
Methyl formate...........................       34  ........  MFM
N-Methylglucamine solution (70% or less         43         3  MGC
 *).
2-Methylglutaronitrile...................       37  ........  MLN                MGN.
2-Methylglutaronitrile with 2-                  37         3  MGE                MLN.
 Ethylsuccinonitrile (12% or less) *.
Methyl heptyl ketone.....................       18  ........  MHK
2-Methyl-2-hydroxy-3-butyne..............       20  ........  MHB                MBY.
Methyl isoamyl ketone, see Methyl amyl          18  ........  MAJ                MAK.
 ketone.
Methyl isobutyl carbinol, see Methyl amyl       20  ........  MIC                MAA.
 alcohol.
Methyl isobutyl ketone...................       18  ........  MIK                MBB/MBK.
Methyl methacrylate......................       14  ........  MMM
3-Methyl-3-methoxybutanol................       20  ........  MXB
3-Methyl-3-methoxybutyl acetate..........       34  ........  MMB
Methyl naphthalene (molten *)............       32         3  MNA
Methylolurea.............................       19  ........  MUT
2-Methyl pentane, see Hexane (all               31  ........  .................  HXS (ALK/HXA/IHA/NHX).
 isomers).
2-Methyl-1,5-pentanediamine..............        7  ........  MPM
2-Methyl-1-pentene, see Hexene (all             30  ........  MPN                HEX (HXE/HXT/HXU/HXV/MTN).
 isomers).
4-Methyl-1-pentene, see Hexene (all             30  ........  MTN                HEX (HXE/HXT/HXU/HXV/MPN).
 isomers).
Methyl tert-pentyl ether, see tert-Amyl         41  ........  .................  AYE.
 methyl ether.
2-Methyl-1,3-propanediol.................       20  ........  MDL
Methyl propyl ketone.....................       18  ........  MKE
Methylpyridine, see the Methylpyridines..        9  ........  MPQ                MPE/MPF/MPR.
2-Methylpyridine *.......................        9         3  MPR                MPE/MPF/MPQ.
3-Methylpyridine *.......................        9         3  MPE                MPF/MPQ/MPR.
4-Methylpyridine *.......................        9         3  MPF                MPE/MPQ/MPR.
N-Methyl-2-pyrrolidone...................        9         2  MPY
Methyl salicylate........................       34  ........  MES
alpha-Methylstyrene......................       30  ........  MSR
3-(Methylthio)propionaldehyde............       19  ........  MTP
Metolachlor..............................       34  ........  MCO
Microsillica slurry......................        4  ........  MOS
Milk.....................................       43  ........  MLK
Mineral spirits..........................       33  ........  MNS
Mixed C4 Cargoes.........................       30  ........  MIX
Molasses.................................       20  ........  MOL                MON.
Molasses residue (from fermentation).....        0         1  MON                MOL.
Molybdenum polysulfide long-chain alkyl          0      1, 3  MOP
 dithiocarbamide complex *.
Monochlorodifluoromethane................       36  ........  MCF
Monoethanolamine, see Ethanolamine.......        8  ........  MEA
Monoisopropanolamine, see                        8  ........  .................  MPA (PLA/PLX).
 Isopropanolamine.
Monoethylamine, see Methylamine..........        7  ........  .................  EAM (EAN/EAO).
Morpholine...............................        7         2  MPL
Motor fuel anti-knock compound                   0         1  MFA
 (containing lead alkyls).
MTBE, see Methyl tert-butyl ether........       41  ........  .................  MBE.
Myrcene..................................       30  ........  MRE
Naphtha:
    Aromatic.............................       33  ........  NAR
    Coal tar solvent.....................       33  ........  NCT
    Heavy................................       33  ........  NAG
    Paraffinic...........................       33  ........  NPF
    Petroleum............................       33  ........  PTN
    Solvent..............................       33  ........  NSV
    Stoddard solvent.....................       33  ........  NSS
    Varnish Makers' and Painters'........       33  ........  NVM
Naphthalene (molten *)...................       32         3  NTM
Naphthalene sulfonic acid-Formaldehyde           0         1  NFS
 copolymer, sodium salt solution.
Naphthalene sulfonic acid, sodium salt          34  ........  NSB                NSA.
 solution.
Naphthenic acid..........................        4  ........  NTI
Naphthenic acid, sodium salt solution....       43  ........  NTS
Neodecanoic acid.........................        4  ........  NEA                DCO/NAT.

[[Page 79]]


Nitrating acid (mixture of Sulfuric and          0         1  NIA
 Nitric acids).
Nitric acid (70% and over) *.............        3      2, 3  NCE                NAC/NCD.
Nitric acid (less than 70%)..............        3         2  NCD                NAC/NCE.
Nitrilotriacetic acid, trisodium salt           34         3  NCA
 solution *.
Nitrobenzene.............................       42  ........  NTB
o-Nitrochlorobenzene, see o-                    42  ........  .................  CNO (CNP).
 Chloronitrobenzene.
Nitroethane..............................       42  ........  NTE
Nitroethane(80%)/Nitropropane (20%) *....       42      2, 3  NNL                NNM/NNO/NPM/NPN/NPP/NTE.
Nitroethane/1-Nitropropane (each 15% or         42         2  NNO                NNL/NNM/NPM/NPN/NPP/NTE.
 more) mixture.
Nitrogen.................................        0         1  NXX
Nitrophenol (mixed isomers)..............       42  ........  NPX                NIP/NPH/NPX.
o-Nitrophenol (molten)...................        0      1, 2  NTP                NIP/NPH/NPX.
1-or 2-Nitropropane......................       42  ........  NPM                NPN/NPP.
Nitropropane (60%)/Nitroethane (40%)            42  ........  NNM                NNL/NNO/NPM/NPN/NPP/NTE.
 mixture.
o- or p-Nitrotoluenes *..................       42         3  NIT                NIE/NTR/NTT.
Nonane (all isomers), see Alkanes (C6-C9)       31  ........  NAX                ALK (NAN).
Nonanoic acid (all isomers)..............        4  ........  NNA                NAI/NIN.
Nonanoic/Tridecanoic acid mixture........        4  ........  NAT                NAI/NIN/NNA.
Non-edible industrial grade palm oil, see       34  ........  .................  OPB.
 Oil, misc: Palm, non-edible industrial
 grade.
Nonene (all isomers).....................       30  ........  NOO                NNE/NON/OAM/OFX/OFY.
Nonyl acetate............................       34  ........  NAE
Non-noxious Liquid Substance, (12) n.o.s.        0         1  NOL
 Cat OS.
Nonyl alcohol (all isomers)..............       20         2  NNS                ALR/DBC/NNI/NNN.
Nonylbenzene, see Alkyl(C9+)benzenes.....       32  ........  .................  AKB.
Nonyl methacrylate monomer...............       14  ........  NMA
Nonyl phenol.............................       21  ........  NNP
Nonylphenol (48-62%)/Phenol (42-48%)/           21  ........  NYL
 Dinonylphenol (1-10%) mixture.
Nonyl phenol poly(4+)ethoxylate, see            40  ........  NPE                APN.
 Alkyl (C7-C11) phenol poly (4-12)
 ethoxylate.
Nonyl phenol sulfide (90% or less)              34  ........  .................  AKS (NPS).
 solution, see Alkyl phenol sulfide (C8-
 C40).
Noxious Liquid Substance, n.o.s. (NLS')..        0         1
1-Octadecanol, see Stearyl alcohol.......       20  ........  .................  SYL (ALY/ASY).
1-Octadecene, see the olefin or alpha-          30  ........  .................  OAM/OFZ.
 olefin entries.
Octadecenoamide solution.................       10  ........  ODD
Octadecenol, see Alcohols (C13+).........       20  ........  .................  ALY (AYL/ASY/OYL).
Octamethylcyclotetrasiloxane *...........       34         3  OSA
Octane (all isomers), see Alkanes (C6-C9)       31  ........  OAX                ALK (IOO/OAN).
Octanoic acid (all isomers)..............        4  ........  OAY                EHO/OAA.
Octanol (all isomers)....................       20         2  OCX                EHX/OPA/OTA.
Octene (all isomers).....................       30         2  OTX                OAM/OFC/OFY/OFW/OTE.
n-Octyl acetate..........................       34  ........  OAF                OAE.
Octyl alcohol, see Octanol (all isomers).       20         2  .................  OCX (EHX/IOA/OTA).
Octyl aldehydes..........................       19  ........  OAL                EHA/IOC//OLX.
Octylbenzenes, see Alkyl (C3-C4) benzenes       32  ........  .................  AKD.
Octyl decyl adipate......................       34  ........  ODA
n-Octyl Mercaptan........................       34  ........  OME
Octyl nitrates (all isomers), see               34         2  ONE                AKN.
 Alkyl(C7-C9) nitrates.
Octyl phenol.............................       21  ........  OPH
Octyl phthalate, see Dialkyl (C7-C13)           34  ........  .................  DAH (DIE/DIO/DLK/DOP).
 phthalates.
Oil, edible:
    Beechnut.............................       34  ........  OBN                VEO.
    Castor...............................       34  ........  OCA                VEO.
    Cocoa butter.........................       34  ........  OCB                VEO.
    Coconut..............................       34         2  OCC                VEO.
    Cod liver............................       34  ........  OCL                AFN.
    Corn.................................       34  ........  OCO                VEO.
    Cotton seed..........................       34  ........  OCS                VEO.
    Fish.................................       34         2  OFS                AFN.
    Groundnut............................       34  ........  OGN                VEO.
    Hazelnut.............................       34  ........  OHN                VEO.
    Illipe...............................       34  ........  ILO                VEO.
    Lard.................................       34  ........  OLD                AFN.
    Maize, see Oil, edible: Corn.........       34  ........  .................  OCO (VEO).
    Mango kernel *.......................       34         3  MKO
    Nutmeg butter........................       34  ........  ONB                VEO.

[[Page 80]]


    Olive................................       34  ........  OOL                VEO.
    Palm.................................       34         2  OPM                VEO.
    Palm kernel..........................       34  ........  OPO                VEO.
    Palm kernel olein....................       34  ........  PKO                VEO.
    Palm kernel stearin..................       34  ........  PKS                VEO.
    Palm mid fraction....................       34  ........  PFM                VEO.
    Palm olein...........................       34  ........  PON                VEO.
    Palm stearin.........................       34  ........  PMS                VEO.
    Peanut...............................       34  ........  OPN                VEO.
    Poppy................................       34  ........  OPY                VEO.
    Poppy seed...........................       34  ........  OPS                VEO.
    Raisin seed..........................       34  ........  ORA                VEO.
    Rapeseed (low erucic acid containing        34  ........  ORO                ORP/VEO.
     less than 4% free fatty acids).
    Rice bran............................       34  ........  ORB                VEO.
    Safflower............................       34  ........  OSF                VEO.
    Salad................................       34  ........  OSL                VEO.
    Sesame...............................       34  ........  OSS                VEO.
    Shea butter..........................       34  ........  OSH                VEO.
    Soya bean............................       34  ........  OSB                VEO.
    Sunflower, see Oil, edible Sunflower        34  ........  .................  OSN (VEO).
     seed.
    Sunflower seed.......................       34  ........  OSN                VEO.
    Tucum................................       34  ........  OTC                VEO.
    Vegetable............................       34  ........  OVG                VEO.
    Walnut...............................       34  ........  OWN                VEO.
Oil, fuel:
    No. 1................................       33  ........  OON
    No. 1-D..............................       33  ........  OOD
    No. 2................................       33  ........  OTW
    No. 2-D..............................       33  ........  OTD
    No. 4................................       33  ........  OFR
    No. 5................................       33  ........  OFV
    No. 6................................       33  ........  OSX
Oil, misc:
    Acid mixture from soybean, corn             34  ........  AOM
     (maize) and sunflower oil refining.
    Aliphatic............................       33  ........  OML
    Animal...............................       34  ........  OMA                AFN.
    Aromatic.............................       33  ........  OMR
    Camelina.............................       34  ........  OCI
    Cashew nut shell (untreated).........        4  ........  OCN
    Clarified............................       33  ........  OCF
    Coal.................................       33  ........  OMC
    Coconut fatty acid...................       34         2  CFA
    Coconut oil, fatty acid methyl ester.       34  ........  OCM
    Cotton seed oil, fatty acid..........       34  ........  CFY
    Crude................................       33  ........  OFA
    Diesel...............................       33  ........  ODS
    Disulfide............................        0         1  ODI
    Gas, cracked.........................       33  ........  GOC
    Gas, high pour.......................       33  ........  OGP
    Gas, low pour........................       33  ........  OGL
    Gas, low sulfur......................       33  ........  OGS
    Heartcut distillate..................       33  ........  OHD
    Jatropha.............................       34  ........  JTO
    Lanolin..............................       34  ........  OLL                AFN.
    Linseed..............................       33  ........  OLS
    Lubricating..........................       33  ........  OLB
    Mineral..............................       33  ........  OMN
    Mineral seal.........................       33  ........  OMS
    Motor................................       33  ........  OMT
    Neatsfoot............................       33  ........  ONF                AFN.
    Oiticica.............................       34  ........  OOI
    Palm acid............................       34  ........  PLM
    Palm fatty acid distillate...........       34  ........  PFD
    Palm oil fatty acid methyl ester.....       34  ........  OPE
    Palm kernel acid.....................       34  ........  OPK
    Palm kernel fatty acid distillate....       34  ........  PNG
    Palm, non-edible industrial grade....       34  ........  OPB
    Penetrating..........................       33  ........  OPT
    Perilla..............................       34  ........  OPR
    Pilchard.............................       34  ........  OPL                AFN.
    Pine.................................       33  ........  OPI                PNL.

[[Page 81]]


    Rape seed fatty acid methyl esters *.       34         3  ORP
    Residual.............................       33  ........  ORL
    Resin, distilled.....................       34  ........  ORR
    Road.................................       33  ........  ORD
    Rosin................................       33  ........  ORN
    Seal.................................       34  ........  OSE
    Soapstock............................       34  ........  OIS
    Soyabean (epoxidized)................       34  ........  OSC
    Soyabean fatty acid methyl ester.....       34  ........  .................  OST.
    Spindle..............................       33  ........  OSD
    Tall.................................       34  ........  OTL                OTI/OTJ.
    Tall, crude..........................       34         2  OTI                OTJ/OTL.
    Tall, distilled......................       34         2  OTJ                OTI/OTL.
    Tall, fatty acid.....................       34         2  OTT
    Tall fatty acid (resin acids less           34         2  OTK                OTT.
     than 20%).
    Tall pitch...........................       34  ........  OTP
    Transformer..........................       33  ........  OTF
    Tung.................................       34  ........  OTG
    Turbine..............................       33  ........  OTB
    Vacuum gas oil.......................       32  ........  OVC
Oleamide solution, see Octadecenoamide          10  ........  .................  ODD.
 solution.
Olefin-Alkyl ester copolymer (molecular         34  ........  OCP
 weight 2000+).
Olefin mixture (C7-C9) C8 rich,                 30         3  OFC                OFW/OFY/OFX.
 stabilized *.
Olefin mixtures (C5-C7) *................       30         3  OFX                OAM/OFC/OFW/OFX/OFZ.
Olefin mixtures (C5-C15) *...............       30         3  OFY                OAM/OFC/OFW/OFX/OFZ.
Olefins (C13+, all isomers)..............       30  ........  OFZ                OAM/OFW.
alpha-Olefins (C6-C18) mixtures..........       30  ........  OAM                OFC/OFW/OFX/OFY/OFZ.
Oleic acid...............................       34  ........  OLA
Oleum....................................        0      1, 2  OLM                SAC/SFX.
Oleyl alcohol, see Alcohols (C13+).......       20  ........  OYL                ALY (ASY).
Oleylamine...............................        7  ........  OLY
Olive oil, see Oil, edible: Olive........       34  ........  .................  OOL (VEO).
Orange juice (concentrated) *............        0      1, 3  OJC                OJN.
Orange juice (not concentrated) *........        0      1, 3  OJN                OJC.
Organomolybdenum amide...................       10  ........  OGA
ORIMULSION, see Asphalt emulsion.........       33  ........  .................  ASQ.
Oxyalkylated alkyl phenol formaldehyde...       33  ........  OPF
Oxygenated aliphatic hydrocarbon mixture         0      1, 3  OAH
 *.
Palm acid oil, see Oil, misc: Palm acid *       34         3  .................  PLM.
Palm fatty acid distillate, see Oil,            34         3  .................  PFD.
 misc: Palm fatty acid distillate *.
Palm kernel acid oil, see Oil, misc: Palm       34  ........  .................  PNO.
 kernel acid.
Palm kernel acid oil, methyl ester, see         34  ........  .................  PNF.
 Oil, misc: Palm kernel acid, methyl
 ester.
Palm kernel oil fatty acid distillate,          34  ........  .................  PNG.
 see Oil, misc: Palm kernel fatty acid
 distillate.
Palm kernel oil, see Oil, edible: Palm          34  ........  .................  OPO (VEO).
 kernel.
Palm kernel olein, see Oil, edible: Palm        34         3  .................  PKO (VEO).
 kernel olein *.
Palm kernel stearin, see Oil, edible:           34         3  .................  PKS (VEO).
 Palm kernel stearin *.
Palm mid fraction, see Oil, edible: Palm        34         3  .................  PFM (VEO).
 mid fraction *.
Palm oil, see Oil, edible: Palm *........       34         3  .................  OPM (VEO).
Palm oil fatty acid methyl ester, see           34         3  .................  OPE.
 Oil, misc: Palm fatty acid methyl ester
 *.
Palm olein, see Oil, edible: Palm Olein *       34         3  .................  PON (VEO).
Palm stearin, see Oil, edible: Palm             34  ........  .................  PMS (VEO).
 stearin.
Parachlorobenzotrifluoride...............       32  ........  PBF
n-Paraffins (C10-C20), see n-Alkanes            31  ........  PFN                ALJ.
 (C10+).
Paraffin wax, see Waxes: Paraffin *......       31         3  .................  WPF.
Paraldehyde..............................       19  ........  PDH
Paraldehyde-Ammonia reaction product.....        9  ........  PRB
Pentachloroethane........................       36  ........  PCE
Pentadecanol, see Alcohols (C13+)........       20  ........  PDC                ALY.
1,3-Pentadiene...........................       30  ........  PDE                PDN.
1,3-Pentadiene (greater than 50%),              30         3  PMM
 Cyclopentene and isomers, mixtures *.
Pentaethylene glycol, see Polyethylene          20  ........  .................  PEG.
 glycols.
Pentaethylene glycol methyl ether, see          40  ........  .................  PAG.
 Poly(2-8)alkylene glycol monoalkyl (C1-
 C6) ether.
Pentaethylenehexamine....................        7  ........  PEN
Pentaethylenehexamine/                           7  ........  PEP
 Tetraethylenepentamine mixture.
Pentane (all isomers)....................       31  ........  PTY                IPT/PTA.
Pentanoic acid...........................        4  ........  POC.

[[Page 82]]


n-Pentanoic acid (64%)/2-Methyl butryic          4  ........  POJ                POC.
 acid (36%) mixture.
Pentasodium salt of Diethylenetriamine          43  ........  .................  DYS.
 pentaacetic acid solution, see
 Diethylenetriamine pentaacetic acid,
 pentasodium salt solution.
Pentene (all isomers)....................       30  ........  PTX                PTE.
n-Pentyl propionate......................       34  ........  PPE
Perchloroethylene........................       36         2  PER                TTE.
Petrolatum...............................       33  ........  PTL
Phenol...................................       21         2  PHN                PNS.
Phenol solutions (2% or less)............       43  ........  PNS                PHN.
1-Phenyl-1-xylyl ethane..................       32  ........  PXE
Phosphate esters.........................       34  ........  PZE
Phosphate esters, alkyl (C12-C14) amine..        7  ........  PEA
Phosphoric acid..........................        1  ........  PAC
Phosphorus, yellow or white..............        0         1  PPW                PPB/PPR.
Phosphosulfurized bicycle terpene........        0         1  PBT
Phthalate based polyester polyol.........        0      1, 2  PBE
Phthalic anhydride (molten)..............       11  ........  PAN
alpha-Pinene.............................       30  ........  PIO                PIB/PIN.
beta-Pinene..............................       30  ........  PIP                PIN/PIO.
Pine oil, see Oil, misc: Pine............       33  ........  PNL                OPI.
Piperazine (crude).......................       34  ........  PZC                PPZ/PIZ.
Piperazine (70% or less).................       30  ........  PIZ                PPB/PPZ.
Piperylene concentrate...................       30  ........  PIC                PDE/PDN.
Polyacrylic acid solution (40% or less)..       43  ........  PYA
Polyalkenyl succinic anhydride amine.....        7  ........  PSN
Polyalkyl acrylate.......................       14  ........  PAY
Polyalky (C18-C22) acrylate in Xylene....       14  ........  PIX
Polyalkyl alkenamine succinimide,                7  ........  PSO
 molybdenum oxysulfide.
Polyalkylene glycols/Polyalkylene glycol        40  ........  PPX
 monoalkyl ether mixtures.
Polyalkylene glycol butyl ether, see            40  ........  PGB                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Poly(2-8)alkylene glycol monoalkyl(C1-C6)       40  ........  PAG
 ether.
    Including:
        Diethylene glycol butyl ether....
        Diethylene glycol ethyl ether....
        Diethylene glycol n-hexyl ether..
        Diethylene glycol methyl ether...
        Diethylene glycol propyl ether...
        Dipropylene glycol butyl ether...
        Dipropylene glycol methyl ether..
        Polyalkylene glycol butyl ether..
        Polyethylene glycol monoalkyl
         ether.
        Polypropylene glycol methyl ether
        Triethylene glycol butyl ether...
        Triethylene glycol ethyl ether...
        Triethylene glycol methyl ether..
        Tripropylene glycol methyl ether.
Poly(2-8)alkylene glycol monoalkyl(C1-C6)       34  ........  PAF
 ether acetate.
    Including:
        Diethylene glycol butyl ether
         acetate.
        Diethylene glycol ethyl ether
         acetate.
        Diethylene glycol methyl ether
         acetate.
Polyalkylene glycols/Polyalkylene glycol        40  ........  PPX
 monoalkyl ethers mixtures.
Polyalkylene oxide polyol................       20  ........  PAO
Polyalkyl (C10-C20) methacrylate.........       14  ........  PMT                PYY.
Polyalkyl methacrylate in mineral oil....       14  ........  PYY                PMT.
Polyalkyl(C10-C18) methacrylate/Ethylene-       14  ........  PEM
 Propylene copolymer mixture.
Polyalpha olefins........................       31  ........  PYO
Polyaluminum chloride solution...........        1  ........  PLS
Polybutadiene, hydroxyl terminated.......       20  ........  PHT
Polybutene...............................       33  ........  PLB
Polybutenyl succinimide..................       10  ........  PBS
Polycarboxylic ester (C9+), see                 34  ........  .................  DTY.
 Ditridecyl adipate.
Poly(2+)cyclic aromatics.................       32  ........  PCA
Polydimethylsiloxane, see                       34  ........  .................  DMP.
 Dimethylpolysiloxane.
Polyether, borated.......................       41  ........  PED
Polyether (molecular weight 1350+).......       41  ........  PYR
Polyether polyols........................       41  ........  PEO
Polyethylene glycol......................       40  ........  PEG
Polyethylene glycol dimethyl ether.......       40  ........  PEF
Poly (ethylene glycol) methylbutenyl            40  ........  PBN
 ether (MW 1000).
Polyethylene glycol monoalkyl ether, see        40  ........  PEE                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.

[[Page 83]]


Polyethylene polyamines..................        7         2  PEB                PEY.
Polyethylene polyamines (more than 50% C5-       7       2,3  PEY                PEB.
 C20 Paraffin oil) *.
Polyferric sulfate solution..............       34  ........  PSS
Polyglycerine/Sodium salts solution             20         2  PGT                PGS.
 (containing less than 3% Sodium
 hydroxide).
Polyglycerol.............................       20  ........  PGL
Poly(iminoethylene)-graft-N-                     7         3  PIG                PIM.
 poly(ethyleneoxy) solution (90% or less)
 *.
Polyisobutenamine in aliphatic (C10-C14)         7  ........  PIB                PIA.
 solvent.
Polyisobutenyl anhydride adduct..........       11  ........  PBA
Polyisobutenyl succinimide...............       10  ........  PIS
Poly(4+)isobutylene......................       30  ........  PIL
Polyisobutylene succinic anhydride.......       11  ........  PYS
Polymerized esters.......................       34  ........  PYM
Polymethylene polyphenyl isocyanate......       12  ........  PPI
Polyolefin (molecular weight 300+).......       31  ........  PMW                PLF.
Polyolefin amide alkeneamine (C17+)......       33  ........  POH                POD.
Polyolefin amide alkeneamine (C28+), see        33  ........  POD                POH.
 Polyolefin amide alkenamine (C17+).
Polyolefin amide alkeneamine borate (C28-       34  ........  PAB
 C250).
Polyolefin amide alkeneamine in mineral         33  ........  PLK
 oil.
Polyolefin amide alkeneamine/Molybdenum          7  ........  PMO
 oxysulfide mixture.
Polyolefin amide alkeneamine polyol......       20  ........  PAP
Polyolefinamine (C28-C250)...............       33  ........  POM
Polyolefinamine in alkyl(C2-C4) benzenes.       32  ........  POF                POR.
Polyolefinamine in aromatic solvent *....       32         3  POR                POF.
Polyolefin aminoester salts (molecular          34  ........  PAE
 weight 2000+).
Polyolefin anhydride.....................       11  ........  PAR
Polyolefin ester (C28-C250)..............       34  ........  POS
Polyolefin in mineral oil................       30  ........  PLF                PMW.
Polyolefin phenolic amine (C28-C250).....        9  ........  PPH
Polyolefin phosphorosulfide, barium             34  ........  PPS
 derivative (C28-C250).
Poly (oxyalkylene) alkenyl ether (MW1000).
Polyoxybutylene alcohol..................       41  ........  PXA
Poly(20)oxyethylene sorbitan monooleate..       34  ........  PSM
Polyoxypropylenediamine (MW 2000)........        7  ........  PYD
Poly(5+)propylene........................       30  ........  PLQ                PLP.
Polypropylene glycol.....................       40  ........  PGC
Polypropylene glycol methyl ether, see          40  ........  PGM                PAG.
 Poly(2-8)alkylene glycol monoalkyl (C1-
 C6) ether.
Polysiloxane.............................       34  ........  PSX
Polysiloxane/White spirit, low (15-20%)         34  ........  PWS
 aromatic.
Potassium chloride solution..............       43  ........  PCU                PCD/PSD.
Potassium chloride solution (10% or more)       43  ........  PCS                PCD/PCU.
Potassium chloride solution (less than          43  ........  PSD                CLM/DRL/PCS/PCU.
 26%).
Potassium formate solutions..............       34  ........  PFR
Potassium hydroxide solution, see Caustic        5         2  .................  CPS/PTH.
 potash solution.
Potassium oleate.........................       34  ........  POE
Potassium polysulfide/Potassium                  0         1  PYP                PSF/PTF.
 thiosulfide solution (41% or less).
Potassium salt of polyolefin acid........       34  ........  PSP
Potassium thiosulfate (50% or less)......       43  ........  PTF
Propane..................................       31  ........  PRP                LPG.
iso-Propanolamine, see Isopropanolamine..        8  ........  .................  MPA (PAX/PLA).
n-Propanolamine..........................        8  ........  PLA                MPA/PAX.
2-Propene-1-aminium, N,N-dimethyl-N-2-           0      1, 3  PLN
 propenyl-, chloride, homopolymer
 solution *.
beta-Propiolactone *.....................       18         3  PLT
Propionaldehyde..........................       19  ........  PAD
Propionic acid...........................        4  ........  PNA
Propionic anhydride......................       11  ........  PAH
Propionitrile............................       37  ........  PCN
n-Propoxypropanol, see Propylene glycol         40  ........  PXP                PGE.
 monoalkyl ether.
n-Propyl acetate.........................       34  ........  PAT                IAC.
n-Propyl alcohol.........................       20         2  PAL                IPA.
n-Propylamine............................        7  ........  PRA                IPO/IPP/IPQ.
iso-Propylamine solution, see                    7  ........  .................  IPQ (IPO/IPP/PRA).
 Isopropylamine (70% or less) solution.
Propylbenzenes, see Alkyl (C3-C4) benzens       32  ........  PBY                AKC (CUM/PBZ).
iso-Propyl cyclohexane, see                     34  ........  .................  IPX.
 Isopropylcyclohexane.
Propylene................................       30  ........  PPL
Propylene-Butylene copolymer.............       30  ........  PBP
Propylene carbonate......................       34  ........  PLC
Propylene dimer..........................       30  ........  PDR
Propylene glycol.........................       20         2  PPG
Propylene glycol n-butyl ether, see             40  ........  PGD                PGE.
 Propylene glycol monoalkyl ether.

[[Page 84]]


Propylene glycol ethyl ether, see               40  ........  PGY                PGE.
 Propylene glycol monoalkyl ether.
Propylene glycol methyl ether, see              40  ........  PME                PGE.
 Propylene glycol monoalkyl ether.
Propylene glycol methyl ether acetate....       34  ........  PGN
Propylene glycol monoalkyl ether.........       40  ........  PGE
    Including:
        n-Propoxypropanol................
        Propylene glycol n-butyl ether...
        Propylene glycol ethyl ether.....
        Propylene glycol methyl ether....
        Propylene glycol propyl ether....
Propylene glycol phenyl ether............       40  ........  PGP
Propylene glycol propyl ether, see         .......  ........  .................  PGE.
 Propylene glycol monoalkyl ether.
Propylene oxide..........................       16  ........  POX
Propylene tetramer.......................       30  ........  PTT
Propylene trimer.........................       30  ........  PTR
Pseudocumene, see Trimethylbenzene (all         32  ........  .................  TMB/TMD/TME/TRE.
 isomers).
Pyridine.................................        9  ........  PRD
Pyridine bases, see Paraldehyde-Ammonia          9  ........  .................  PRB.
 reaction product.
Pyrolysis gasoline (containing Benzene) *       32         3  PYG                GPY.
Rapeseed oil, see Oil, edible: Rapeseed..       34  ........  .................  ORO (VEO).
Rapeseed oil (low erucic acid containing        34         3  .................  ORO (VEO).
 less than 4% free fatty acids), see Oil,
 edible: Rapeseed, (low erucic acid
 containing less than 4% free fatty
 acids) *.
Rapeseed oil fatty acid methyl esters,          34         3  .................  RSO.
 see Oil, misc: Rapeseed fatty acid
 methyl esters *.
Refrigerant gases........................        0         1  RFG
Resin oil, distilled, see Oil, misc:            33         3  .................  ORR (ORS).
 Resin, distilled *.
Rice bran oil, see Oil, misc: Rice bran..       34  ........  .................  ORB.
Rosin, see Oil, misc: Rosin..............       33  ........  .................  ORN.
ROUNDUP..................................        7  ........  RUP                GIO.
Rum, see Alcoholic beverages.............       20  ........  .................  ABV.
Safflower oil, see Oil, edible: Safflower       34  ........  .................  OSF (VEO)
Sewage sludge............................       43  ........  SWS
Shea butter, see Oil, edible: Shea butter       34         3  .................  OSH (VEO).
 *.
Silica slurry............................       43  ........  SLC
Siloxanes................................       34  ........  SLX
Sludge, treated..........................       43  ........  SWA
Sodium acetate, Glycol, Water mixture           34         2  SAW                SAO/SAP/SAQ/SAY.
 (not containing Sodium hydroxide).
Sodium acetate, Glycol, Water mixture            5  ........  SAQ                SAO/SAP/SAW/SAY.
 (containing Sodium hydroxide).
Sodium acetate, Glycol, Water mixture (1%        5         2  SAY                SAO/SAP/SAQ/SAY.
 or less Sodium hydroxide) (if non-
 flammable or non-combustible).
Sodium acetate solutions.................       34  ........  SAN
Sodium alkyl (C14-C17) sulfonates (60-65%       34  ........  SSA                AKA/AKE/SSU.
 solution).
Sodium aluminate solution................        5  ........  SAV                SAU.
Sodium aluminate solution (45% or less)..        5  ........  SAU                SAV.
Sodium aluminosilicate slurry............       34  ........  SLR
Sodium benzoate solution.................       34  ........  SBN                SBM.
Sodium bicarbonate solution (less than          34  ........  SBC
 10%).
Sodium borohydride (15% or less)/Sodium          5  ........  SBX                CSS/SBH/SBI/SHD.
 hydroxide solution.
Sodium bromide solution (less than 50%) *       43         3  SBL                SBR.
Sodium carbonate solution................        5  ........  SCE
Sodium chlorate solution (50% or less)...        0      1, 2  SDD                SDC.
Sodium cyanide solution..................        5  ........  SCO                SCN/SCS.
Sodium dichromate solution (70% or less).        0      1, 2  SDL                SCR.
Sodium hydrogen sulfide (6% or less)/            0      1, 2  SSS                SCE/SHW.
 Sodium carbonate (3% or less) solution.
Sodium hydrogen sulfite solution (45% or        43  ........  SHY                SHX.
 less).
Sodium hydrosulfide/Ammonium sulfide             5         2  SSA                ASF/ASS.
 solution.
Sodium hydrosulfide solution (45% or             5         2  SHR
 less).
Sodium hydroxide solution, see Caustic           5         2  .................  CSS (SHD).
 soda solution.
Sodium hypochlorite solution (15% or             5  ........  SHP                SHC/SHQ.
 less).
Sodium hypochlorite solution (20% or             5  ........  SHQ                SHC/SHP.
 less).
Sodium lignosulfonate solution...........       43  ........  SLG                LNL.
Sodium long-chain alkyl salicylate (C13+)       34  ........  SLS
Sodium-2-mercaptobenzothiazol solution,          5  ........  .................  SMB.
 see Mercaptobenzothiazol, sodium salt
 solution.
Sodium methoxide (25% in methanol).......        5  ........  SMO
Sodium methylate 21-30% in methanol *....       20         3  SMT                SMS.
Sodium naphthalene sulfonate solution,          34  ........  SNS                NSA (NSB).
 see Naphthalene sulfonic acid (40% or
 less), sodium salt solution (40% or
 less).
Sodium naphthenate solution, see                34  ........  .................  NTS.
 Naphthenic acid, sodium salt solution.
Sodium nitrite solution..................        5  ........  SNI                SNT.
Sodium petroleum sulfonate...............       34  ........  SPS

[[Page 85]]


Sodium polyacrylate solution.............       43  ........  SOO                SOP.
Sodium poly(4+)acrylate solution.........       43         2  SOP                SOO.
Sodium salt of Ferric                           34  ........  STA                FHX.
 hydroxyethylethylenediaminetriacetic
 acid solution, see Ferric
 hydroxyethylethylenediaminetriacetic
 acid, trisodium salt solution.
Sodium silicate solution.................       43         2  SSN                SSC.
Sodium sulfate solution *................       34         3  SST                SSO.
Sodium sulfide/Hydrosulfide solution (H2S        0      1, 2  SSH                SDS/SHR/SSI/SSJ.
 15 ppm or less).
Sodium sulfide/Hydrosulfide solution (H2S        0      1, 2  SSI                SDS/SHR/SSH/SSJ.
 greater than 15 ppm but less than 200
 ppm).
Sodium sulfide/Hydrosulfide solution (H2S        0      1, 2  SSJ                SDS/SHR/SSH/SSI.
 greater than 200 ppm).
Sodium sulfide solution (15% or less)....       43  ........  SDR                SDS.
Sodium sulfite solution (25% or less)....       43  ........  SUP                SSF/SUS.
Sodium thiocyanate solution (56% or less)        0      1, 2  STS                SCY.
Sorbitol solution........................       20  ........  SBU                SBT.
Soyabean fatty acid methyl ester, see           34  ........  .................  OST.
 Oil, misc: Soyabean fatty acid methyl
 ester.
Soyabean oil, see Oil, edible: Soyabean..       34  ........  .................  OSB (VEO).
Stearic acid, see Fatty acids (saturated,       34  ........  SRA                FAD (FAB/FAE/FDI/FDT).
 C14+).
Stearyl alcohol..........................       20  ........  SYL                ALY/ASY.
Stoddard solvent, see Naphtha: Stoddard         33  ........  .................  NSS.
 solvent.
Styrene monomer..........................       30  ........  STY
Sulfohydrocarbon (C3-C88)................       33  ........  SFO
Sulfohydrocarbon, long-chain (C18+)              7  ........  SFX
 alkylamine mixture.
Sulfolane................................       39  ........  SFL
Sulfonated polyacrylate solutions........       43         2  SPA
Sulfur (molten)..........................        0      1, 2  SXX
Sulfur dioxide...........................        0         1  SFD
Sulfuric acid............................        2         2  SFA                SAC.
Sulfuric acid, spent.....................        2         2  SAC                SFA.
Sulfurized fat (C14-C20).................       33  ........  SFT
Sulfurized polyolefinamide...............        7  ........  SPY
Sulfurized polyolefinamide alkene(C28-           7  ........  SPO
 C250) amine.
Sunflower seed oil, see Oil, edible:            34  ........  .................  OSN (VEO).
 Sunflower seed.
Tall oil, see Oil, misc: Tall............       34  ........  .................  OTL (OTI/OTJ).
Tall oil, crude, see Oil, misc: Tall,           34      2, 3  .................  OTI (OTJ/OTL).
 crude *.
Tall oil, distilled, see Oil, misc: Tall,       34         3  .................  OTJ (OTI/OTL).
 distilled *.
Tall oil, fatty acid, see Oil, misc: Tall       34  ........  .................  OTT.
 fatty acid.
Tall oil fatty acid (resin acids less           34         2  .................  OTK (OTT).
 than 20%), see Oil, misc: Tall oil fatty
 acid (resin less than 20%).
Tall oil soap (crude)....................        4  ........  TOR                TOS.
Tall oil, pitch, see Oil, misc: Tall            34         3  .................  OTP (OTI/OTJ/OTL).
 pitch *.
Tallow...................................       34         2  TLO
Tallow alcohol, see Alcohols (C13+)......       20         2  TFA                ALY (ASY).
Tallow alkyl nitrile.....................       37  ........  TAN
Tallow fatty acid........................       34         2  TFD
Tallow fatty alcohol, see Alcohols (C13+)       20  ........  TFA                ALY.
TAME, see tert-Amyl methyl ether.........       40  ........  .................  AYE.
Tertiary butyl phenols...................       21  ........  BLT                BTP.
1,1,2,2-Tetrachloroethane................       36  ........  TEC                TEE.
Tetradecanol, see Alcohols (C13+)........       20  ........  TTN                ALY.
Tetradecene, see the olefins or alpha-          30  ........  .................  OAM/OFY/OFW/OFZ/TDD.
 olefin entries.
Tetradecylbenzene, see Alkyl(C9+)               32  ........  TDB                AKB.
 benzenes.
Tetraethylene glycol.....................       40  ........  TTG
Tetraethylene glycol methyl ether, see          40  ........  .................  PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Tetraethylene pentamine..................        7         2  TTP
Tetraethyl silicate monomer/oligomer (20%        0      1, 3  TSM
 in ethanol) *.
Tetrahydrofuran..........................       41  ........  THF
Tetrahydronaphthalene....................       32  ........  THN
Tetramethylbenzene (all isomers).........       32  ........  TTC                TTB.
Tetrapropylbenzene, see                         32  ........  .................  AKB.
 Alkyl(C9+)benzenes.
Tetrasodium salt of                            43.  ........  .................  EDS.
 ethylenediaminetetraacetic acid
 solution, see Ethylenediaminetetraacetic
 acid, tetrasodium salt solution.
Titanium dioxide slurry..................       43  ........  TDS
Titanium tetrachloride...................        2  ........  TTT
Toluene..................................       32  ........  TOL
Toluenediamine...........................        9  ........  TDA
Toluene diisocyanate.....................       12  ........  TDJ                TDI/TDJ.
o-Toluidine..............................        9  ........  TLI                TOD/TOI.
Triarylphosphate, see Triisopropylated          34  ........  TRA                TPL.
 phenyl phosphates.

[[Page 86]]


Tributyl phosphate.......................       34  ........  TBP
1,2,3-Trichlorobenzene (molten) *........       36         3  TBZ                TCB.
1,2,4-Trichlorobenzene...................       36  ........  TCB                TBZ.
1,1,1-Trichloroethane....................       36         2  TCE                TCM.
1,1,2-Trichloroethane....................       36  ........  TCM                TCE.
Trichloroethylene........................       36         2  TCL
1,2,3-Trichloropropane...................       36         2  TCN
1,1,2-Trichloro-1,2,2-trifluoroethane....       36  ........  TTF
Tricresyl phosphate (containing 1% or           34         3  TCO                TCP/TCQ.
 more ortho-isomer) *.
Tricresyl phosphate (containing less than       34         3  TCP                TCO/TCQ.
 1% ortho-isomer) *.
Tridecane (all isomers), see Alkanes            31  ........  TRD                ALV (ALJ).
 (C10+) (all isomers).
Tridecanoic acid.........................       34  ........  TDO
Tridecanol, see Alcohols (C13+)..........       20  ........  TDN                ALY (ASK/ASY/AYK/LAL).
Tridecene, see Olefins (C13+)............       30  ........  TRD                OAM/OFY/OFW/OFZ/TDC.
Tridecyl acetate.........................       34  ........  TAE
Tridecylbenzene, see Alkyl(C9+) benzenes.       32  ........  TRB                AKB.
Triethanolamine..........................        8         2  TEA
Triethylamine............................        7  ........  TEN
Triethylbenzene..........................       32  ........  TEB
Triethylene glycol.......................       40  ........  TEG
Triethylene glycol butyl ether, see             40  ........  TBE                PAG.
 Poly(2-8)alkylene glycol monoalkyl (C1-
 C6) ether.
Triethylene glycol butyl ether mixture...       40  ........  TBD
Triethylene glycol di-(2-ethylbutyrate)..       34  ........  TGD
Triethylene glycol ether mixture.........       40  ........  TYM
Triethylene glycol ethyl ether, see             40  ........  TGE                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Triethylene glycol methyl ether, see            40  ........  TGY                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Triethylenetetramine.....................        7         2  TET
Triethyl phosphate.......................       34  ........  TPS
Triethyl phosphite.......................       34         2  TPI
Triisobutylene...........................       30  ........  TIB
Triisooctyl trimellitate.................       34  ........  TIS
Triisopropanolamine......................        8  ........  TIP
Triisopropanolamine salt of 2,4-                43  ........  .................  DTI.
 Dichlorophenoxyacetic acid solution, see
 2,4-Dichlorophenoxyacetic acid,
 Triisopropanolamine salt solution.
Triisopropylated phenyl phosphates.......       34  ........  TPL
Trimethylacetic acid.....................        4  ........  TAA
Trimethylamine solution (30% or less)....        7  ........  TMT                TMA.
Trimethylbenzene (all isomers)...........       32  ........  TRE                TMB/TMD/TME.
Trimethyl nonanol, see Dodecanol.........       20  ........  .................  DDN (ASK/ASY/LAL).
Trimethylol propane polyethoxylated......       40  ........  TPR
2,2,4-Trimethyl-1,3-pentanediol                 34  ........  TMQ
 diisobutyrate.
2,2,4-Trimethyl-1,3-pentanediol-1-              34  ........  TMP
 isobutyrate.
2,2,4-Trimethyl-3-pentanol-1-isobutyrate.       34  ........  TMR
1,3,5-Trioxane...........................       41         2  TRO
Triphenylborane (10% or less)/Caustic            5  ........  TPB
 soda solution.
Tripropylene, see Propylene trimer.......       30  ........  .................  PTR.
Tripropylene glycol......................       40  ........  TGC
Tripropylene glycol methyl ether, see           40  ........  TGM                PAG.
 Poly(2-8)alkylene glycol monoalkyl(C1-
 C6) ether.
Trisodium nitrilotriacetate solution, see       34  ........  TSO                NCA (TSN).
 Nitrilotriacetic acid, trisodium salt
 solution.
Trisodium phosphate solution.............        5  ........  TSP
Trisodium salt of N-                            43  ........  .................  HET.
 (Hydroxyethyl)ethylenediaminetriacetic
 acid solution, see N-
 (Hydroxyethyl)ethylenediaminetriacetic
 acid, trisodium salt solution.
Trixylenyl phosphate, see Trixylyl              34  ........  .................  TRP.
 phosphate.
Trixylyl phosphate.......................       34  ........  .................  TRP.
Tung oil, see Oil, misc: Tung............       34  ........  .................  OTG
Turpentine...............................       30  ........  TPT
Turpentine substitute, see White spirit         33  ........  .................  WSL (WSP).
 (low (15-20%) aromatic).
Ucarsol CR Solvent 302 SG................        8  ........  UCS
Undecane (all isomers), see Alkanes             31  ........  UDN                ALV (ALJ).
 (C10+) (all isomers).
Undecanoic acid..........................        4  ........  UDA
Undecanol, see Undecyl alcohol...........       20  ........  .................  UND (ALR).
Undecene.................................       30  ........  UDD                UDC.
1-Undecene...............................       30  ........  UDC                UDD.
Undecyl alcohol..........................       20  ........  UND                ALR.
Undecylbenzene, see Alkyl(C9+) benzenes..  .......  ........  UDB                AKB.

[[Page 87]]


Urea, Ammonium mono- and di-hydrogen             0         1  UPX
 phosphate/Potassium chloride solution.
Urea/Ammonium nitrate solution *.........       34         3  UAV                ANU/UAS/UAT/UAU.
Urea/Ammonium nitrate solution                  43  ........  UAU                ANU/UAS/UAT/UAV.
 (containing less than 1% free Ammonia).
Urea/Ammonium nitrate solution                   6  ........  UAT                ANU/UAS/UAU/UAV.
 (containing less than 2% free Ammonia).
Urea/Ammonium phosphate solution.........       43  ........  UAP
Urea solution............................       43  ........  USL                URE.
Valeraldehyde (all isomers)..............       19  ........  VAK                IVA/VAL.
Vanillin black liquor (free alkali               5  ........  VBL
 content 3% or more).
Vegetable oils, n.o.s....................       34  ........  VEO
    Including:
        Beechnut oil.....................
        Camelina oil.....................
        Cashew nut shell.................
        Castor oil.......................
        Cocoa butter.....................
        Coconut oil......................
        Corn oil.........................
        Cottonseed oil...................
        Croton oil.......................
        Groundnut oil....................
        Hazelnut oil.....................
        Illipe oil.......................
        Jatropha oil.....................
        Linseed oil......................
        Mango kernel oil.................
        Nutmeg butter....................
        Oiticica oil.....................
        Olive oil........................
        Palm kernel oil..................
        Palm kernel olein................
        Palm kernel stearin..............
        Palm mid fraction................
        Palm, non-edible industrial grade
        Palm oil.........................
        Palm olein.......................
        Palm stearin.....................
        Peanut oil.......................
        Peel oil (oranges and lemons)....
        Perilla oil......................
        Pine oil.........................
        Poppy seed oil...................
        Poppy oil........................
        Raisin seed oil..................
        Rapeseed oil.....................
        Rapeseed (low erucic acid
         containing less than 4% free
         fatty acids).
        Resin, distilled.................
        Resin oil........................
        Rice bran oil....................
        Rosin oil........................
        Safflower oil....................
        Salad oil........................
        Sesame oil.......................
        Shea butter......................
        Soyabean oil.....................
        Sunflower seed oil...............
        Tall.............................
        Tall, crude......................
        Tall, distilled..................
        Tall, pitch......................
        Tucum oil........................
        Tung oil.........................
        Walnut oil.......................
Vegetable acid oils, n.o.s...............       34  ........  VAD
    Including:
        Corn acid oil....................
        Cottonseed acid oil..............
        Dark mixed acid oil..............
        Groundnut acid oil...............
        Mixed acid oil...................
        Mixed general acid oil...........
        Mixed hard acid oil..............

[[Page 88]]


        Mixed soft acid oil..............
        Rapeseed acid oil................
        Safflower acid oil...............
        Soya acid oil....................
        Sunflower seed acid oil..........
Vegetable fatty acid distillates *              34         3  VFD
    Including:
        Palm kernel fatty acid distillate
        Palm oil fatty acid distillate...
        Tall fatty acid distillate.......
        Tall oil fatty acid distillate...
Vegetable protein solution (hydrolyzed)..       43  ........  VPS
Vinyl acetate............................       13         2  VAM
Vinyl chloride...........................       35  ........  VCM
Vinyl ethyl ether........................       13  ........  VEE
Vinylidene chloride......................       35  ........  VCI
Vinyl neodecanoate.......................       13         2  VND
Vinyltoluene.............................       13  ........  VNT
Water....................................       43  ........  WTR
Waxes....................................  .......  ........  WAX
    Candelilla                                  34  ........  WCD
    Carnauba.............................       34  ........  WCA
    Paraffin.............................       31  ........  WPF
    Petroleum............................       33  ........  WPT
White spirit, see White spirit (low (15-        33  ........  WSP                WSL.
 20%) aromatic).
White spirit (low (15-20%) aromatic).....       33  ........  WSL                WSP.
Wine, see Alcoholic beverages............       20  ........  ABV
Wood lignin with Sodium acetate/oxalate *        0      1, 3  WOL
Xylenes..................................       32  ........  XLX                XLM/XLO/XLP.
Xylenes/Ethylbenzene (10% or more)              32  ........  XEB
 mixture.
Xylenol..................................       21  ........  XYL
Zinc alkaryl dithiophosphate (C7-C16)....       34  ........  ZAD
Zinc alkenyl carboxamide.................       10  ........  ZAA
Zinc alkyl dithiophosphate (C3-C14)......       34  ........  ZAP
Zinc bromide/Calcium bromide solution,          43  ........  .................  DZB.
 see Drilling brine (containing Zinc
 salts).
----------------------------------------------------------------------------------------------------------------
Notes:
1. Because of very high reactivity or unusual conditions of carriage or potential compatibility problems, this
  commodity is not assigned to a specific group in Figure 1 to 46 CFR part 150 (Compatibility Chart).
2. See Appendix I to 46 CFR part 150 (Exceptions to the Chart).
3. `` * '' From the March 2012 Annex to the 2007 edition of the IBC Code.
4. Italicized words are not part of the cargo name but may be used in addition to the cargo name.



             Sec. Table II to Part 150--Grouping of Cargoes

                          0. Unassigned Cargoes

    Acetone cyanohydrin \1 2\
    Alkylbenzenesulfonic acid \1 2\
    Aluminium chloride, Hydrochloric acid solution \1\
    Ammonium hydrogen phosphate solution \1\
    Ammonium nitrate solution \1\
    Ammonium thiocyanate, Ammonium thiosulfate solution \1\
    Benzenesulfonyl chloride \1 2\
    gamma-Butyrolactone \1 2\
    Chlorine \1\
    Chlorosulfonic acid \1\
    Decyloxytetrahydro-thiophene dioxide \2\
    tert-Dodecanethiol \2\
    2,4-Dichlorophenoxyacetic acid, Dimethylamine salt solution \1 2\
    Dimethylamine salt of 2,4-Dichlorophenoxyacetic acid solution \1 2\
    Diphenylol propane-Epichlorohydrin resins \1\
    Dodecylbenzenesulfonic acid \1 2\
    Dodecyl hydroxypropyl sulfide \2\
    Ethylene oxide \1\
    Hydrogen peroxide solutions \1\
    Lactic acid \2\
    Long chain alkaryl sulfonic acid (C16-C60) \2\
    Magnesium chloride solution \1 2\
    Molasses residue \1\
    Motor fuel antiknock compounds containing Lead alkyls \1\
    Naphthalene sulfonic acid-formaldehyde copolymer, sodium salt
solution \1\
    NIAX POLYOL APP 240C \1 2\
    Nitrating acid \1\
    Nitric acid (greater than 70%) \1\
    o-Nitrophenol \1 2\
    Noxious Liquid Substance, n.o.s. (NLS's) \1\
    Oleum \1 2\
    Phosphorus \1\
    Phthalate based polyester polyol \2\
    SAP 7001 \1\
    Sodium chlorate solution \1 2\
    Sodium dichromate solution \1 2\
    Sodium hydrogen sulfide, Sodium carbonate solution \1 2\

[[Page 89]]

    Sodium sulfide, Hydrosulfide solution \1 2\
    Sodium thiocyanate solution \1 2\
    Sulfur \1\
    Tall oil fatty acid, barium salt \2\
    Urea, Ammonium mono- and di-hydrogen phosphate, Potassium chloride
solution

                     1. Non-Oxidizing Mineral Acids

    Di-(2-ethylhexyl)phosphoric acid
    Ferric chloride solution
    Fluorosilicic acid
    Hydrochloric acid
    Phosphoric acid
    Polyaluminum chloride solution

                            2. Sulfuric Acids

    Sulfuric acid \2\
    Sulfuric acid, spent
    Titanium tetrachloride

                             3. Nitric Acid

    Ferric nitrate, Nitric acid solution
    Nitric acid (70% or less)

                            4. Organic Acids

    Acetic acid \2\
    Acrylic acid \2\
    Butyric acid
    Cashew nut shell oil (untreated)
    Citric acid
    Chloroacetic acid solution
    Chloropropionic acid
    Decanoic acid
    2,2-Dichloropropionic acid
    2,2-Dimethyloctanoic acid
    2-Ethylhexanoic acid
    Formic acid \2\
    Glycolic acid
    Glyoxylic acid
    n-Heptanoic acid
    Hexanoic acid
    2-Hydroxy-4-(methylthio)butanoic acid
    Methacrylic acid
    Naphthenic acid
    Neodecanoic acid
    Nonanoic acid
    Nonanoic, Tridecanoic acid mixture
    Octanoic acid
    n-Pentanoic acid, 2-Methyl butryic acid mixture
    Pentanoic acid
    Propionic acid
    Trimethylacetic acid
    Undecanoic acid

                               5. Caustics

    Ammonium sulfide solution
    Calcium hypochlorite solutions
    Caustic potash solution \2\
    Caustic soda solution \2\
    Cresylate spent caustic
    Cresylic acid, sodium salt solution
    Kraft black liquor
    Kraft pulping liquors
    Mercaptobenzothiazol, sodium salt solution
    Potassium hydroxide solution \2\
    Sodium acetate, Glycol, Water mixture (containing Sodium hydroxide)
    Sodium aluminate solution
    Sodium borohydride, Sodium hydroxide solution
    Sodium carbonate solutions
    Sodium cyanide solution
    Sodium hydrosulfide solution \2\
    Sodium hydrosulfide, Ammonium sulfide solution \2\
    Sodium hydroxide solution \2\
    Sodium hypochlorite solution
    Sodium 2-mercaptobenzothiazol solution
    Sodium naphthenate solution
    Sodium nitrite solution
    Triphenylborane, Caustic soda solution
    Trisodium phosphate solution
    Vanillin black liquor

                               6. Ammonia

    Ammonia, anhydrous
    Ammonia, aqueous
    Ammonium hydroxide (28% or less Ammonia)
    Ammonium nitrate, Urea solution (containing Ammonia)
    Urea, Ammonium nitrate solution (containing Ammonia)

                           7. Aliphatic Amines

    N-Aminoethylpiperazine
    Butylamine
    Cyclohexylamine
    Dibutylamine
    Diethylamine \2\
    Diethylenetriamine \2\
    Diisobutylamine
    Diisopropylamine
    Dimethylamine
    Dimethylamine solution
    N,N-Dimethylcyclohexylamine
    N,N-Dimethyldodecylamine
    Di-n-propylamine
    Diphenylamine, reaction product with 2,2,4-Trimethylpentene
    Diphenylamines, alkylated
    Dodecylamine, Tetradecylamine mixture \2\
    Dodecyldimethylamine, Tetradecyldimethylamine mixture
    Ethylamine \2\
    Ethylamine solution
    Ethyleneamine EA 1302 \2\
    N-Ethyl-n-butylamine
    N-Ethyl cyclohexylamine
    Ethylenediamine \2\
    2-Ethyl hexylamine
    N-Ethylmethylallylamine
    Glyphosate solution (not containing surfactant)
    Hexamethylenediamine
    Hexamethylenediamine solution
    Hexamethylenetetramine
    Hexamethylenetetramine solutions
    Hexamethylenimine
    HiTec 321

[[Page 90]]

    bis-(Hydrogenated tallow alkyl)methyl amines
    Isophorone diamine
    Long chain polyetheramine in alkyl(C2-C4)benzenes
    Metam sodium solution
    Methylamine solutions
    Morpholine \2\
    Oleylamine
    Pentaethylenehexamine
    Pentaethylenehexamine, Tetraethylenepentamine mixture
    Phosphate esters, alkyl (C12-C14) amine
    Polyethylene polyamines \2\
    Polyolefin amide alkeneamine (C28+)
    Polyisobutenamine in aliphatic (C10-C14) solvent
    Poly (C17+) olefin amine
    Polyolefin amide alkeneamine/Molybdenum oxysulfide mixture
    Propanil, Mesityl oxide, Isophorone mixture
    Propylamine
    iso-Propylamine solution
    Roundup
    Sulfohydrocarbon, long chain (C18+) alkylamine mixture
    Tetraethylenepentamine \2\
    Triethylamine
    Triethylenetetramine \2\
    Trimethylamine solution
    Trimethylhexamethylene diamine (2,2,4- and 2,4,4-)

                            8. Alkanolamines

    2-(2-Aminoethoxy)ethanol
    Aminoethyldiethanolamine, Aminoethylethanolamine solution
    Aminoethylethanolamine
    2-Amino-2-methyl-1-propanol
    Diethanolamine
    Diethylaminoethanol
    Diethylethanolamine
    Diisopropanolamine
    Dimethylethanolamine
    Ethanolamine
    Ethoxylated long chain (C16+) alkyloxyalkanamine
    Methyl diethanolamine
    Propanolamine
    Triethanolamine \2\
    Triisopropanolamine
    Ucarsol CR Solvent 302 SG

                           9. Aromatic Amines

    Alkyl (C8-C9) phenylamine in aromatic solvents
    Aniline
    Calcium long chain alkyl phenolic amine (C8-C40)
    4-Chloro-2-methylphenoxyacetic acid, Dimethylamine salt solution
    Dialkyl (C8-C9) diphenylamines
    2,6-Diethylaniline
    Dimethylamine salt of 4-Chloro-2-methylphenoxyacetic acid solution
    2,6-Dimethylaniline
    Diphenylamine
    2-Ethyl-6-methyl-N-(1'-methyl-2-methoxyethyl)aniline
    2-Methyl-6-ethyl aniline
    2-Methyl-5-ethyl pyridine
    Methyl pyridine
    3-Methylpyridine
    N-Methyl-2-pyrrolidone \2\
    Paraldehyde-Ammonia reaction product
    Pyridine
    Pyridine bases
    Toluenediamine
    p-Toluidine

                               10. Amides

    Acetochlor
    Acrylamide solution
    Alkenyl(C11+)amide
    N,N-Dimethylacetamide
    N,N-Dimethylacetamide solution
    Dimethylformamide
    Formamide
    N,N-bis(2-Hydroxyethyl) oleamide
    Octadecenoamide
    Zinc alkenyl carboxamide

                         11. Organic Anhydrides

    Acetic anhydride
    Alkenylsuccinic anhydride
    Maleic anhydride
    Phthalic anhydride
    Polyisobutenyl anhydride adduct
    Polyolefin anhydride
    Propionic anhydride

                             12. Isocyanates

    Diphenylmethane diisocyanate
    Hexamethylene diisocyanate
    Isophorone diisocyanate
    Polymethylene polyphenyl isocyanate
    Toluene diisocyanate
    Trimethylhexamethylene diisocyanate (2,2,4- and 2,4,4-)

                            13. Vinyl Acetate

    Vinyl acetate
    Vinyl ethyl ether
    Vinyl neodecanate
    Vinyl toluene

                              14. Acrylates

    Butyl acrylate
    Butyl methacrylate
    Butyl methacrylate, Decyl methacrylate, Cetyl-Eicosyl methacrylate
mixture
    Cetyl-Eicosyl methacrylate mixture
    Decyl acrylate
    Dodecyl methacrylate
    Dodecyl-Octadecyl methacrylate mixture
    Dodecyl-Pentadecyl methacrylate mixture
    Ethyl acrylate
    2-Ethylhexyl acrylate
    Ethyl methacrylate
    2-Hydroxyethyl acrylate \2\
    Methacrylic resin in Ethylene dichloride

[[Page 91]]

    Methyl acrylate
    Methyl methacrylate
    Nonyl methacrylate
    Polyalkyl(C18 - C22) acrylate in Xylene
    Polyalkyl (C10-C18) methacrylate/Ethylene
    Polyalkyl (C10-C20) methacrylate
    Propylene copolymer mixture
    Roehm monomer 6615

                         15. Substituted Allyls

    Acrylonitrile \2\
    Allyl alcohol \2\
    Allyl chloride
    1,3-Dichloropropene
    Dichloropropene, Dichloropropane mixtures
    Methacrylonitrile

                           16. Alkylene Oxides

    Butylene oxide
    Ethylene oxide, Propylene oxide mixtures
    Propylene oxide

                           17. Epichlorohydrin

    Chlorohydrins
    Epichlorohydrin

                               18. Ketones

    Acetone \2\
    Acetophenone
    Amyl methyl ketone
    Butyl heptyl ketone
    Camphor oil
    1-(4-Chlorophenyl)-4,4-dimethyl pentan-3-one \2\
    Cyclohexanone
    Cyclohexanone, Cyclohexanol mixtures \2\
    Diisobutyl ketone
    Ethyl amyl ketone
    Epoxy resin
    Ketone residue
    Isophorone \2\
    Mesityl oxide \2\
    Methyl amyl ketone
    Methyl butyl ketone
    Methyl butyl ketone
    Methyl ethyl ketone \2\
    Methyl heptyl ketone
    Methyl isoamyl ketone
    Methyl isobutyl ketone \2\
    Methyl propyl ketone
    Trifluralin in Xylene

                              19. Aldehydes

    Acetaldehyde
    Acrolein \2\
    Butyraldehyde
    Crotonaldehyde \2\
    Decaldehyde
    Ethylhexaldehyde
    2-Ethyl-3-propylacrolein \2\
    Formaldehyde, Methanol mixtures \2\
    Formaldehyde solution \2\
    Furfural
    Glutaraldehyde solution
    Glyoxal solutions
    3-Methyl butyraldehyde
    Methylolureas
    3-(Methylthio)propionaldehyde
    Octyl aldehyde
    Paraldehyde
    Pentyl aldehyde
    Propionaldehyde
    Valeraldehyde

                          20. Alcohols, Glycols

    Acrylonitrile-Styrene copolymer dispersion in Polyether polyol
    Alcoholic beverages
    Alcohol polyethoxylates
    Alcohol polyethoxylates, secondary
    Alcohols (C13+)
    Amyl alcohol
    Behenyl alcohol
    Brake fluid base mixtures
    1,4-Butanediol
    Butyl alcohol \2\
    Butylene glycol \2\
    Cetyl-Stearyl alcohol
    Choline chloride solutions
    Cyclohexanol
    Decyl alcohol \2\
    Diacetone alcohol \2\
    Diethyl hexanol
    Diisobutyl carbinol
    2,2-Dimethylpropane-1,3-diol
    Dodecanol
    Dodecyl alcohol
    Ethoxylated alcohols, C11-C15
    2-Ethoxyethanol
    Ethyl alcohol \2\
    Ethyl butanol
    Ethylene chlorohydrin
    Ethylene cyanohydrin
    Ethylene glycol \2\
    2-Ethylhexanol
    Furfuryl alcohol \2\
    Glycerine \2\
    Glycerine, Dioxanedimethanol mixture
    Glycerol monooleate
    Heptanol
    Hexamethylene glycol
    Hexanol
    Hexylene glycol
    Hydroxy terminated polybutadiene
    Icosa(oxypropane-2,3-diyl)s
    Lauryl polyglucose (50% or less)
    3-Methoxy-1-butanol
    Methyl alcohol \2\
    Methyl amyl alcohol
    Methyl butenol
    Methylbutynol
    2-Methyl-2-hydroxy-3-butyne
    Methyl isobutyl carbinol
    3-Methyl-3-methoxybutanol
    2-Methyl-1,3-propanediol
    Molasses
    Nonyl alcohol \2\
    Octanol \2\
    Octyl alcohol \2\
    Penacosa(oxypropane-2,3-diyl)s
    Pentadecanol
    Polyalkylene oxide polyol

[[Page 92]]

    Polybutadiene, hydroxy terminated
    Polyglycerol
    Polyglycerine, Sodium salts solution (containing less than 3% Sodium
hydroxide) \2\
    Polyolefin amide alkeneamine polyol
    Propyl alcohol \2\
    Propylene glycol \2\
    Rum
    Sorbitol solutions
    Stearyl alcohol
    Tallow fatty alcohol
    Tetradecanol
    Tridecanol
    Trimethyl nonanol
    Trimethylol propane polyethoxylate
    Undecanol
    Undecyl alcohol

                          21. Phenols, Cresols

    Benzyl alcohol
    Carbolic oil
    Creosote \2\
    Cresols
    Cresylic acid
    Cresylic acid dephenolized
    Cresylic acid, tar
    Dibutylphenols
    2,4-Dichlorophenol
    Dodecyl phenol
    o-Ethylphenol
    Long chain alkylphenate/phenol sulfide mixture
    Nonyl phenol
    Octyl phenol
    Phenol
    Xylenols

                        22. Caprolactam Solutions

    Caprolactam solution

                            23-29. Unassigned

                               30. Olefins

    Amylene
    Aryl polyolefin (C11-C50)
    Butadiene
    Butadiene, Butylene mixtures (cont. Acetylenes)
    Butene
    Butene oligomer
    Butylene
    1,5,9-Cyclododecatriene
    1,3-Cyclopentadiene dimer
    Cyclopentadiene, Styrene, Benzene mixture
    Cyclopentene
    Decene
    Dicyclopentadiene
    Diisobutylene
    Dipentene
    Dodecene
    Ethylene
    Ethylene-Propylene copolymer
    Ethylidene norbornene \2\
    1-Heptene
    Hexene
    Isoprene
    Isoprene concentrate (Shell)
    Latex (ammonia (1% or less) inhibited)
    Methyl acetylene, Propadiene mixture
    Methyl butene
    Methylcyclopentadiene dimer
    2-Methyl-1-pentene
    4-Methyl-1-pentene
    alpha-Methyl styrene
    Myrcene
    Nonene
    1-Octadecene
    Octene
    Olefin mixtures
    alpha-Olefins (C6 - C18) mixtures
    alpha-Olefins (C13+)
    1,3-Pentadiene
    Pentene
    alpha-Pinene
    beta-Pinene
    Polybutene
    Poly(4+)isobutylene
    Polyolefin (molecular weight 300+)
    Polypropylene
    Poly(5+)propylene
    Propylene
    Propylene-butylene copolymer
    Propylene dimer
    Propylene, Propane, MAPP gas mixture
    Propylene tetramer
    Propylene trimer
    Styrene monomer
    Tetradecene
    Tridecene
    Triisobutylene
    Tripropylene
    Turpentine
    Undecene

                              31. Paraffins

    Alkanes (C6-C9)
    n-Alkanes (C10+)
    iso- & cyclo-Alkanes (C10-C11)
    iso- & cyclo-Alkanes (C12+)
    Butane
    Cycloheptane
    Cyclohexane
    Cyclopentane
    Decane
    Dodecane
    Ethane
    Ethyl cyclohexane
    Heptane
    Hexane \2\
    Methane
    Methylcyclohexane
    2-Methyl pentane
    Nonane
    Octane
    Pentane
    Propane
    iso-Propylcyclohexane
    Tridecane
    Waxes:
     Paraffin

[[Page 93]]

                        32. Aromatic Hydrocarbons

    Alkyl(C3-C4)benzenes
    Alkyl(C5-C8)benzenes
    Alkyl(C9+)benzenes
    Alkyl acrylate-Vinyl pyridine copolymer in Toluene
    Alkylbenzene, Alkylindane, Alkylindene mixture (each C12-C17)
    Benzene
    Benzene hydrocarbon mixtures (having 10% Benzene or more)
    Benzene, Toluene, Xylene mixtures
    Butylbenzene
    Butyl phenol, Formaldehyde resin in Xylene
    Butyl toluene
    Cumene
    Cymene
    Decylbenzene
    Dialkyl(C10 - C14) benzenes
    Diethylbenzene
    Diisopropylbenzene
    Diisopropyl naphthalene
    Diphenyl
    Dodecylbenzene
    Dodecyl xylene
    Ethylbenzene
    Ethyl toluene
    1-Hexadecylnaphthalene, 1,4-bis(Hexadecyl)
    Isopropylbenzene
    Methyl naphthalene
    Naphthalene
    Naphthalene mixture
    Naphthalene still residue
    1-Phenyl-1-xylyl ethane
    Poly(2+)cyclic aromatics
    Polyolefin amine in alkylbenzenes (C2-C4)
    Propylbenzene
    Pseudocumene
    C9 Resinfeed (DSM) \2\
    Tetradecylbenzene
    Tetrahydronaphthalene
    1,2,3,5-Tetramethylbenzene
    Toluene
    Tridecylbenzene
    Triethylbenzene
    Trimethylbenzene
    Undecylbenzene
    Xylene
    Xylenes, Ethylbenzene mixture

                 33. Miscellaneous Hydrocarbon Mixtures

    Alachlor
    Alkylbenzenesulfonic acid, sodium salt solutions
    Alkyl dithiothiadiazole (C6-C24)
    Asphalt blending stocks, roofers flux
    Asphalt blending stocks, straight run residue
    Asphalt emulsion
    Aviation alkylates
    Calcuim sulfonate, Calcium carbonate, Hydrocarbon solvent mixture
    Coal tar
    Coal tar distillate
    Coal tar, high temperature
    Coal tar pitch
    Decahydronaphthalene
    Degummed C9 (DOW)
    Diphenyl, Diphenyl ether
    Distillates, flashed feed stocks
    Distillates, straight run
    Drilling mud (low toxicity) (if flammable or combustible)
    Gas oil, cracked
    Gasoline blending stock, alkylates
    Gasoline blending stock, reformates
    Gasolines:
     Automotive (not over 4.23 grams lead per gal.)
     Aviation (not over 4.86 grams lead per gal.)
     Casinghead (natural)
     Polymer
     Straight run
    Jet Fuels:
     JP-4
     JP-5
     JP-8
    Kerosene
    Mineral spirits
    Naphtha:
     Coal tar solvent
     Petroleum
     Solvent
     Stoddard solvent
     Varnish Makers' and Painters'
    Oil, fuel:
     No. 1
     No. 1-D
     No. 2
     No. 2-D
     No. 4
     No. 5
     No. 6
    Oil, misc:
     Aliphatic
     Aromatic
     Clarified
     Coal
     Crude
     Diesel
     Gas, high pour
     Heartcut distillate
     Linseed
     Lubricating
     Mineral
     Mineral seal
     Motor
     Neatsfoot
     Penetrating
     Pine
     Rosin
     Sperm
     Spindle
     Turbine
     Residual
     Road
     Transformer
    Oxyalkylated alkyl phenol formaldehyde
    Petrolatum
    Pine oil
    Polyolefin amine (C28-C250)
    Polyolefin amide alkeneamine (C17+)

[[Page 94]]

    Polyolefin amide alkeneamine borate (C28-C250)
    Sodium petroleum sulfonate
    Sulfohydrocarbon (C3-C88)
    Waxes:
     Petroleum
    Sulfurized fat (C14-C20)
    Sulfurized polyolefinamide alkeneamines (C28-C250)
    White spirit (low (15-20%) aromatic)

                               34. Esters

    Alkane (C14-C17) sulfonic acid, sodium salt solution
    Alkyl(C8+)amine, Alkenyl (C12+) acid ester mixture
    Alkyl ester copolymer (C6-C18)
    Alkyl(C7-C9) nitrates \2\
    Alkyl (C8-C40) phenol sulfide
    Alkyl (C10-C20, saturated and unsaturated) phosphite
    Alkyl sulfonic acid ester of phenol
    Alkylaryl phosphate mixtures (more than 40%
    Amyl acetate
    Animal and Fish oils, n.o.s.
    Animal and Fish acid oils and distillates, n.o.s.
    Barium long chain alkaryl (C11-C50) sulfonate
    Barium long chain alkyl(C8-C14)phenate sulfide
    Benzene tricarboxylic acid trioctyl ester
    Benzyl acetate
    Butyl acetate
    Butyl benzyl phthalate
    n-Butyl butyrate
    Butyl formate
    iso-Butyl isobutyrate
    n-Butyl propionate
    Calcium alkyl(C9)phenol sulfide, polyolefin phosphorosulfide mixture
    Calcium long chain alkaryl sulfonate (C11-C50)
    Calcium long chain alkyl phenate sulfide (C8-C40)
    Calcium long chain alkyl phenates
    Calcium long chain alkyl salicylate (C13+)
    Calcium nitrate, Magnesium nitrate, Potassium chloride solution
    Calcium nitrate solution
    Cobalt naphthenate in solvent naphtha
    Coconut oil, fatty acid
    Copper salt of long chain alkanoic acids
    Cottonseed oil, fatty acid
    Cyclohexyl acetate
    Decyl acetate
    Dialkyl(C7 - C13) phthalates
    Dibutyl hydrogen phosphonate
    Dibutyl phthalate
    Diethylene glycol butyl ether acetate
    Diethylene glycol dibenzoate
    Diethylene glycol ethyl ether acetate
    Diethylene glycol methyl ether acetate
    Diethylene glycol phthalate
    Di-(2-ethylhexyl)adipate
    Di-(2-ethylhexyl)phthalate
    Diethyl phthalate
    Diethyl sulfate
    Diheptyl phthalate
    Dihexyl phthalate
    Di-n-hexyl adipate
    Diisobutyl phthalate
    Diisodecyl phthalate
    Diisononyl adipate
    Diisononyl phthalate
    Diisooctyl phthalate
    Dimethyl adipate
    Dimethylcyclicsiloxane hydrolyzate
    Dimethyl glutarate
    Dimethyl hydrogen phosphite \2\
    Dimethyl naphthalene sulfonic acid, sodium salt solution \2\
    Dimethyl phthalate
    Dimethyl polysiloxane
    Dimethyl succinate
    Dinonyl phthalate
    Dioctyl phthalate
    Diphenyl tolyl phosphate, less than 0.02% ortho-isomer)
    Dipropylene glycol dibenzoate
    Dithiocarbamate ester (C7-C35)
    Ditridecyl adipate
    Ditridecyl phthalate
    2-Dodecenylsuccinic acid, dipotassium salt solution
    Diundecyl phthalate
    2-Ethoxyethyl acetate
    Ethyl acetate
    Ethyl acetoacetate
    Ethyl butyrate
    Ethylene carbonate
    Ethylene glycol acetate
    Ethylene glycol butyl ether acetate
    Ethylene glycol diacetate
    Ethylene glycol ethyl ether acetate
    Ethylene glycol methyl ether acetate
    Ethyl-3-ethoxypropionate
    Ethyl hexyl phthalate
    Ethyl propionate
    Ethyl propionate
    Fatty acids (saturated, C14+)
    Glycerol polyalkoxylate
    Glyceryl triacetate
    Glycidyl ester of C10 trialkyl acetic acid
    Gylcidyl ester of tridecylacetic acid
    Heptyl acetate
    Hexyl acetate
    Lauric acid
    Lecithin
    Magnesium long chain alkaryl sulfonate (C11-C50)
    Magnesium long chain alkyl phenate sulfide (C8-C20)
    Magnesium long chain alkyl salicylate (C11+)
    3-Methoxybutyl acetate
    1-Methoxy-2-propyl acetate
    Methyl acetate
    Methyl acetoacetate
    Methyl amyl acetate
    Methyl butyrate
    Methyl formate
    3-Methyl-3-methoxybutyl acetate

[[Page 95]]

    Methyl salicylate
    Metolachlor
    Naphthalene sulfonic acid, sodium salt solution (40% or less)
    Nonyl acetate
    n-Octyl acetate
    Octyl decyl adipate
    Oil, edible:
     Beechnut
     Castor
     Cocoa butter
     Coconut \2\
     Cod liver
     Corn
     Cotton seed
     Fish \2\
     Groundnut
     Hazelnut
     Lard
     Lanolin
     Nutmeg butter
     Olive
     Palm \2\
     Palm kernel
     Peanut
     Poppy
     Poppy seed
     Raisin seed
     Rapeseed
     Rice bran
     Safflower
     Salad
     Sesame
     Soya bean
     Sunflower
     Sunflower seed
     Tucum
     Vegetable
     Walnut
    Oil, misc:
     Animal
     Coconut oil, fatty actid methyl ester
     Cotton seed oil, fatty acid
     Lanolin
     Palm kernel oil, fatty acid methyl ester
     Palm oil, methyl ester
     Pilchard
     Perilla
     Soapstock
     Soyabean (epoxidized)
     Tall
     Tall, fatty acid \2\
     Tung
    Olefin/Alkyl ester copolymer (molecular weight 2000+)
    Oleic acid
    Palm kernel acid oil
    Palm kernel acid oil, methyl ester
    Palm stearin
    n-Pentyl propionate
    Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether acetate
    Polydimethylsiloxane
    Polyferric sulfate solution
    Polymethylsiloxane
    Poly(20)oxyethylene sorbitan monooleate
    Polysiloxane
    Polyolefin aminoester salt
    Polyolefin ester (C28-C250)
    Polyolefin phosphorosulfide, barium derivative (C28-C250)
    Potassium formate solution
    Potassium oleate
    Potassium salt of polyolefin acid
    Propyl acetate
    Propylene carbonate
    Propylene glycol methyl ether acetate
    Sodium acetate, Glycol, Water mixture (not containing Sodium
hydroxide) \2\
    Sodium acetate solution
    Sodium benzoate solution
    Sodium dimethyl naphthalene sulfonate solution \2\
    Sodium long chain alkyl salicylate (C13+)
    Sodium naphthalene sulfonate solution
    Soyabean oil (epoxidized)
    Stearic acid
    Tall oil
    Tall oil fatty acid (Resin acids less than 20%) \2\
    Tallow \2\
    Tallow fatty acid \2\
    Tributyl phosphate
    Tricresyl phosphate
    Tridecanoic acid
    Tridecyl acetate
    Triethylene glycol dibenzoate
    Triethylene glycol di-(2-ethylbutyrate)
    Triethyl phosphate
    Triethyl phosphite \2\
    Triisooctyl trimellitate \2\
    Triisopropylated phenyl phosphates
    2,2,4-Trimethyl-1,3-pentanediol diisobutyrate
    2,2,4-Trimethyl-1,3-pentanediol-1-isobutyrate
    2,2,4-Trimethyl-3-pentanol-1-isobutyrate
    Trimethyl phosphite \2\
    Trisodium nitrilotriacetate
    Trixylyl phosphate
    Trixylenyl phosphate
    Vegetable acid oils and distillates, n.o.s.
    Vegetable oils, n.o.s.
    Waxes:
     Carnauba
    Zinc alkaryl dithiophosphate (C7-C16)
    Zinc alkyl dithiophosphate (C3-C14)

                            35. Vinyl Halides

    Vinyl chloride
    Vinylidene chloride

                      36. Halogenated Hydrocarbons

    Benzyl chloride
    Bromochloromethane
    Carbon tetrachloride \2\
    Catoxid feedstock \2\
    Chlorinated paraffins (C10 - C13)
    Chlorinated paraffins (C14 - C17)
    Chlorobenzene
    Chlorodifluoromethane
    Chloroform
    Chlorotoluene

[[Page 96]]

    Dibromomethane
    Dibutylphenols
    3,4-Dichloro-1-butene
    Dichlorobenzene
    Dichlorodifluoromethane
    1,1-Dichloroethane
    1,6-Dichlorohexane
    2,2'-Dichloroisopropyl ether
    Dichloromethane
    Dichloropropane
    Ethyl chloride
    Ethylene dibromide
    Ethylene dichloride \2\
    Methyl bromide
    Methyl chloride
    Monochlorodifluoromethane
    n-Propyl chloride
    Pentachloroethane
    Perchloroethylene
    1,1,2,2-Tetrachloroethane
    1,2,3-Trichlorobenzene
    1,2,4-Trichlorobenzene
    1,1,1-Trichloroethane \2\
    1,1,2-Trichloroethane
    Trichloroethylene \2\
    1,2,3-Trichloropropane
    1,1,2-Trichloro-1,2,2-trifluoroethane

                              37. Nitriles

    Acetonitrile
    Adiponitrile
    Lactonitrile solution
    Propionitrile
    Tallow nitrile

                          38. Carbon Disulfide

    Carbon disulfide

                              39. Sulfolane

    Sulfolane

                            40. Glycol Ethers

    Alkyl (C7-C11) phenol poly(4-12)ethoxylate
    Alkyl (C9-C15) phenyl propoxylate
    Diethylene glycol \2\
    Diethylene glycol butyl ether
    Diethylene glycol dibutyl ether
    Diethylene glycol diethyl ether
    Diethylene glycol ethyl ether
    Diethylene glycol methyl ether
    Diethylene glycol n-hexyl ether
    Diethylene glycol phenyl ether
    Diethylene glycol propyl ether
    Dipropylene glycol
    Dipropylene glycol butyl ether
    Dipropylene glycol methyl ether
    Ethoxy triglycol
    Ethylene glycol hexyl ether
    Ethylene glycol methyl butyl ether
    Ethylene glycol monoalkyl ethers
    Ethylene glycol tert-butyl ether
    Ethylene glycol butyl ether
    Ethylene glycol dibutyl ether
    Ethylene glycol ethyl ether
    Ethylene glycol isopropyl ether
    Ethylene glycol methyl ether
    Ethylene glycol phenyl ether
    Ethylene glycol phenyl ether, Diethylene glycol phenyl ether mixture
    Ethylene glycol propyl ether
    Hexaethylene glycol
    Methoxy triglycol
    Nonyl phenol poly(4+)ethoxylates
    Pentaethylene glycol methyl ether
    Polyalkylene glycol butyl ether
    Polyalkylene glycols, Polyalkylene glycol monoalkyl ethers mixtures
    Polyethylene glycols
    Polyethylene glycol dimethyl ether
    Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether
    Polyethylene glycol monoalkyl ether
    Polypropylene glycol methyl ether
    Polypropylene glycols
    Poly(tetramethylene ether) glycols (mw 950-1050)
    Polytetramethylene ether glycol
    n-Propoxypropanol
    Propylene glycol monoalkyl ether
    Propylene glycol ethyl ether
    Propylene glycol methyl ether
    Propylene glycol n-butyl ether
    Propylene glycol phenyl ether
    Propylene glycol propyl ether
    Tetraethylene glycol
    Tetraethylene glycol methyl ether
    Triethylene glycol
    Triethylene glycol butyl ether
    Triethylene glycol butyl ether mixture
    Triethylene glycol ether mixture
    Triethylene glycol ethyl ether
    Triethylene glycol methyl ether
    Tripropylene glycol
    Tripropylene glycol methyl ether

                               41. Ethers

    Alkaryl polyether (C9-C20)
    tert-Amyl methyl ether
    Butyl ether
    2,2'-Dichloroethyl ether
    Diethyl ether
    Diglycidyl ether of Bisphenol A
    Diglycidyl ether of Bisphenol F
    Dimethyl furan
    1,4-Dioxane
    Diphenyl ether
    Diphenyl ether, Diphenyl phenyl ether mixture
    Ethyl tert-butyl ether \2\
    Ethyl ether
    Long chain alkaryl polyether (C11-C20)
    Methyl-tert-butyl ether \2\
    Methyl tert-pentyl ether
    Propyl ether
    Tetrahydrofuran
    1,3, 5-Trioxane
    Polyether (molecular weight 2000+)

                           42. Nitrocompounds

    o-Chloronitrobenzene
    Dinitrotoluene
    Nitrobenzene

[[Page 97]]

    Nitroethane
    Nitroethane, 1-Nitropropane mixture
    Nitropropane
    Nitropropane, Nitroethane mixtures
    Nitrotoluene

                    43. Miscellaneous Water Solutions

    Alkyl polyglucoside solutions
    Aluminum sulfate solution \2\
    2-Amino-2-hydroxymethyl-1,3-propanediol solution
    Ammonium bisulfite solution \2\
    Ammonium lignosulfonate solution
    Ammonium nitrate, Urea solution (not containing Ammonia)
    Ammonium polyphosphate solution
    Ammonium sulfate solution
    Ammonium thiosulfate solution
    Sulfonated polyacrylate solutions \2\
    Calcium bromide solution
    Calcium chloride solution
    Calcium lignosulfonate solution
    Caramel solutions
    Clay slurry
    Corn syrup
    Dextrose solution
    2,4-Dichlorophenoxyacetic acid, Diethanolamine salt solution
    2,4-Dichlorophenoxyacetic acid, Triisopropanolamine salt solution
\2\
    Diethanolamine salt of 2,4-Dichlorophenoxyacetic acid solution
    Diethylenetriamine pentaacetic acid, pentasodium salt solution
    Dodecyl diphenyl ether disulfonate solution
    Drilling brine (containing Calcium, Potassium, or Sodium salts)
    Drilling brine (containing Zinc salts)
    Drilling mud (low toxicity) (if non-flammable or non-combustible)
    Ethylenediaminetetracetic acid, tetrasodium salt solution
    Ethylene-Vinyl acetate copolymer emulsion
    Ferric hydroxyethylethylenediamine triacetic acid, trisodium salt
solution \2\
    Fish solubles (water based fish meal extracts)
    Fructose solution
    Fumaric adduct of Rosin, water dispersion
    Hexamethylenediamine adipate solution
    N-(Hydroxyethyl)ethylene diamine triacetic acid, trisodium salt
solution
    Kaolin clay slurry
    Latex, liquid synthetic
    Lignin liquor
    Liquid Streptomyces solubles
    l-Lysine solution
    N-Methylglucamine solution
    Naphthenic acid, sodium salt solution
    Potassium chloride solution
    Potassium thiosulfate solution
    Rosin soap (disproportionated) solution
    Sewage sludge, treated
    Sodium alkyl sulfonate solution
    Sodium hydrogen sulfite solution
    Sodium lignosulfonate solution
    Sodium polyacrylate solution \2\
    Sodium salt of Ferric hydroxyethylethylenediamine triacetic acid
solution
    Sodium silicate solution \2\
    Sodium sulfide solution
    Sodium sulfite solution
    Sodium tartrates, Sodium succinates solution
    Sulfonated polyacrylate solutions \2\
    Tall oil soap (disproportionated) solution
    Tetrasodium salt of EDTA solution
    Titanium dioxide slurry
    Triisopropanolamine salt of 2,4-Dichlorophenoxyacetic acid solution
    Urea, Ammonium nitrate solution (not containing Ammonia)
    Urea, Ammonium phosphate solution
    Urea solution
    Vegetable protein solution (hydrolysed)
    Water

                          Footnotes to Table II

    \1\ Because of very high reactivity or unusual conditions of
carriage or potential compatibility problems, this product is not
assigned to a specific group in the Compatibility Chart. For additional
compatibility information, contact Commandant (CG-ENG-5), Attn:
Hazardous Materials Division, U.S. Coast Guard Stop 7509, 2703 Martin
Luther King Jr. Avenue SE., Washington, DC 20593-7509. Telephone 202-
372-1420 or email [email protected].
    \2\ See Appendix I--Exceptions to the Chart.

[CGD 88-100, 54 FR 40012, Sept. 29, 1989]

    Editorial Note: For Federal Register citations affecting Table II to
part 150, see the List of CFR Sections Affected, which appears in the
Finding Aids section of the printed volume and at www.fdsys.gov.

    Effective Date Note: By USCG-2013-0423, 78 FR 50187, Aug. 16, 2013,
Table II to Part 150 was revised, effective Sept. 16, 2013. At 78 FR
56837, Sept. 16, 2013, the effectiveness was delayed until Jan. 16,
2014. At 79 FR 2106, Jan. 13, 2014, the effectiveness was delayed until
Jan. 16, 2015. For the convenience of the user, the revised text is set
forth as follows:



             Sec. Table II to Part 150--Grouping of Cargoes

------------------------------------------------------------------------
               Group                                Cargo
------------------------------------------------------------------------
0. Unassigned.....................  Acetone cyanohydrin \1 2\
                                    Alkenoic acid, polyhydroxy ester
                                     borated \1\
                                    Alkyl (C8-C10)/(C12-C14) : (60% or
                                     more/40% or less)

[[Page 98]]


                                    Alkyl (C18-C28) toluenesulfonic acid
                                     \1\
                                    Alkyl (C11-C17) benzene sulfonic
                                     acid
                                    polyglucoside solution (55% or less)
                                     \1\
                                    Alkylbenzenesulfonic acid \1 2\
                                    Alkyl benzene distillation bottoms
                                     \1\
                                    Aluminium chloride, Hydrochloric
                                     acid solution \1\
                                    Aluminum chloride/Hydrogen chloride
                                     solution \1\
                                    Ammonium hydrogen phosphate solution
                                     \1\
                                    Ammonium nitrate solution \1\
                                    Ammonium thiocyanate, Ammonium
                                     thiosulfate solution \1\
                                    Benzenesulfonyl chloride \1 2\
                                    gamma-Butyrolactone \1 2\
                                    Chlorine \1\
                                    Chlorosulfonic acid \1\
                                    Decyloxytetrahydro-thiophene dioxide
                                     \1\
                                    tert-Dodecanethiol \1\
                                    2,4-Dichlorophenoxyacetic acid,
                                     Dimethylamine salt solution (70% or
                                     less) \1 2\
                                    Dimethylamine salt of 2,4-
                                     Dichlorophenoxyacetic acid solution
                                     \1 2\
                                    Dimethyl disulfide \1\
                                    Diphenylol propane-Epichlorohydrin
                                     resins \1\
                                    Dodecylbenzenesulfonic acid \1 2\
                                    Dodecyl hydroxypropyl sulfide \1 2\
                                    Ethylene oxide \1\
                                    Hydrogen peroxide solutions \1\
                                    Hydrogenated starch hydrolysate \1\
                                    Lactic acid \1 2\
                                    Ligninsulfonic acid, sodium salt
                                     solution \1\
                                    Liquid chemical wastes \1\
                                    Long chain alkaryl sulfonic acid
                                     (C16-C60) \1 2\
                                    Magnesium chloride solution \1 2\
                                    Malitol solution \1\
                                    Methyl cyclopentadienyl manganese
                                     tricarbonyl \1\
                                    Methyl cyclopentadienyl manganese
                                     tricarbonyl (60-70%) in mineral oil
                                     \1\
                                    Molybdenum polysulfide long chain
                                     alkyl dithiocarbamide complex \1\
                                    Molasses residue \1\
                                    Motor fuel antiknock compounds
                                     containing Lead alkyls \1\
                                    Naphthalene sulfonic acid-
                                     formaldehyde copolymer, sodium salt
                                     solution \1\
                                    NIAX POLYOL APP 240C \1 2\
                                    Nitrating acid \1\
                                    Nitric acid (greater than 70%) \1\
                                    o-Nitrophenol \1 2\
                                    Noxious Liquid Substance, n.o.s.
                                     (NLS's) \1\
                                    Oleum \1 2\
                                    Orange juice (concentrated) \1\
                                    Orange juice (not concentrated) \1\
                                    Oxygenated aliphatic hydrocarbon
                                     mixture \1\
                                    Phosphorus \1\
                                    Phthalate based polyester polyol \1
                                     2\
                                    Potassium polysulfide, Potassium
                                     thiosulfide solution (41% or less)
                                     \1\
                                    2-Propene-1-aminium, N,N-dimethyl-N-
                                     2-propenyl-, chloride, homopolymer
                                     solution \1\
                                    SAP 7001 \1\
                                    Sodium chlorate solution \1 2\
                                    Sodium dichromate solution \1 2\
                                    Sodium hydrogen sulfide, Sodium
                                     carbonate solution \1 2\
                                    Sodium sulfide, Hydrosulfide
                                     solution \1 2\
                                    Sodium thiocyanate solution \1 2\
                                    Sulfur \1\
                                    Tall oil fatty acid, barium salt \1
                                     2\
                                    Tetraethyl silicate monomer/oligomer
                                     (20% in ethanol) \1\
                                    Urea, Ammonium mono- and di-hydrogen
                                     phosphate, Potassium chloride
                                     solution \1\
                                    Wood lignin with Sodium acetate/
                                     oxalate \1\
1. Non-Oxidizing Mineral Acids....  Di-(2-ethylhexyl)phosphoric acid
                                    Ferric chloride solution
                                    Fluorosilicic acid (20-30%) in water
                                     solution
                                    Fluorosilicic acid (30% or less)
                                    Hydrochloric acid
                                    Phosphoric acid
                                    Polyaluminum chloride solution
2. Sulfuric Acids.................  Sulfuric acid \2\
                                    Sulfuric acid, spent
                                    Titanium tetrachloride
3. Nitric Acids...................  Ferric nitrate, Nitric acid solution
                                    Nitric acid (70% or less)
                                    Nitric acid (70% and over)

[[Page 99]]


4. Organic Acids..................  Acetic acid \2\
                                    Acid oil mixture from soya bean,
                                     corn (maize) and sunflower oil
                                     refining
                                    Acrylic acid \2\
                                    Butyric acid
                                    i-Butyric acid
                                    Cashew nut shell oil (untreated)
                                    Citric acid (70% or less)
                                    Chloroacetic acid solution
                                    Chloroacetic acid (80% or less)
                                    Chloropropionic acid
                                    Decanoic acid
                                    2,2-Dichloropropionic acid
                                    2,2-Dimethyloctanoic acid
                                    2-Ethylhexanoic acid
                                    Fatty acids, (C8-C10)
                                    Fatty acids, (C12+)
                                    Fatty acids, (C16+)
                                    Fatty acids, essentially linear (C6-
                                     C18) 2-ethylhexyl ester
                                    Fatty acid methyl esters
                                    Formic acid \2\
                                    Formic acid (over 85%) \2\
                                    Formic acid mixture (containing up
                                     to 18% Propionic acid and up to 25%
                                     Sodium formate) \2\
                                    Glycolic acid
                                    Glyoxylic acid
                                    n-Heptanoic acid
                                    1,6-Hexanediol distillation
                                     overheads
                                    Hexanoic acid
                                    2-Hydroxy-4-(methylthio)butanoic
                                     acid
                                    Jatropha oil
                                    Long chain alkyl (C13+) salicylic
                                     acid
                                    Metal fatty acid salt
                                    Metal long chain alkyl salt
                                    Methacrylic acid
                                    Microsilica slurry
                                    Naphthenic acid
                                    Neodecanoic acid
                                    Nonanoic acid
                                    Nonanoic, Tridecanoic acid mixture
                                    Octanoic acid (all isomers)
                                    n-Pentanoic acid, 2-Methyl butryic
                                     acid mixture
                                    Pentanoic acid
                                    Propionic acid
                                    Trimethylacetic acid
                                    Undecanoic acid
5. Caustics.......................  Ammonium sulfide solution (45% or
                                     less)
                                    Calcium hypochlorite solutions
                                    Calcium hypochlorite solution (15%
                                     or less)
                                    Calcium hypochlorite solution (more
                                     than 15%)
                                    Caustic potash solution \2\
                                    Caustic soda solution \2\
                                    Cresylate spent caustic
                                    Cresylic acid, sodium salt solution
                                    Kraft black liquor
                                    Kraft pulping liquors
                                    Mercaptobenzothiazol, sodium salt
                                     solution
                                    Potassium hydroxide solution \2\
                                    Sodium acetate, Glycol, Water
                                     mixture (containing Sodium
                                     hydroxide)
                                    Sodium aluminate solution
                                    Sodium borohydride, Sodium hydroxide
                                     solution
                                    Sodium carbonate solutions
                                    Sodium cyanide solution
                                    Sodium hydrosulfide solution \2\
                                    Sodium hydrosulfide, Ammonium
                                     sulfide solution \2\
                                    Sodium hydroxide solution \2\
                                    Sodium hypochlorite solution
                                    Sodium 2-mercaptobenzothiazol
                                     solution
                                    Sodium naphthenate solution
                                    Sodium nitrite solution
                                    Triphenylborane, Caustic soda
                                     solution
                                    Trisodium phosphate solution
                                    Vanillin black liquor
6. Ammonia........................  Ammonia, anhydrous
                                    Ammonia, aqueous
                                    Ammonium hydroxide (28% or less
                                     Ammonia)

[[Page 100]]


                                    Ammonium nitrate, Urea solution
                                     (containing Ammonia)
                                    Urea, Ammonium nitrate solution
                                     (containing Ammonia)
7. Aliphatic Amines...............  Alkenylamine mixtures
                                    Alkyl (greater than C8) amine,
                                     Alkenyl (greater than C12) acid
                                     ester in mineral oil
                                    Alkyl amine (C17 or greater)
                                    Alkyl (C12+) dimethylamine
                                    N-Aminoethylpiperazine
                                    Butylamine (all isomers)
                                    Calcium long chain alkyl phenolic
                                     amine (C8-C40)
                                    Crude piperazine
                                    Cyclohexylamine
                                    Dibutylamine
                                    Diethylamine
                                    Diethylenetriamine \2\
                                    Diisobutylamine
                                    Diisopropylamine
                                    Dimethylamine
                                    Dimethylamine solution (45% or less)
                                    Dimethylamine solution (greater than
                                     45% but not greater than 55%)
                                    Dimethylamine solution (greater than
                                     55% but not greater than 65%)
                                    N,N-Dimethylcyclohexylamine
                                    N,N-Dimethyldodecylamine
                                    Di-n-propylamine
                                    Diphenylamine, reaction product with
                                     2,2,4-Trimethylpentene
                                    Diphenylamines, alkylated
                                    Dodecylamine, Tetradecylamine
                                     mixture \2\
                                    Dodecyldimethylamine,
                                     Tetradecyldimethylamine mixture
                                    Ethoxylated tallow alkyl amine
                                    Ethoxylated tallow amine (95%)
                                    Ethoxylated tallow alkyl amine,
                                     glycol mixture
                                    Ethylamine \2\
                                    Ethylamine solution (72% or less)
                                    Ethyleneamine EA 1302 \2\
                                    N-Ethyl-n-butylamine
                                    N-Ethyl cyclohexylamine
                                    Ethylenediamine \2\
                                    2-Ethyl hexylamine
                                    N-Ethylmethylallylamine
                                    Glyphosate solution (not containing
                                     surfactant)
                                    Hexamethylenediamine
                                    Hexamethylenediamine (molten)
                                    Hexamethylenediamine solution
                                    Hexamethylenetetramine
                                    Hexamethylenetetramine solutions
                                    Hexamethylenimine
                                    HiTec 321
                                    bis-(Hydrogenated tallow
                                     alkyl)methyl amines
                                    Isophorone diamine
                                    Isopropylamine
                                    Isopropylamine (70% or less)
                                     solution
                                    Long chain alkyl amine
                                    Long chain polyetheramine in
                                     alkyl(C2-C4)benzenes
                                    Metam sodium solution
                                    Methylamine solutions (42% or less)
                                    Morpholine \2\
                                    Oleylamine
                                    Pentaethylenehexamine
                                    Pentaethylenehexamine,
                                     Tetraethylenepentamine mixture
                                    Phosphate esters, alkyl (C12-C14)
                                     amine
                                    Polyalkenyl succinic anhydride amine
                                    Polyalkyl alkeneamine succinimide,
                                     molybdenum oxysulfide
                                    Polyethylene polyamines \2\
                                    Polyethylene polyamines (more than
                                     50% C5-C20 paraffin oil)
                                    Poly(iminoethylene)-graft-N-poly
                                     (ethyleneoxy) solution (90% or
                                     less)
                                    Polyisobutenamine in aliphatic (C10-
                                     C14) solvent
                                    Polyolefin amide alkeneamine (C28+)
                                    Polyolefin amide alkeneamine polyol
                                    Poly olefin amine
                                    Poly (C17+) olefin amine
                                    Polyolefin amide alkeneamine/
                                     Molybdenum oxysulfide mixture
                                    Polyoxypropylenediamine (MW 2000)
                                    Propanil, Mesityl oxide, Isophorone
                                     mixture
                                    Propylamine
                                    iso-Propylamine solution

[[Page 101]]


                                    Roundup
                                    Sulfohydrocarbon, long chain (C18+)
                                     alkylamine mixture
                                    Tetraethylenepentamine \2\
                                    Triethylamine
                                    Triethylenetetramine \2\
                                    Trimethylamine solution
                                    Trimethylhexamethylene diamine
                                     (2,2,4- and 2,4,4-)
8. Alkanolamines..................  Alkyl (C12-C16) propoxyamine
                                     ethoxylate
                                    2-(2-Aminoethoxy)ethanol
                                    Aminoethyldiethanolamine,
                                     Aminoethylethanolamine solution
                                    Aminoethylethanolamine
                                    2-Amino-2-methyl-1-propanol
                                    Diethanolamine
                                    Diethylaminoethanol
                                    Diethylethanolamine
                                    Diisopropanolamine
                                    Dimethylethanolamine
                                    Ethanolamine
                                    Ethoxylated alkyloxy alkyl amine
                                    Ethoxylated long chain (C16+)
                                     alkyloxyalkanamine
                                    Isopropanolamine
                                    Isopropanolamine solution
                                    N,N-bis (2-Hydroxyethyl) oleamide
                                    Linear alkyl (C12-C16) propoxyamine
                                     ethoxylate
                                    Methyl diethanolamine
                                    Propanolamine
                                    Triethanolamine \2\
                                    Triisopropanolamine
                                    Ucarsol CR Solvent 302 SG
9. Aromatic Amines................  Alkyl (C8-C9) phenylamine in
                                     aromatic solvents
                                    Amine C-6, morpholine process
                                     residue
                                    Aniline
                                    Calcium long chain alkyl phenolic
                                     amine (C8-C40)
                                    4-Chloro-2-methylphenoxyacetic acid,
                                     Dimethylamine salt solution
                                    Dialkyl (C8-C9) diphenylamines
                                    2,6-Diethylaniline
                                    Dimethylamine salt of 4-Chloro-2-
                                     methylphenoxyacetic acid solution
                                    2,6-Dimethylaniline
                                    Diphenylamine
                                    Diphenylamine (molten)
                                    Diphenylamine, reaction product with
                                     2,2,4-trimethylpentene
                                    Diphenylamines, alkylated
                                    2-Ethyl-6-methyl-N-(1[min]-methyl-2-
                                     methoxyethyl)aniline
                                    N-Methylaniline
                                    2-Methyl-6-ethyl aniline
                                    2-Methyl-5-ethyl pyridine
                                    Methyl pyridine
                                    2-Methylpyridine
                                    3-Methylpyridine
                                    4-Methylpyridine
                                    N-Methyl-2-pyrrolidone \2\
                                    Paraldehyde-Ammonia reaction product
                                    Polyolefin phenolic amine (C28-C250)
                                    Pyridine
                                    Pyridine bases
                                    Toluenediamine
                                    p-Toluidine
10. Amides........................  Acetochlor
                                    Acrylamide solution (50% or less)
                                    Alkenyl(C11+)amide
                                    N,N-Dimethylacetamide
                                    N,N-Dimethylacetamide solution
                                    N,N-Dimethylacetamide solution (40%
                                     or less)
                                    Dimethylformamide
                                    Formamide
                                    N,N-bis(2-Hydroxyethyl) oleamide
                                    Octadecenoamide
                                    Organomolybdenum amide
                                    Polybutenyl succinimide
                                    Polyisobutenyl succinimide
                                    Zinc alkenyl carboxamide
11. Organic Anhydrides............  Acetic anhydride
                                    Alkenylsuccinic anhydride
                                    Alkyl succinic anhydride

[[Page 102]]


                                    Maleic anhydride
                                    Phthalate based polyester polyol
                                    Phthalic anhydride
                                    Polyisobutenyl anhydride adduct
                                    Polyisobutylene succinic anhydride
                                    Polyolefin anhydride
                                    Propionic anhydride
12. Isocyanates...................  Diphenylmethane diisocyanate
                                    Hexamethylene diisocyanate
                                    Isophorone diisocyanate
                                    Polymethylene polyphenyl isocyanate
                                    Toluene diisocyanate
                                    Trimethylhexamethylene diisocyanate
                                     (2,2,4- and 2,4,4-)
13. Vinyl Acetates................  Vinyl acetate
                                    Vinyl ethyl ether
                                    Vinyl neodecanate
                                    Vinyl toluene
14. Acrylates.....................  Butyl acrylate (all isomers)
                                    Butyl/Decyl/Cetyl/Eicosyl
                                     methacrylate mixture
                                    Butyl methacrylate
                                    i-Butyl methacrylate
                                    Butyl methacrylate, Decyl
                                     methacrylate, Cetyl-Eicosyl
                                     methacrylate mixture
                                    Cetyl-Eicosyl methacrylate mixture
                                    Decyl acrylate
                                    Dodecyl methacrylate
                                    Dodecyl-Octadecyl methacrylate
                                     mixture
                                    Dodecyl-Pentadecyl methacrylate
                                     mixture
                                    Ethyl acrylate
                                    2-Ethylhexyl acrylate
                                    Ethyl methacrylate
                                    2-Hydroxyethyl acrylate \2\
                                    Isobutyl methacrylate
                                    Methacrylic resin in Ethylene
                                     dichloride
                                    Methyl acrylate
                                    Methyl methacrylate
                                    Nonyl methacrylate
                                    Polyalkyl acrylate
                                    Polyalkyl(C18-C22) acrylate in
                                     Xylene
                                    Polyalkyl (C10-C18) methacrylate/
                                     Ethylene
                                    Polyalkyl methacrylate
                                    Polyalkyl methacrylate in mineral
                                     oil
                                    Polyalkyl (C10-C20) methacrylate
                                    Polyalkyl methacrylate solution
                                     (containing max 40% active
                                     material)
                                    Propylene copolymer mixture
                                    Roehm monomer 6615
15. Substituted Allyls............  Acrylonitrile \2\
                                    Allyl alcohol \2\
                                    Allyl chloride
                                    1,3-Dichloropropene
                                    Dichloropropene
                                    Dichloropropene, Dichloropropane
                                     mixtures
                                    Methacrylonitrile
16. Alkylene Oxides...............  Butylene oxide
                                    Ethylene oxide, Propylene oxide
                                     mixtures
                                    Ethylene oxide/Propylene oxide
                                     mixture with an Ethylene oxide
                                     content not more than 30% by mass)
                                    Propylene oxide
17. Epichlorohydrins..............  Chlorohydrins (crude)
                                    Epichlorohydrin
18. Ketones.......................  Acetone \2\
                                    Acetophenone
                                    Amyl methyl ketone
                                    Butyl heptyl ketone
                                    Camphor oil
                                    1-(4-Chlorophenyl)-4,4-dimethyl
                                     pentan-3-one \2\
                                    Cyclohexanone
                                    Cyclohexanone, Cyclohexanol mixtures
                                     \2\
                                    Diisobutyl ketone
                                    Ethyl amyl ketone
                                    Epoxy resin
                                    Ketone residue
                                    Isophorone \2\
                                    Mesityl oxide \2\
                                    Methyl amyl ketone

[[Page 103]]


                                    Methyl butyl ketone
                                    Methyl ethyl ketone \2\
                                    Methyl heptyl ketone
                                    Methyl isoamyl ketone
                                    Methyl isobutyl ketone \2\
                                    Methyl propyl ketone
                                    beta-Propriolactone
                                    Trifluralin in Xylene
19. Aldehydes.....................  Acetaldehyde
                                    Acrolein \2\
                                    Butyraldehyde (all isomers)
                                    Crotonaldehyde \2\
                                    Decaldehyde
                                    Ethylhexaldehyde
                                    2-Ethyl-3-propylacrolein \2\
                                    Formaldehyde, Methanol mixtures \2\
                                    Formaldehyde solutions \2\
                                    Furfural
                                    Glutaraldehyde solution
                                    Glyoxal solutions
                                    3-Methyl butyraldehyde
                                    Methylolureas
                                    3-(Methylthio)propionaldehyde
                                    Octyl aldehyde
                                    Paraldehyde
                                    Pentyl aldehyde
                                    Propionaldehyde
                                    Valeraldehyde
20. Alcohols, Glycols.............  Acrylonitrile-Styrene copolymer
                                     dispersion in Polyether polyol
                                    Alcoholic beverages
                                    Alcohol polyethoxylates
                                    Alcohol polyethoxylates, secondary
                                    Alcohols (C13+)
                                    Alcohols (C12+), primary, linear
                                    Alcohols (C12-C13), primary, linear
                                     and essentially linear
                                    Alcohols (C14-C18), primary, linear
                                     and essentially linearAlkyl (C4-C9)
                                     phenols
                                    n-Amyl alcohol
                                    Amyl alcohol, primary
                                    sec--Amyl alcohol
                                    tert- Amyl alcohol
                                    Behenyl alcohol
                                    Bio-fuel blends of Gasoline and
                                     Ethyl alcohol (25% but
                                     <99% by volume)
                                    Brake fluid base mixtures
                                    Brake fluid base mix: Poly(2-
                                     8)alkylene (C2-C3) glycols/
                                     Polyalkylene (C2-C10) glycols
                                     monoalkyl (C1-C4) ethers and their
                                     borate esters1,4-Butanediol
                                    Butyl alcohol \2\ (all isomers)
                                    n-Butyl alcohol
                                    iso-Butyl alcohol
                                    t-Butyl alcohols
                                    Butylene glycol \2\
                                    Cetyl-Stearyl alcohol
                                    Choline chloride solutions
                                    Cyclohexanol
                                    Cyclopentanol
                                    Decyl alcohol (all isomers) \2\
                                    Decyl/Dodecyl/Tetradecyl alcohol
                                     mixture
                                    Diacetone alcohol \2\
                                    Diethyl hexanol
                                    Diethylene glycol
                                    Diethylene glycol dibenzoate
                                    Diisobutyl carbinol
                                    2,2-Dimethylpropane-1,3-diol
                                    Dodecanol
                                    Dodecyl alcohol
                                    Dodecyl hydroxypropyl sulfide
                                    Ethoxylated alcohols, C11-C15
                                    2-Ethoxyethanol
                                    Ethyl alcohol \2\
                                    Ethyl butanol
                                    Ethylene chlorohydrin
                                    Ethylene cyanohydrin
                                    Ethylene glycol \2\
                                    2-Ethylhexanol
                                    Furfuryl alcohol \2\

[[Page 104]]


                                    Glycerine \2\
                                    Glycerine, Dioxanedimethanol mixture
                                    Glycerol monooleate
                                    Glycol
                                    Glycol mixture, crude
                                    Heptanol
                                    Hexamethylene glycol
                                    Hexanol
                                    Hexylene glycol
                                    Hydroxy terminated polybutadiene
                                    Icosa(oxypropane-2,3-diyl)s
                                    Isoamyl alcohol
                                    Isobutyl alcohol
                                    Isopropyl alcohol
                                    Lauryl polyglucose (50% or less)
                                    Methacrylic acid-alkyloxypoly
                                     (alkylene oxide) methacrylate
                                     copolymer sodium salt aqueous
                                     solution (45% or less)
                                    3-Methoxy-1-butanol
                                    Methyl alcohol \2\
                                    Methyl amyl alcohol
                                    alpha-Methylbenzyl alcohol with
                                     acetophenone (15% or less)
                                    Methyl butenol
                                    Methylbutynol
                                    2-Methyl-2-hydroxy-3-butyne
                                    Methyl isobutyl carbinol
                                    3-Methyl-3-methoxybutanol
                                    2-Methyl-1,3-propanediol
                                    Molasses
                                    Nonyl alcohol \2\
                                    Octanol (all isomers) \2\
                                    Octyl alcohol \2\
                                    Penacosa(oxypropane-2,3-diyl)s
                                    Pentadecanol
                                    Polyalkylene oxide polyol
                                    Polybutadiene, hydroxy terminated
                                    Polyglycerol
                                    Polyglycerine, Sodium salts solution
                                     (containing less than 3% Sodium
                                     hydroxide) \2\
                                    Polyolefin amide alkeneamine polyol
                                    Propyl alcohol \2\
                                    Propylene glycol \2\
                                    Rum
                                    Sodium methylate solution (21-30% in
                                     Methanol)
                                    Sorbitol solutions
                                    Stearyl alcohol
                                    Tallow fatty alcohol
                                    Tetradecanol
                                    Tridecanol
                                    Trimethyl nonanol
                                    Trimethylol propane polyethoxylate
                                    Undecanol
                                    Undecyl alcohol
21. Phenols, Cresols..............  Alkylated (C4-C9) hindered phenols
                                    Benzyl alcohol
                                    Carbolic oil
                                    Creosote \2\
                                    Creosote (coal tar) \2\
                                    Creosote (wood tar) \2\
                                    Cresols (all isomers)
                                    Cresylic acid
                                    Cresylic acid dephenolized
                                    Cresylic acid, tar
                                    Dibutylphenols
                                    2,4-Dichlorophenol
                                    Di-tert-butyl phenols
                                    2,4-Di-tert-butyl phenols
                                    2,6-Di-tert-butyl phenols
                                    Dodecyl phenol
                                    o-Ethylphenol
                                    Long chain alkylphenate/phenol
                                     sulfide mixture
                                    Methylene bridged isobutylenated
                                     phanols
                                    Nonyl phenol
                                    Nonyl phenol (48-62%)/Phenol (42-
                                     48%)/Dinonyl phenol (1-10%) mixture
                                    Octyl phenol
                                    Phenol

[[Page 105]]


                                    Xylenols
22. Caprolactam Solutions.........  Caprolactam solution
                                    epsilon-Caprolactam (molten or
                                     aqueous solutions)
23-29. Unassigned.................
30. Olefins.......................  Acrylic acid/ethenesulfonic acid
                                     copolymer with phosphonate groups,
                                     sodium salt solution
                                    Amylene
                                    Aryl polyolefin (C11-C50)
                                    Butadiene
                                    Butadiene, Butylene mixtures (cont.
                                     Acetylenes)
                                    Butadiene Feedstock [Kirby]
                                    Butene
                                    Butene oligomer
                                    Butylene
                                    1,5,9-Cyclododecatriene
                                    1,3-Cyclopentadiene dimer (molten)
                                    Cyclopentadiene, Styrene, Benzene
                                     mixture
                                    Cyclopentene
                                    Decene
                                    Dichloropropene
                                    Dicyclopentadiene
                                    Dicyclopentadiene, Resin Grade, 81-
                                     89%
                                    Diisobutylene
                                    Dipentene
                                    Dodecene
                                    Ethylene
                                    Ethylene-Propylene copolymer
                                    Ethylidene norbornene \2\
                                    1-Heptene
                                    Hexene (all isomers)
                                    Isoprene
                                    Isoprene concentrate (Shell)
                                    Latex (ammonia (1% or less)
                                     inhibited
                                    Methyl acetylene, Propadiene mixture
                                    Methyl butene
                                    Methylcyclopentadiene dimer
                                    2-Methyl-1-pentene
                                    4-Methyl-1-pentene
                                    alpha-Methyl styrene
                                    Myrcene
                                    Nonene
                                    1-Octadecene
                                    Octene
                                    Olefin mixtures
                                    Olefin mixture (C7-C9) C8 rich,
                                     stabilized
                                    Olefin mixtures (C5-C7)
                                    Olefin mixtures (C5-C15)
                                    alpha-Olefins (C6-C18) mixtures
                                    alpha-Olefins (C13+)
                                    1,3-Pentadiene
                                    1,3-Pentadiene (greater than 50%),
                                     Cyclopentene and isomers, mixtures
                                    Pentene
                                    alpha-Pinene
                                    beta-Pinene
                                    Polybutene
                                    Poly(4+)isobutylene
                                    Polyolefin in mineral oil
                                    Polyolefin (molecular weight 300+)
                                    Polypropylene
                                    Poly(5+)propylene
                                    Propylene
                                    Propylene-butylene copolymer
                                    Propylene dimer
                                    Propylene, Propane, MAPP gas mixture
                                    Propylene tetramer
                                    Propylene trimer
                                    Styrene monomer
                                    Tetradecene
                                    Tridecene
                                    Triisobutylene
                                    Tripropylene
                                    Turpentine
                                    Undecene
31. Paraffins.....................  Alkanes (C6-C9)
                                    Alkanes (C10-C26) linear and
                                     branched

[[Page 106]]


                                    Alkanes (C10-C26) linear and
                                     branched (flash point 60
                                     [deg]C)n-Alkanes (C10+)
                                    iso- & cyclo-Alkanes (C10-C11)
                                    iso- & cyclo-Alkanes (C12+)
                                    Aviation alkylates (C8 paraffins and
                                     iso-paraffins BPT 95-120 [deg]C)
                                    Butane
                                    Cycloheptane
                                    Cyclohexane
                                    Cyclopentane
                                    Decane
                                    Dodecane
                                    Ethane
                                    Ethyl cyclohexane
                                    Heptane
                                    Hexane \2\
                                    Isopropylcyclohexane
                                    Methane
                                    Methylcyclohexane
                                    2-Methyl pentane
                                    Mineral oil
                                    Nonane
                                    Octane
                                    Paraffin wax
                                    Pentane
                                    Polyalpha olefins
                                    Polyolefin (molecular weight 300+)
                                    Propane
                                    iso-Propylcyclohexane
                                    Tridecane
                                    Waxes:
                                    Paraffin
32. Aromatic Hydrocarbons.........  Alkyl(C3-C4)benzenes
                                    Alkyl(C5-C8)benzenes
                                    Alkyl(C9+)benzenes
                                    Alkyl acrylate-Vinyl pyridine
                                     copolymer in Toluene
                                    Alkylbenzene, Alkylindane,
                                     Alkylindene mixture (each C12-C17)
                                    Alkylbenzene mixtures (containing at
                                     least 50% of Toluene)
                                    Alkyl toluene
                                    Alkyl (C18+) toluene
                                    Aryl polyolefin (C11-C50)
                                    Benzene
                                    Benzene hydrocarbon mixtures (having
                                     10% Benzene or more)
                                    Benzene, Toluene, Xylene mixtures
                                    Butylbenzene (all isomers)
                                    Butyl phenol, Formaldehyde resin in
                                     Xylene
                                    Butyl toluene
                                    Cumene
                                    Cymene
                                    Decylbenzene
                                    Dialkyl(C10-C14) benzenes
                                    Diethylbenzene
                                    Diisopropylbenzene (all isomers)
                                    Diisopropyl naphthalene
                                    Diphenyl
                                    Dodecylbenzene
                                    Dodecyl xylene
                                    Ethylbenzene
                                    Ethyl toluene
                                    1-Hexadecylnaphthalene, 1, 4-
                                     bis(Hexadecyl)
                                    1,1-Hexadecylnaphthalene/1,4-bis
                                     (hexadecyl) naphthalene mixture
                                    1,n-Hexadecylnaphthalene (90%), 1,4-
                                     Di-n-(hexadecyl-naphthalene (10%)
                                    Isopropylbenzene
                                    Methyl naphthalene (molten)
                                    Naphthalene (molten)
                                    Naphthalene mixture
                                    Naphthalene still residue
                                    1-Phenyl-1-xylyl ethane
                                    Parachlorobenzotrifluoride
                                    Poly(2+)cyclic aromatics
                                    Polyolefin amine in alkylbenzenes
                                     (C2-C4)
                                    Polyolefin amine in aromatic solvent
                                    Propylbenzene
                                    Pseudocumene
                                    Pyrolysis gasoline (containing
                                     Benzene)
                                    C9 Resinfeed (DSM) \2\

[[Page 107]]


                                    Tetradecylbenzene
                                    Tetrahydronaphthalene
                                    1,2,3,5-Tetramethylbenzene
                                    Toluene
                                    Tridecylbenzene
                                    Triethylbenzene
                                    Trimethylbenzene
                                    Undecylbenzene
                                    Xylene
                                    Xylenes, Ethylbenzene mixture
33. Miscellaneous Hydrocarbon       Alachlor
 Mixtures.                          Alachlor technical (90% or more)
                                    Alkylbenzenesulfonic acid, sodium
                                     salt solutions
                                    Alkyl dithiothiadiazole (C6-C24)
                                    Alkyl toluene sulfonic acid, calcium
                                     salts
                                    Alkyl (C18-C28) toluene sulfonic
                                     acid, Calcium salts, high overbase
                                    Alkyl (C18-C28) toluene sulfonic
                                     acid, Calcium salts, low
                                     overbaseAsphalt blending stocks,
                                     roofers flux
                                    Asphalt blending stocks, straight
                                     run residue
                                    Asphalt emulsion
                                    Asphalt, kerosene, and other
                                     components
                                    Bio-fuel blends of Diesel/gas oil
                                     and Alkanes (C10-C26), linear and
                                     branched with a flash point 60 [deg]C (25% but
                                     <99% by volume)
                                    Bio-fuel blends of Diesel/gas oil
                                     and Alkanes (C10-C26), linear and
                                     branched with a flash point <60
                                     [deg]C (25% but <99% by
                                     volume)
                                    Calcuim sulfonate, Calcium
                                     carbonate, Hydrocarbon solvent
                                     mixture
                                    Coal tar
                                    Coal tar distillate
                                    Coal tar, high temperature
                                    Coal tar pitch (molten)
                                    Decahydronaphthalene
                                    Degummed C9 (DOW)
                                    Diphenyl, Diphenyl ether
                                    Distillates
                                    Distillates, flashed feed stocks
                                    Distillates, straight run
                                    Drilling mud (low toxicity) (if
                                     flammable or combustible)
                                    Gas oil, cracked
                                    Gasoline blending stock, alkylates
                                    Gasoline blending stock, reformates
                                    Gasolines:
                                     Automotive (not over 4.23 grams
                                     lead per gal.)
                                     Aviation (not over 4.86 grams lead
                                     per gal.)
                                     Casinghead (natural)
                                     Polymer
                                     Straight run
                                    Jet Fuels:
                                     JP-4
                                     JP-5
                                     JP-8
                                    Kerosene
                                    Maleated ethylene-propylene
                                     copolymer reaction product
                                     [synthetic rubber]
                                    Mineral spirits
                                    Naphtha:
                                     Coal tar solvent
                                     Petroleum
                                     Solvent
                                     Stoddard solvent
                                     Varnish Makers' and Painters'
                                    Oil, fuel:
                                     No. 1
                                     No. 1-D
                                     No. 2
                                     No. 2-D
                                     No. 4
                                     No. 5
                                     No. 6
                                    Oil, misc:
                                     Aliphatic
                                     Aromatic
                                     Clarified
                                     Coal
                                     Crude
                                     Diesel

[[Page 108]]


                                     Gas, high pour
                                     Heartcut distillate
                                     Linseed
                                     Lubricating
                                     Mineral
                                     Mineral seal
                                     Motor
                                     Neatsfoot
                                     Penetrating
                                     Pine
                                     Rosin
                                     Sperm
                                     Spindle
                                     Turbine
                                     Residual
                                     Road
                                     Transformer
                                    Oxyalkylated alkyl phenol
                                     formaldehyde
                                    Petrolatum
                                    Pine oil
                                    Polybutene
                                    Polyolefin amine (C28-C250)
                                    Polyolefin amide alkeneamine (C17+)
                                    Polyolefin amide alkeneamine (C28+)
                                    Polyolefin amide alkeneamine borate
                                     (C28-C250)
                                    Polyolefin amide alkeneamine in
                                     mineral oil
                                    Resin oil, distilled
                                    Sodium petroleum sulfonate
                                    Sulfohydrocarbon (C3-C88)
                                    Waxes:
                                     Petroleum
                                    Sulfurized fat (C14-C20)
                                    Sulfurized polyolefinamide
                                     alkeneamines (C28-C250)
                                    White spirit (low (15-20%) aromatic)
34. Esters........................  Acid oil mixture from soybean, corn
                                     (maize) and sunflower oil refining
                                    Alkane (C14-C17) sulfonic acid,
                                     sodium salt solution
                                    Alkyl(C8+)amine, Alkenyl (C12+) acid
                                     ester mixture
                                    Alkylaryl phosphate mixtures, (more
                                     than 40% Diphenyl tolyl phosphate.
                                     Less than 0.02% ortho-isomer)
                                    Alkyl dithiocarbamate (C19-C35)
                                    Alkyl ester copolymer (C4-C20)
                                    Alkyl ester copolymer (C6-C18)
                                    Alkyl ester copolymer in mineral oil
                                    Alkyl(C7-C9) nitrates \2\
                                    Alkyl (C8-C40) phenol sulfide
                                    Alkyl (C10-C20, saturated and
                                     unsaturated) phosphite
                                    Alkyl sulfonic acid ester of phenol
                                    Alkyl (C18-C28) toluene sulfonic
                                     acid, Calcium salts, borated
                                    Alkylaryl phosphate mixtures (more
                                     than 40%)
                                    Amyl acetate (all isomers)
                                    Amyl acid phosphate
                                    t-Amyl formate
                                    Animal and Fish oils, n.o.s.
                                    Animal and Fish acid oils and
                                     distillates, n.o.s.
                                    Barium long chain alkaryl (C11-C50)
                                     sulfonate
                                    Barium long chain alkyl(C8-
                                     C14)phenate sulfide
                                    Benzene tricarboxylic acid trioctyl
                                     ester
                                    Benzyl acetate
                                    Bio-fuel blends of Diesel/gas oil
                                     and FAME (25% but <99%
                                     by volume)
                                    Bio-fuel blends of Diesel/gas oil
                                     and vegetable oil (25%
                                     but <99% by volume)
                                    Boronated calcium sulfonate
                                    Butyl acetate (all isomers)
                                    Butyl benzyl phthalate
                                    Butyl butyrate (all isomers)
                                    Butyl formate
                                    iso-Butyl isobutyrate
                                    n-Butyl propionate
                                    Butyl stearate
                                    Calcium alkaryl sulfonate (C11-C50)
                                     Calcium alkyl(C9)phenol sulfide,
                                     polyolefin phosphorosulfide mixture
                                    Calcium alkyl (C10-C28)
                                     salicylateCalcium carbonate slurry
                                    Calcium long chain alkaryl sulfonate
                                     (C11-C50)
                                    Calcium long chain alkyl (C5-C10)
                                     phenate
                                    Calcium long chain alkyl (C5-C20)
                                     phenate

[[Page 109]]


                                    Calcium long chain alkyl (C11-C40)
                                     phenate
                                    Calcium long chain alkyl phenate
                                     sulfide (C8-C40)
                                    Calcium long chain alkyl phenates
                                    Calcium long chain alkyl salicylate
                                     (C13+)
                                    Calcium long chain alkyl (C18-C28)
                                     salicylate
                                    Calcium nitrate, Magnesium nitrate,
                                     Potassium chloride solution
                                    Calcium nitrate
                                    Calcium nitrate solutions (50% or
                                     less)
                                    Calcium salts of fatty acids
                                    Calcium stearate
                                    Camelina oil
                                    Cesium formate solution
                                    Cobalt naphthenate in solvent
                                     naphtha
                                    Coconut oil, fatty acid
                                    Coconut oil, fatty acid methyl ester
                                    Copper salt of long chain (C3-C16)
                                     fatty acid
                                    Copper salt of long chain (C17+)
                                     fatty acid
                                    Copper salt of long chain alkanoic
                                     acids
                                    Cottonseed oil, fatty acid
                                    Cyclohexyl acetate
                                    Decyl acetate
                                    Dialkyl(C7-C13) phthalates
                                    Dialkyl(C7-C17) phthalates
                                    Dialkyl thiophosphates sodium salts
                                     solution
                                    Dibutyl hydrogen phosphonate
                                    Dibutyl phthalate
                                    Dibutyl terephthalate
                                    Diethylene glycol butyl ether
                                     acetate
                                    Diethylene glycol dibenzoate
                                    Diethylene glycol ethyl ether
                                     acetate
                                    Diethylene glycol methyl ether
                                     acetate
                                    Diethylene glycol phthalate
                                    Di-(2-ethylhexyl)adipate
                                    Di-(2-ethylhexyl)phthalate
                                    Diethyl phthalate
                                    Diethyl sulfate
                                    Diheptyl phthalate
                                    Dihexyl phthalate
                                    Di-n-hexyl adipate
                                    Diisobutyl phthalate
                                    Diisodecyl phthalate
                                    Diisononyl adipate
                                    Diisononyl phthalate
                                    Diisooctyl phthalate
                                    Dimethyl adipate
                                    Dimethylcyclicsiloxane hydrolyzate
                                    Dimethyl glutarate
                                    Dimethyl hydrogen phosphite \2\
                                    Dimethyl naphthalene sulfonic acid,
                                     sodium salt solution \2\
                                    Dimethyl phthalate
                                    Dimethyl polysiloxane
                                    Dimethyl succinate
                                    Dinonyl phthalate
                                    Dioctyl phthalate
                                    Diphenyl tolyl phosphate, less than
                                     0.02% ortho-isomer)
                                    Dipropylene glycol dibenzoate
                                    Dithiocarbamate ester (C7-C35)
                                    Ditridecyl adipate
                                    Ditridecyl phthalate
                                    2-Dodecenylsuccinic acid,
                                     dipotassium salt solution
                                    Diundecyl phthalate
                                    2-Ethoxyethyl acetate
                                    Ethyl acetate
                                    Ethyl acetoacetate
                                    Ethyl butyrate
                                    2-Ethyl-2-(2,4-dichlorophenoxy)
                                     acetate
                                    2-Ethyl-2-(2,4-dichlorophenoxy)
                                     propionate
                                    s-Ethyl dipropylthiocarbamate
                                    Ethylene carbonate
                                    Ethylene glycol
                                    Ethylene glycol acetate
                                    Ethylene glycol butyl ether acetate
                                    Ethylene glycol diacetate
                                    Ethylene glycol ethyl ether acetate

[[Page 110]]


                                    Ethylene glycol methyl ether acetate
                                    Ethyl-3-ethoxypropionate
                                    Ethyl hexyl phthalate
                                    2-Ethyl-2-(hydroxymethyl) propane-
                                     1,3-diol, C8-C10 ester
                                    Ethyl propionate
                                    Ethyl propionate
                                    Fatty acids (saturated, C14+)
                                    Glycerol polyalkoxylate
                                    Glyceryl triacetate
                                    Glycidyl ester of C10 trialkyl
                                     acetic acid
                                    Gylcidyl ester of tridecylacetic
                                     acid
                                    Heptyl acetate
                                    Hexyl acetate
                                    Isobutyl formate
                                    Isopropyl acetate
                                    Lard
                                    Lauric acid
                                    Lecithin
                                    Magnesium long chain alkaryl
                                     sulfonate (C11-C50)
                                    Magnesium long chain alkyl phenate
                                     sulfide (C8-C20)
                                    Magnesium long chain alkyl phenate
                                     sulfide (C8-C40)
                                    Magnesium long chain alkyl
                                     salicylate (C11+)
                                    Magnesium long chain alkyl
                                     salicylate (C13+)
                                    Mango kernel
                                    3-Methoxybutyl acetate
                                    1-Methoxy-2-propyl acetate
                                    Methyl acetate
                                    Methyl acetoacetate
                                    Methyl amyl acetate
                                    Methyl butyrate
                                    Methyl formate
                                    3-Methyl-3-methoxybutyl acetate
                                    Methyl salicylate
                                    Metolachlor
                                    Naphthalene sulfonic acid, sodium
                                     salt solution (40% or less)
                                    Nitrilotriacetic acid, trisodium
                                     salt solution
                                    Nonyl acetate
                                    Octamethylcyclotetrasiloxane
                                    n-Octyl acetate
                                    Octyl decyl adipate
                                    Oil, edible:
                                      Beechnut
                                      Castor
                                      Cocoa butter
                                      Coconut \2\
                                      Cod liver
                                      Corn
                                      Cotton seed
                                      Fish \2\
                                      Groundnut
                                      Hazelnut
                                      Lard
                                      Lanolin
                                      Nutmeg butter
                                      Olive
                                      Palm \2\
                                      Palm kernel
                                      Peanut
                                      Poppy
                                      Poppy seed
                                      Raisin seed
                                      Rapeseed
                                      Rice bran
                                      Safflower
                                      Salad
                                      Sesame
                                      Soya bean
                                      Sunflower
                                      Sunflower seed
                                      Tucum
                                      Vegetable
                                      Walnut
                                    Oil, misc:
                                      Animal

[[Page 111]]


                                      Coconut oil, fatty actid methyl
                                    ester
                                      Cotton seed oil, fatty acid
                                      Lanolin
                                      Palm kernel oil, fatty acid methyl
                                    ester
                                      Palm oil, methyl ester
                                      Pilchard
                                      Perilla
                                      Soapstock
                                      Soyabean (epoxidized)
                                      Tall
                                      Tall, fatty acid \2\
                                      Tung
                                    Olefin/Alkyl ester copolymer
                                     (molecular weight 2000+)
                                    Oleic acid
                                    Palm acid oil
                                    Palm fatty acid distillate
                                    Palm kernel acid oil
                                    Palm kernel acid oil, methyl
                                     esterPalm kernel oil fatty acid
                                    Palm mid fraction
                                    Palm oil
                                    Palm oil fatty acid
                                    Palm oil fatty acid methyl ester
                                    Palm kernel olein
                                    Palm kernel stearin
                                    Palm olein
                                    Palm stearin
                                    n-Pentyl propionate
                                    Phosphate esters
                                    Poly(2-8)alkylene glycol
                                     monoalkyl(C1-C6) ether acetate
                                    Polydimethylsiloxane
                                    Polyferric sulfate solution
                                    Polymethylsiloxane
                                    Polyolefin amide alkeneamine borate
                                     (C28-C250)
                                    Poly(20)oxyethylene sorbitan
                                     monooleate
                                    Polysiloxane
                                    Polysiloxane/White spirit, low (15-
                                     20%) aromatic
                                    Polyolefin aminoester salt
                                    Polyolefin ester (C28-C250)
                                    Polyolefin phosphorosulfide, barium
                                     derivative (C28-C250)
                                    Potassium formate solution
                                    Potassium formate solution (75% or
                                     more)
                                    Potassium oleate
                                    Potassium salt of polyolefin acid
                                    Propyl acetate
                                    Propylene carbonate
                                    Propylene glycol methyl ether
                                     acetate
                                    Rapeseed oil fatty acid methyl
                                     esters
                                    Rapeseed oil (low erucic acid
                                     containing less than 4% free fatty
                                     acids)
                                    Shea butter
                                    Siloxanes
                                    Sodium acetate, Glycol, Water
                                     mixture (not containing Sodium
                                     hydroxide) \2\
                                    Sodium acetate solution
                                    Sodium alkyl (C14-C17) sulfonates 60-
                                     65% solution
                                    Sodium benzoate solution
                                    Sodium bicarbonate solution (less
                                     than 10%)
                                    Sodium bromide solution (less than
                                     50%)
                                    Sodium dimethyl naphthalene
                                     sulfonate solution \2\
                                    Sodium long chain alkyl salicylate
                                     (C13+)
                                    Sodium naphthalene sulfonate
                                     solution
                                    Sodium petroleum sulfonate
                                    Sodium sulfate solutions
                                    Soyabean oil (epoxidized)
                                    Stearic acid
                                    Tall oil
                                    Tall oil, crude
                                    Tall oil, distilled
                                    Tall oil fatty acid (Resin acids
                                     less than 20%) \2\
                                    Tall oil, pitch
                                    Tall oil soap, crude
                                    Tallow \2\
                                    Tallow fatty acid \2\
                                    Tributyl phosphate
                                    Tricresyl phosphate
                                    Tricresyl phosphate (containing 1%
                                     or more ortho-isomer)

[[Page 112]]


                                    Tricresyl phosphate (containing less
                                     than 1% ortho-isomer)
                                    Tridecanoic acid
                                    Tridecyl acetate
                                    Triethylene glycol dibenzoate
                                    Triethylene glycol di-(2-
                                     ethylbutyrate)
                                    Triethyl phosphate
                                    Triethyl phosphite \2\
                                    Triisooctyl trimellitate
                                    Triisopropylated phenyl phosphates
                                    2,2,4-Trimethyl-1,3-pentanediol
                                     diisobutyrate
                                    2,2,4-Trimethyl-1,3-pentanediol-1-
                                     isobutyrate
                                    2,2,4-Trimethyl-3-pentanol-1-
                                     isobutyrate
                                    Trimethyl phosphite \2\
                                    Trisodium nitrilotriacetate
                                    Trixylyl phosphate
                                    Trixylenyl phosphate
                                    Urea/Ammonium nitrate solution
                                    Vegetable acid oils and distillates,
                                     n.o.s.
                                    Vegetable fatty acid distillates
                                    Vegetable oils, n.o.s.
                                    Waxes:
                                      Carnauba
                                    Zinc alkaryl dithiophosphate (C7-
                                     C16)
                                    Zinc alkyl dithiophosphate (C3-C14)
35. Vinyl Halides.................  Vinyl chloride
                                    Vinylidene chloride
36. Halogenated Hydrocarbons......  Benzyl chloride
                                    Bromochloromethane
                                    Carbon tetrachloride \2\
                                    Catoxid feedstock \2\
                                    Chlorinated paraffins (C10-C13)
                                    Chlorinated paraffins (C14-C17)
                                     (with 50% Chlorine or more, and
                                     less than 1% C13 or shorter chains)
                                    Chlorinated paraffins (C14-C17)
                                     (with 52% chlorine)
                                    Chlorinated paraffins (C18+) with
                                     any level of chlorine
                                    Chlorobenzene
                                    Chlorodifluoromethane
                                    Chloroform
                                    Chlorotoluene
                                    m-Chlorotoluene
                                    o-Chlorotoluene
                                    p-Chlorotoluene
                                    Chlorotoluenes (mixed isomers)
                                    Dibromomethane
                                    Dibutylphenols
                                    3,4-Dichloro-1-butene
                                    Dichlorobenzene (all isomers)
                                    Dichlorodifluoromethane
                                    1,1-Dichloroethane
                                    1,6-Dichlorohexane
                                    Dichloromethane
                                    Dichloropropane
                                    Ethyl chloride
                                    Ethylene dibromide
                                    Ethylene dichloride \2\
                                    Methyl bromide
                                    Methyl chloride
                                    Monochlorodifluoromethane
                                    n-Propyl chloride
                                    Pentachloroethane
                                    Perchloroethylene
                                    1,1,2,2-Tetrachloroethane
                                    1,2,3-Trichlorobenzene
                                    1,2,3-Trichlorobenzene (molten)
                                    1,2,4-Trichlorobenzene
                                    1,1,1-Trichloroethane \2\
                                    1,1,2-Trichloroethane
                                    Trichloroethylene \2\
                                    1,2,3-Trichloropropane
                                    1,1,2-Trichloro-1,2,2-
                                     trifluoroethane
37. Nitriles......................  Acetonitrile
                                    Acetonitrile (low purity grade)
                                    Adiponitrile
                                    Lactonitrile solution (80% or less)

[[Page 113]]


                                    2-Methylglutaronitrile
                                    2-Methylglutaronitrile with 2-
                                     Ethylsuccinonitrile (12% or less)
                                    Propionitrile
                                    Tallow nitrile
38. Carbon Disulfide..............  Carbon disulfide
39. Sulfolane.....................  Sulfolane
40. Glycol Ethers.................  Alcohol (C9-C11) poly (2.5-9)
                                     ethoxylates
                                    Alcohol (C6-C17) (secondary) poly (3-
                                     6) ethoxylates
                                    Alcohol (C6-C17) (secondary) poly (7-
                                     12) ethoxylates
                                    Alcohol (C12-C16) poly (1-6)
                                     ethoxylates
                                    Alcohol (C12-C16) poly (7-19)
                                     ethoxylates
                                    Alcohol (C12-C16) poly (20+)
                                     ethoxylates
                                    Alkyl (C7-C11) phenol poly(4-
                                     12)ethoxylate
                                    Alkyl (C9-C15) phenyl propoxylate
                                    Diethylene glycol \2\
                                    Diethylene glycol butyl ether
                                    Diethylene glycol dibutyl ether
                                    Diethylene glycol diethyl ether
                                    Diethylene glycol ethyl ether
                                    Diethylene glycol methyl ether
                                    Diethylene glycol n-hexyl ether
                                    Diethylene glycol phenyl ether
                                    Diethylene glycol propyl ether
                                    Dipropylene glycol
                                    Dipropylene glycol butyl ether
                                    Dipropylene glycol methyl ether
                                    Ethoxy triglycol
                                    Ethylene glycol hexyl ether
                                    Ethylene glycol methyl butyl ether
                                    Ethylene glycol monoalkyl ethers
                                    Ethylene glycol tert-butyl ether
                                    Ethylene glycol butyl ether
                                    Ethylene glycol dibutyl ether
                                    Ethylene glycol ethyl ether
                                    Ethylene glycol isopropyl ether
                                    Ethylene glycol methyl ether
                                    Ethylene glycol phenyl ether
                                    Ethylene glycol phenyl ether,
                                     Diethylene glycol phenyl ether
                                     mixture
                                    Ethylene glycol propyl ether
                                    Glucitol/glycerol blend propoxylated
                                     (containing less than 10% amines)
                                    Glycerol, ethoxylated
                                    Glycerol, propoxylated
                                    Glycerol, propoxylated and
                                     ethoxylated
                                    Glycerol/Sucrose blend propoxylated
                                     and ethoxylated
                                    Hexaethylene glycol
                                    alpha-Hydro-omega-hydroxytetradeca
                                     (oxytetramethylene)
                                    Methoxy triglycol
                                    Nonyl phenol poly(4+)ethoxylates
                                    Pentaethylene glycol methyl ether
                                    Polyalkylene glycol butyl ether
                                    Polyalkylene glycols, Polyalkylene
                                     glycol monoalkyl ethers mixtures
                                    Polyether glycol (MW 600-700)
                                     (TETRAETHANE 650)
                                    Polyether glycol (MW 950-1050)
                                     (TETRAETHANE 1000)
                                    Polyether glycol (MW 1350-1450)
                                     (TETRAETHANE 1400)
                                    Polyether glycol (MW 1900-2100)
                                     (TETRAETHANE 2000)
                                    Polyether glycol (MW 2825-2975)
                                     (TETRAETHANE 2900)
                                    Polyethylene glycols
                                    Polyethylene glycol dimethyl ether
                                    Poly(ethylene glycol) methylbutenyl
                                     ether (MW1000)
                                    Poly(2-8)alkylene glycol
                                     monoalkyl(C1-C6) ether
                                    Poly(2-8)alkylene glycol
                                     monoalkyl(C1-C6) ether acetate
                                    Polyethylene glycol monoalkyl ether
                                    Polypropylene glycol methyl ether
                                    Polypropylene glycols
                                    Poly(tetramethylene ether) glycols
                                     (MW 950-1050)
                                    Polytetramethylene ether glycol
                                    n-Propoxypropanol
                                    Propylene glycol monoalkyl ether
                                    Propylene glycol ethyl ether
                                    Propylene glycol methyl ether
                                    Propylene glycol n-butyl ether
                                    Propylene glycol phenyl ether
                                    Propylene glycol propyl ether
                                    Tetraethylene glycol

[[Page 114]]


                                    Tetraethylene glycol methyl ether
                                    Triethylene glycol
                                    Triethylene glycol butyl ether
                                    Triethylene glycol butyl ether
                                     mixture
                                    Triethylene glycol ether mixture
                                    Triethylene glycol ethyl ether
                                    Triethylene glycol methyl ether
                                    Tripropylene glycol
                                    Tripropylene glycol methyl ether
41. Ethers........................  Alcohol (C12-C13, branched and
                                     linear) poly (4-8) propoxy
                                     sulfates, sodium salt 25-30%
                                     solution
                                    Alkaryl polyether (C9-C20)
                                    tert-Amyl methyl ether
                                    Brominated Epoxy Resin in Acetone
                                    Butyl ether
                                    n-Butyl ether-Dichloroethyl ether
                                    2,2[min]-Dichloroisopropyl
                                     etherDiethyl ether
                                    Diethylene glycol propyl ether
                                    Diglycidyl ether of Bisphenol A
                                    Diglycidyl ether of Bisphenol F
                                    Dimethyl furan
                                    1,4-Dioxane
                                    Diphenyl ether
                                    Diphenyl ether, Diphenyl phenyl
                                     ether mixture
                                    Ethyl tert-butyl ether
                                    Ethyl ether
                                    Isopropyl ether
                                    Long chain alkaryl polyether (C11-
                                     C20)
                                    Methyl-tert-butyl ether \2\
                                    Methyl tert-pentyl ether
                                    Polyether (molecular weight 2000+)
                                    Polyether, borated
                                    Polyether polyols
                                    Poly(oxyalkylene)alkenyl ether
                                     (MW1000)
                                    Polyoxybutylene alcohol
                                    Propyl ether
                                    Tetrahydrofuran
                                    1,3, 5-Trioxane
42. Nitrocompounds................  o-Chloronitrobenzene
                                    Dinitrotoluene
                                    Nitrobenzene
                                    Nitroethane
                                    Nitroethane (80%)/Nitropropane (20%)
                                    Nitroethane, 1-Nitropropane mixture
                                    Nitropropane
                                    Nitropropane, Nitroethane mixtures
                                    Nitrophenol (mixed isomers)
                                    o- or p-Nitrotoluenes
43. Miscellaneous Water Solutions.  Alkyl (C8-C10)/(C12-C14):(40% or
                                     less/60% or more) polyglucoside
                                     solution (55% or less)
                                    Alkyl (C8-C10)/(C12-C14):(50%/50%)
                                     polyglucoside solution (55% or
                                     less)
                                    Alkyl (C8-C10)/(C12-C14):(60% or
                                     more/40% or less) polyglucoside
                                     solution (55% or less)
                                    Alkyl (C8-C10) polyglucoside
                                     solution (65% or less)
                                    Alkyl (C12-C14) polyglucoside
                                     solution (55% or less)
                                    Alkyl polyglucoside solutions
                                    Aluminum hydroxide, sodium
                                     hydroxide, sodium carbonate
                                     solution (40% or less)
                                    Aluminum sulfate solution \2\
                                    2-Amino-2-hydroxymethyl-1,3-
                                     propanediol solution
                                    Ammonium bisulfite solution \2\
                                    Ammonium chloride solution (less
                                     than 25%) drilling brines
                                    Ammonium chloride solution (less
                                     than 25%)
                                    Ammonium lignosulfonate solution
                                    Ammonium nitrate, Urea solution (not
                                     containing Ammonia)
                                    Ammonium polyphosphate solution
                                    Ammonium sulfate solution
                                    Ammonium thiosulfate solution (60%
                                     or less)
                                    Barium sulfate slurry
                                    Calcium bromide solution
                                    Calcium chloride solution
                                    Calcium formate solution
                                    Calcium lignosulfonate solution
                                    Calcium lignosulfonate solution
                                     (free alkali content 1% or less)
                                    Caramel solutions
                                    Clay slurry

[[Page 115]]


                                    Coal slurry
                                    Corn syrup
                                    Dextrose solution
                                    2,4-Dichlorophenoxyacetic acid,
                                     Diethanolamine salt solution
                                    2,4-Dichlorophenoxyacetic acid,
                                     Triisopropanolamine salt solution
                                     \2\
                                    Diethanolamine salt of 2,4-
                                     Dichlorophenoxyacetic acid solution
                                    Diethylenetriamine pentaacetic acid,
                                     pentasodium salt solution
                                    Dodecyl diphenyl ether disulfonate
                                     solution
                                    Drilling brine (containing Calcium,
                                     Potassium, or Sodium salts)
                                    Drilling brine (containing Zinc
                                     salts)
                                    Drilling brines, including: Calcium
                                     bromide solution, Calcium chloride
                                     solution and Sodium chloride
                                     solution
                                    Drilling mud (low toxicity) (if non-
                                     flammable or non-combustible)
                                    Ethylenediaminetetracetic acid,
                                     tetrasodium salt solution
                                    Ethylene-Vinyl acetate copolymer
                                     emulsion
                                    Ferric hydroxyethylethylenediamine
                                     triacetic acid, trisodium salt
                                     solution \2\
                                    Ferrous chloride solution (less than
                                     40%, containing less than 10%
                                     Manganese and Aluminum chlorides)
                                    Fish solubles (water based fish meal
                                     extracts)
                                    Fructose solution
                                    Fumaric adduct of Rosin, water
                                     dispersion
                                    Hexamethylenediamine adipate
                                     solution
                                    N-(Hydroxyethyl)ethylene diamine
                                     triacetic acid, trisodium salt
                                     solution
                                    Kaolin clay slurry
                                    Latex: Carboxylated Styrene-
                                     Butadiene copolymer; Styrene-
                                     butadiene rubber
                                    Latex, liquid synthetic
                                    Lignin liquor
                                    Ligninsulfonic acid, magnesium salt
                                     solution
                                    Liquid Streptomyces solubles
                                    L-Lysine solution (60% or less)
                                    Magnesium nitrate solution (66.7%)
                                    N-Methylglucamine solution
                                    N-Methylglucamine solution (70% or
                                     less)
                                    Naphthenic acid, sodium salt
                                     solution
                                    Polyacrylic acid solution (40% or
                                     less)
                                    Potassium chloride solution
                                    Potassium chloride solution (less
                                     than 26%)
                                    Potassium thiosulfate solution
                                    Potassium thiosulfate solution (50%
                                     or less)
                                    Rosin soap (disproportionated)
                                     solution
                                    Sewage sludge, treated
                                    Sodium alkyl sulfonate solution
                                    Sodium bromide solution (less than
                                     50%)
                                    Sodium hydrogen sulfite solution
                                    Sodium lignosulfonate solution
                                    Sodium polyacrylate solution \2\
                                    Sodium salt of Ferric
                                     hydroxyethylethylenediamine
                                     triacetic acid solution
                                    Sodium silicate solution \2\
                                    Sodium sulfide solution
                                    Sodium sulfite solution
                                    Sodium sulfite solution (25% or
                                     less)
                                    Sodium tartrates, Sodium succinates
                                     solution
                                    Sulfonated polyacrylate solutions
                                     \2\
                                    Tall oil soap (disproportionated)
                                     solution
                                    Tetrasodium salt of EDTA solution
                                    Titanium dioxide slurry
                                    Triisopropanolamine salt of 2,4-
                                     Dichlorophenoxyacetic acid solution
                                    Urea, Ammonium nitrate solution (not
                                     containing Ammonia)
                                    Urea, Ammonium phosphate solution
                                    Urea solution
                                    Vegetable protein solution
                                     (hydrolysed)
                                    Water
------------------------------------------------------------------------
Notes:
\1\ Because of very high reactivity or unusual conditions of carriage or
  potential compatibility problems, this commodity is not assigned to a
  specific group in Figure 1 to 46 CFR part 150 (Compatibility Chart).
\2\ See Appendix I to 46 CFR part 150 (Exceptions to the Chart).


[[Page 116]]



          Sec. Appendix I to Part 150--Exceptions to the Chart

    (a) The binary combinations listed below have been tested as
prescribed in Appendix III and found not to be dangerously reactive.
These combinations are exceptions to the Compatibility Chart (Figure 1)
and may be stowed in adjacent tanks.

------------------------------------------------------------------------
         Member of reactive group                  Compatible with
------------------------------------------------------------------------
Acetone (18)..............................  Diethylenetriamine (7)

Acetone cyanohydrin (0)...................  Acetic acid (4)

Acrylonitrile (15)........................  Triethanolamine (8)

1,3-Butylene glycol (20)..................  Morpholine (7)

1,4-Butylene glycol (20)..................  Ethylamine (7)
                                            Triethanolamine (8)

gamma-Butyrolactone (0)...................  N-Methyl-2-pyrrolidone (9)

Caustic potash, 50% or less (5)...........  Isobutyl alcohol (20)
                                            Ethyl alcohol (20)
                                            Ethylene glycol (20)
                                            Isopropyl alcohol (20)
                                            Methyl alcohol (20)
                                            iso-Octyl alcohol (20)

Caustic soda, 50% or less (5).............  Butyl alcohol (20)
                                            tert-Butyl alcohol, Methanol
                                             mixtures
                                            Decyl alcohol (20)
                                            iso-Decyl alcohol (20)
                                            Diacetone alcohol (20)
                                            Diethylene glycol (40)
                                            Dodecyl alcohol (20)
                                            Ethyl alcohol (20)
                                            Ethyl alcohol (40%, whiskey)
                                             (20)
                                            Ethylene glycol (20)
                                            Ethylene glycol, Diethylene
                                             glycol mixture (20)
                                            Ethyl hexanol (Octyl
                                             alcohol) (20)
                                            Methyl alcohol (20)
                                            Nonyl alcohol (20)
                                            iso-Nonyl alcohol (20)
                                            Propyl alcohol (20)
                                            iso-Propyl alcohol (20)
                                            Propylene glycol (20)
                                            Sodium chlorate solution (0)
                                            iso-Tridecanol (20)

tert-Dodecanethiol (0)....................  Acrylonitrile (15)
                                            Diisodecyl phthalate (34)
                                            Methyl ethyl ketone (18)
                                            iso-Nonyl alcohol (20)
                                            Perchloroethylene (36)
                                            iso-Propyl alcohol (20)
                                            Tall oil, crude
Dodecyl and Tetradecylamine mixture (7)...  Tall oil, fatty acid (34)

Ethylenediamine (7).......................  Butyl alcohol (20)
                                            tert-Butyl alcohol (20)
                                            Butylene glycol (20)
                                            Creosote (21)
                                            Diethylene glycol (40)
                                            Ethyl alcohol (20)
                                            Ethylene glycol (20)
                                            Ethyl hexanol (20)
                                            Glycerine (20)
                                            Isononyl alcohol (20)
                                            Isophorone (18)
                                            Methyl butyl ketone (18)
                                            Methyl iso-butyl ketone (18)
                                            Methyl ethyl ketone (18)
                                            Propyl alcohol (20)
                                            Propylene glycol (20)

Oleum (0).................................  Hexane (31)
                                            Dichloromethane (36)
                                            Perchloroethylene (36)

1,2-Propylene glycol (20).................  Diethylenetriamine (7)
                                            Polyethylene polyamines (7)
                                            Triethylenetetramine (7)

Sodium dichromate, 70% (0)................  Methyl alcohol (20)

Sodium hydrosulfide solution (5)..........  Methyl alcohol (20)
                                            Iso-Propyl alcohol (20)

Sulfuric acid (2).........................  Coconut oil (34)
                                            Coconut oil acid (34)
                                            Palm oil (34)
                                            Tallow (34)

Sulfuric acid, 98% or less (2)............  Choice white grease tallow
                                             (34)
------------------------------------------------------------------------

    (b) The binary combinations listed below have been determined to be
dangerously reactive, based on either data obtained in the literature or
on laboratory testing which has been carried out in accordance with
procedures prescribed in Appendix III. These combinations are exceptions
to the Compatibility Chart (Figure 1) and may not be stowed in adjacent
tanks.

Acetone cyanohydrin (0) is not compatible with Groups 1-12, 16, 17 and
22.

Acrolein (19) is not compatible with Group 1, Non-Oxidizing Mineral
Acids.

Acrylic acid (4) is not compatible with Group 9, Aromatic Amines.
Acrylonitrile (15) is not compatible with Group 5 (Caustics).

Alkylbenzenesulfonic acid (0) is not compatible with Groups 1-3, 5-9,
15, 16, 18, 19, 30, 34, 37, and strong oxidizers.

Allyl alcohol (15) is not compatible with Group 12, Isocyanates.

Alkyl(C7-C9) nitrates (34) is not compatible with Group 1, Non-oxidizing
Mineral Acids.

Aluminum sulfate solution (43) is not compatible with Groups 5-11.

Ammonium bisulfite solution (43) is not compatible with Groups 1, 3, 4,
and 5.

Benzenesulfonyl chloride (0) is not compatible with Groups 5-7, and 43.

1,4-Butylene glycol (20) is not compatible with Caustic soda solution,
50% or less (5).
gamma-Butyrolactone (0) is not compatible with Groups 1-9.

C9 Resinfeed (DSM) (32) is not compatible with Group 2, Sulfuric acid.

Carbon tetrachloride (36) is not compatible with Tetraethylenepentamine
or Triethylenetetramine, both Group 7, Aliphatic amines.

Catoxid feedstock (36) is not compatible with Group 1, 2, 3, 4, 5, or
12.

Caustic soda solution, 50% or less (5) is not compatible with 1,4-
Butylene glycol (20).


[[Page 117]]


1-(4-Chlorophenyl)-4,4-dimethyl pentan-3-one (18) is not compatible with
Group 5 (Caustics) or 10 (Amides).

Crotonaldehyde (19) is not compatible with Group 1, Non-Oxidizing
Mineral Acids.

Cyclohexanone, Cyclohexanol mixture (18) is not compatible with Group
12, Isocyanates.

2,4-Dichlorophenoxyacetic acid, Triisopropanolamine salt solution (43)
is not compatible with Group 3, Nitric Acid.

2,4-Dichlorophenoxyacetic acid, Dimethylamine salt solution (0) is not
compatible with Groups 1-5, 11, 12, and 16.

Diethylenetriamine (7) is not compatible with 1,2,3-Trichloropropane,
Group 36, Halogenated hydrocarbons.

Dimethyl hydrogen phosphite (34) is not compatible with Groups 1 and 4.

Dimethyl naphthalene sulfonic acid, sodium salt solution (34) is not
compatible with Group 12, Formaldehyde, and strong oxidizing agents.
Dodecylbenzenesulfonic acid (0) is not compatible with oxidizing agents
and Groups 1, 2, 3, 5, 6, 7, 8, 9, 15, 16, 18, 19, 30, 34, and 37.

Ethylenediamine (7) and Ethyleneamine EA 1302 (7) are not compatible
with either Ethylene dichloride (36) or 1,2,3-Trichloropropane (36).

Ethylene dichloride (36) is not compatible with Ethylenediamine (7) or
Ethyleneamine EA 1302 (7).

Ethylidene norbornene (30) is not compatible with Groups 1-3 and 5-8.

2-Ethyl-3-propylacrolein (19) is not compatible with Group 1, Non-
Oxidizing Mineral Acids.

Ethyl tert-butyl ether (41) is not compatible with Group 1, Non-
oxidizing mineral acids.

Ferric hydroxyethylethylenediamine triacetic acid, Sodium salt solution
(43) is not compatible with Group 3, Nitric acid.
Fish oil (34) is not compatible with Sulfuric acid (2).

Formaldehyde (over 50%) in Methyl alcohol (over 30%) (19) is not
compatible with Group 12, Isocyanates.

Formic acid (4) is not compatible with Furfural alcohol (20).

Furfuryl alcohol (20) is not compatible with Group 1, Non-Oxidizing
Mineral Acids and Formic acid (4).

2-Hydroxyethyl acrylate (14) is not compatible with Group 5, 6, or 12.

Isophorone (18) is not compatible with Group 8, Alkanolamines.

Magnesium chloride solution (0) is not compatible with Groups 2, 3, 5, 6
and 12.

Mesityl oxide (18) is not compatible with Group 8, Alkanolamines.

Methacrylonitrile (15) is not compatible with Group 5 (Caustics).

Methyl tert-butyl ether (41) is not compatible with Group 1, Non-
oxidizing Mineral Acids.

NIAX POLYOL APP 240C (0) is not compatible with Group 2, 3, 5, 7, or 12.

o-Nitrophenol (0) is not compatible with Groups 2, 3, and 5-10.

Octyl nitrates (all isomers), see Alkyl(C7-C9) nitrates.

Oleum (0) is not compatible with Sulfuric acid (2) and 1,1,1-
Trichloroethane (36).

Phthalate based polyester polyol (0) is not compatible with group 2, 3,
5, 7 and 12.

Polyglycerine, Sodium salts solution (20) is not compatible with Groups
1, 4, 11, 16, 17, 19, 21 and 22.

Propylene, Propane, MAPP gas mixture (containing 12% or less MAPP gas)
(30) is not compatible with Group 1 (Non-oxidizing mineral acids), Group
36 (Halogenated hydrocarbons), nitrogen dioxide, oxidizing materials, or
molten sulfur.

Sodium acetate, Glycol, Water mixture (1% or less Sodium hydroxide) (34)
is not compatible with Group 12 (Isocyanates).

Sodium chlorate solution (50% or less) (0) is not compatible with Groups
1-3, 5, 7, 8, 10, 12, 13, 17 and 20.

Sodium dichromate solution (70% or less) (0) is not compatible with
Groups 1-3, 5, 7, 8, 10, 12, 13, 17 and 20.

Sodium dimethyl naphthalene sulfonate solution (34) is not compatible
with Group 12, Formaldehyde and strong oxidizing agents.

Sodium hydrogen sulfide, Sodium carbonate solution (0) is not compatible
with Groups 6 (Ammonia) and 7 (Aliphatic amines).

Sodium hydrosulfide (5) is not compatible with Groups 6 (Ammonia) and 7
(Aliphatic amines).

Sodium hydrosulfide, Ammonium sulfide solution (5) is not compatible
with Groups 6 (Ammonia) and 7 (Aliphatic amines).

Sodium polyacrylate solution (43) is not compatible with Group 3, Nitric
Acid.

Sodium silicate solution (43) is not compatible with Group 3, Nitric
Acid.

Sodium sulfide, hydrosulfide solution (0) is not compatible with Groups
6 (Ammonia) and 7 (Aliphatic amines).

Sodium thiocyanate (56% or less) (0) is not compatible with Groups 1-4.

Sulfonated polyacrylate solution (43) is not compatible with Group 5
(Caustics).

Sulfuric acid (2) is not compatible with Fish oil (34), or Oleum (0).

Tall oil fatty acid (Resin acids less than 20%) (34) is not compatible
with Group 5, Caustics.

Tallow fatty acid (34) is not compatible with Group 5, Caustics.


[[Page 118]]


Tetraethylenepentamine (7) is not compatible with Carbon tetrachloride,
Group 36, Halogenated hydrocarbons.

1,2,3-Trichloropropane (36) is not compatible with Diethylenetriamine,
Ethylenediamine, Ethyleaneamine EA 1302, or Triethylenetetramine, all
Group 7, Aliphatic amines.

1,1,1-Trichloroethane (36) is not compatible with Oleum (0).

Trichloroethylene (36) is not compatible with Group 5, Caustics.

Triethylenetetramine (7) is not compatible with Carbon tetrachloride, or
1,2,3-Trichloropropane, both Group 36, Halogenated hydrocarbons.

Triethyl phosphite (34) is not compatible with Groups 1, and 4.

Trimethyl phosphite (34) is not compatible with Groups 1 and 4.

1,3,5-Trioxane (41) is not compatible with Group 1 (non-oxidizing
mineral acids) and Group 4 (Organic acids).

[CGD 88-100, 54 FR 40012, Sept. 29, 1989 as amended by CGD 88-100, 55 FR
17277, Apr. 24, 1990; CDG 92-100, 59 FR 17026, Apr. 11, 1994; CGD 94-
902, 60 FR 34043, June 29, 1995; CGD 95-900, 60 FR 34050, June 29, 1995;
USCG 2000-7079, 65 FR 67182, Nov. 8, 2000]

    Effective Date Note: By USCG-2013-0423, 78 FR 50205, Aug. 16, 2013,
appendix I to part 150 was revised, effective Sept. 16, 2013. At 78 FR
56837, Sept. 16, 2013, the effectiveness was delayed until Jan. 16,
2014. At 79 FR 2106, Jan. 13, 2014, the effectiveness was delayed until
Jan. 16, 2015. For the convenience of the user, the revised text is set
forth as follows:

             Appendix I to Part 150--Exceptions to the Chart

    (a) The binary combinations listed below have been tested as
prescribed in Appendix III to part 150 and found not to be dangerously
reactive. These combinations are exceptions to Figure 1 of part 150
(Compatibility Chart) and may be stowed in adjacent tanks.

------------------------------------------------------------------------
     Member of reactive group                 Compatible with
------------------------------------------------------------------------
Acetone (18).....................  Diethylenetriamine (7).
Acetone cyanohydrin (0)..........  Acetic acid (4).
Acrylonitrile (15)...............  Triethanolamine (8).
n-Butyl alcohol (20).............  Caustic Potash (50% or less).
1,3-Butylene glycol (20).........  Morpholine (7).
1,4-Butylene glycol (20).........  Ethylamine (7).
                                   Triethanolamine (8).
gamma-Butyrolactone (0)..........  N-Methyl-2-pyrrolidone (9).
Caustic potash, 50% or less (5)..  Isobutyl alcohol (20).
                                   Ethyl alcohol (20).
                                   n-Butyl alcohol (20).
                                   Ethylene glycol (20).
                                   Isopropyl alcohol (20).
                                   Methyl alcohol (20).
                                   iso-Octyl alcohol (20).
                                   Propylene glycol (20).
Caustic soda, 50% or less (5)....  Acrylonitrile/Styrene copolymer
                                    dispersion in Polyether polyol (20).
                                   iso-Butyl alcohol (20).
                                   Butyl alcohol (20).
                                   tert-Butyl alcohol, Methanol
                                    mixtures.
                                   Decyl alcohol (20).
                                   Cetyl alcohol (20).
                                   Alcohol (C12-C16) poly(1-
                                    6)ethoxylates) (20).
                                   iso-Decyl alcohol (20).
                                   Diacetone alcohol (20).
                                   Diethylene glycol (40).
                                   Dodecyl alcohol (20).
                                   Ethyl alcohol (20).
                                   Ethyl alcohol (40%, whiskey) (20).
                                   Ethylene glycol (20).
                                   Ethylene glycol, Diethylene glycol
                                    mixture (20).
                                   Ethyl hexanol (Octyl alcohol) (20).
                                   Methyl alcohol (20).
                                   Nonyl alcohol (20).
                                   iso-Decyl alcohol (20).
                                   iso-Nonyl alcohol (20).
                                   Propyl alcohol (20).
                                   iso-Propyl alcohol (20).
                                   Propylene glycol (20).
                                   Sodium chlorate solution (0).
                                   iso-Tridecanol (20).
1,1-Dichloroethane (36)..........  Dimethyl disulfide (0).

[[Page 119]]


Dimethyl disulfide (0)...........  Acetic acid (4).
                                   Acetic anhydride (11).
                                   Acetone (18).
                                   Acrylates (14).
                                   Acrylic acid (4).
                                   Alcohols, Glycols (20).
                                   Aromatic hydrocarbons (32).
                                   Benzene (32).
                                   Cyclohexanone (18).
                                   Diisononyl phthalate (34).
                                   Esters (34).
                                   Ethyl acetate (34).
                                   Ethyl acrylate (14).
                                   Ethyl dichloride (36) [1,1-
                                    Dichloroethane].
                                   Ethylene cyanohydrin (20).
                                   Ethylene glycol ethyl ether acetate
                                    (34) [2-Ethoxyethyl acetate].
                                   Formic acid (4).
                                   Halogenated hydrocarbons (36).
                                   Ketones (18).
                                   Mesityl oxide, Methyl ethyl ketone
                                    (18).
                                   Octene, Olefins (30).
                                   Organic acids (4).
                                   Organic anhydrides (11).
                                   Paraffins (31).
                                   Phenol (21).
                                   Phenols, Cresols (21).
                                   Trichloroethylene (36).
Diphenylmethane diisocyanate (12)  Perchloroethylene (36).
                                   Dichloromethane (36).
                                   2,2-Dimethylpropane-1,3-diol (20).
                                   Polypropylene glycol (40).
                                   Trichloroethylene (36).
tert-Dodecanethiol (0)...........  Acetone (18).
                                   Acrylonitrile (15).
                                   2-Butoxyethanol (20).
                                   n-Butyl acrylate (14).
                                   Caustic soda solution (50%) (5).
                                   Chloroform (36).
                                   iso-Decyl alcohol (20).
                                   Dichloromethane (36).
                                   Diglycidyl ether of Bisphenol A (41).
                                   Diisodecyl phthalate (34).
                                   Diglycidyl ether of Bisphenol A (41).
                                   Dichloromethane (36).
                                   Diisodecyl phthalate (DIDP) (34).
                                   Dipropylene glycol (40).
                                   Epichlorohydrin (17).
                                   Ethyl acrylate (14).
                                   Methanol (20).
                                   Methyl ethyl ketone (18).
                                   Naphtha, Solvent (33).
                                   iso-Nonyl alcohol (20).
                                   Perchloroethylene (36).
                                   iso-Propyl alcohol (20).
                                   iso-Propylamine solution (70%) (7).
                                   Propylene glycol methyl ether (40).
                                   Propylene glycol methyl ether acetate
                                    (34).
                                   Tall oil, crude (34).
                                   Toluene (32).
                                   Toluene diisocyanate (TDI) (12).
                                   White mineral oil (Carnation oil)
                                    (33).
Dodecyl and Tetradecylamine        Tall oil, fatty acid (34).
 mixture (7).
Ethylenediamine (7)..............  Butyl alcohol (20).
                                   tert-Butyl alcohol (20).
                                   Butylene glycol (20).
                                   Creosote (21).
                                   Diethylene glycol (40).
                                   Ethyl alcohol (20).
                                   Ethylene glycol (20).
                                   Ethyl hexanol (20).
                                   Fatty alcohols (C12-C14).
                                   Glycerine (20).
                                   Isononyl alcohol (20).
                                   Isophorone (18).

[[Page 120]]


                                   Methyl butyl ketone (18).
                                   Methyl iso-butyl ketone (18).
                                   Methyl ethyl ketone (18).
                                   Propyl alcohol (20).
                                   Propylene glycol (20).
Lactic acid (0)..................  Acetic acid (4).
                                   Benzene (32).
                                   Ethanol (20).
                                   Polypropylene glycol (40).
                                   Vinyl acetate (13).
Oleum (0)........................  Hexane (31).
                                   Dichloromethane (36).
                                   Perchloroethylene (36).
1,2-Propylene glycol (20)........  Diethylenetriamine (7).
                                   Polyethylene polyamines (7).
                                   Triethylenetetramine (7).
Sodium cresylate as Cresylate      Methyl alcohol (20).
 spent caustic (5).
Sodium dichromate, 70% (0).......  Methyl alcohol (20).
Sodium dichromate, 69% (0).......  1-Hexene (30).
Sodium hydrogen sulfide solution   iso-Propyl alcohol (20).
 (5).
Sodium hydrosulfide solution (5).  Methyl alcohol (20).
                                   Iso-Propyl alcohol (20).
Sulfuric acid (2)................  Coconut oil (34).
                                   Coconut oil acid (34).
                                   Palm oil (34).
                                   Tallow (34).
Sulfuric acid, 98% or less (2)...  Choice white grease tallow (34).
------------------------------------------------------------------------

    (b) The binary combinations listed below have been determined to be
dangerously reactive, based on either data obtained in the literature or
on laboratory testing which has been carried out in accordance with
procedures prescribed in Appendix III. These combinations are exceptions
to the Compatibility Chart (Figure 1) and may not be stowed in adjacent
tanks.
    Acetone cyanohydrin (0) is not compatible with Groups 1-12, 16, 17
and 22.
    Acrolein (19) is not compatible with Group 1, Non-Oxidizing Mineral
Acids.
    Acrylic acid (4) is not compatible with Group 9, Aromatic Amines.
    Acrylonitrile (15) is not compatible with Group 5 (Caustics).
    Alkylbenzenesulfonic acid (0) is not compatible with Groups 1-3, 5-
9, 15, 16, 18, 19, 30, 34, 37, and strong oxidizers.
    Allyl alcohol (15) is not compatible with Group 12, Isocyanates.
    Alkyl (C7-C9) nitrates (34) is not compatible with Group 1, Non-
oxidizing Mineral Acids.
    Aluminum sulfate solution (43) is not compatible with Groups 5-11.
    Ammonium bisulfite solution (43) is not compatible with Groups 1, 3,
4, and 5.
    Benzenesulfonyl chloride (0) is not compatible with Groups 5-7, and
43.
    1,4-Butylene glycol (20) is not compatible with Caustic soda
solution, 50% or less (5).
    gamma-Butyrolactone (0) is not compatible with Groups 1-9.
    C9 Resinfeed (DSM) (32) is not compatible with Group 2, Sulfuric
acid.
    Carbon tetrachloride (36) is not compatible with
Tetraethylenepentamine or Triethylenetetramine, both Group 7, Aliphatic
amines.
    Catoxid feedstock (36) is not compatible with Group 1, 2, 3, 4, 5,
or 12.
    Caustic soda solution, 50% or less (5) is not compatible with 1,4-
Butylene glycol (20).
    1-(4-Chlorophenyl)-4,4-dimethyl pentan-3-one (18) is not compatible
with Group 5 (Caustics) or 10 (Amides).
    Crotonaldehyde (19) is not compatible with Group 1, Non-Oxidizing
Mineral Acids.
    Cyclohexanone, Cyclohexanol mixture (18) is not compatible with
Group 12, Isocyanates.
    2,4-Dichlorophenoxyacetic acid, Triisopropanolamine salt solution
(43) is not compatible with Group 3, Nitric Acid.
    2,4-Dichlorophenoxyacetic acid, Dimethylamine salt solution (0) is
not compatible with Groups 1-5, 11, 12, and 16.
    Diethylenetriamine (7) is not compatible with 1,2,3-
Trichloropropane, Group 36, Halogenated hydrocarbons.
    Dimethyl hydrogen phosphite (34) is not compatible with Groups 1 and
4.
    Dimethyl naphthalene sulfonic acid, sodium salt solution (34) is not
compatible with Group 12, Formaldehyde, and strong oxidizing agents.
    Dodecylbenzenesulfonic acid (0) is not compatible with oxidizing
agents and Groups 1, 2, 3, 5, 6, 7, 8, 9, 15, 16, 18, 19, 30, 34, and
37.
    Ethylenediamine (7) and Ethyleneamine EA 1302 (7) are not compatible
with either Ethylene dichloride (36) or 1,2,3-Trichloropropane (36).

[[Page 121]]

    Ethylene dichloride (36) is not compatible with Ethylenediamine (7)
or Ethyleneamine EA 1302 (7).
    Ethylidene norbornene (30) is not compatible with Groups 1-3 and 5-
8.
    2-Ethyl-3-propylacrolein (19) is not compatible with Group 1, Non-
Oxidizing Mineral Acids.
    Ethyl tert-butyl ether (41) is not compatible with Group 1, Non-
oxidizing mineral acids.
    Fatty acids, essentially linear, C6-C18, 2-ethylhexyl ester (4) is
not compatible with Group 3, Nitric acid.
    Ferric hydroxyethylethylenediamine triacetic acid, Sodium salt
solution (43) is not compatible with Group 3, Nitric acid.
    Fish oil (34) is not compatible with Sulfuric acid (2).
    Formaldehyde (over 50%) in Methyl alcohol (over 30%) (19) is not
compatible with Group 12, Isocyanates.
    Formic acid (4) is not compatible with Furfural alcohol (20).
    Furfuryl alcohol (20) is not compatible with Group 1, Non-Oxidizing
Mineral Acids and Formic acid (4).
    1,6-Hexanediol distillation overheads (4) is not compatible with
Group 3, Nitric acid, and Group 9, Aromatic amines.
    2-Hydroxyethyl acrylate (14) is not compatible with Group 5, 6, or
12.
    Isophorone (18) is not compatible with Group 8, Alkanolamines.
    Lactic acid (0) is not compatible with Caustic soda solution.
    Magnesium chloride solution (0) is not compatible with Groups 2, 3,
5, 6 and 12.
    Mesityl oxide (18) is not compatible with Group 8, Alkanolamines.
    Methacrylonitrile (15) is not compatible with Group 5 (Caustics).
    Methyl tert-butyl ether (41) is not compatible with Group 1, Non-
oxidizing Mineral Acids.
    Nitroethane, 1-Nitropropane (each 15% or more) mixture (42) is not
compatible with Group 7, Aliphatic amines, Group 8, Alkanol amines, and
Group 9, Aromatic amines.
    Nitropropane (20%), nitroethane (80%) mixture (42) is not compatible
with Group 7 (Aliphatic amines), Group 8 (Alkanol amines), and Group 9
(Aromatic amines).
    NIAX POLYOL APP 240C (0) is not compatible with Groups 2, 3, 5, 7,
or 12.
    o-Nitrophenol (0) is not compatible with Groups 2, 3, and 5-10.
    Octyl nitrates (all isomers), see Alkyl(C7-C9) nitrates.
    Oleum (0) is not compatible with Sulfuric acid (2) and 1,1,1-
Trichloroethane (36).
    Phthalate based polyester polyol (0) is not compatible with Groups
2, 3, 5, 7 and 12.
    Polyglycerine, Sodium salts solution (20) is not compatible with
Groups 1, 4, 11, 16, 17, 19, 21 and 22.
    Propylene, Propane, MAPP gas mixture (containing 12% or less MAPP
gas) (30) is not compatible with Group 1 (Non-oxidizing mineral acids),
Group 36 (Halogenated hydrocarbons), nitrogen dioxide, oxidizing
materials, or molten sulfur.
    Sodium acetate, Glycol, Water mixture (1% or less Sodium hydroxide)
(34) is not compatible with Group 12 (Isocyanates).
    Sodium chlorate solution (50% or less) (0) is not compatible with
Groups 1-3, 5, 7, 8, 10, 12, 13, 17 and 20.
    Sodium dichromate solution (70% or less) (0) is not compatible with
Groups 1-3, 5, 7, 8, 10, 12, 13, 17 and 20.
    Sodium dimethyl naphthalene sulfonate solution (34) is not
compatible with Group 12, Formaldehyde and strong oxidizing agents.
    Sodium hydrogen sulfide, Sodium carbonate solution (0) is not
compatible with Groups 6 (Ammonia) and 7 (Aliphatic amines).
    Sodium hydrosulfide (5) is not compatible with Groups 6 (Ammonia)
and 7 (Aliphatic amines).
    Sodium hydrosulfide, Ammonium sulfide solution (5) is not compatible
with Groups 6 (Ammonia) and 7 (Aliphatic amines).
    Sodium polyacrylate solution (43) is not compatible with Group 3,
Nitric Acid.
    Sodium silicate solution (43) is not compatible with Group 3, Nitric
Acid.
    Sodium sulfide, hydrosulfide solution (0) is not compatible with
Groups 6 (Ammonia) and 7 (Aliphatic amines).
    Sodium thiocyanate (56% or less) (0) is not compatible with Groups
1-4.
    Sulfonated polyacrylate solution (43) is not compatible with Group 5
(Caustics).
    Sulfuric acid (2) is not compatible with Fish oil (34), or Oleum
(0).
    Tall oil fatty acid (Resin acids less than 20%) (34) is not
compatible with Group 5, Caustics.
    Tallow fatty acid (34) is not compatible with Group 5, Caustics.
    Tetraethylenepentamine (7) is not compatible with Carbon
tetrachloride, Group 36, Halogenated hydrocarbons.
    1,2,3-Trichloropropane (36) is not compatible with
Diethylenetriamine, Ethylenediamine, Ethyleaneamine EA 1302, or
Triethylenetetramine, all Group 7, Aliphatic amines.
    1,1,1-Trichloroethane (36) is not compatible with Oleum (0).
    Trichloroethylene (36) is not compatible with Group 5, Caustics.
    Triethylenetetramine (7) is not compatible with Carbon
tetrachloride, or 1,2,3-Trichloropropane, both Group 36, Halogenated
hydrocarbons.
    Triethyl phosphite (34) is not compatible with Groups 1, and 4.
    Trimethyl phosphite (34) is not compatible with Groups 1 and 4.

[[Page 122]]

    1,3,5-Trioxane (41) is not compatible with Group 1 (non-oxidizing
mineral acids) and Group 4 (Organic acids).
    Vinyl neodecanoate (13) is not compatible with Group 5, Caustics.



          Sec. Appendix II to Part 150--Explanation of Figure 1

    Definition of a hazardous reaction-- As a first approximation, a
mixture of two cargoes is considered hazardous when, under specified
condition, the temperature rise of the mixture exceeds 25 [deg]C or a
gas is evolved. It is possible for the reaction of two cargoes to
produce a product that is significantly more flammable or toxic than the
original cargoes even though the reaction is non-hazardous from
temperature or pressure considerations, although no examples of such a
reaction are known at this time.
    Chart format-- There are different degrees of reactivity among the
various cargoes. Many of them are relatively non-reactive: For example,
aromatic hydrocarbons or paraffins. Others will form hazardous
combinations with many groups: For example, the inorganic acids.
    The cargo groups in the compatibility chart are separated into two
categories: 1 through 22 are ``Reactive Groups'' and 30 through 43 are
``Cargo Groups''. Left unassigned and available for future expansion are
groups 23 through 29 and those past 43. Reactive Groups contain products
which are chemically the most reactive; dangerous combinations may
result between members of different Reactive Groups and between members
of Reactive Groups and Cargo Groups. Products assigned to Cargo Groups,
however, are much less reactive; dangerous combinations involving these
can be formed only with members of certain Reactive Groups. Cargo Groups
do not react hazardously with one another.
    Using the Compatibility Chart-- The following procedure explains how
the compatibility chart should be used to find compatibility
information:
    (1) Determine the group numbers of the two cargoes by referring to
the alphabetical listing of cargoes and the corresponding groups (Table
I). Many cargoes are listed under their parent names; unless otherwise
indicated, isomers or mixtures of isomers of a particular cargo are
assigned to the same group. For example, to find the group number for
Isobutyl Alcohol, look under the parent name Butyl Alcohol. Similarly,
the group number for para-Xylene is found under the entry Xylene. If a
cargo cannot be found in this listing, contact the Coast Guard for a
group determination (see Sec. 150.140).
    (2) If both group numbers are between 30 and 43 inclusive, the
products are compatible and the chart need not be used.
    (3) If both group numbers do not fall between 30 and 43 inclusive,
locate one of the numbers on the left of the chart (Cargo Groups) and
the other across the top (Reactive Groups). (Note that if a group number
is between 30 and 43, it can only be found on the left side of the
chart.) The box formed by the intersection of the column and row
containing the two numbers will contain one of the following:
    (a) Blank--The two cargoes are compatible.
    (b) ``X''--The two cargoes are not compatible.

(Note that reactivity may vary among the group members. Refer to Table I
or Table II to find whether the products in question are referenced by a
footnote which indicates that exceptions exist and are listed in
Appendix I. Unless the combination is specifically mentioned in Appendix
I, it is compatible.)

                                Examples
------------------------------------------------------------------------
               Combination                Groups        Compatible
------------------------------------------------------------------------
Butyraldehyde/Acetic Acid...............    19/4  Yes.
Allyl Alcohol/Toluene Diisocyanate......   15/12  No.
Decene/Ethyl Benzene....................   30/32  Yes.
Ethanolamine/Acetone....................    8/18  Yes.
Ammonia/Dimethylformamide...............    6/10  No.
------------------------------------------------------------------------


[CGD 75-59, 45 FR 70263, Oct. 23, 1980, as amended by CGD 83-047, 50 FR
33046, Aug. 16, 1985]



   Sec. Appendix III to Part 150--Testing Procedures for Determining
                         Exceptions to the Chart

    experimental procedure for evaluating binary chemical reactivity

    General safety precautions--Chemical reactivity tests have, by their
nature, serious potential for injuring the experimenter or destroying
equipment. The experimenter should 1) have knowledge of the magnitude of
the reactivity to be expected, 2) use adequate facilities and protective
equipment to prevent injury from splatter of materials or release of
fumes, and 3) start on a small scale so that unexpected reactions can be
safely contained. All tests should be performed in a well-ventilated
laboratory hood provided with shields.
    Testing chemicals other than liquids--The procedure outlined below
was developed for chemicals which are liquids at ambient temperatures.
If one or both chemicals are normally shipped at elevated temperatures,
the same procedure may be followed except the chemicals are tested at
their respective shipping temperatures and the oil bath in Step 3 is
maintained at a level 25 [deg]C above the higher temperature. This
information is then indicated on the data sheet. If one of the

[[Page 123]]

chemicals is a gas at ambient temperatures, consult the Coast Guard for
additional instructions before proceeding with the compatibility test.

                                 Step 1

    Objective--To determine if the test chemicals react violently and
present a safety hazard in further tests.
    Procedure--Place 0.5ml of one (A) of the test chemicals in a
25x150mm test tube. Clamp the test tube to a stand behind a safety
shield (in a hood). Carefully add from a dropper 0.5ml of the other
substance (B). Shake to induce mixing. If no immediate reaction occurs,
retain the mixture for at least 10 minutes to check for a delayed
reaction.
    Results--If a violent reaction occurs, such as sputtering, boiling
of reactants or release of fumes, record the results on the Data Sheet
(appendix IV) and do not proceed to Step 2. If no reaction or a minor
reaction occurs, proceed to Step 2.

                                 Step 2

    Objective--To determine the heat of reaction of two chemicals on
mixing under specified conditions.
    Procedure--These separate mixes of the proposed binary combination
will be tested. These are 2 ml : 18 ml, 10 ml : 10 ml, and 18 ml : 2 ml,
respectively, to result in a final mixture of about 20 ml in each case.
    A reference-junctioned thermocouple is prepared by inserting two
lengths of 20 gauge or finer iron-constantan or chromelalumel duplex
thermocouple wire into glass capilary sheaths. The common wire of each
probe is joined, while the other wire of each is connected to a strip-
chart recorder. The thermocouple probe which produces a negative pen
deflection upon warming is the reference junction and is placed in a
test tube of water at ambient laboratory temperature. The other probe is
placed near the bottom of a Dewar flask of about 300ml capacity, such
that the thermocouple will be below the surface of the test mixture. The
Dewar flask is equipped with a magnetic stirrer having a stirring bar
coated with an inert material such as a fluorinated hydrocarbon.
    Start the temperature recorder and stirrer. Deliver the test
chemicals to the Dewar Flask simultaneously from separate graduated
syringes. If an exothermic reaction occurs, continue the test until the
maximum temperature is reached and begins to subside. If no apparent
reaction occurs, continue the test for at least 30 minutes to check for
a delayed reaction. Stop agitation and observe the mixture at five-
minute intervals to determine if the mixture is miscible, if gases are
evolved, or if other visible changes occur. In the interest of safety, a
mirror can be used for these observations. Repeat the above test for the
other mixture combinations.
    Results--Record the results in the appropriate places on the Data
Sheet. If no reaction occurs or if the temperature rise is less than 25
[deg]C, proceed to Step 3. If the observed temperature rise exceeds 25
[deg]C or gases are evolved, do not proceed to Step 3.

                                 Step 3

    Objective--To determine if exothermic reactions occur at
temperatures up to 50 [deg]C.
    Procedure--If a non-hazardous reaction occurred in Step 2, the ratio
of chemicals which resulted in the greatest temperature rise will be
tested. Fresh chemicals will be used with a total volume for this test
of about 10ml (a ratio of 1ml:9ml, 5ml:5ml, or 9ml:1ml). If no reaction
was observed in Step 2, use a ratio of 5ml:5ml. Using the thermocouple
prepared for Step 2, insert the reference probe into a 25x150mm test
tube containing 10ml of water. Place the other probe into an empty test
tube. Start the temperature recorder and add the two chemicals of the
combination, one at a time, to the empty test tube. Lower the two test
tubes into an oil bath maintained at 50 2 [deg]C.
Hold the samples in the oil bath until the maximum temperature
differential is recorded, and in all cases at least 15 minutes. Observe
the test mixture to determine if gases are evolved or if other visible
changes occur. Follow prescribed safety precautions.
    Results--Record the maximum differential temperature measured, the
time required to reach this temperature, and any other observations in
the proper space on the Data Sheet.
    Send a copy of the Data Sheet for each binary chemical mixture
tested to: Commandant (CG-ENG-5), Attn: Hazardous Materials Division,
U.S. Coast Guard Stop 7509, 2703 Martin Luther King Jr. Avenue SE.,
Washington, DC 20593-7509.

[CGD 75-59, 45 FR 70263, Oct. 23, 1980, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 83-047, 50 FR 33046, Aug. 16, 1985; CGD 88-070,
53 FR 34535, Sept. 7, 19885; CGD 96-041, 61 FR 50731, Sept. 27, 1996;
USCG-2012-0832, 77 FR 59783, Oct. 1, 2012; USCG-2013-0671, 78 FR 60155,
Sept. 30, 2013; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]

[[Page 124]]



                Sec. Appendix IV to Part 150--Data Sheet
[GRAPHIC] [TIFF OMITTED] TC02FE91.080


[[Page 125]]


[GRAPHIC] [TIFF OMITTED] TC02FE91.081



PART 151_BARGES CARRYING BULK LIQUID HAZARDOUS MATERIAL CARGOES--Table
of Contents



                         Subpart 151.01_General

Sec.
151.01-1 Applicability.
151.01-2 Incorporation by reference.
151.01-3 [Reserved]
151.01-5 [Reserved]
151.01-10 Application of vessel inspection regulations.
151.01-15 Dangerous cargoes not specifically named.
151.01-20 Use of minimum requirements.
151.01-25 Existing barges.
151.01-30 Effective date.
151.01-35 Right of appeal.

                       Subpart 151.02_Equivalents

151.02-1 Conditions under which equivalents may be used.
151.02-5 Design of unmanned barges.

                       Subpart 151.03_Definitions

151.03-1 Definitions of terms.
151.03-3 Angle of downflooding.
151.03-5 Approved.
151.03-7 Barge.
151.03-9 Cargo.
151.03-11 Coastwise.
151.03-13 Cofferdam.
151.03-15 Commandant.
151.03-17 Compatible.
151.03-19 Environment.
151.03-21 Filling density.
151.03-23 Flame arrestor.
151.03-25 Flame screen.

[[Page 126]]

151.03-27 Gas free.
151.03-29 Great Lakes.
151.03-30 Hazardous material.
151.03-31 Headquarters.
151.03-33 Lakes, bays, and sounds.
151.03-35 Limiting draft.
151.03-36 Liquid.
151.03-37 Maximum allowable working pressure.
151.03-38 Nondestructive testing.
151.03-39 Ocean.
151.03-41 Officer in Charge, Marine Inspection (OCMI).
151.03-43 Pressure.
151.03-45 Rivers.
151.03-47 Service.
151.03-49 Sounding tube.
151.03-51 Tank barge.
151.03-53 Tankerman.
151.03-55 [Reserved]

               Subpart 151.04_Inspection and Certification

151.04-1 Certificate of inspection.
151.04-2 Inspection required.
151.04-3 Initial inspection.
151.04-5 Inspection for certification.
151.04-7 Nondestructive testing.

   Subpart 151.05_Summary of Minimum Requirements for Specific Cargoes

151.05-1 Explanation of column headings in Table 151.05.
151.05-2 Compliance with requirements for tank barges carrying benzene
          and benzene containing cargoes, or butyl acrylate cargoes.

Table 151.05 to Subpart 151.05 of Part 151--Summary of Minimum
          Requirements

           Subpart 151.10_Barge Hull Construction Requirements

151.10-1 Barge hull classifications.
151.10-5 Subdivision and stability.
151.10-15 Certificate endorsement.
151.10-20 Hull construction.

   Subpart 151.12_Equipment and Operating Requirements for Control of
                  Pollution From Category D NLS Cargoes

151.12-5 Equipment for Category D NLS.
151.12-10 Operation of oceangoing non-self-propelled ships carrying
          Category D NLS.

                    Subpart 151.13_Cargo Segregation

151.13-1 General.
151.13-5 Cargo segregation--tanks.

                          Subpart 151.15_Tanks

151.15-1 Tank types.
151.15-3 Construction.
151.15-5 Venting.
151.15-6 Venting piping.
151.15-10 Cargo gauging devices.

                      Subpart 151.20_Cargo Transfer

151.20-1 Piping--general.
151.20-5 Cargo system valving requirements.
151.20-10 Cargo system instrumentation.
151.20-15 Cargo hose if carried on the barge.
151.20-20 Cargo transfer methods.

                  Subpart 151.25_Environmental Control

151.25-1 Cargo tank.
151.25-2 Cargo handling space.

               Subpart 151.30_Portable Fire Extinguishers

151.30-1 Type.

      Subpart 151.40_Temperature or Pressure Control Installations

151.40-1 Definitions.
151.40-2 Materials.
151.40-5 Construction.
151.40-10 Operational requirements.
151.40-11 Refrigeration systems.

                        Subpart 151.45_Operations

151.45-1 General.
151.45-2 Special operating requirements.
151.45-3 Manning.
151.45-4 Cargo-handling.
151.45-5 Open hopper barges.
151.45-6 Maximum amount of cargo.
151.45-7 Shipping papers.
151.45-8 Illness, alcohol, drugs.
151.45-9 Signals.

                   Subpart 151.50_Special Requirements

151.50-1 General.
151.50-5 Cargoes having toxic properties.
151.50-6 Motor fuel antiknock compounds.
151.50-10 Alkylene oxides.
151.50-12 Ethylene oxide.
151.50-13 Propylene oxide.
151.50-20 Inorganic acids.
151.50-21 Sulfuric acid.
151.50-22 Hydrochloric acid.
151.50-23 Phosphoric acid.
151.50-30 Compressed gases.
151.50-31 Chlorine.
151.50-32 Ammonia, anhydrous.
151.50-34 Vinyl chloride (vinyl chloride monomer).
151.50-36 Argon or nitrogen.
151.50-40 Additional requirements for carbon disulfide (carbon
          bisulfide) and ethyl ether.
151.50-41 Carbon disulfide (carbon bisulfide).
151.50-42 Ethyl ether.
151.50-50 Elemental phosphorus in water.
151.50-55 Sulfur (molten).

[[Page 127]]

151.50-60 Benzene.
151.50-70 Cargoes requiring inhibition or stabilization.
151.50-73 Chemical protective clothing.
151.50-74 Ethylidene norbornene.
151.50-75 Ferric chloride solution.
151.50-76 Hydrochloric acid, spent (NTE 15%).
151.50-77 Fluorosilicic acid (30% or less) (hydrofluorosilicic acid).
151.50-79 Methyl acetylene-propadiene mixture.
151.50-80 Nitric acid (70% or less).
151.50-81 Special operating requirements for heat sensitive cargoes.
151.50-84 Sulfur dioxide.
151.50-86 Alkyl (C7-C9) nitrates.

    Subpart 151.55_Special Requirements for Materials of Construction

151.55-1 General.

           Subpart 151.56_Prohibited Materials of Construction

151.56-1 Prohibited materials.

            Subpart 151.58_Required Materials of Construction

151.58-1 Required materials.

    Authority: 33 U.S.C. 1903; 46 U.S.C. 3703; Department of Homeland
Security Delegation No. 0170.1.

    Source: CGFR 70-10, 35 FR 3714, Feb. 25, 1970, unless otherwise
noted.

    Editorial Note: Nomenclature changes to part 151 appear by USCG-
2009-0702, 74 FR 49236, Sept. 25, 2009, and USCG-2012-0832, 77 FR 59784,
Oct. 1, 2012.



                         Subpart 151.01_General



Sec. 151.01-1  Applicability.

    This part applies to the following:
    (a) Oceangoing, as defined in 33 CFR 151.05(j), non-self-propelled
United States ships and non-self-propelled foreign ships operating in
United States waters that carry a bulk cargo that is--
    (1) Listed in Table 151.05;
    (2) Not being carried in a portable tank regulated under subpart
98.30 or 98.33 of this chapter; and
    (3) Not an NLS or is an NLS cargo that is a Category D listed in
Sec. 151.12-5 of this part.
    (b) All non-self-propelled United States ships that are not
oceangoing that carry a bulk cargo that is--
    (1) Listed in Table 151.05, and
    (2) Not being carried in a portable tank regulated under subpart
98.30 or 98.33 of this chapter.

[CGD 81-101, 52 FR 7776, Mar. 12, 1987, as amended by CGD 84-043, 55 FR
37413, Sept. 11, 1990]



Sec. 151.01-2  Incorporation by reference.

    (a) Certain standards and specifications are incorporated by
reference into this part with the approval of the Director of the
Federal Register in accordance with 5 U.S.C. 552(a). To enforce any
edition other than the ones listed in paragraph (b) of this section,
notice of change must be published in the Federal Register and the
material made available to the public. All approved material is on file
at the National Archives and Records Administration (NARA), and is
available from the sources indicated in paragraph (b) of this section.
For information on the availability of this material at NARA, call 202-
741-6030, or go to: http://www.archives.gov/federal--register/code--of--
federal--regulations/ibr--locations.html.
    (b) The standards and specifications approved for incorporation by
reference in this part and the sections affected, are:

           American Society for Nondestructive Testing (ASNT)

4153 Arlingate Road, Caller 28518, Columbus, OH 43228-0518

ASNT ``Recommended Practice No. SNT-TC-1A (1988), Personnel
Qualification and Certification in Nondestructive Testing''
                                                          151.04-7(c)(2)

      American Society of Mechanical Engineers (ASME) International

Three Park Avenue, New York, NY 10016-5990

ASME Boiler and Pressure Vessel Code Section V, Nondestructive
Examination (1986)........................................151.04-7(a)(1)

            American Society for Testing and Materials (ASTM)

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

ASTM D 4986-98, Standard Test Method for Horizontal Burning
Characteristics of Cellular Polymeric Materials.................151.15-3
ASTM E 84-98, Standard Test Method

[[Page 128]]

for Surface Burning Characteristics of Building Materials--151.15-3

[CGD 85-061, 54 FR 50965, Dec. 11, 1989, as amended by USCG-1999-6216,
64 FR 53227, Oct. 1, 1999; USCG-1999-5151, 64 FR 67183, Dec. 1, 1999; 69
FR 18803, Apr. 9, 2004]



Sec. 151.01-3  [Reserved]



Sec. 151.01-5  [Reserved]



Sec. 151.01-10  Application of vessel inspection regulations.

    (a) The regulations in this part are requirements which may be in
addition to, supplement, or modify requirements in other subchapters in
this chapter. When a specific requirement in another part or section in
another subchapter in this chapter is in conflict with or contrary to
requirement or intent expressed in this part, the regulations in this
part shall take precedence.
    (b) Every unmanned tank barge which carries or is intended to carry
in bulk any liquid or liquefied gas listed in Table 151.05 and has
flammability or combustibility characteristics as indicated by a fire
protection requirement in Table 151.05 shall be inspected and
certificated under the provisions in subchapter D (Tank Vessels) of this
chapter and the regulations in this part.
    (c) Every unmanned tank barge prior to the carriage in bulk of any
liquid or liquefied gas listed in Table 151.05 which does not have the
flammability or combustibility characteristics as indicated by the fire
protection requirement in Table 151.05 shall be inspected and
certificated under the applicable provisions of subchapter D or
subchapter I of this chapter, at the option of the barge owner, in
addition to the regulations in this part. However, unless the barge
owner notifies the Officer in Charge, Marine Inspection of his option to
have the barge inspected and certificated under subchapter I at the time
he submits the application for inspection (Form CG-3752), the unmanned
tank barge shall be inspected and certificated under the provisions of
subchapter D of this chapter and the regulations in this part.
    (c-1) Each unmanned tank barge constructed on or after September 6,
1977, that carries in bulk a cargo listed in Table 151.05 and that is
certificated under subchapter I of this chapter must meet the loading
information requirements in Sec. 31.10-32 of this chapter.
    (d) The provisions of subchapter D of this chapter shall apply to
all unmanned tank barges which carry in bulk any of the liquids or
liquefied gases listed in Table 30.25-1 of this chapter. The provisions
of this part shall not apply to such barges unless it is also desired to
carry one or more of the liquids or liquefied gases listed in Table
151.05.
    (e) Manned barges which carry or intend to carry in bulk the cargoes
specified in Table 151.05 will be considered individually by the
Commandant and may be required to meet the requirements of this
subchapter and of subchapter D (Tank Vessels) or I (Cargo and
Miscellaneous Vessels) of this chapter as applicable.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970]

    Editorial Note: For Federal Register citations affecting Sec.
151.01-10, see the List of CFR Sections Affected, which appears in the
Finding Aids section of the printed volume and at www.fdsys.gov.



Sec. 151.01-15  Dangerous cargoes not specifically named.

    (a) Any liquid or liquefied gas, which meets the definitions
referred to in Sec. 151.01-1 and is not named in Table 151.05 or Table
30.25-1 of this chapter shall not be transported in bulk in a manned or
unmanned tank barge without the prior specific approval of the
Commandant.
    (b) Mixtures or blends of two or more cargoes, one or more of which
appears in Table 151.05, will be treated as though they were new
products and specific approval of the Commandant must be obtained prior
to undertaking their transportation.

[CGFR-70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 81-101, 52 FR
7777, Mar. 12, 1987; CGD 81-101, 53 FR 28974, Aug. 1, 1988 and 54 FR
12629, Mar. 28, 1989; CGD 88-100, 54 FR 40029, Sept. 29, 1989]



Sec. 151.01-20  Use of minimum requirements.

    (a) The minimum requirements governing transportation of any liquid
or liquefied gas listed in Table 151.05 are

[[Page 129]]

set forth in this part when such substances are carried in bulk in
unmanned tank barges.
    (b) Before any liquid or liquefied gas listed in Table 151.05 may be
carried in an unmanned tank barge, the certificate of inspection issued
to such barge shall be appropriately endorsed to show approval to
transport such cargo.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40029, Sept. 29, 1989]



Sec. 151.01-25  Existing barges.

    (a) Except as provided in paragraph (c) of this section, barges
certified for, or used within the previous 2 years prior to the
effective date of this regulation, or barges equivalent to such barges,
for the transportation of any cargo regulated by this subchapter which
do not meet the specific requirements herein, may be continued in
service subject to the following conditions:
    (1) Venting, gauging, and all operating requirements shall be met
within a 1-year period subsequent to the effective date.
    (2) All other requirements shall be met within a 2-year period
subsequent to the effective date.
    (b) If an existing barge, which has been designed to carry or has
regularly been carrying one or more of the cargoes regulated by this
subchapter, is found to be so arranged, or outfitted that conversion to
bring it into compliance with any or all of the requirements of this
subchapter is impractical or impossible, the Commandant, upon
application, may review the plans of the barge to determine if it is
suitable and safe for the cargoes to be transported.
    (c) Except for operating and vinyl chloride requirements, barges
constructed and certificated for the transportation of any cargo for
which specific regulations existed, in parts 36, 38, 39, 40, and 98 of
this chapter at the time of their construction or conversion, may
continue and will be certificated to operate without the requirement
that they comply with the provisions of subchapter O of this chapter.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 74-167k, 40 FR
17026, Apr. 16, 1975]



Sec. 151.01-30  Effective date.

    (a) The regulations in this subchapter are effective on and after
June 1, 1970. However, amendments, revisions, or additions shall become
effective ninety (90) days after the date of publication in the Federal
Register unless the Commandant shall fix a different time.
    (b) The regulations in this subchapter are not retroactive in effect
unless specifically made so at the time the regulations are issued.
Changes in specification requirements of articles of equipment, or
materials used in construction of tank barges, shall not apply to such
items which have been passed as satisfactory until replacement shall
become necessary, unless a specific finding is made that such equipment
or materials used is unsafe or hazardous and has to be removed from tank
barges.



Sec. 151.01-35  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



                       Subpart 151.02_Equivalents



Sec. 151.02-1  Conditions under which equivalents may be used.

    (a) Where in this part it is provided that a particular fitting,
material, appliance, apparatus, or equipment, or type thereof, shall be
fitted or carried in a vessel, or that any particular provision shall be
made or arrangement including cargo segregation shall be adopted, the
Commandant may accept in substitution therefor any other fitting,
material, apparatus or equipment, or type thereof, or any other
provision or arrangement. However, the Commandant shall be satisfied by
suitable evidence that the fitting, material, appliance, apparatus, or
equipment, or the type thereof, or the provision or arrangement shall be
at least as effective as that specified in this part.
    (b) In any case where it is shown to the satisfaction of the
Commandant that the use of any particular equipment, apparatus, or
arrangement not

[[Page 130]]

specifically required by law is unreasonable or impracticable, the
Commandant may permit the use of alternate equipment apparatus, or
arrangement to such an extent and upon such conditions as will insure,
to his satisfaction, a degree of safety consistent with the minimum
standards set forth in this part.



Sec. 151.02-5  Design of unmanned barges.

    (a) In order not to inhibit design and application, the Commandant
may approve vessels of novel design, both new and for conversion, after
it is shown to his satisfaction that such a vessel is at least as safe
as any vessel which meets the standards required by this part.
    (b) [Reserved]



                       Subpart 151.03_Definitions



Sec. 151.03-1  Definitions of terms.

    Certain terms used in the regulations in this subchapter are defined
in this subpart.



Sec. 151.03-3  Angle of downflooding.

    The angle of heel of the vessel at which any opening in the hull not
provided with a water tight closure would be immersed.



Sec. 151.03-5  Approved.

    This term means approved by the Commandant unless otherwise stated.



Sec. 151.03-7  Barge.

    This term means any non-self-propelled vessel designed to carry
cargo.



Sec. 151.03-9  Cargo.

    This term means any liquid, gas or solid having one or more of the
dangerous properties defined in this subchapter.



Sec. 151.03-11  Coastwise.

    This designation refers to all vessels normally navigating the
waters of any ocean or the Gulf of Mexico 20 nautical miles or less
offshore.



Sec. 151.03-13  Cofferdam.

    This term means a void or empty space separating two or more
compartments for the purpose of isolation or to prevent the contents of
one compartment from entering another in the event of the failure of the
walls of one to retain their tightness.



Sec. 151.03-15  Commandant.

    This term means Commandant of the U.S. Coast Guard.



Sec. 151.03-17  Compatible.

    Compatible means that a cargo will not react in an unsafe manner
with other cargo or materials used in construction of the barge. The
prime considerations are the chemical, physical, or thermal properties
of the reaction including heat, pressure, toxicity, stability, and
explosive nature of the reaction and its end products.



Sec. 151.03-19  Environment.

    This term refers to the atmosphere within a cargo tank and the
spaces adjacent to the tank or spaces in which cargo is handled.



Sec. 151.03-21  Filling density.

    The ratio, expressed as a percentage, of the weight of cargo that
may be loaded into a tank compared to the weight of water that the tank
will hold at 60 [deg]F. The weight of a gallon of water at 60 [deg]F in
air shall be 8.32828 pounds.



Sec. 151.03-23  Flame arrestor.

    Any device or assembly of cellular, tubular, pressure or other type
used for preventing the passage of flames into enclosed spaces.



Sec. 151.03-25  Flame screen.

    A fitted single screen of corrosion-resistant wire of at least 30 by
30 mesh or two fitted screens, both of corrosion-resistant wire, of at
least 20 by 20 mesh spaced not less than one-half inch or more than 1\1/
2\ inches apart.



Sec. 151.03-27  Gas free.

    Free from dangerous concentrations of flammable or toxic gases.



Sec. 151.03-29  Great Lakes.

    A designation for all vessels in Great Lakes service.

[[Page 131]]



Sec. 151.03-30  Hazardous material.

    In this part hazardous material means a liquid material or substance
that is--
    (a) Flammable or combustible;
    (b) Designated a hazardous substance under section 311(b) of the
Federal Water Pollution Control Act (33 U.S.C. 1321); or
    (c) Designated a hazardous material under 49 U.S.C. 5103.

    Note: The Environmental Protection Agency designates hazardous
substances in 40 CFR Table 116.4A. The Coast Guard designates hazardous
materials that are transported as bulk liquids by water in Sec. 153.40.

[CGD 81-101, 52 FR 7777, Mar. 12, 1987, as amended by CGD 95-028, 62 FR
51209, Sept. 30, 1997]



Sec. 151.03-31  Headquarters.

    Commandant (CG-5P), Attn: Assistant Commandant for Prevention, U.S.
Coast Guard Stop 7501, 2703 Martin Luther King Jr. Avenue SE.,
Washington, DC 20593-7501

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-070, 53 FR
34535, Sept. 7, 1988; USCG-2013-0671, 78 FR 60155, Sept. 30, 2013]



Sec. 151.03-33  Lakes, bays, and sounds.

    A designation for all vessels navigating the waters of any of the
lakes, bays, or sounds other than the waters of the Great Lakes.



Sec. 151.03-35  Limiting draft.

    Maximum allowable draft to which a barge may be loaded. Limiting
draft is a function of hull type and cargo specific gravity. A barge may
be assigned different limiting drafts for different hull types or within
one hull type for different specific gravities.



Sec. 151.03-36  Liquid.

    In this part liquid includes liquefied and compressed gases.

[CGD 81-101, 52 FR 7777, Mar. 12, 1987]



Sec. 151.03-37  Maximum allowable working pressure.

    The maximum allowable working pressure shall be as defined in
section VIII of the ASME Boiler and Pressure Vessel Code.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 85-061, 54 FR
50965, Dec. 11, 1989]



Sec. 151.03-38  Nondestructive testing.

    Nondestructive testing includes ultrasonic examination, liquid
penetrant examination, magnetic particle examination, radiographic
examination, eddy current, and acoustic emission.

[CGD 85-061, 54 FR 50965, Dec. 11, 1989]



Sec. 151.03-39  Ocean.

    A designation for all vessels normally navigating the waters of any
ocean or the Gulf of Mexico more than 20 nautical miles offshore.



Sec. 151.03-41  Officer in Charge, Marine Inspection (OCMI).

    This term means any person from the civilian or military branch of
the Coast Guard designated as such by the Commandant and who, under the
superintendence and direction of the Coast Guard District Commander, is
in charge of an inspection zone for the performance of duties with
respect to the enforcement and administration of Subtitle II of Title
46, U.S. Code, Title 46 and Title 33 U.S. Code, and regulations issued
under these statutes.

[CGD 95-028, 62 FR 51209, Sept. 30, 1997]



Sec. 151.03-43  Pressure.

    Terminology used in this part are: pounds per square inch gauge
(p.s.i.g.) or pounds per square inch absolute (p.s.i.a.). 14.7 p.s.i.a.
is equal to 0 p.s.i.g. P.s.i.g. is normally used in reference to design
or operating requirements.



Sec. 151.03-45  Rivers.

    A designation for all vessels whose navigation is restricted to
rivers and/or canals, exclusively.



Sec. 151.03-47  Service.

    The waters upon which a vessel may be operated as endorsed upon the
certificate of inspection.

[[Page 132]]



Sec. 151.03-49  Sounding tube.

    This is an unperforated tube fitted to an ullage hole, secured so as
to be vapor tight to the underside of the tank top open at the bottom,
and extending to within 18 inches or less of the bottom of the tank.



Sec. 151.03-51  Tank barge.

    A non-self-propelled vessel especially constructed or converted to
carry bulk liquid cargo in tanks.



Sec. 151.03-53  Tankerman.

    The following ratings are established in part 13 of this chapter.
The terms for the ratings identify persons holding valid merchant
mariner credentials or merchant mariners' documents for service in the
ratings issued under that part:
    (a) Tankerman-PIC.
    (b) Tankerman-PIC (Barge).
    (c) Restricted Tankerman-PIC.
    (d) Restricted Tankerman-PIC (Barge).
    (e) Tankerman-Assistant.
    (f) Tankerman-Engineer.

[CGD 79-116, 60 FR 17157, Apr. 4, 1995, as amended by USCG-2006-24371,
74 FR 11266, Mar. 16, 2009]



Sec. Sec. 151.03-55  [Reserved]



               Subpart 151.04_Inspection and Certification



Sec. 151.04-1  Certificate of inspection.

    (a) A certificate of inspection is required for every unmanned tank
barge subject to the requirements in this subchapter. A certificate of
inspection shall be issued to the barge or to its owners by the Officer
in Charge, Marine Inspection, if the barge is found to comply with
applicable inspection laws and the regulations in this chapter.
    (b) The certificate of inspection shall be endorsed with respect to
the waters over which the barge may be operated.
    (c) The certificate shall be endorsed describing the cargoes by name
as given in Table 151.05 or as specifically approved by the Commandant.
No other dangerous cargo as defined in Subpart 151.01-1 shall be
carried. Certificates shall specify maximum cargo weight (short tons),
maximum density (pounds per gallon) and any operating limitations and a
limiting draft.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40029, Sept. 29, 1989]



Sec. 151.04-2  Inspection required.

    (a) Every unmanned tank barge subject to the regulations in this
subchapter shall be inspected every five years. More frequent
inspections may be required, if necessary, by the Officer in Charge,
Marine Inspection, to see that the hull, equipment and appliances of the
vessel comply with the marine inspection laws, and the regulations of
this subchapter and other subchapters where applicable.
    (b) [Reserved]

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by USCG-2007-29018,
72 FR 53967, Sept. 21, 2007]



Sec. 151.04-3  Initial inspection.

    (a) The initial inspection which may consist of a series of
inspections during the construction of an unmanned barge shall include a
complete inspection of the structure, auxiliary machinery, and
equipment. The inspection shall be such as to insure that the
arrangement, materials, and scantlings of the hull structure, tanks and
pressure vessels and their appurtenances comply with applicable
regulations of this chapter and with the requirements of this part.
    (b) [Reserved]



Sec. 151.04-5  Inspection for certification.

    (a) An inspection for certification is a prerequisite of the
reissuance of a Certificate of Inspection as provided for in applicable
regulations of this chapter.
    (b) Unless otherwise specified in table 151.05, cargo tanks are
internally examined as follows:
    (1) Where the cargo tank is of the gravity type and the structural
framing is on the internal tank surface, the tank shall be inspected
internally at the time of inspection for certification.
    (2) Where the cargo tank is of the gravity type and the structural
framing is on the external tank surface accessible for examination from
voids, cofferdams, double bottoms, and other

[[Page 133]]

similar spaces, tanks shall be inspected internally at 4-year intervals.
    (3) If the tank is a pressure-vessel type cargo tank, an internal
inspection of the tank is conducted within--
    (i) Ten years after the last internal inspection on an unmanned
barge carrying cargo at temperatures of -67 [deg]F (-55 [deg]C) or
warmer; or
    (ii) Eight years after the last internal inspection if the tank is a
pressure type cargo tank carrying cargo at temperatures colder than -67
[deg]F (-55 [deg]C).
    (4) Internal inspection may be required at more frequent intervals
as deemed necessary by the Officer in Charge, Marine Inspection.
    (c) An external examination of unlagged tanks and the visible parts
of lagged tanks is made at each biennial inspection. If the vessel has
single skin construction, the underwater portion of the tank need not be
examined unless deemed necessary by the Officer in Charge, Marine
Inspection. If an external examination of the tank is not possible
because of insulation, the owner shall ensure that--
    (1) The amount of insulation deemed necessary by the marine
inspector is removed during each cargo tank internal inspection to allow
spot external examination of the tanks and insulation; or
    (2) The thickness of the tanks is gauged by a nondestructive means
accepted by the marine inspector without the removal of insulation.
    (d) If required by the Officer in Charge, Marine Inspection the
owner shall conduct nondestructive testing of each tank designated by
the Officer in Charge, Marine Inspection in accordance with Sec.
151.04-7.
    (e) If the Officer in Charge, Marine Inspection considers a
hydrostatic test necessary to determine the condition of the tanks, the
owner shall perform the test at a pressure of 1\1/2\ times the tank's--
    (1) Maximum allowable pressure, as determined by the safety relief
valve setting; or
    (2) Design pressure, when cargo tanks operate at maximum allowable
pressures reduced below the design pressure in order to satisfy special
mechanical stress relief requirements.

    Note: See the ASME Code, Section VIII, Appendix 3 for information on
design pressure.

    (f) Quick closing valves shall be tested by operating the emergency
shutoff system from each operating point at the time of each vessel's
inspection for certification.
    (g) Excess flow valves shall be inspected at the time of inspection
for certification. The Officer in Charge, Marine Inspection, shall
satisfy himself that the valve is in working condition by visual
inspection, and if this is impossible, by one of the following means:
    (1) Removing the valve and bench testing ashore; the valve shall
close at or below its rated closing flow.
    (2) By any other means acceptable to the Officer in Charge, Marine
Inspection, which will demonstrate that the valve is operable.
    (h) Pressure vacuum relief valves shall be examined to determine
that the operating mechanism is free and capable of activation.
    (i) Safety relief valves shall be tested by bench testing or other
suitable means. The valves shall relieve and reseat within the design
tolerances of the set pressure, or it shall be removed and reset prior
to being returned to service. This test shall be conducted at the time
of the inspection for certification.
    (j) Cargo hose stored on board the vessel which is used in
transferring cargoes listed in Table 151.05 shall be inspected every 2
years. This inspection shall consist of a visual examination and a
hydrostatic test of 1\1/2\ times the maximum pressure to which the hose
will be subjected in service. The date of the most recent inspection and
the test pressure shall be stenciled or otherwise marked on the hose.
    (k) Cargo piping shall be inspected and tested at the same time as
the cargo tanks.
    (l) If the tank is a pressure vessel type cargo tank with an
internal inspection interval of 10 years, and is 30 years old or older,
determined from the date it was built, the owner shall conduct
nondestructive testing of each

[[Page 134]]

tank in accordance with Sec. 151.04-7, during each internal inspection.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40029, Sept. 29, 1989; CGD 85-061, 54 FR 50965, Dec. 11, 1989; USCG-
2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 151.04-7  Nondestructive testing.

    (a) Before nondestructive testing may be conducted to meet Sec.
151.04-5 (d) and (l), the owner shall submit a proposal to the Officer
in Charge, Marine Inspection that includes--
    (1) The test methods and procedures to be used all of which must
meet section V of the ASME Boiler and Pressure Vessel Code (1986);
    (2) Each location on the tank to be tested; and
    (3) The test method and procedure to be conducted at each location
on the tank.
    (b) If the Officer in Charge, Marine Inspection rejects the
proposal, the Officer in Charge, Marine Inspection informs the owner of
the reasons why the proposal is rejected.
    (c) If the Officer in Charge, Marine Inspection accepts the
proposal, then the owner shall ensure that--
    (1) The proposal is followed; and
    (2) Nondestructive testing is performed by personnel meeting ASNT
``Recommended Practice No. SNT-TC-1A (1988), Personnel Qualification and
Certification in Nondestructive Testing.''
    (d) Within 30 days after completing the nondestructive test, the
owner shall submit a written report of the results to the Officer in
Charge, Marine Inspection.

[CGD 85-061, 54 FR 50966, Dec. 11, 1989]



   Subpart 151.05_Summary of Minimum Requirements for Specific Cargoes



Sec. 151.05-1  Explanation of column headings in Table 151.05.

    (a) Cargo identification/name. This column identifies cargoes by
name. Words in italics are not part of the cargo name but may be used in
addition to the cargo name. When one entry references another entry by
use of the word ``see'' and both names are in roman type, either name
may be used as the cargo name (e.g., ``Diethyl either see Ethyl
ether''). However, the referenced entry is preferred.
    (b) Cargo identification/pressure. This column identifies cargo in
terms of pressure within the tank. Terms used are:
    (1) Pressurized. Cargo carried at a pressure in excess of 10 pounds
per square inch gauge as measured at the top of the tank (i.e.,
exclusive of static head).
    (2) Atmospheric pressure. Cargo carried at not more than 10 pounds
per square inch gauge, exclusive of static head.
    (c) Cargo identification/temperature. This column identifies the
cargo by the temperature of the cargo during transit.
    (1) Ambient temperature. Cargo which is carried at naturally
occurring temperatures.
    (2) Low temperature. Cargo carried below ambient temperatures when
the product temperature is below 0 [deg]F.
    (3) Elevated temperature. Cargo carried above ambient temperatures.
    (d) Hull type. This column refers to the flotation features of the
barge. Terms used are explained and defined in Subpart 151.10 of this
part.
    (e) Cargo segregation/tanks. This column refers to the separation of
the cargo from its surroundings. Terms are explained in Sec. 151.13-5
and in footnotes to Table 151.05 of this part.
    (f) Tanks/type. This column refers to the design requirements for
cargo tanks and their placement within the hull of the vessel. Terms are
explained in Sec. 151.15-1.
    (g) Tanks/venting. This column refers to arrangements for preventing
excess pressure or vacuum within the cargo tank. Terms used are
explained and defined in Sec. 151.15-5.
    (h) Tanks/gauging devices. This column refers to arrangements
provided for determining the amount of cargo present in cargo tanks.
Terms used are explained and defined in Sec. 151.15-10.
    (i) Cargo transfer/piping. This column refers to the classification
of piping in accordance with Subchapter F of this chapter as discussed
in Sec. 151.20-1.
    (j) Cargo transfer/control. This column refers to the valving
requirements for the cargo piping system. These requirements are defined
in Sec. 151.20-5.

[[Page 135]]

    (k) Environmental control/cargo tanks. This column refers to control
of the composition of the environment within cargo tanks. Definitions
and detailed requirements are given in Sec. 151.25-1.
    (l) Environmental control/cargo handling space. This column refers
to control of the environment in the cargo handling spaces. Definitions
and detailed requirements are found in Sec. 151.25-2.
    (m) Fire protection. This column specifies whether portable fire
extinguishers are required on barges carrying the cargo named.
Requirements for cargoes requiring extinguishers are given in Subpart
151.30 of this part.
    (n) Special requirements. This column refers to requirements in
subparts 151.40, 151.50, 151.55, 151.56, and 151.58 of this part which
apply to specific cargoes. The section numbers listed omit the preceding
part designation, ``151''.
    (o) Electrical hazard class--group. This column lists the electrical
hazard class and group used for the cargo when determining requirements
for electrical equipment under subchapter J (Electrical engineering) of
this chapter.
    (p) Temperature control installations. This column refers to systems
which are used to control the temperature of the cargo. Definitions and
requirements which are applicable if such systems are used are given in
Subpart 151.40 of this part.
    (q) Tank inspection period. This column refers to the maximum period
in years between internal cargo tank inspections. Applicable
requirements are given in Sec. 151.04-5.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970; 35 FR 6431, Apr. 22, 1970, as
amended by CGD 74-275, 40 FR 21958, May 20, 1975; CGD 88-100, 54 FR
40029, Sept. 29, 19895; CGD 96-041, 61 FR 50731, Sept. 27, 1996; USCG
2000-7079, 65 FR 67183, Nov. 8, 2000]



Sec. 151.05-2  Compliance with requirements for tank barges carrying
benzene and benzene containing cargoes, or butyl acrylate cargoes.

    A tank barge certificated to carry benzene and benzene containing
cargoes or butyl acrylate cargoes must comply with the gauging
requirement of Table 151.05 of this part by August 15, 1998. Until that
date, a tank barge certificated to carry benzene and benzene containing
cargoes must meet either the gauging requirement of Table 151.05 or the
restricted or closed gauging requirements in effect on September 29,
1994; and a tank barge certificated to carry butyl acrylate cargoes must
meet either the gauging requirements of Table 151.05 or comply with the
open, restricted, or closed gauging requirements in effect on September
29, 1994.

[CGD 95-900, 60 FR 34050, June 29, 1995]

[[Page 136]]

     Table 151.05 to Subpart 151.05 of Part 151--Summary of Minimum
                              Requirements

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                Cargo identification\1\                                                       Tanks                      Cargo transfer      Environmental
--------------------------------------------------------           Cargo  ---------------------------------------------------------------       control                                              Electrical
                                                          Hull    segre-                                                                 ---------------------    Fire      Special requirements in    hazard      Temp.   Tank internal
                                                          type    gation                                       Gauging   Piping                       Cargo    protection       46 CFR Part 151       class and   control     inspect.
              Cargo name                Pressure  Temp.            tank              Type              Vent    device    class   Control    Cargo    handling   required                                group    install.  period--years
                                                                                                                                            tanks     space
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
a.                                            b.     c.      d.     e.     f.......................       g.        h.       i.       j.        k.         l.         m.   n.......................          o.        p.          q.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acetaldehyde..........................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-1     Inert     Vent F        Yes   .55-1(h)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acetic acid...........................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-73..................         I-D        NA           G
                                                                    2 i i                                                                                                  .55-1(g)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acetic anhydride......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-73..................         I-D        NA           G
                                                                    2 i i                                                                                                  .55-1(g)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acetone cyanohydrin...................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                      2 i                                                                                                  .50-70(b)...............
                                                                                                                                                                           .50-73..................
                                                                                                                                                                           .50-81..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acetonitrile..........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acrylic acid..........................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
                                                                                                                                                                           .50-81..................
                                                                                                                                                                           .58-1(a)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Acrylonitrile.........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .55-1(e)................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-70(a)...............
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Adiponitrile..........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV      Open       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Alkylbenzenesulfonic acid (greater        Atmos.  Elev.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-73..................         I-B        NA           G
 than 4%).                                                          2 i i                                                                                                  .58-1(e)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Alkyl(C7-C9) nitrates.................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-81..................          NA        NA           G
                                                                    2 i i                                                                                                  .50-86..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Allyl alcohol.........................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-C        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 137]]


Allyl chloride........................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Aluminum sulfate solution.............    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .58-1(e)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Aminoethylethanolamine................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(b)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ammonia, anhydrous....................    Press.   Amb.      II       1NA  Ind. Pressure...........    SR250    Restr.       II      P-2        NR     Vent F         No   .50-30..................         I-D        NA           G
                                                                    2 i i                             p.s.i.                                                               .50-32..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ammonia, anhydrous....................    Atmos.    Low      II       1NA  Ind. Gravity............       PV    Restr.     II-L      G-2        NR     Vent F         No   .50-30..................         I-D      .40-           8
                                                                    2 i i                                                                                                  .50-32..................               1(b)(1)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ammonium bisulfite solution (70% or       Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-73..................          NA        NA           G
 less).                                                               2 i                                                                                                  .56-1(a), (b), (c)......
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ammonium hydroxide (28% or less NH 3).    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .56-1(a), (b), (c), (f),         I-D        NA           G
                                                                      2 i                                                                                                   (g).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Aniline...............................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Anthracene oil (Coal tar fraction)....    Atmos.   Amb.      II     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................         I-D        NA           G
                                                  Elev.             2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Argon, liquefied......................    Press.    Low     III       1NA  Ind. Pressure...........       SR    Restr.     II-L      P-1        NR     Vent F         No   .40-1(a)................          NA  .40-1(a)           G
                                                                      2 i                                                                                                  .50-30..................
                                                                                                                                                                           .50-36..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Benzene...............................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-60..................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Benzene hydrocarbon mixtures              Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-60..................         I-D        NA           G
 (containing Acetylenes) (having 10%                                2 i i                                                                                                  .56-1(b), (d), (f), (g),
 Benzene or more).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Benzene hydrocarbon mixtures (having      Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-60..................         I-D        NA           G
 10% Benzene or more).                                              2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 138]]


Benzene, Toluene, Xylene mixtures         Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-60..................         I-D        NA           G
 (having 10% Benzene or more).                                      2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butadiene.............................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-2        NR     Vent F        Yes   .50-70(a)...............         I-B        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butadiene, Butylene mixtures              Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-1        NR     Vent F        Yes   .50-30..................         I-B        NA           G
 (containing Acetylenes).                                           2 i i                                                                                                  .50-70(a)...............
                                                                                                                                                                           .50-73..................
                                                                                                                                                                           .56-1(b), (d), (f), (g).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butyl acrylate (all isomers)..........    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butylamine (all isomers)..............    Atmos.   Amb.      II     1 i i  Ind. Gravity............       PV    Closed       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butyl methacrylate....................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Butyraldehyde (all isomers)...........    Atmos.   Amb.     III       1 i  Integral Gravity........       PV      Open       II      G-1        NR     Vent F        Yes   .55-1(h)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Camphor oil (light)...................    Atmos.   Amb.      II     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Carbolic oil..........................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................          NA        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Carbon dioxide, liquefied.............    Press.    Low     III       1NA  Ind. Pressure...........       SR    Restr.      I-L      P-1        NR     Vent F         No   .50-30..................          NA      .40-           G
                                                                      2 i                                                                                                                                         1(b)(1)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Carbon disulfide......................    Atmos.   Amb.      II       1NA  Ind. Gravity............       PV    Restr.       II      G-1     Inert     Vent F        Yes   .50-40..................         I-A        NA           G
                                                                    2 i i                                                                                                  .50-41..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 139]]


Carbon tetrachloride..................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV      Open       II      G-1        NR     Vent N         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cashew nut shell oil (untreated)......    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-2        NR     Vent N        Yes   .50-73..................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Caustic potash solution...............    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
                                                  Elev.               2 i                                                                                                  .55-1(j)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Caustic soda solution.................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
                                                  Elev.               2 i                                                                                                  .55-1(j)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Chlorine..............................    Press.   Amb.       I       1NA  Ind. Pressure...........    SR300  Indirect        I      P-2        NR     Vent F         No   .50-30..................          NA        NA           3
                                                                    2 i i                             p.s.i.                                                               .50-31..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Chlorobenzene.........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV      Open       II      G-1        NR     Vent N        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Chloroform............................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent F         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Chlorohydrins (crude).................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
o-Chloronitrobenzene..................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................          NA        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Chlorosulfonic acid...................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           G
                                                                    2 i i                                                                                                  .50-21..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Coal tar naphtha solvent..............    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-73..................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Coal tar pitch (molten)...............    Atmos.  Elev.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-73..................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Creosote..............................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cresols (all isomers).................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cresols with less than 5% Phenol, see
 Cresols (all isomers).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cresols with 5% or more Phenol, see
 Phenol.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 140]]


Cresylate spent caustic...............    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-73..................          NA        NA           G
                                                                      2 i                                                                                                  .55-1(b)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cresylic acid, sodium salt solution,
 see Cresylate spent caustic.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Crotonaldehyde........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(h)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cyclohexanone.........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(a), (b)...........         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cyclohexanone, Cyclohexanol mixture...    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(b)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cyclohexylamine.......................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(a), (b), (c), (g).         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Cyclopentadiene, Styrene, Benzene         Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent F        Yes   .50-60..................         I-D        NA           G
 mixture.                                                           2 i i                                                                                                  .56-1(b)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iso-Decyl acrylate....................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-70(a)...............          NA        NA           G
                                                                      2 i                                                                                                  .50-81(a), (b)..........
                                                                                                                                                                           .55-1(c)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dichlorobenzene (all isomers).........    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(a), (b)...........         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dichlorodifluoromethane...............    Press.   Amb.     III       1NA  Ind. Pressure...........       SR    Restr.       II      P-1        NR         NR         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,1-Dichloroethane....................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 141]]


2,2'-Dichloroethyl ether..............    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(f)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dichloromethane.......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   No......................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2,4-Dichlorophenoxy acetic acid,          Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .56-1(a), (b), (c), (g).          NA        NA           G
 diethanolamine salt solution.                                        2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2,4-Dichlorophenoxyacetic acid,           Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .56-1(a), (b), (c), (g).          NA        NA           G
 dimethylamine salt solution.                     Elev.               2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2,4-Dichlorophenoxyacetic acid,           Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .56-1(a), (b), (c), (g).          NA        NA           G
 triisopropanolamine salt solution.                                   2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,1-Dichloropropane...................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,2-Dichloropropane...................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,3-Dichloropropane...................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,3-Dichloropropene...................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dichloropropene, Dichloropropane          Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
 mixtures.                                                          2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2,2-Dichloropropionic acid............    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1       Dry     Vent F        Yes   .50-73..................          NA        NA           G
                                                                      2 i                                                                                                  .58-1(e)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diethanolamine........................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diethylamine..........................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diethylenetriamine....................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 142]]


Diethyl ether, see Ethyl ether........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diisobutylamine.......................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diisopropanolamine....................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diisopropylamine......................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
N,N-Dimethylacetamide.................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(b)................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dimethylamine.........................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-2        NR     Vent F        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dimethylethanolamine..................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(b), (c)...........         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dimethylformamide.....................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(e)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,4-Dioxane...........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1     Inert     Vent F        Yes   No......................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Diphenylmethane diisocyanate..........    Atmos.  Elev.      II     1 i i  Integral Gravity........       PV    Closed        I      G-1     Inert     Vent F        Yes   .50-5...................          NA       Yes           G
                                                                      2 i                                                                      Dry                         .56-1(a), (b)...........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Di-n-propylamine......................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dodecyl- dimethyl- amine,                 Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .56-1(b)................          NA        NA           G
 Tetradecyldimethylamine mixture.                                     2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dodecyl phenol........................    Atmos.   Amb.       I     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-73..................         I-D        NA           2
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 143]]


Epichlorohydrin.......................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethanolamine..........................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethyl acrylate........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylamine solution (72% or less).....    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .55-1(b)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
N-Ethylbutylamine.....................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(b)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethyl chloride........................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-2        NR     Vent F        Yes   No......................         I-D        NA           8
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
N-Ethylcyclohexylamine................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(b)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene chlorohydrin.................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene cyanohydrin..................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................          NA        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylenediamine.......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene dibromide....................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene dichloride...................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 144]]


Ethylene glycol monoalkyl ethers......    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-C        NA           G
Including:............................                                2 i
2-Ethoxyethanol.......................
Ethylene glycol butyl ether...........
Ethylene glycol tert-butyl ether......
Ethylene glycol ethyl ether...........
Ethylene glycol methyl ether..........
Ethylene glycol n-propyl ether........
Ethylene glycol isopropyl ether.......
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene glycol hexyl ether...........    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene glycol propyl ether..........    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylene oxide........................    Press.   Amb.       I       1NA  Ind. Pressure...........       SR    Restr.       II      P-2     Inert     Vent F        Yes   .50-10..................         I-B  .40-1(c)           4
                                                                    2 i i                                                                                                  .50-12..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethyl ether...........................    Atmos.   Amb.      II       1NA  Ind. Gravity............       PV    Closed       II      G-1     Inert     Vent F        Yes   .50-40..................         I-C        NA           G
                                                                    2 i i                                                                                                  .50-42..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2-Ethylhexyl acrylate.................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethylidene norbornene.................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-5...................          NA        NA           G
                                                                    2 i i                                                                                                  .50-74..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ethyl methacrylate....................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 145]]


2-Ethyl-3-propylacrolein..............    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ferric chloride solutions.............    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           G
                                                                    2 i i                                                                                                  .50-75..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fluorosilicic acid (30% or less)......    Atmos.   Amb.      II     1 i i  Ind. Gravity............       PV    Closed       II      G-1        NR     Vent F         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-22..................
                                                                                                                                                                           .50-73..................
                                                                                                                                                                           .50-77..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Formaldehyde solution (37% to 50%)....    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .55-1(h)................         I-B        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Formic acid...........................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-73..................         I-D        NA           G
                                                                      2 i                                                                                                  .55-1(i)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Furfural..............................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(h)................         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Glutaraldehyde solution (50% or less).    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Glyoxylic acid solution (50% or less).    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-73..................          NA        NA           G
                                                                    2 i i                                                                                                  .50-81..................
                                                                                                                                                                           .58-1(e)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hexamethylenediamine solution.........    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hexamethyleneimine....................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .56-1(b), (c)...........         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hydrochloric acid.....................    Atmos.   Amb.     III       1NA  Ind. Gravity............     Open      Open       II      G-1        NR     Vent F         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-22..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hydrofluorosilicic acid (25% or less),
 see Fluorosilicic acid (30% or less).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2-Hydroxyethyl acrylate...............    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................          NA        NA           G
                                                                      2 i                                                                                                  .50-70(a)...............
                                                                                                                                                                           .50-73..................
                                                                                                                                                                           .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 146]]


Isoprene..............................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV      Open       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Kraft pulping liquors (free alkali        Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
 content 3% or more) (including:                                      2 i                                                                                                  .56-1(a), (c), (g)......
 Black, Green, or White liquor).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Mesityl oxide.........................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methylacetylene, Propadiene mixture...    Press.   Amb.     III      1 NA  Ind. Pressure...........       SR    Restr.       II      P-2        NR     Vent F        Yes   .50-79..................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methyl acrylate.......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methylamine solution (42% or less)....    Atmos.   Amb.      II       1NA  Ind. Gravity............       PV    Closed       II      G-1        NR     Vent F        Yes   .56-1(a), (b), (c), (g).         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methyl bromide........................    Press.   Amb.       I       1NA  Ind. Pressure...........       SR    Closed        I      P-2        NR     Vent F        Yes   .50-5...................         I-D        NA           2
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methyl chloride.......................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-2        NR     Vent F        Yes   .55-1(c)................         I-D        NA           8
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methylcyclopentadiene dimer...........    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-B        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Methyl diethanolamine.................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .56-1(b), (c)...........         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2-Methyl-5-ethylpyridine..............    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(e)................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 147]]


Methyl methacrylate...................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2-Methylpyridine......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
alpha-Methylstyrene...................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Monochloro- difluoromethane...........    Press.   Amb.     III       1NA  Ind. Pressure...........       SR    Restr.        I      P-1        NR         NR         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Morpholine............................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Motor fuel anti-knock compounds           Atmos.   Amb.       I     1 i i  Ind. Gravity............       PV    Closed        I      G-1        NR     Vent F        Yes   .50-6...................         I-D        NA       .50-6
 (containing lead alkyls).                                          2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Nitric acid (70% or less).............    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-73..................
                                                                                                                                                                           .50-80..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Nitrobenzene..........................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Nitrogen, liquefied...................    Press.    Low     III       1NA  Ind. Pressure...........       SR    Restr.     II-L      P-1        NR     Vent F         No   .40-1(a)................          NA  .40-1(a)           G
                                                                      2 i                                                                                                  .50-30..................
                                                                                                                                                                           .50-36..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1- or 2-Nitropropane..................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-81..................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
o-Nitrotoluene........................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Octyl nitrates (all isomers), see
 Alkyl(C7-C9) nitrates.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Oleum.................................    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-21..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Pentachloroethane.....................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 148]]


1,3-Pentadiene........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Perchloroethylene.....................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   No......................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Phenol................................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           2
                                                                      2 i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Phosphoric acid.......................    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           4
                                                                      2 i                                                                                                  .50-23..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Phosphorus, white (elemental).........    Atmos.  Elev.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1     Water     Vent F        Yes   .50-50..................          NA        NA         4-8
                                                                    2 i i                                                                      Pad
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Phthalic anhydride (molten)...........    Atmos.  Elev.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Polyethylene polyamines...............    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(e)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Polymethylene polyphenyl isocyanate...    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1       Dry     Vent F        Yes   .55-1(e)................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Potassium hydroxide solution, see
 Caustic potash solution.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iso-Propanolamine.....................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Propanolamine (iso-, n-)..............    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .56-1(b), (c)...........         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Propionic acid........................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-73..................         I-D        NA           G
                                                                    2 i i                                                                                                  .55-1(g)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iso-Propylamine.......................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .55-1(c)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 149]]


Propylene oxide.......................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Restr.       II      P-1     Inert     Vent F        Yes   .50-10..................         I-B        NA           G
                                                                    2 i i                                                                                                  .50-13..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iso-Propyl ether......................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1     Inert     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Pyridine..............................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(e)................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium aluminate solution (45% or         Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
 less).                                           Elev.               2 i                                                                                                  .56-1(a), (b), (c)......
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium chlorate solution (50% or less)    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-73..................          NA        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium dichromate solution (70% or        Atmos.   Amb.      II     1 i i  Integral Gravity........     Open    Closed       II      G-1        NR     Vent N         No   .50-5(d)................          NA        NA           G
 less).                                                             2 i i                                                                                                  .50-73..................
                                                                                                                                                                           .56-1(b), (c)...........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium hydroxide solution, see Caustic
 soda solution.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium hypochlorite solution (20% or      Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .50-73..................          NA        NA           G
 less).                                                             2 i i                                                                                                  .56-1(a), (b)...........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium sulfide, hydrosulfide solutions    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-73..................          NA        NA           G
 (H2S 15ppm or less).                                                 2 i                                                                                                  .55-1(b)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium sulfide, hydrosulfide solutions    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .50-73..................          NA        NA           G
 (H2S greater than 15ppm but less than                                2 i                                                                                                  .55-1(b)................
 200ppm).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium sulfide, hydrosulfide solutions    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F         No   .50-73..................          NA        NA           G
 (H2S greater than 200ppm).                                           2 i                                                                                                  .55-1(b)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sodium thiocyanate solution (56% or       Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .58-1(a)................          NA        NA           G
 less).                                                               2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 150]]


Styrene monomer.......................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sulfur (molten).......................    Atmos.  Elev.     III       1 i  Integral Gravity........     Open      Open       II      G-1    Vent N     Vent N        Yes   .50-55..................         I-C      .40-           G
                                                                    2 i i                                                                                                                                         1(f)(1)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sulfur dioxide........................    Press.   Amb.       I       1NA  Ind. Pressure...........       SR    Closed  .......      P-2        NR     Vent F         No   .50-30..................          NA        NA           2
                                                                    2 i i                                                                                                  .50-84..................
                                                                                                                                                                           .55-1(j)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sulfuric acid.........................    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-21..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Sulfuric acid, spent..................    Atmos.   Amb.     III     1 i i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N         No   .50-20..................         I-B        NA           4
                                                                    2 i i                                                                                                  .50-21..................
                                                                                                                                                                           .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,1,2,2-Tetrachloroethane.............    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   No......................          NA        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Tetraethylenepentamine................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(c)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Tetrahydrofuran.......................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(b)...............         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Toluenediamine........................    Atmos.  Elev.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-73..................          NA        NA           G
                                                                      2 i                                                                                                  .56-1(a), (b), (c), (g).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Toluene diisocyanate..................    Atmos.   Amb.       I     1 i i  Integral Gravity........       PV    Closed        I      G-1       Dry     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                      N 2                         .55-1(e)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
o-Toluidine...........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Closed       II      G-1        NR     Vent F        Yes   .50-5...................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-73..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,2,4-Trichlorobenzene................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   No......................         I-D        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 151]]


1,1,2-Trichloroethane.................    Atmos.   Amb.     III     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .50-73..................         I-D        NA           G
                                                                      2 i                                                                                                  .56-1(a)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Trichloroethylene.....................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   No......................         I-D        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1,2,3-Trichloropropane................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-73..................         I-D        NA           G
                                                                      2 i                                                                                                  .56-1(a)................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Triethanolamine.......................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(b)................         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Triethylamine.........................    Atmos.   Amb.      II     1 i i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .55-1(e)................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Triethylenetetramine..................    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR     Vent N        Yes   .55-1(b)................         I-C        NA           G
                                                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Triphenylborane (10% or less), Caustic    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .56-1(a), (b), (c)......          NA        NA           G
 soda solution.                                                       2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Trisodium phosphate solution..........    Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
                                                  Elev.               2 i                                                                                                  .56-1(a), (c)...........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Urea, Ammonium nitrate solution           Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F         No   .56-1(b)................         I-D        NA           G
 (containing more than 2% NH 3).                                      2 i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Valeraldehyde (all isomers)...........    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1     Inert     Vent F        Yes   No......................         I-C        NA           G
                                                                    2 i i
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vanillan black liquor (free alkali        Atmos.   Amb.     III       1 i  Integral Gravity........     Open      Open       II      G-1        NR         NR         No   .50-73..................          NA        NA           G
 content 3% or more).                                                 2 i                                                                                                  .56-1(a), (c), (g)......
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vinyl acetate.........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV      Open       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vinyl chloride........................    Press.   Amb.      II       1NA  Ind. Pressure...........       SR    Closed       II      P-2        NR     Vent F        Yes   .50-30..................         I-D        NA           8
                                                                    2 i i                                                                                                  .50-34..................
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vinyl chloride........................    Atmos.    Low      II       1NA  Ind. Gravity............       PV    Closed     II-L      G-2        NR     Vent F        Yes   .50-30..................         I-D      .40-           8
                                                                    2 i i                                                                                                  .50-34..................               1(b)(1)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 152]]


Vinylidene chloride...................    Atmos.   Amb.      II       1NA  Ind. Gravity............       PV    Closed       II      P-2    Padded     Vent F        Yes   .55-1(f)................         I-D        NA           G
                                                                    2 i i                                                                                                  .50-70(a)...............
                                                                                                                                                                           .50-81(a), (b)..........
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Vinyltoluene..........................    Atmos.   Amb.     III       1 i  Integral Gravity........       PV    Restr.       II      G-1        NR     Vent F        Yes   .50-70(a)...............         I-D        NA           G
                                                                    2 i i                                                                                                  .50-81..................
                                                                                                                                                                           .56-1(a), (b), (c), (g).
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
For requirements see these sections in  ........  .....   .10-1    .13- 5  .15- 1..................    .15-5   .15- 10   .20- 1   .20- 5     .25-1      .25-2        .30   ........................     111.105       .40     .04- 5
 Part 151:.                                                                                                                                                                                               (Sub-
                                                                                                                                                                                                     chapter J)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
See Table 2 of Part 153 for additional cargoes permitted to be carried by tankbarge.
Terms and symbols:
Segregation--Tank--
 Line 1--Segregation of cargo from surrounding waters:
 i = Skin of vessel (single skin) only required. Cargo tank wall can be vessel's hull.
 i i = Double skin required. Cargo tank wall cannot be vessel's hull.
 Line 2--Segregation of cargo space from machinery spaces and other spaces which have or could have a source of ignition:
 i = Single bulkhead only required. Tank wall can be sole separating medium.
 i i = Double bulkhead required. Cofferdam, empty tank, pumproom, tank with Grade E Liquid (if compatible with cargo) is satisfactory.
Internal tank inspection--
 G--Indicates cargo is subject to general provisions of 151.04-5(b).
 Specific numbers in this column are changes from the general provisions.
Abbreviations used:
Tank type: Ind = Independent.
Vent:
 PV = Pressure vacuum valve.
 SR = Safety relief.
Gauging device: Restr. = Restricted.
General usage:
 NR = No requirement.
 NA = Not applicable.
1. The provisions contained in 46 CFR Part 197, subpart C, apply to liquid cargoes containing 0.5% or more benzene by volume.


[USCG 2000-7079, 65 FR 67183, Nov. 8, 2000]

[[Page 153]]



           Subpart 151.10_Barge Hull Construction Requirements



Sec. 151.10-1  Barge hull classifications.

    (a) Each barge constructed or converted in conformance with this
subpart shall be assigned a hull type number.
    (1) Effective dates for certain requirements:
    (i) Barges constructed or converted between July 1, 1964, and June
1, 1970, in accordance with the construction requirements of Sec. Sec.
32.63 and 98.03 of this chapter are considered to comply with the basic
provisions of this subpart and will retain the hull type classification
for the service for which they were originally approved. Changes in
product endorsement will not be considered a change in service, except
when a change to a product of higher specific gravity necessitates a
reevaluation of the intact and damage stability requirements in subpart
E of part 172 of this chapter.
    (2) [Reserved]
    (b) For this purpose the barge hull types shall be defined as
follows:
    (1) Type I barge hull. Barge hulls classed as Type I are those
designed to carry products which require the maximum preventive measures
to preclude the uncontrolled release of the cargo. These barges are
required to meet:
    (i) Standards of intact stability and a modified two compartment
standard of subdivision and damage stability, as specified in subpart E
of part 172 of this chapter; and
    (ii) Hull structural requirements, including an assumed grounding
condition.
    (2) Type I-S (special) barge hulls. Type I-S (special) barge hulls
are those constructed or converted for the carriage of chlorine in bulk
prior to July 1, 1964, and modified to higher stability standards prior
to July 1, 1968, but not meeting the requirements for full Type I
classification.
    (3) Type II barge hull. Barge hulls classed as Type II are those
designed to carry products which require significant preventive measures
to preclude the uncontrolled release of the cargo. These barges are
required to meet:
    (i) Standards of intact stability and a modified one compartment
standard of subdivision and damage stability, as specified in subpart E
of part 172 of this chapter; and
    (ii) Hull structural requirements, including an assumed grounding
condition.
    (4) Type III barge hull. Barge hulls classed as Type III are those
designed to carry products of sufficient hazard to require a moderate
degree of control. These barges are required to meet:
    (i) Standards of intact stability as specified in subpart E of part
172 of this chapter; and
    (ii) Hull structural requirements.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 79-023, 48 FR
51008, Nov. 4, 1983; CGD 88-100, 54 FR 40040, Sept. 29, 1989]



Sec. 151.10-5  Subdivision and stability.

    Each barge must meet the applicable requirements in subchapter S of
this chapter.

[CGD 70-023, 48 FR 51009, Nov. 4, 1983]



Sec. 151.10-15  Certificate endorsement.

    (a)-(b) [Reserved]
    (c) Certificate endorsement. The following information shall be
submitted, and upon approval of calculations shall form part of the
endorsement on the Certificate of Inspection:
    (1) Limiting draft for each hull type service for which approval is
requested.
    (2) Maximum density (lb./gal.) and maximum cargo weight (tons) for
each tank for which approval is requested. Their weights will normally
reflect uniform loading except that for trim purposes the individual
tank cargo weight may exceed the uniform loading tank cargo weight,
corresponding to the barge fresh water deadweight at the limiting draft,
by 5 percent. Where a greater degree of nonuniform loading is desired,
longitudinal strength calculations shall be submitted.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 79-023, 48 FR
51009, Nov. 4, 1983]



Sec. 151.10-20  Hull construction.

    (a) Construction features. (1) Each barge hull shall be constructed
with a suitable bow form (length, shape, and height of headlog) to
protect against diving at the maximum speed at which the barge is
designed to be towed. In

[[Page 154]]

any integrated tow, only the lead barge need comply with this
requirement.
    (2) All ``open hopper'' type barges shall be provided with coamings
around the hopper space and a 36-inch minimum height plowshare
breakwater on the forward rake. The plowshare breakwater may be omitted,
if it is demonstrated to the satisfaction of the Commandant that
sufficient protection is achieved without it. Coamings shall have a
minimum height of 36 inches forward and may be graduated to a minimum
height of 24 inches at midlength and 18 inches thereafter. All hopper
barges constructed with a weathertight rain shield over the hopper space
are exempt from these requirements, except that they shall be provided
with an 18-inch minimum coaming all around the hopper.
    (3) All ``open hopper'' type barges modified for the carriage of
chlorine in bulk shall be provided with 36-inch minimum height coamings
around the hopper.
    (4) All barges in ocean or coastwise service shall be provided with
a structural deck and hatches in accordance with the applicable
provisions of subchapter E of this chapter and the scantling
requirements of the American Bureau of Shipping.
    (b) Hull structural requirements. (1) All Types I, II, and III
barges shall comply with the basic structural requirements of the
American Bureau of Shipping for barges of the ordinary types and the
applicable supplementary requirements of this section.
    (2) Types I and II barges in inland service: A grounding condition
shall be assumed where the forward rake bulkhead rests upon a pinnacle
at the water surface. The maximum hull and tank bending moment and tank
saddle reactions (if applicable) shall be determined. The hull bending
stress shall not exceed the applicable limits of paragraphs (b)(2) (i),
(ii), or (iii) of this section. The maximum tank bending moment and
saddle reaction shall be used in the tank design calculations required
by Sec. 151.15-2(b)(3).
    (i) Independent tanks supported by only two saddles do not
contribute to the strength and stiffness of the barge hull. In such
case, the hull stress shall not exceed either 50 percent of the minimum
ultimate tensile strength of the material or 70 percent of the yield
strength when specified, whichever is greater.
    (ii) Independent tanks supported by three or more saddles contribute
to the strength and stiffness of the hull. In such case, the hull stress
shall not exceed the percentage stress values prescribed in Sec.
151.10-20(b)(2)(i), multiplied by the quantity

(1.5-SWT/UTS),

where SWT is the stress calculated without including the effect of the
          tanks, and UTS is the minimum ultimate tensile strength of the
          material. The value SWT, however, shall in no case be more
          than 75 percent of UTS.

    (iii) Integral tanks may be considered as contributing to the
strength and stiffness of the barge hull. The hull stresses for integral
tank barges shall not exceed the percentage stress values prescribed in
paragraph (b)(2)(i), of this section.
    (3) Types I and II barges in ocean service:
    (i) Independent tank barges with tanks supported by three or more
saddles shall be subjected to a 0.6L\0.6\ trochoidal wave hogsag
analysis to determine the maximum hull and tank bending moments and tank
saddle reactions.
    (ii) All independent tank barges, regardless of the number of saddle
supports shall be subject to a still water bending analysis to determine
the hull bending moment. For those barges with independent tanks
supported by three or more saddles, this analysis shall consider tank-
hull interaction so as to determine tank bending moments and saddle
reactions.
    (iii) The still water tank bending moments and saddle reactions
shall be superimposed upon those obtained by simultaneous application of
the following dynamic loadings:
    (a) Rolling 30[deg] each side (120[deg] full cycle) in 10 seconds.
    (b) Pitching 6[deg] half amplitude (24[deg] full cycle) in 7
seconds.
    (c) Heaving L/80 half amplitude (L/20 full cycle) in 8 seconds.
    (iv) The hull structure and saddle support system shall be analyzed,
using the maximum hull bending moments and saddle reactions obtained
from the

[[Page 155]]

foregoing. Bending stress shall not exceed 60 percent of the yield
strength or 42 percent of the minimum tensile strength of the material,
whichever is less. Critical buckling strength shall be at least 75
percent greater than calculated buckling stresses. The maximum tank
bending moments and saddle reactions shall be used in the tank design
calculations required by Sec. 151.15-3(b)(8).



   Subpart 151.12_Equipment and Operating Requirements for Control of
                  Pollution From Category D NLS Cargoes

    Source: CGD 81-101, 52 FR 7777, Mar. 12, 1987, unless otherwise
noted.



Sec. 151.12-5  Equipment for Category D NLS.

    The Coast Guard endorses the Certificate of Inspection and for ships
making foreign voyages issues the endorsed NLS Certificate required by
Sec. 151.12-10 for an oceangoing non-self-propelled ship to carry as
bulk cargo the following Category D NLSs if the ship meets the
requirements of this part and the requirements applying to ships that
carry Category D NLS cargoes in Sec. Sec. 153.470, 153.486, and 153.490
of this chapter:

Acetic acid
Acrylic acid
Adiponitrile
Aminoethylethanolamine
Ammonium bisulfite solution
Butyl methacrylate
Caustic soda solution
Coal tar pitch
Cyclohexanone
Cyclohexanone, Cychexanol mixture
Dichloromethane
2,2-Dichloropropionic acid
Diethylenetriamine
N,N-Dimethylacetamide
Dimethylethanolamine
Dimethylformamide
1,4-Dioxane
Ethanolamine
N-Ethylcyclohexylamine
Ethylene cyanohydrin
Ethylene glycol monoalkyl ethers
Ethyl methacrylate
Formic acid
Glutaraldehyde solution
Glyoxylic acid solution (50% or less)
Hydrochloric acid
Mesityl oxide
Methyl methacrylate
Morpholine
1- or 2-Nitropropane
Phosphoric acid
Polyethylene polyamines
Polymethylene polyphenyl isocyanate
Propionic acid
iso-Propyl ether
Pyridine
Tetraethylenepentamine
Tetrahydrofuran
Triethanolamine
Triethylenetetramine

[CGD 81-101, 52 FR 7777, Mar. 12, 1989, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989; CGD 92-100, 59 FR 17028, Apr. 11, 1994; CGD 94-
900, 59 FR 45139, Aug. 31, 1994; CGD 94-902, 60 FR 34043, June 29, 1995;
USCG 2000 -7079, 65 FR 67196, Nov. 8, 2000]



Sec. 151.12-10  Operation of oceangoing non-self-propelled ships
Carrying Category D NLS.

    (a) An oceangoing non-self-propelled ship may not carry in a cargo
tank a Category D NLS cargo listed under Sec. 151.12-5 unless the ship
has on board a Certificate of Inspection and for ships making foreign
voyages an NLS Certificate endorsed under that section to allow the
cargo tank to carry the NLS cargo.
    (b) The person in charge of an oceangoing non-self-propelled ship
that carries a Category D NLS listed under Sec. 151.12-5 shall ensure
that the ship is operated as prescribed for the operation of oceangoing
ships carrying Category D NLSs in Sec. Sec. 153.901, 153.909, 153.1100,
153.1102, 153.1104, 153.1106, 153.1124, 153.1126, 153.1128, 153.1130 and
153.1132 of this chapter.

[CGD 81-101, 52 FR 7777, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28974, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



                    Subpart 151.13_Cargo Segregation



Sec. 151.13-1  General.

    This subpart prescribes the requirements for cargo segregation for
cargo tanks. These requirements are based on considerations of cargo
reactivity, stability, and contamination of the surroundings and other
cargoes.

[CGD 88-100. 54 FR 40029, Sept. 29, 1989, as amended by CGD 96-041, 61
FR 50731, Sept. 27, 1996]

[[Page 156]]



Sec. 151.13-5  Cargo segregation--tanks.

    (a) The configurations listed in this paragraph refer to the
separation of the cargo from its surroundings and list the various
degrees of segregation required. Paragraphs and (2) of this section
explain the symbols used in lines 1 and 2, in order, under the tank
segregation column of Table 151.05.
    (1) Segregation of cargo from surrounding waters (Line 1 of Table
151.05).

i = Skin of vessel (single skin) only required. Cargo tank wall can be
vessel's hull.
ii = Double skin required. Cargo tank wall cannot be vessel's hull.
NA = Nonapplicable for this case. Independent tanks already have such
segregation built in through design.

    (2) Segregation of cargo space from machinery spaces and other
spaces which have or could have a source of ignition (Line 2 of Table
151.05).

i = Single bulkhead only required. Tank wall can be sole separating
medium.
ii = Double bulkhead, required. Cofferdam, empty tank, pumproom, tank
with Grade E Liquid (if compatible with cargo) is satisfactory.

    (b) [Reserved]
    (c) If a cofferdam is required for segregation purposes and a
secondary barrier is required for low temperature protection by Sec.
151.15-3(d)(4), the void space between the primary and secondary
barriers shall not be acceptable in lieu of the required cofferdam.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 75-59, 45 FR
70273, Oct. 23, 19805; CGD 96-041, 61 FR 50731, Sept. 27, 1996]



                          Subpart 151.15_Tanks



Sec. 151.15-1  Tank types.

    This section lists the definitions of the various tank types
required for cargo containment by Table 151.05.
    (a) Integral. A cargo containment envelope which forms a part of the
vessel's hull in which it is built, and may be stressed in the same
manner and by the same loads which stress the contiguous hull structure.
An integral tank is essential to the structural completeness of its
vessel's hull.
    (b) Independent. A cargo containment envelope which is not a
contiguous part of the hull structure. An independent tank is built and
installed so as to eliminate, wherever possible (or, in any event, to
minimize) its stressing as a result of stressing or motion of the
adjacent hull structure. In general, therefore, motion of parts of the
tank relative to the adjacent hull structure is possible. An independent
tank is not essential to the structural completeness of its carrying
vessel's hull.
    (c) Gravity. Tanks having a design pressure (as described in Part 54
of this chapter) not greater than 10 pounds per square inch gauge and of
prismatic shape or other geometry where stress analysis is neither
readily nor completely determinate. (Integral tanks are of the gravity
type.)
    (d) Pressure. Independent tanks whose design pressure (as described
in Part 54 of this chapter) is above 10 pounds per square inch gauge and
fabricated in accordance with part 54, of this chapter. Independent
gravity tanks which are of normal pressure vessel configuration (i.e.,
bodies of revolution, in which the stresses are readily determinate)
shall be classed as pressure vessel type tanks even though their maximum
allowable working pressure is less than 10 pounds per square inch gauge.
Pressure vessel tanks shall be of Classes I, I-L, II, II-L, or III, as
defined in subchapter F of this chapter.



Sec. 151.15-3  Construction.

    This section lists the requirements for construction of the types of
cargo tanks defined in Sec. 151.15-1.
    (a) Gravity type tanks. Gravity type cargo tanks vented at a
pressure of 4 pounds per square inch gauge or less shall be constructed
and tested as required by standards established by the American Bureau
of Shipping or other recognized classification society. Gravity type
tanks vented at a pressure exceeding 4 but not exceeding 10 pounds per
square inch gauge will be given special consideration by the Commandant.
    (b) Pressure vessel type tanks. Pressure vessel type tanks shall be
designed and tested in accordance with the requirements of Part 54 of
this chapter.

[[Page 157]]

    (1) Uninsulated cargo tanks, where the cargo is transported, at or
near ambient temperatures, shall be designed for a pressure not less
than the vapor pressure of the cargo at 115 [deg]F. The design shall
also be based on the minimum internal pressure (maximum vacuum), plus
the maximum external static head to which the tank may be subjected.
    (2) When cargo tanks, in which the cargo is transported at or near
ambient temperature, are insulated with an insulation material of a
thickness to provide a thermal conductance of not more than 0.075 B.t.u.
per square foot per degree Fahrenheit differential in temperature per
hour, the tanks shall be designed for a pressure of not less than the
vapor pressure of the cargo at 105 [deg]F. The insulation shall also
meet the requirements of paragraph (f) of this section.
    (3) Cargo tanks in which the temperature is maintained below the
normal atmospheric temperature by refrigeration or other acceptable
means shall be designed for a pressure of not less than 110 percent of
the vapor pressure corresponding to the temperature of the liquid at
which the system is maintained, or the pressure corresponding to the
greatest dynamic and static loads expected to be encountered in service.
For mechanically stressed relieved cargo tanks, additional factors
relating design pressure and maximum allowable pressure shall be as
specified by the Commandant. The material of the tank shall meet the
material requirements specified in part 54 of this chapter for the
service temperature, and this temperature shall be permanently marked on
the tank as prescribed in Sec. 54.10-20 of this chapter.
    (4) The maximum allowable temperature of the cargo is defined as the
boiling temperature of the liquid at a pressure equal to the setting of
the relief valve.
    (5) The service temperature is the minimum temperature of a product
at which it may be contained, loaded and/or transported. However, the
service temperature shall in no case be taken higher than given by the
following formula.

tz=tw-0.25(tw-tB)

where:
tz=Service temperature.
tw=Boiling temperature of gas at normal working pressure of
          container but not higher than +32 [deg]F.
tB=Boiling temperature of gas at atmospheric pressure.


Under normal circumstances, only temperatures due to refrigerated
service will be considered in determining the service temperature.
Refrigerated service for purposes of this paragraph is defined as
service where the temperature is controlled in the process rather than
being caused by atmospheric conditions.
    (6) Heat transmission studies, where required, shall assume the
minimum ambient temperatures of 0 [deg]F still air and 32 [deg]F still
water, and maximum ambient temperatures of 115 [deg]F still air and 90
[deg]F still water.
    (7) Where applicable, the design of the cargo tanks shall
investigate the thermal stresses induced in the tanks at the service
temperature.
    (8) Calculations showing the stress level in the tanks under dynamic
loading conditions for ocean service barges (see Sec. 151.10-20(b)(4))
and grounding conditions for inland service barges (see Sec. 151.10-20-
(b)(2)) shall be submitted to the Commandant for approval. These
calculations shall take into account the local stresses due to the
interaction between the barge hull and the tanks.
    (c) High density cargo. Cargoes with a specific gravity greater than
that for which the scantlings of the tank are designed may be carried
provided that:
    (1) The maximum cargo weight (tons) in a specific tank does not
exceed the maximum cargo weight (tons) endorsed on the certificate of
inspection.
    (2) The scantlings of the tank are sufficient to prevent rupture
under a full head of the higher density cargo. Scantlings meeting
ordinary bulkhead requirements for the full head will satisfy this
requirement.
    (d) Arrangements--(1) Collision protection. (i) Tanks containing
cargoes which are required to be carried in Type I hulls by Table 151.05
shall be located a minimum of 4 feet inboard from the side shell and box
end of the vessel. Tanks containing cargoes which are required to be
carried in Type II

[[Page 158]]

hulls by Table 151.05 shall be located a minimum of 3 feet inboard from
the side shell and box end of the vessel.
    (ii) All independent cargo tanks installed on Type I or Type II
barge hulls shall be protected with suitable collision chocks or
collision straps. A longitudinal collision load of one and one half
times the combined weight of the tank and the cargo shall be assumed.
All other independent cargo tanks shall be provided with suitable
collision chocks or collision straps assuming a longitudinal collision
load equal to the combined weight of the tank and the cargo. The design
bearing stress shall not exceed 2 times the yield strength or 1.5 times
the minimum ultimate strength, whichever is less.
    (iii) Tanks containing cargoes, which are required to be carried in
Type I or Type II hulls by Table 151.05, shall be located a minimum of
25 feet from the head log at the bow. Box barges and trail barges need
not comply with this requirement.
    (2) Inspection clearances. The distance between tanks or between a
tank and the vessel's structure shall be such as to provide adequate
access for inspection and maintenance of all tank surfaces and hull
structure; but shall not normally be less than 15 inches except in way
of web frames or similar major structural members where the minimum
clearance shall be equal to the flange or faceplate width.
    (3) Access openings. Each tank shall be provided with at least a
15x18 diameter manhole, fitted with a cover
located above the maximum liquid level as close as possible to the top
of the tank. Where access trunks are fitted to tanks, the diameter of
the trunks shall be at least 30 inches.
    (4) Low temperature protection. (i) When low temperature cargoes are
to be carried in gravity type tanks at a temperature lower than that for
which the hull steel is adequate, a secondary barrier designed to
contain leaked cargo temporarily shall be provided. The design of the
cargo containment system shall be such that under normal service
conditions, or upon failure of the primary tank, the hull structure
shall not be cooled down to a temperature which is unsafe for the
materials involved. The secondary barrier and structural components of
the hull which may be exposed to low temperatures shall meet the
material requirements (i.e., chemistry and physical properties)
specified in part 54 of this chapter for the service temperature
involved. Heat transmission studies and tests may be required to
demonstrate that the structural material temperatures in the hull are
acceptable.
    (ii) The design shall take into consideration the thermal stresses
induced in the cargo tank at the service temperature during loading.
    (iii) Where necessary, devices for spray loading or other methods of
precooling or cooling during loading shall be included in the design.
    (iv) Pressure-vessel type tanks shall be radiographed in accordance
with the requirements of part 54 of this chapter. For gravity type
tanks, all weld intersections or crossings in joints of primary tank
shells shall be radiographed for a distance of 10 thicknesses from the
intersection. All other welding in the primary tank and in the secondary
barrier, shall be spot radiographed in accordance with the requirements
specified in part 54 of this chapter for Class II-L pressure vessels.
    (v) For nonpressure vessel type containment systems, access shall be
arranged to permit inspection one side each of the primary tank and
secondary barrier, under normal shipyard conditions. Containment systems
which, because of their peculiar design, cannot be visually inspected to
this degree, may be specially considered provided an equivalent degree
of safety is attained.
    (e) Installation of cargo tanks. (1) Cargo tanks shall be supported
on foundations of steel or other suitable material and securely anchored
in place to prevent the tanks from shifting when subjected to external
forces. Each tank shall be supported so as to prevent the concentration
of excessive loads on the supporting portions of the shell or head.
    (2) Foundations, and stays where required, shall be designed for
support and constraint of the weight of the full tank, and the dynamic
loads imposed thereon. Thermal movement shall also be considered.

[[Page 159]]

    (3) Foundations and stays shall be suitable for the temperatures
they will experience at design conditions.
    (4) Cargo tanks may be installed ``on deck,'' ``under deck,'' or
with the tanks protruding through the deck. All tanks shall be installed
with the manhole openings located in the open above the weather deck.
Provided an equivalent degree of safety is attained, the Commandant may
approve cargo tanks installed with manhole openings located below the
weather deck. Where a portion of the tank extends above the weather
deck, provision shall be made to maintain the weathertightness of the
deck, except that the weathertightness of the upper deck need not be
maintained on:
    (i) Vessels operating on restricted routes which are sufficiently
protected; or,
    (ii) Open hopper type barges of acceptable design.
    (5) No welding shall be performed on tanks which require and have
been stress relieved unless authorized by the Commandant.
    (f) Materials. (1) Materials used in the construction of cargo tanks
shall be suitable for the intended application and shall be in
accordance with the applicable requirements of part 54 of this chapter.
For cargoes carried at low temperatures, the tank supports and
foundations, and portions of the hull which may be exposed to low
temperature, shall also meet the applicable requirements of that part.
    (2) When required, cargo tanks shall be lined with rubber or other
material acceptable to the Commandant. The interior surfaces of the
cargo tanks shall be made smooth, welds chipped or ground smooth, and
the surfaces thoroughly cleaned before the lining is applied. The lining
material shall be resistive to attack by the cargo, not less elastic
than the metal of the tank proper, and nonporous when tested after
application. It shall be of substantially uniform thickness. The lining
shall be directly bonded to the tank plating, or attached by other
satisfactory means acceptable to the Commandant.
    (g) Insulation. (1) Insulation, when provided, shall be compatible
with the cargo and the tank materials.
    (2) Insulation in a location exposed to possible high temperature or
source of ignition shall be one of the following:
    (i) Incombustible, complying with the requirements of Subpart
164.009 of Part 164 of this chapter; or
    (ii) Fire retardant, having a flame spread rating of 50 or less as
determined by ASTM Specification E 84 (incorporated by reference, see
Sec. 151.01-2) (Tunnel Test); or,
    (iii) Nonburning or ``self-extinguishing'' as determined by ASTM
Specification D 4986, ``Horizontal Burning Characteristics of Cellular
Polymeric Materials'' (incorporated by reference, see Sec. 151.01-2)
and covered by a steel jacket having a minimum thickness of 18 gauge
(0.0428 inches) (U.S. Standard Gauge) or an equivalent means of
protection acceptable to the Commandant.
    (3) Insulation in a location protected against high temperature or
source of ignition need satisfy no requirement for combustibility.
    (4) Insulation shall be impervious to water vapor, or have a vapor-
proof coating of a fire-retardant material acceptable to the Commandant.
Unless the vapor barrier is inherently weather resistant, tanks exposed
to the weather shall be fitted with a removable sheet metal jacket of
not less than 18 gauge over the vapor-proof coating and flashed around
all openings so as to be weathertight. Insulation which is not exposed
to the weather when installed on tanks carrying cargoes above ambient
temperatures need not be impervious to water vapor nor be covered with a
vapor-proof coating.
    (5) Insulation shall be adequately protected in areas of possible
mechanical damage.
    (h) Fire exposure protection. Tanks which are provided with fire
exposure protection of one of the following categories may be allowed a
reduction in the size of relief valves.
    (1) Approved incombustible insulation meeting the requirements of
subpart 164.007 of part 164 of this chapter which is secured to the tank
with steel bands.
    (2) Located in a hold or protected by a self-supporting steel jacket
or cover (such as a hopper cover) of at least 10 gauge (0.1345) for
insulation.

[[Page 160]]

    (i) Tanks not protected against fire exposure as described in this
paragraph shall not be permitted a reduction in size of relief valves.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989; USCG-1999-5151, 64 FR 67183, Dec. 1, 1999; USCG-
2000-7790, 65 FR 58463, Sept. 29, 2000]



Sec. 151.15-5  Venting.

    This section contains definitions and requirements for the various
methods of venting specified in Table 151.05. In addition to the
requirement that all vents must penetrate into tanks at the top of the
vapor space, the following methods of venting and the applicable
restrictions are listed:
    (a) Open venting. A venting system which offers no restriction
(except pipe losses and flame screen, where used) to the movement of
liquid or vapor to or from the cargo tank (via the vent) under normal
operating conditions. The total cross-sectional area of the vents shall
not be less than the total cross-sectional area of the filling pipe or
pipes. Ullage openings may be counted as part of the required cross-
sectional area: Provided, That each cargo tank has at least one
permanent vent. The minimum size of a cargo tank vent shall be not less
than 2\1/2\ inches. The outlet end of the vent shall terminate in a
gooseneck bend and shall be located at a reasonable height above the
weather deck, clear of all obstructions. No shut-off valve or frangible
disk shall be fitted in the vent lines except that a float check valve
may be installed so as to exclude the entry of water into the tank
(i.e., to prevent downflooding). An open venting system may be fitted
with a flame screen.
    (b) Pressure-vacuum venting. A normally closed venting system fitted
with a device to automatically limit the pressure or vacuum in the tank
to design limits. Pressure-vacuum relief valves shall comply with the
requirements of subpart 162.017 of this chapter. The required capacity
of the venting system shall be in accordance with part 54 of this
chapter.
    (c) Safety relief venting. A closed venting system fitted with a
device to automatically limit the pressure in the tank to below its
maximum allowable working pressure. The maximum safety relief valve
setting shall not exceed the maximum allowable working pressure of the
tank. For cargoes carried at ambient temperatures, the minimum safety
relief valve setting shall correspond to the saturated vapor pressure of
the cargo at 105 [deg]F if carried in an insulated tank, or 115 [deg]F
if carried in an uninsulated tank. For cargoes carried below ambient
temperature, the safety relief valve setting shall be selected to
provide a suitable margin between normal operating pressure of the tank
and the opening pressure of the valve but in no case shall it exceed the
maximum allowable working pressure of the tank. The safety relief valves
shall be of a type approved under subparts 162.001 or 162.018 of
subchapter Q of this chapter. The required capacity of the safety relief
valves shall be in accordance with the requirements of part 54 of this
chapter.
    (d) Rupture disks. (1) When required by the nature of the cargo,
rupture disks may be installed in lieu of or in addition to other
pressure limiting devices in accordance with the requirements of Sec.
54.15-13 of this chapter.
    (2) When a pressure-vacuum relief valve or safety relief valve
normally protected by a rupture disk or breaking pin device is exposed
to the cargo due to breakage of the disk, the valve shall be reinspected
before being returned to service.



Sec. 151.15-6  Venting piping.

    (a) The back pressure in the relief valve discharge lines shall be
taken into account when determining the flow capacity of the relief
valve to be used. The back pressure in the discharge line shall be
limited to 10 percent of the valve operating pressure or a compensating-
type valve shall be used. Suitable provision shall be made for draining
condensate which may accumulate in the vent piping.
    (b) [Reserved]



Sec. 151.15-10  Cargo gauging devices.

    This section contains definitions and requirements for types of
gauging devices specified in Table 151.05.
    (a) Open gauging. A gauging method which uses an opening in the
cargo tank and which may expose the gauge

[[Page 161]]

user to the cargo and its vapors. Examples of this type are gauge hatch,
ullage hole.
    (b) Restricted. A gauging device which penetrates the cargo tank and
which, in operation, causes or permits the release to the atmosphere of
small quantities of cargo vapor or liquid. The amount of cargo released
is controlled by the small diameter of the tank penetration opening and
by a locally operated valve or similar closure device in that opening.
When not in use, this type gauging device is closed to maintain the
complete integrity of cargo containment. Examples of this type are
rotary tube, fixed tube, slip tube, sounding tube. (See Sec. Sec.
151.03-49 and 151.15-10(g).)
    (c) Closed. A gauging device which penetrates the cargo tank, but
which is part of a closed system maintaining the complete integrity of
cargo containment. This device is designed and installed so as not to
release cargo liquid or vapor in any amount to the atmosphere. Examples
of this type are automatic float, continuous tape (magnetic coupled),
sight glass (protected), electronic probe, magnetic, differential
pressure cell.
    (d) Isolated or indirect. A gauging method or device which is
isolated from the tank (no penetration of the tank shell) and which may
employ an indirect measurement to obtain the desired quantity. Examples
of this type are weighing of cargo, sonic depth gauge (without
penetration of tank shell), pipe flow meter.
    (e) All gauging devices and related fixtures which form a part of
the cargo containment barrier shall be of suitable material and shall be
designed for the pressure and temperature of the cargo in accordance
with the requirements of Subchapter F of this chapter.
    (f) Use of restricted gauging devices. (1) When required in Table
151.05, cargoes carried under pressure shall have restricted gauging
devices designed so that the maximum bleed valve opening is not larger
than 0.055;inch; diameter, unless provided with an excess flow valve.
Sounding tubes are prohibited for use with cargoes having a vapor
pressure in excess of 14.7 p.s.i.a. at 115 [deg]F, if carried in an
uninsulated tank, or at 105 [deg]F, if carried in an insulated tank.
    (2) When utilizing a sounding tube, the cargo tank vent system shall
be designed to prevent the discharge of cargo through the sounding tube
due to pressure build up in the cargo tank vapor space. (See Sec.
151.03-43) When cargoes carried at atmospheric pressure are required to
have a restricted gauging device, open gauges may be provided in
addition to restricted gauges for this type of cargo. However, open
gauges may not be used while cargo transfer operations are actually
being performed.
    (g) Fixed tube gauges are not acceptable as primary means of
gauging. They may be used as a check on the calibration of other gauging
devices.
    (h) For pressure-vessel type tanks, each automatic float, continuous
reading tape or similar type gauge not mounted directly on the tank or
dome shall be fitted with a shutoff device located as close to the tank
as practicable. When an automatic float gauging device, which gauges the
entire height of the tank, is used, a fixed tube gauge set in the range
of 85 percent to 90 percent of the water capacity of the tank shall be
provided in addition as a means of checking the accuracy of the
automatic float gauge, or other alternate means acceptable to the
Commandant may be used.
    (i) Gauge glasses of the columnar type are prohibited.
    (j) Flat sight glasses may be used in the design of automatic float
continuous reading tape gauges. However such glasses shall be made of
high strength material, suitable for the operating temperatures, of not
less than one-half inch in thickness and adequately protected by a metal
cover.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by USCG-2005-22329,
70 FR 57183, Sept. 30, 2005]



                      Subpart 151.20_Cargo Transfer



Sec. 151.20-1  Piping--general.

    (a) Cargo piping systems shall be arranged and fabricated in
accordance with this section and Subchapter F. The class of piping
system required for a specific cargo shall be as listed in Table 151.05
as a minimum; however, a

[[Page 162]]

higher class may be required when the actual service temperature or
pressure so dictates. See Table 56.04-2 of this chapter.
    (b) Piping system components shall be suitable for use with the
cargoes for which the barge is certificated, and shall be of materials
listed in Subchapter F of this chapter, or such other material as the
Commandant may specifically approve. All piping materials shall be
tested in accordance with the requirements of Subchapter F of this
chapter. The valve seat material, packing, gaskets, and all other
material which comes into contact with the cargo shall be resistant to
the chemical action of the cargoes for which the barge is certificated.
    (c) Cargo piping systems, when subject to corrosive attack of the
cargo, and when serving cargo tanks which are required by this
subchapter to be lined or coated, shall be constructed of, lined or
coated with corrosion-resistant material. Vent systems shall be
similarly constructed, lined, or coated up to and including the vent
control device.
    (d) All piping systems components shall have a pressure rating at
operating temperature (according to the applicable American National
Standards Institute, Inc., pressure/temperature relations) not less than
the maximum pressure to which the system may be subjected. Piping which
is not protected by a relief valve, or which can be isolated from its
relief valve, shall be designed for the greatest of:
    (1) The cargo vapor pressure at 115 [deg]F.
    (2) The maximum allowable working pressure of the cargo tank.
    (3) The pressure of the associated pump or compressor relief valve.
    (4) The total discharge head of the associated pump or compressor
where a discharge relief valve is not used.

The escape from cargo piping system relief valves shall be run to
venting system or to a suitable recovery system. Provisions shall be
made for pressure relief of all piping, valves, fittings, etc., in which
excessive pressure build-up may occur because of an increase in product
temperature.
    (e) Provisions shall be made by the use of offsets, loops, bends,
expansion joints, etc., to protect the piping and tank from excessive
stress due to thermal movement and/or movements of the tank and hull
structure. Expansion joints shall be held to a minimum and where used
shall be subject to individual approval by the Commandant.
    (f) Low temperature piping shall be isolated from the hull
structure. Where necessary, arrangements to provide for the protection
of the hull structure from leaks in low temperature systems in way of
pumps, flanges, etc., shall be provided.
    (g) Connections to tanks shall be protected against mechanical
damage and tampering. Underdeck cargo piping shall not be installed
between the outboard side of cargo containment spaces and the skin of
the barge, unless provision is made to maintain the minimum inspection
and collision protection clearances (where required) between the piping
and the skin. Cargo piping which is external to tanks, and is installed
below the weather deck shall be joined by welding, except for flanged
connections to shutoff valves and expansion joints.
    (h) Piping shall enter independent cargo tanks above the
weatherdeck, either through or as close to the tank dome as possible.
    (i) Horizontal runs of cargo piping on integral tank barges may be
run above or below the weatherdeck. When run below the weatherdeck, the
following are applicable:
    (1) Horizontal runs located entirely within integral cargo tanks
shall be fitted with a stop valve, located inside the tank that is being
serviced and operable from the weatherdeck. There shall be cargo
compatibility in the event of a piping failure.
    (2) Horizontal runs of cargo piping installed in pipe tunnels may
penetrate gravity type tanks below the weatherdeck: Provided, That each
penetration is fitted with a stop valve operable from the weatherdeck.
If the tunnel is directly accessible from the weatherdeck without
penetrating the cargo tank, the stop valve shall be located on the
tunnel side. If the tunnel is not accessible from the weatherdeck, the
valve shall be located on the tank side of the penetration.

[[Page 163]]

    (3) The tunnel shall comply with all tank requirements for
construction, location, ventilation, and electrical hazard. There shall
be cargo compatibility in the event of a piping failure.
    (4) The tunnel shall have no other openings except to the
weatherdeck or a cargo pumproom.



Sec. 151.20-5  Cargo system valving requirements.

    For the purpose of adequately controlling the cargo, both under
normal operating and casualty conditions, every cargo piping system
shall be provided with one of the following sets of control valves and
meet the requirements listed below. Cargo tanks, whether gravity or
pressure vessel type, for cargoes having a saturated vapor pressure of
10 pounds per square inch gauge or less at 115 [deg]F (105 [deg]F if the
tank is insulated) shall be provided with a valving system designated as
Gravity-1. Cargo tanks, whether gravity or pressure vessel type, for
cargoes which are carried below ambient temperature and whose vapor
pressure is maintained at 10 pounds per square inch gauge or below shall
be provided with a valving system designated as Gravity-2. Cargo tanks
for cargoes which have vapor pressures above 10 p.s.i.g. at 115 [deg]F
(105 [deg]F if tank is insulated) shall be provided with a valving
system designated as Pressure-1. Cargo tanks for cargoes which have
vapor pressures above 10 pounds per square inch gauge at 115 [deg]F (105
[deg]F if tank is insulated) and which require greater protection due to
their hazardous characteristics shall be provided with a valving system
designated as Pressure-2. The requirements of paragraphs (a) through (d)
of this section for stop valves or excess flow valves to be fitted at
tank penetrations are not applicable to nozzles at which pressure vacuum
or safety relief valves are fitted.
    (a) Gravity-1 (G-1). (1) One manually operated stop valve shall be
installed on each tank filling and discharge line, located near the tank
penetration.
    (2) One stop valve or blind flange shall be installed at each cargo
hose connection. When a cargo hose connection is in use, it shall be
provided with a stop valve; which may be part of the vessel's equipment
or may be part of the shore facility and attached to the barge end of
the loading hose. When a cargo hose connection is not in use, it may be
secured with a blind flange.
    (3) If individual deepwell pumps are used to discharge the contents
of each cargo tank, and the pumps are provided with a remote shutdown
device, a stop valve at the tank is not required on the tank discharge
line.
    (b) Gravity-2 (G-2). (1) One manually operated stop valve shall be
installed on each tank penetration, located as close as possible to the
tank.
    (2) One remote operated, quick closing shut-off valve shall be
installed at each cargo hose connection.
    (3) A remote shutdown device shall be installed for all cargo
handling machinery.
    (c) Pressure-1 (P-1). (1) One manually operated stop valve and one
excess flow valve shall be installed on each tank penetration, located
as close as possible to the tank.
    (2) One manually operated stop valve shall be installed at each
cargo hose connection, when in use.
    (d) Pressure-2 (P-2). (1) One manually operated stop valve and one
excess flow valve shall be installed at each tank penetration, located
as close as possible to the tank.
    (2) One remote operated quick closing shutoff valve shall be
installed at each cargo hose connection when in use.
    (3) No tank penetration shall be less than 1 inch diameter.
    (e) Cargo tank penetrations which are connections for gauging or
measuring devices need not be equipped with excess flow or remote
operated quick closing valves provided that the opening is constructed
so that the outward flow of tank contents shall not exceed that passed
by a No. 54 drill size (0.055-inch diameter).
    (f) The control system for any required quick closing shutoff valves
shall be such that the valves may be operated from at least two remote
locations on the vessel; if means of fire protection is required by
Table 151.05, the control system shall also be provided with fusible
elements designed to melt between 208 [deg]F and 220 [deg]F, which will
cause the quick closing shutoff valves to close in case of fire. Quick

[[Page 164]]

closing shutoff valves shall be of the fail-closed (closed on loss of
power) type and be capable of local manual operation. Quick closing
shutoff valves shall operate from full open to full closed under all
service conditions in not more than 10 seconds, without causing
excessive pressure surges.
    (g) Excess flow valves, where required, shall close automatically at
the rated closing flow of vapor or liquid as tested and specified by the
manufacturer. The piping, including fittings, valves, and appurtenances
protected by an excess flow valve, shall have a greater capacity than
the rated closing flow of the excess flow valve. Excess flow valves may
be designed with a bypass not to exceed 0.040-inch diameter opening to
allow equalization of pressure, after an operating shutdown.
    (h) Suitable means shall be provided to relieve the pressure and
remove liquid contents from cargo lines and hoses to the cargo tank or
other safe location prior to effecting disconnections.



Sec. 151.20-10  Cargo system instrumentation.

    (a) Each tank operated at other than ambient temperature shall be
provided with at least one remote reading temperature sensor located in
the liquid phase of the cargo. The temperature gauge shall be located at
the cargo handling control station or another approved location.
    (b) Where required, each tank equipped with safety relief valves
shall be fitted with a pressure gauge which shall be located at the
cargo handling control station or at another approved location.



Sec. 151.20-15  Cargo hose if carried on the barge.

    (a) Liquid and vapor line hose used for cargo transfer shall be of
suitable material resistant to the action of the cargo. Hose shall be
suitable for the temperatures to which it may be subjected and shall be
acceptable to the Commandant.
    (b) Hose subject to tank pressure, or the discharge pressure of
pumps or vapor compressors, shall be designed for a bursting pressure of
not less than 5 times the maximum safety relief valve setting of the
tank, pump, or compressor, whichever determines the maximum pressure to
which the hose may be subjected in service.
    (c) Each new type of cargo hose, complete with end fittings, shall
be prototype tested to a pressure not less than five times its specified
maximum working pressure. The hose temperature during this prototype
test shall duplicate the intended extreme service temperature.
Thereafter, each new length of cargo hose produced shall be
hydrostatically tested at ambient temperature to a pressure not less
than twice its maximum working pressure nor more than two-fifths its
bursting pressure. The hose shall be marked with its maximum working
pressure, and if used in other than ambient temperature service, its
maximum or minimum temperature.



Sec. 151.20-20  Cargo transfer methods.

    (a) Cargo transfer may be accomplished by means of gravity, pumping,
vapor or gas pressurization, or fluid displacement unless otherwise
provided in Subpart 151.50 of this part.
    (b) Vapor or gas pressurization may be used only in transferring
cargo from pressure vessel type cargo tanks. The pressurizing vapor or
gas lines shall be provided with safety relief device in the lines set
to open at a pressure no greater than 90 percent of the set pressure of
the cargo tank safety relief valve. The pressurizing line shall be
fitted with a stop valve at the tank, and a check valve to prevent the
accidental release of cargo through the pressure line.
    (c) Fluid displacement is permitted with either gravity or pressure
vessel type cargo tanks. The displacing fluid shall enter the tank under
low relative pressure. The fluid entry line shall be fitted with a
safety relief valve set to lift at a pressure no higher than 80 percent
of the cargo tank safety relief valve setting.
    (d) When cargo vapors are flammable, combustible or toxic, cargo
filling lines entering the top of the tank shall lead to a point at or
near the bottom. Spray filling lines, discharging near the top of the
tank, may be fitted in lieu of, or in addition to, the above cargo
filling lines.

[[Page 165]]



                  Subpart 151.25_Environmental Control



Sec. 151.25-1  Cargo tank.

    When carrying certain commodities regulated by this subchapter, one
of the following types of cargo protection may be required, within the
main cargo tank, and in some cases, in the space between the primary and
secondary barriers.
    (a) Inerted. All vapor spaces within the cargo tank are filled and
maintained with a gas or vapor which will not support combustion and
which will not react with the cargo.
    (b) Padded. All vapor spaces within the cargo tanks are filled and
maintained with a liquid, gas (other than air), or vapor which will not
react with the cargo.
    (c) Ventilated (forced). Vapor space above the liquid surface in the
tank is continuously swept with air by means of blowers or other
mechanical devices requiring power.
    (d) Ventilated (natural). Vapor space above the liquid surface in
the tank is continuously swept with atmospheric air without the use of
blowers or other mechanical devices requiring power (e.g., ``chimney-
effect'' ventilation).
    (e) Dry. All vapor space within the cargo tank is filled and
maintained with a gas or vapor containing no more than 100 ppm water.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.25-2  Cargo handling space.

    Pump rooms, compressor rooms, refrigeration rooms, heating rooms,
instrument rooms or other closed spaces regularly entered by operating
personnel, in which work is performed on the cargo or in which the cargo
movement is locally controlled, may be required to be fitted with one of
the following types of ventilation:
    (a) Forced ventilation. The forced ventilation system shall be
designed to insure sufficient air movement through these spaces to avoid
the accumulation of toxic or flammable vapors and to insure sufficient
oxygen to support life, and, in any event, the ventilation system shall
have a minimum capacity sufficient to permit a change of air every 3
minutes.
    (b) Natural ventilation. The natural ventilation system shall be
designed to insure sufficient air movement to avoid the accumulation of
toxic or flammable vapors and to insure sufficient oxygen to support
life.



               Subpart 151.30_Portable Fire Extinguishers



Sec. 151.30-1  Type.

    When required by Table 151.05, approved portable fire extinguishers
shall be installed in accordance with Subpart 34.50 of this chapter. The
fire extinguishing media shall be dry chemical or other suitable agent
for all locations.



      Subpart 151.40_Temperature or Pressure Control Installations



Sec. 151.40-1  Definitions.

    This section defines the various methods by which the cargo may be
heated or cooled.
    (a) Boiloff. Cargo pressure and temperatures are maintained by
permitting the cargo to boil naturally and the cargo vapor thus
generated removed from the tank by venting.
    (b) External cargo cooling--(1) Cargo vapor compression. A
refrigeration system in which the cargo vapors generated within the tank
are withdrawn, compressed, and the lower energy vapor or its condensate
returned to the tank.
    (2) External heat exchange. A refrigeration system in which the
cargo vapor or liquid is cooled outside the cargo tanks by being passed
through a heat exchanger. Refrigeration is not accomplished by direct
compression of the cargo.
    (c) Internal heat exchange. A refrigeration system in which a
cooling fluid is passed through heat transfer coils immersed in the
cargo tank liquid or vapor phases.
    (d) Tank refrigeration. A refrigeration system in which the cooling
fluid is passed around the cargo tank exterior in order to remove heat
from the tank or its surroundings.

[[Page 166]]

    (e) No refrigeration. A system that allows the liquefied gas to warm
up and increase in pressure. The insulation and tank design pressure
shall be adequate to provide for a suitable margin for the operating
time and temperatures involved.
    (f) Tank heating. (1) A system in which the cargo is heated by means
of steam or other heat transfer fluid running through coils within or
around the tank. The cargo itself does not leave the tank.
    (2) A recirculating system in which the cargo leaves the tank, is
pumped through a heater and then returned to the tank.



Sec. 151.40-2  Materials.

    Materials used in the construction of temperature or pressure
control systems shall be suitable for the intended application and meet
the requirements of Subchapter F and the Special Requirements section of
this subchapter.



Sec. 151.40-5  Construction.

    Construction of machinery or equipment, such as heat exchangers,
condensers, piping, etc., associated with temperature or pressure
control systems shall meet the requirements of Subchapter F of this
chapter. The electrical portions of these installations shall meet the
requirements of Subchapter J of this chapter.



Sec. 151.40-10  Operational requirements.

    Control systems, required by Table 151.05 shall be provided with an
audible or visual high cargo temperature or high cargo pressure alarm
which is discernible at the towboat. The alarm shall operate when either
the pressure or the temperature exceeds the operating limits of the
system. The alarm may monitor either pressure or temperature, but must
be independent of the control system.



Sec. 151.40-11  Refrigeration systems.

    (a) Boiloff systems. The venting of cargo boiloff to atmosphere
shall not be used as a primary means of temperature or pressure control
unless specifically authorized by the Commandant.
    (b) Vapor compression, tank refrigeration, and secondary
refrigeration systems: The required cooling capacity of refrigeration
systems shall be sufficient to maintain the cargo at design operating
conditions with ambient temperature of 115 [deg]F still air and 90
[deg]F still water. The number and arrangement of compressors shall be
such that the required cooling capacity of the system is maintained with
one compressor inoperative. Portions of the system other than the
compressors need not have standby capacity.



                        Subpart 151.45_Operations



Sec. 151.45-1  General.

    (a) Barges certificated as tank barges (Subchapter D of this
chapter) or cargo barges (Subchapter I of this chapter) for the carriage
of cargoes regulated by this subchapter shall meet all applicable
requirements for operations in the appropriate subchapter; in addition,
requirements prescribed in this subpart shall apply to either type of
certification.
    (b) [Reserved]



Sec. 151.45-2  Special operating requirements.

    (a) The requirements of this section shall apply to all barges
carrying in bulk any cargoes regulated by this subchapter; however, the
provisions of this section are not applicable to such barges when empty
and gas-freed.
    (b) When it is necessary to operate box or square-end barges as lead
barges of tows, the person in charge of the towing vessel shall control
the speed to insure protection against diving and swamping of such
barges, having due regard to their design and freeboard, and to the
operating conditions.
    (c) No cargo tank hatch, ullage hole, or tank cleaning openings
shall be opened or remain open except under the supervision of the
person in charge, except when the tank is gas free.
    (d) Barges, when tendered to the carrier for transportation, shall
have all bilges and void spaces (except those used for ballasting)
substantially free of water. Periodic inspections and necessary pumping
shall be carried out to insure maintenance of such water-free condition
in order to minimize the free surface effects, both in longitudinal and
transverse directions. Except when

[[Page 167]]

otherwise considered necessary for inspection or pumping, all hatch
covers and other hull closure devices for void spaces and hull
compartments other than cargo spaces shall be closed and secured at all
times.
    (e) Cargo signs and cards. (1) Warning signs shall be displayed on
the vessel, port and starboard, facing outboard without obstructions, at
all times except when the vessel is gas free. The warning sign shall be
rectangular and a minimum of 3 feet wide and 2 feet high. It shall be of
sufficient size to accommodate the required alerting information, which
shall be shown in black block style letters and numerals (characters) at
least 3 inches high on a white background. The minimum spacing between
adjacent words and lines of characters shall be 2 inches. The minimum
spacing between adjacent characters shall be one-half inch. All
characters shall have a minimum stroke width of one-half inch and shall
be a minimum of 2 inches wide, except for the letters ``M'' and ``W'',
which shall be a minimum of 3 inches wide, and except for the letter
``I'' and the Numeral ``1'', which may be \1/2\-inch wide. The signs
shall have a 2-inch minimum white border clear of characters. The signs
shall be maintained legible. The alerting information shall include the
following:

                                 Warning

                             Dangerous Cargo

    (This sign may be covered or removed when Subchapter O commodities
are not being carried.)

                               No Visitors

                               No Smoking

    (This sign may be removed or covered when the commodity is not
flammable or combustible.)

                             No Open Lights

    (This sign may be removed or covered when the commodity is not
flammable or combustible.)

    (2)(i) Names and locations of all cargoes will be displayed in a
readily discernible manner on all barges carrying one or more
commodities regulated by this subchapter. This may be an individual sign
at or on each tank or by a single sign similar to the following example:


                            Tank No.                              Cargo

IP.............................................................   /xxxx/
IS.............................................................   /xxxx/
2P.............................................................   /xxxx/
2S.............................................................   /xxxx/



These signs may be printed, handwritten, permanent or changeable, but be
visible and readable at all times. These signs should be as readable, as
those specified in paragraph (e)(1) of this section. Cargoes regulated
by other subchapters will be included whenever carried simultaneously
with commodities regulated by this subchapter.
    (ii) When the dangerous cargo barge is carrying only a single
product, the Warning Sign required by paragraph (e)(1) of this section
can be considered as meeting the requirements for the cargo location
sign. The name of the commodity shall be added to the Warning Sign.
    (3) A cargo information card for each cargo regulated by this
subchapter shall be carried on the bridge or in the pilot house of the
towing vessel, readily available for use by the person in charge of the
watch. This information card shall also be carried aboard the barge,
mounted near the Warning Sign required by paragraph (e)(1) of this
section, in such position as to be easily read by a man standing on the
deck of the barge. The minimum card size shall be 7x9\1/
2\. The card shall have legible printing on one side only.
The card shall be laminated in clear plastic or otherwise made
weatherproof. The following data shall be listed:
    (i) Cargo identification and characteristics. Identification of the
cargo, as listed in Table 151.05, its appearance and odor. A statement
of the hazards involved and instructions for the safe handling of the
cargo and, as applicable, the need for special cargo environments.
    (ii) Emergency procedures. Precautions to be observed in the event
of spills, leaks, or equipment or machinery breakdown and/or
uncontrolled release of the cargo into the waterway or atmosphere.
Precautions to be observed in the event of exposure of personnel to
toxic cargoes.

[[Page 168]]

    (iii) Firefighting procedures. Precautions to be observed in the
event of a fire occurring on or adjacent to the barge, and enumeration
of firefighting media suitable for use in case of a cargo fire.
    (f) Surveillance. During the time the cargo tanks contain any amount
of liquid or gaseous dangerous cargoes requiring Type I or Type II barge
hulls, the barge shall be under surveillance, as set forth in this
paragraph:
    (1) The licensed operator, person in command, and mate of a vessel
towing a tank barge that need not be manned, and each of them, shall be
responsible for monitoring the security and integrity of the tank barge
and for ensuring adherence to proper safety precautions. These
responsibilities include, but are not limited to--
    (i) Ensuring that every tank barge added to the tow has all tank
openings properly secured; has its freeing-ports and scuppers, if any,
unobstructed; meets any loadline or freeboard requirements; and neither
leaks cargo into the water, voids, or cofferdams nor leaks water into
the tanks, voids, or cofferdams;
    (ii) Ensuring that every tank barge in the tow is properly secured
within the tow;
    (iii) Ensuring that periodic checks are made of every tank barge in
the tow for leakage of cargo into the water, voids, or cofferdams and
for leakage of water into the tanks, voids, or cofferdams;
    (iv) Knowing the cargo of every tank barge in the tow, all hazards
associated with the cargo, and what to do on discovery of a leak;
    (v) Ensuring that the crew of the vessel know the cargo of every
tank barge in the tow, all hazards associated with the cargo, and what
to do on discovery of a leak;
    (vi) Reporting to the Coast Guard any leaks from a tank barge in the
tow into the water, as required by 33 CFR 151.15; and
    (vii) Ensuring that the crew of the vessel and other personnel in
the vicinity of the tank barges in the tow follow the proper safety
precautions for tank vessels, and that no activity takes place in the
vicinity of the barges that could create a hazard.
    (2) A towing vessel engaged in transporting such unmanned barges
shall not leave them unattended. When a barge is moored, but not gas
free, it shall be under the care of a watchman who may be a member of
the complement of the towing vessel, or a terminal employee, or other
person. This person shall be responsible for the security of the barge
and for keeping unauthorized persons off the barge. Such person shall be
provided with, read, and have in his possession for ready reference the
information cards required by paragraph (e) of this section.
    (g) All cargo hatches shall be closed, dogged down, or otherwise
tightly secured.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989; CGD 79-116, 60 FR 17158, Apr. 4, 1995]



Sec. 151.45-3  Manning.

    Except as provided for in this section, barges need not be manned
unless in the judgment of the Officer in Charge, Marine Inspection, such
manning is necessary for the protection of life and property and for
safe operation of the vessel. Vessels requiring manning for safe
operation shall be subject to additional requirements as determined by
the Commandant. Towing vessels, while towing barges which are not
required to be manned, shall be provided with and have on board the
information card required by Sec. 151.45-2(e)(3). This card shall be in
the possession of the master or person in charge.



Sec. 151.45-4  Cargo-handling.

    (a) On a United States tank barge subject to inspection--
    (1) The owner and operator of the vessel, and his or her agent, and
each of them, shall ensure that no transfer of liquid cargo in bulk or
cleaning of a cargo tank takes place unless under the supervision of a
qualified person designated as the person in charge of the transfer or
the cleaning under Subpart C of 33 CFR part 155.
    (2) The person in charge of the transfer shall ensure that enough
qualified personnel are on duty to safely transfer liquid cargo in bulk
or to safely clean cargo tanks.
    (b) Closing of sea and ballast valves. All sea and ballast valves
are to be

[[Page 169]]

properly aligned and lashed, or sealed in their correct position prior
to beginning cargo transfer operations. Under no circumstances shall
such valves be secured by locks.
    (c) Connecting for cargo transfer. (1) Movement of the vessel shall
be considered when making the cargo connections to insure safe cargo
transfer. Suitable material shall be used in joints and in couplings
when making connections to insure that they are tight. Under no
circumstances shall less than three bolts be used in a bolted flanged
coupling.
    (2) When cargo connections are supported by the vessel's tackle, the
person in charge of the transfer operations shall inspect the vessel to
insure that sufficient tackles are used.
    (3) Pans or buckets shall be placed under cargo hose connections.
    (4) Cargo transfer operations for any cargo requiring a PV or safety
relief venting device in Table 151.05 shall be performed with cargo
hatch covers closed.
    (d) Inspection prior to transfer of cargo. Prior to the transfer of
cargo, the person in charge of the transfer operation shall inspect the
barge and other cargo equipment to assure himself that the following
conditions exist:
    (1) The Certificate of Inspection is endorsed for the products to be
loaded. Loading restrictions, if any, should be noted.
    (2) Warning signs are displayed as required.
    (3) Cargo information cards for the product are aboard.
    (4) No repair work in way of cargo space is being carried out.
    (5) Cargo connections and hatch covers conform with the provisions
of paragraph (c) of this section and cargo valves are properly set.
    (6) All connections for cargo transfer have been made to the
vessel's fixed pipeline system.
    (7) In transferring flammable or combustible cargoes, there are no
fires or open flames present on the deck, or in any compartment which is
located on, facing, open or adjacent to the part of the deck on which
cargo connections have been made.
    (8) The shore terminal or other tank vessel concerned has reported
itself in readiness for transfer of cargo.
    (9) All sea valves are properly set and those connected to the cargo
piping are closed.
    (10) When transferring flammable or combustible cargoes that a
determination was made as to whether or not boiler and/or galley fires
can be maintained with reasonable safety.
    (e) Duties of the person in charge during transfer operations. The
person in charge of the transfer operations shall control the operations
as follows:
    (1) Supervise the operation of the cargo system valves.
    (2) Start transfer of cargo slowly.
    (3) Observe cargo connections and hose for leakage.
    (4) Observe operating pressure on cargo systems.
    (5) Comply with loading limitations placed on the vessel by the
Certificate of Inspection, if, any, for the purpose of not overloading
individual tanks or the vessel.
    (6) Observe the loading rate for the purpose of avoiding overflow of
the tanks.
    (f) Cargo transfer operations shall not be started or, if started,
shall be discontinued under the following conditions:
    (1) During severe electrical storms.
    (2) If a fire occurs on the barge, the wharf or in the immediate
vicinity.
    (3) If potentially dangerous leakage occurs.
    (g) No vessel shall come alongside or remain alongside a barge in
way of its cargo tanks while it is transferring cargo unless the
conditions then prevailing are mutually acceptable to the persons in
charge of cargo handling.
    (h) Auxiliary steam, air, fuel, or electric current. When
discharging cargo from one or more barges, the towing vessel may furnish
steam, air, fuel, or electric current for pumps on barges or dock, but
in no case shall the cargo pass through or over the towing vessel.
    (i) Termination of transfer operations. When transfer operations are
completed, the valves on cargo connections on the vessel shall be
closed. The cargo connections shall be drained of cargo.
    (j) Transfer of other cargo or stores on a barge. (1) Packaged
goods, freight,

[[Page 170]]

and ship's stores shall not be loaded or discharged during the loading
of flammable cargoes except by permission of the person in charge of the
transfer operation. Explosives shall not be loaded or carried on any
barge containing products regulated by this subchapter.
    (2) Where package and general cargo is carried directly over bulk
cargo tanks, it shall be properly dunnaged to prevent chafing of metal
parts and securely lashed or stowed.
    (k) Transportation of other cargo or stores on barges. Barges may be
permitted to transport deck cargoes directly over bulk cargo spaces when
the nature of such deck cargoes and the methods of loading and unloading
same do not create an undue hazard. Such barges shall have their decks
properly dunnaged to prevent chafing between the steel parts of the
vessel and the deck cargo.
    (l) Deck construction must be adequate to support the intended load.
Provisions for carrying deck cargo shall be endorsed on the Certificate
of Inspection by the Officer in Charge, Marine Inspection.
    (m) Emergencies. In case of emergencies, nothing in the regulations
in this subchapter shall be construed as preventing the person in charge
of transfer operations from pursuing the most effective action in his
judgment for rectifying the conditions causing the emergency.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970; 35 FR 6431, Apr. 22, 1970, as
amended by CGD 75-59, 45 FR 70273, Oct. 23, 1980; CGD 81-059, 54 FR 151,
Jan. 4, 1989; CGD 79-116, 60 FR 17158, Apr. 4, 1995]



Sec. 151.45-5  Open hopper barges.

    (a) All open hopper barges not constructed or modified in
conformance with the provisions of Subpart 151.10 of this part when
carrying in bulk any cargoes regulated by this subchapter shall meet the
provisions of this section. However, the provisions of this section are
not applicable to such barges when empty (not necessarily cleaned or
gas-freed).
    (1) Except as otherwise provided in this section, no such open
hopper type barge shall be placed as lead barge in any tow. These barges
shall be placed in protected positions within the tow so that the danger
from diving or swamping will be minimized. Where, due to operating
conditions, compliance with this paragraph is impossible, the provisions
of paragraph (a)(3) of this section apply. The person in charge of the
towing vessel shall be responsible for compliance with this paragraph.
    (2) No such open hopper type barge shall be moved from a loading
facility unless all void spaces and bilges are substantially free of
water. Periodic inspections and necessary pumping shall be carried out
to insure the maintenance of such water-free conditions, in order to
minimize the free surface effect in both the longitudinal and transverse
directions. Except when considered necessary for inspection or pumping,
all hatch covers and other hull closure devices for void spaces and hull
compartments shall be closed and secured at all times. In the case of
unmanned barges, the person in charge of the towing vessel shall be
deemed to be in charge of the barge, and all requirements to be carried
out on the barge shall be carried out by or under the direction of this
person.
    (3) When an open hopper type barge is in an exposed position, such
that protection from swamping provided by adjoining barges cannot be
obtained from the location within the tow, it shall be the
responsibility of the person in charge of the towing vessel to control
speed so as to insure protection against diving and swamping of the
barge, having regard to its design and freeboard, and other operating
conditions.
    (b) To show that special operating requirements apply to a specific
open hopper type barge, additional placards or signs shall be displayed
in at least four different locations on the barge when the cargoes
subject to this part are carried in any form in the cargo tanks. The
placards or signs shall be posted on the barge approximately amidships
on each side and near the centerline fore and aft facing outboard.
Racks, or other suitable means for mounting such placards or signs,
shall be so arranged as to provide clear visibility and shall be
protected from becoming readily damaged or obscured. The placards or
signs shall be at least

[[Page 171]]

equal in dimensions to the DOT standard tank car ``Dangerous'' placard
(10\3/4\ inches square or larger) and shall display a circle (10 inches
in diameter or larger) with alternating quadrants of white and red, and
so mounted that the red quadrants are centered on the vertical axis. The
shipper and/or owner of the barge shall be responsible for the
installation of the required placards or signs, including maintenance of
them while such barge is in temporary storage with cargo aboard. The
person in charge of the towing vessel shall be responsible for the
continued maintenance of the placards or signs while such barge is in
transit.



Sec. 151.45-6  Maximum amount of cargo.

    (a) Tanks carrying liquids or liquefied gases at ambient
temperatures regulated by this subchapter shall be limited in the amount
of cargo loaded to that which will avoid the tank being liquid full at
105 [deg]F if insulated, or 115 [deg]F if uninsulated. If specific
filling densities are designated in Subpart 151.50 of this part, they
shall take precedence over that noted above.
    (b) Refrigerated and semirefrigerated tanks shall be filled so that
there is an outage of at least 2 percent of the volume of the tank at
the temperature corresponding to the vapor pressure of the cargo at the
safety relief valve setting. A reduction in the required outage may be
permitted by the Commandant when warranted by special design
considerations. Normally, then, the maximum volume to which a tank may
be loaded is:

VL=0.98drV/dL

where:

VL=Maximum volume to which tank may be loaded.
V =Volume of tank.
dr=Density of cargo at the temperature required for a cargo
          vapor pressure equal to the relief valve setting.
dL=Density of cargo at the loading temperature and pressure.



Sec. 151.45-7  Shipping papers.

    Each barge carrying dangerous cargo shall have on board a bill of
lading, manifest, or shipping document giving the name of shipper,
location of the loading point, and the kind, grade, and approximate
quantity by compartment of each cargo in the barge. Such manifest or
bills of lading may be made out by the shipper, master of the towing
vessel, owner, or agent of the owner. However, in the case of unmanned
barges the master of the towing vessel shall either have a copy of the
shipping papers for each barge in his tow or he shall make an entry in
the towing vessel's log book giving the name of the shipper, location
where the barge was loaded, and the kind, grade, and quantity of cargo
by compartment in the barge. The barge shall not be delayed in order to
secure the exact quantities of cargo.



Sec. 151.45-8  Illness, alcohol, drugs.

    A person who is under the influence of liquor or other stimulants,
or is so ill as to render him unfit to perform service shall not be
permitted to perform any duties on the barge.



Sec. 151.45-9  Signals.

    While fast to a dock, a vessel during transfer of bulk cargo shall
display a red flag by day or a red light by night, which signal shall be
so placed that it will be visible on all sides. When at anchor, a vessel
during transfer of bulk cargo shall display a red flag by day, placed so
that it will be visible on all sides. This flag may be metallic.



                   Subpart 151.50_Special Requirements

    Editorial Note: Nomenclature changes to subpart 151.50 of part 151
appear by CGD-95-072, 60 FR 50465, Sept. 29, 1995, and CGD-96-041, 61 FR
50732, Sept. 27, 1996.



Sec. 151.50-1  General.

    Special requirements found in this subpart pertain to specific
cargoes and to similar groups of cargoes. These requirements are in
addition to and take precedence over any other requirements found in
these regulations.



Sec. 151.50-5  Cargoes having toxic properties.

    When table 151.05 refers to this section, the following apply:
    (a) [Reserved]
    (b) Independent tanks shall be designed and tested for a head of at
least 8 feet above the top of the tank using

[[Page 172]]

the specific gravity of the product to be carried. In addition, tank
design calculations shall demonstrate that the tank can withstand,
without rupture, a single loading to the highest level to which the
product may rise, if that exceeds 8 feet. In general, plate less than
five-sixteenths inch in thickness shall not be used in the fabrication
of independent tanks unless otherwise approved.
    (c)(1) Cargo tanks transporting liquids having a Reid vapor pressure
exceeding 14 pounds per square inch absolute or vented at a gauge
pressure exceeding 4 pounds per square inch, or where air or water
pressure is used to discharge the cargo, shall be fabricated as arc-
welded unfired pressure vessels.
    (2) Unfired pressure vessel cargo tanks shall be designed for a
pressure not less than the vapor pressure, in pounds per square inch
gauge, of the lading at 115 [deg]F, or the maximum air or water pressure
used to discharge the cargo, whichever is greater, but in no case shall
the design pressure of such tanks be less than 30 pounds per square inch
gauge.
    (d) Piping. (1) The pumps and piping used for cargo transfer shall
be independent of all other piping.
    (2) Where multiple cargoes are carried, and the cargo piping
conveying cargoes covered under this section are led through cargo tanks
containing other products, the piping shall be encased in a tunnel.
    (3) Where cargo lines handling other products, or bilge and ballast
piping are led through tanks containing cargoes covered by this section,
the piping shall be enclosed in a tunnel.
    (e) Gravity type cargo tanks shall be fitted with an approved
pressure-vacuum relief valve of not less than 2\1/2\-inch size, which
shall be set at a pressure of not less than 3 pounds per square inch
gauge, but not in excess of the design pressure of the tank.
    (f) The discharge fittings from each safety relief or pressure
vacuum relief valve shall be directed in such a manner as to not impinge
on another tank, piping or any other equipment which would increase the
fire hazard should burning products be discharged from the safety or
pressure vacuum relief valve as a result of a fire or other casualty. In
addition, the discharges shall be directed away from areas where it is
likely that persons might be working and as remote as practicable from
ventilation inlets and ignition sources. A common discharge header may
be employed if desired. The area near the discharge fittings shall be
clearly marked as a hazardous area.
    (g) A means shall be provided for either the reclamation or safe
venting of vapors during the loading and unloading operations. For this
purpose the safety relief or pressure vacuum relief valve shall be
provided with a valved bypass to a vapor return line shore connection
which shall be used whenever vapor return shore facilities are
available. In the event vapors must be vented to the atmosphere, a vent
riser shall extend at least 12 feet above the highest level accessible
to personnel. The vent riser may be collapsible for ease of stowage when
not in use. Vapor return lines or vent risers for tanks carrying the
same class product may be connected to a common header system if
desired. Tanks carrying cargoes covered by this section shall be vented
independent of tanks carrying other products.
    (h) The pump room ventilation outlet duct exhausts shall terminate
at a distance of at least 6 feet above the enclosed space or pump room
and at least 6 feet from any entrance to the interior part of the
vessel. The discharge end of the exhaust ducts shall be located so as to
preclude the possibility of recirculating contaminated air through the
pump room, or other spaces where personnel may be present.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.50-6  Motor fuel antiknock compounds.

    When transporting motor fuel antiknock compounds containing
tetraethyl lead and tetramethyl lead the requirements listed in this
section shall be observed.
    (a) Tanks used for these cargoes shall not be used for the
transportation of any other cargo except those commodities to be used in
the manufacture of tetraethyl lead and tetramethyl lead.

[[Page 173]]

    (b) Pump rooms shall be equipped with forced ventilation with
complete air change every 2 minutes. Air analysis shall be run for lead
content to determine if the atmosphere is satisfactory prior to
personnel entering the pump room.
    (c) Entry into cargo tanks used for the transportation of these
cargoes is not permitted.
    (d) No internal tank inspection is required. If it is desired to
internally inspect tanks used for these cargoes, the Commandant must be
notified in advance before such inspection is made.
    (e) The provisions of Sec. 151.50-5 shall also be met as a
requirement for shipping antiknock compounds containing tetraethyl lead
and tetramethyl lead.



Sec. 151.50-10  Alkylene oxides.

    (a) For the purpose of this part, alkylene oxides are considered to
be ethylene oxide and propylene oxide.
    (b) Alkylene oxides transported under the provisions of this part
shall be acetylene free.
    (c)(1) No other product may be transported in tanks certified for an
alkylene oxide except that the Commandant may approve subsequent
transportation of other products and return to alkylene oxide service if
tanks, piping and auxiliary equipment are adequately cleaned to the
satisfaction of the Marine Inspector.
    (2) Unless authorized by the Commandant, no other kind of cargo
except methane, ethane, propane, butane and pentane shall be on board a
tank vessel certificated for the carriage of an alkylene oxide at the
same time an alkylene oxide in either the liquid or vapor state is
present in any cargo tank. Alkylene oxide tanks shall not be installed
in tanks intended for any other cargo.
    (d) All valves, flanges, fittings, and accessory equipment shall be
of a type suitable for use with the alkylene oxides and shall be made of
steel or stainless steel, or other materials acceptable to the
Commandant. Impurities of copper, magnesium and other acetylide-forming
metals shall be kept to a minimum. The chemical composition of all
material used shall be submitted to the Commandant for approval prior to
fabrication. Disks or disk faces, seats and other wearing parts of
valves shall be made of stainless steel containing not less than 11
percent chromium. Mercury, silver, aluminum, magnesium, copper, and
their alloys shall not be used for any valves, gauges, thermometers, or
any similar devices. Gaskets shall be constructed of spirally wound
stainless steel with ``Teflon'' or other suitable material. All packing
and gaskets shall be constructed of materials which do not react
spontaneously with or lower the autoignition temperature of the alkylene
oxides.
    (e) The pressure rating of valves, fittings, and accessories shall
be not less than the maximum pressure for which the cargo tank is
designed, or the shutoff head of the cargo pump, whichever is greater,
but in no case less than 150 pounds per square inch. Welded fittings
manufactured in accordance with A.N.S.I. Standards shall be used
wherever possible, and the number of pipe joints shall be held to a
minimum. Threaded joints in the cargo liquid and vapor lines are
prohibited.
    (f) The thermometer shall terminate in the liquid space and shall be
attached to the shell by welding with the end of the fitting being
provided with a gastight screwed plug or bolted cover.
    (g) Automatic float continuous reading tape gauge, and similar
types, shall be fitted with a shutoff valve located as close to the tank
as practicable, which shall be designed to close automatically in the
event of fracture of the external gauge piping. An auxiliary gauging
device shall always be used in conjunction with an automatic gauging
device.
    (h) Filling and discharge piping shall extend to within 4 inches of
the bottom of the tank or sump pit if one is provided.
    (i) Venting. (1) The discharge fittings from each safety relief or
pressure vacuum relief valve shall be directed in such a manner as to
not impinge on another tank, piping or any other equipment which would
increase the fire hazard should burning products be discharged from the
safety or pressure vacuum relief valve as a result of a fire or other
casualty. In addition, the discharges shall be directed away from areas
where it is likely that persons

[[Page 174]]

might be working and as remote as practicable from ventilation inlets
and ignition sources. A common discharge header may be employed if
desired. The area near the discharge fittings shall be clearly marked as
a hazardous area.
    (2) A means shall be provided for either the reclamation or safe
venting of vapors during the loading and unloading operations. For this
purpose, the safety relief or pressure vacuum relief valve shall be
provided with a valved bypass to a vapor return line shore connection
which shall be used whenever vapor return shore facilities are
available. In the event vapors must be vented to the atmosphere, a vent
riser shall be connected to the vapor return line and extend at least 12
feet above the highest level accessible to personnel. The vent riser may
be collapsible for ease of stowage when not in use. The vent riser shall
not be connected to a safety relief or pressure vacuum valve. Vapor
return lines or vent risers for tanks carrying the same class product
may be connected to a common header system if desired. Tanks carrying
alkylene oxides shall be vented independent of tanks carrying other
products.
    (3) The outlet of each vent riser shall be fitted with acceptable
corrosion-resistant flame screen of suitable material or a flame
arrester suitable for use with alkylene oxide.
    (j) Ventilation. (1) All enclosed spaces within the hull shall be
vented or ventilated in accordance with the provisions of this
subchapter except as otherwise provided for in this subpart.
    (2) The enclosed spaces in which the cargo tanks are located shall
be inerted by injection of a suitable inert gas or shall be well
ventilated.
    (3) The enclosed spaces in which the cargo tanks are located, if an
inerting system is not installed, shall be fitted with forced
ventilation of such capacity to provide a complete change of air every
three minutes and arranged in such a manner that any vapors lost into
the space will be removed. The ventilation system shall be in operation
at all times cargo is being loaded or discharged. No electrical
equipment shall be fitted within the spaces or within ten feet of the
ventilation exhaust from these spaces.
    (4) All ventilation machinery shall be of nonsparking construction
and shall not provide a source of vapor ignition.
    (5) Each vent shall be fitted with a flame screen of corrosion
resistant wire which is suitable for use with the alkylene oxide.
    (k)(1) Flexible metal hose fabricated of stainless steel or other
acceptable material, resistant to the action of the alkylene oxide,
shall be fitted to the liquid and vapor lines during cargo transfer.
    (2) The hose shall be marked with the maximum pressure guaranteed by
the manufacturer, and with his certification with the words ``Certified
for ---------- Oxide.''
    (3) Cargo hose intended for alkylene oxide service shall not be used
for any other products except those which are compatible with the
alkylene oxide.
    (l) Vessel shall be electrically bonded to the shore piping prior to
connecting the cargo hose. This electrical bonding shall be maintained
until after the cargo hose has been disconnected and any spillage has
been removed.
    (m) Cargo shall be discharged by pumping or by displacement with
nitrogen or other acceptable inert gas. In no case shall air be allowed
to enter the system. During loading and unloading operations, the vapor
shall not be discharged to the atmosphere. Provisions shall be made to
return all displaced vapor to the loading facility. The loading rate and
the pressure applied to the tank to discharge the cargo shall be so
limited to prevent opening the safety relief valves.
    (n) During cargo transfer, a water hose with pressure to the nozzle,
when atmospheric temperatures permit, shall be connected to a water
supply for immediate use during filling and discharge operations and any
spillage of alkylene oxide shall be immediately washed away. This
requirement can be met by facilities provided from shore.
    (o) Prior to disconnecting shore lines, the pressure in the liquid
and vapor lines shall be relieved through suitable valves installed at
the loading header. The liquid and vapor discharged from these lines
shall not be discharged to atmosphere.
    (p) The safety relief valves shall be tested by liquid, gas, or
vapor pressure

[[Page 175]]

at least once every 2 years to determine the accuracy of adjustment and,
if necessary, shall be reset. Alkylene oxides shall not be used as the
testing medium.
    (q) The special requirements for ethylene oxide contained in Sec.
151.50-12 and for propylene oxide contained in Sec. 151.50-13 shall
also be observed.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 85-061, 54 FR
50966, Dec. 11, 1989]



Sec. 151.50-12  Ethylene oxide.

    (a)(1) Ethylene oxide shall be carried in fixed, independent,
pressure vessel type cargo tanks, designed, constructed, arranged and,
if necessary, equipped with machinery to maintain the cargo temperature
below 90 [deg]F except as otherwise provided for in paragraph (a)(3) of
this section.
    (2) Ethylene oxide shall be loaded at a temperature below 70 [deg]F.
    (3) When ethylene oxide is to be transported at or near atmospheric
pressure, the Commandant may permit the use of alternate methods of
storage which are consistent with the minimum requirements of this
subpart.
    (b)(1) All cargo tanks shall be constructed of a carbon steel or
stainless steel acceptable to the Commandant. Impurities of copper,
magnesium and other acetylide-forming metals shall be kept to a minimum.
The chemical composition of all steel used shall be submitted to the
Commandant for approval prior to fabrication. Aluminum, copper and other
acetylide-forming metals, such as silver, mercury, magnesium, and their
alloys shall not be used as materials of construction for tanks or
equipment used in handling ethylene oxide.
    (2) Cargo tanks shall meet the requirements of Class I pressure
vessels.
    (3) Cargo tanks shall be designed for the maximum pressure of vapor
or gas used in discharging the cargo but in no case shall the design
pressure of such tanks be less than 75 pounds per square inch gauge. The
tank shell and heads shall not be less than \5/16\-inch thick.
    (c)(1) Cargo tanks shall be located below deck in holds or enclosed
spaces with the domes or trunks extended above the weather deck and
terminating in the open. Provisions shall be made to maintain the
watertightness of the deck by means of watertight seals around such
domes or trunks. The holds or enclosed spaces, in which the ethylene
oxide tanks are located, shall not be used for any other purpose.
However, in open hopper type barges of a suitable design approved for
such service, the weatherdeck may not be required to be watertight.
    (2) All cargo tanks shall be installed with the manhole openings and
all tank connections located above the weatherdeck in the open.
    (3) Tanks shall be electrically bonded to the hull.
    (4) No welding of any kind shall be done on cargo tanks or
supporting structure unless authorized by the Commandant.
    (d) All cargo tanks, piping, valves, fittings, and similar equipment
which may contain ethylene oxide in either the liquid or vapor phase,
including the vent risers, shall be insulated. Flanges need not be
covered, but if covered, a small opening shall be left at the bottom of
the flange cover to detect leaks. Insulation shall be of an approved
incombustible material suitable for use with ethylene oxide, which does
not significantly lower the autoignition temperature and which does not
react spontaneously with ethylene oxide. The insulation shall be of such
thickness as to provide a thermal conductance of not more than 0.075
B.t.u. per square foot per degree Fahrenheit differential in temperature
per hour.
    (e)(1) When cooling systems are installed to maintain the
temperature of the liquid below 90 [deg]F, at least two complete cooling
plants, automatically regulated by temperature variations within the
tanks shall be provided; each to be complete with the necessary
auxiliaries for proper operation. The control system shall also be
capable of being manually operated. An alarm shall be provided to
indicate malfunctioning of the temperature controls. The capacity of
each cooling system shall be sufficient to maintain the temperature of
the liquid cargo at or below the design temperature of the system.
    (2) An alternate arrangement may consist of three cooling plants,
any two of which shall be sufficient to maintain the temperature of the
liquid cargo at

[[Page 176]]

or below the design temperature of the system.
    (3) Cooling systems requiring compression of ethylene oxide are
prohibited.
    (f) In addition to the shutoff valve required, all tank connections
larger than one-half inch inside pipe size, except safety relief valves
and liquid level gauging devices, shall be fitted with either internal
back pressure check valves or internal excess flow valves in conjunction
with a quick closing stop valve operable from at least two remote
locations. The quick closing stop valve shall be of the ``fail safe''
type acceptable to the Commandant and shall be equipped with a fusible
plug designed to melt between 208 [deg]F and 220 [deg]F, which will
cause the quick closing valve to close automatically in case of fire.
The quick closing valve shall be located as close to the tank as
possible.
    (g) Piping systems intended for ethylene oxide service shall not be
used for any other product and shall be completely separate from all
other systems. The piping system shall be designed so that no cross
connections may be made either through accident or design.
    (h) Each safety relief valve shall be set to start to discharge at
not less than 75 pounds per square inch gauge, nor more than the design
pressure of the tank.
    (i) The filling density shall not exceed 83 percent.
    (j)(1) The cargo shall be shipped under a suitable protective
inerting gas system, such as nitrogen. When nitrogen gas is used, the
gas inerting system shall be so designed that the vapor space above the
liquid cargo will be filled and maintained with a gas mixture of not
less than 45 percent nitrogen. Other gases proposed for inerting use may
be given consideration by the Commandant. Original charging only of
protective inerting gas at the loading facility is not considered
adequate. A sufficient amount of spare inerting gas as approved by the
Commandant shall be provided on the vessel in order to maintain the
proper concentration of the gas in the event of normal leakage or other
losses.
    (2) Any inerting gas selected should be at least 98 percent pure and
free of reactive materials, such as ammonia, hydrogen sulfide, sulfur
compounds, and acetylene.
    (k) Prior to loading, a sample from the cargo tank will be taken to
insure that the pad gas will meet the requirements of paragraph (j) of
this section and that the oxygen content of the vapor space will be not
more than 2 percent maximum. If necessary, a sample will be taken after
loading to insure the vapor space meets this requirement.
    (l) The cargo piping shall be inspected and tested at least once in
each 2 calendar years.
    (m) In those cases where the cargo transfer hose used is not part of
the barge's equipment, the person in charge of the transfer operation
shall determine that the provisions of Sec. 151.50-10(k) have been met
before using this hose. A certificate of test, supplied by the transfer
facility, will be considered as adequate for this determination.
    (n) The provisions of Sec. 151.50-10 shall be complied with as a
requirement for shipping ethylene oxide.
    (o) A hydrostatic test of 1\1/2\ times the design pressure shall be
made on the cargo tanks at least once in each 4 years at the time the
internal examination is made and at such other times as considered
necessary by the Officer in Charge, Marine Inspection.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 85-061, 54 FR
50966, Dec. 11, 1989]



Sec. 151.50-13  Propylene oxide.

    (a)(1) Pressure vessel cargo tanks shall meet the requirements of
Class II pressure vessels.
    (2) Cargo tanks shall be designed for the maximum pressure expected
to be encountered during loading, storing and discharging the cargo but
in no case shall the design pressure of pressure vessel tanks be less
than thirty (30) pounds per square inch gauge. The tank shell and heads
shall not be less than \5/16\-inch thick.
    (b) When propylene oxide is carried on board a vessel, piping
systems in propylene oxide service shall not be used for any other
product and shall be

[[Page 177]]

completely separate from all other systems. The piping system shall be
designed so that no cross connection may be made through inadvertence.
    (c) Each safety relief valve shall be set to start to discharge at
not less than 30 pounds per square inch gauge, nor more than the design
pressure of the tank.
    (d) Filling density shall not exceed 80 percent.
    (e)(1) The cargo shall be shipped under a suitable protective
padding, such as nitrogen gas. Other gases proposed for use as padding
may be given consideration by the Commandant. Original charging only of
protective gas padding at the loading facility is not considered
adequate. A sufficient amount of spare padding gas as approved by the
Commandant shall be provided on the vessel in order to maintain the
proper concentration of the gas in the event of normal leakage or other
losses.
    (2) Any padding gas selected should be at least 98 percent pure and
free of reactive materials.
    (f) Prior to loading, a sample from the cargo tank will be taken to
insure that the pad gas will meet the requirements of paragraph (e) of
this section and that the oxygen content of the vapor space will be not
more than 2 percent maximum. If necessary, a sample will be taken after
loading to insure the vapor space meets this requirement.
    (g) The cargo piping shall be subjected to a hydrostatic test of
1\1/2\ times the maximum pressure to which they may be subjected in
service.
    (h) The Commandant may permit the transportation of propylene oxide
in other than pressure vessel type tanks if it is shown to his
satisfaction that a degree of safety is obtained consistent with the
minimum requirements of this subpart.
    (i) The provisions of Sec. 151.50-10 shall be complied with as a
requirement for shipping propylene oxide.



Sec. 151.50-20  Inorganic acids.

    (a)(1) Gravity type cargo tanks shall be designed and tested to meet
the rules of the American Bureau of Shipping for a head of water at
least 8 feet above the tank top or the highest level the lading may
rise, whichever is the greater. The plate thickness of any part of the
tank shall not be less than three-eighths inch.
    (2) Gravity tank vents. (i) The outlet end of the gravity tank vent
shall terminate above the weatherdeck, clear of all obstructions and
away from any source of ignition.
    (ii) The gravity tank vent shall terminate in a gooseneck bend and
shall be fitted with a single flame screen or two fitted flame screens
as described in Sec. 151.03-25. No shutoff valve or frangible disk
shall be fitted in the vent lines.
    (b)(1) Pressure vessel type cargo tanks shall be independent of the
vessel's structure and shall be designed for the maximum pressure to
which they may be subjected when compressed air is used to discharge the
cargo, but in no case shall the design pressure be less than that
indicated as follows:

Fluorosilicic Acid--50 pounds per square inch gauge.
Hydrochloric Acid--50 pounds per square inch gauge.
Hydrofluorosilicic Acid, see Fluorosilicic Acid.
Phosphoric Acid--30 pounds per square inch gauge.
Sulfuric Acid--50 pounds per square inch gauge.

    (2) Pressure vessel type cargo tanks shall be of welded construction
meeting the requirements for Class II or Class III given in Part 54 of
this chapter.
    (3) When compressed air is used to discharge the cargo, the tank
shall be fitted with a vent led to the atmosphere in which a rupture
disk shall be installed. The rupture disk shall be designed to burst at
a pressure not exceeding the design pressure of the tank. An auxiliary
vent to relieve the pressure or vacuum in the tank during the cargo
transfer operation may be led from the vent line between the tank and
the rupture disk. A shutoff valve may be fitted in the auxiliary vent.
    (c) Openings in tanks are prohibited below deck, except for access
openings used for inspection and maintenance of tanks, or unless
otherwise specifically approved by the Commandant. Openings shall be
fitted with bolted cover plates and acid-resistant gaskets.

[[Page 178]]

    (d) Where special arrangements are approved by the Commandant to
permit a pump suction to be led from the bottom of the tank, the filling
and discharge lines shall be fitted with shutoff valves located above
the weatherdeck or operable therefrom.
    (e) The outage shall not be less than 1 percent.
    (f) All enclosed compartments containing cargo tanks and all
machinery spaces containing cargo pumps shall be fitted with effective
means of ventilation.
    (g) A separator shall be fitted in compressed air lines to the tank
when air pressure is used to discharge the cargo.
    (h) Only installed electric or portable battery lights shall be used
during the cargo transfer operations. Smoking is prohibited and the
person in charge of cargo transfer shall post No Smoking signs during
cargo transfer operations.
    (i) Tanks approved for the transportation of acid cargoes subject to
this section shall not be used for the transportation of any other
commodity, except upon authorization by the Commandant (CG-ENG).
    (j) Each cargo tank shall be subjected to an internal examination at
least once in every 4 years. If cargo tank lining is required and the
lining of the cargo tank has deteriorated in service or is not in place,
the Marine Inspector may require the tank to be tested by such
nondestructive means as he may consider necessary to determine its
condition.
    (k) The special requirements for fluorosilicic acid in Sec. 151.50-
77, for hydrochloric acid in Sec. 151.50-22, for hydrofluorosilicic
acid, see fluorosilicic acid, for phosphoric acid in Sec. 151.50-23,
and for sulfuric acid in Sec. 151.50-21 also apply to the carriage of
those acids.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by GGD 80-001, 46 FR
63279, Dec. 31, 1981; CGD 82-063b, 48 FR 4781, Feb. 3, 1983; CGD 88-100,
54 FR 40040, Sept. 29, 1989; CGD 92-100, 59 FR 17028, Apr. 11, 1994]



Sec. 151.50-21  Sulfuric acid.

    (a) How sulfuric acid may be carried. (1) Sulfuric acid of
concentration of 77.5 percent (1.7019 specific gravity) (59.8[deg]
Baum[eacute]) or greater concentrations with or without an inhibitor,
provided the corrosive effect on steel measured at 100 [deg]F is not
greater than that of 66[deg] Baum[eacute] commercial sulfuric acid, may
be transported in unlined gravity type cargo tanks or unlined pressure
vessel type cargo tanks.
    (2) Sulfuric acid of concentration of 65.25 percent (1.559 specific
gravity) (52[deg] Baum[eacute]) or greater concentrations, provided the
corrosive effect on steel measured at 100 [deg]F is not greater than
that of 52[deg] Baum[eacute] commercial sulfuric acid, may be
transported in unlined pressure vessel type cargo tanks independent of
the vessel's structure.
    (3) Sulfuric acid of concentration not to exceed 65.25 percent
(1.559 specific gravity) (52[deg] Baum[eacute]) may be transported in
gravity type cargo tanks or pressure-vessel type cargo tanks which are
lined with lead or other equally suitable acid-resistant material
acceptable to the Commandant.
    (4) Sulfuric acid of concentration not to exceed 51 percent (1.408
specific gravity) (42[deg] Baum[eacute]) and spent sulfuric acid
resulting from the use of sulfuric acid in industrial processes may be
transported in gravity type cargo tanks which are lined with rubber or
other equally suitable acid-resistant material acceptable to the
Commandant. See Sec. 151.15-3(f)(2).
    (5) Spent or sludge sulfuric acid resulting from the use of sulfuric
acid in industrial processes may be transported in unlined gravity type
cargo tanks or unlined pressure vessel type cargo tanks, provided the
corrosive effect on steel is not greater than that of commercial
sulfuric acid as prescribed in paragraph (a)(1) of this section.
    (b) Heating coils will be the only acceptable means of liquefying
frozen or congealed sulfuric acid.
    (c) During cargo transfer, a water hose shall be connected to a
water supply ready for immediate use and any leakage or spillage of acid
shall be immediately washed down. This requirement can be met by
facilities provided from shore.
    (d) The requirements of Sec. 151.50-20 are also applicable to the
shipment of sulfuric acid.



Sec. 151.50-22  Hydrochloric acid.

    (a) Hydrochloric acid shall be carried in gravity or pressure type
cargo tanks which are independent of the vessel's

[[Page 179]]

structure provided such tanks are lined with rubber or other equally
suitable material acceptable to the Commandant. See Sec. 151.15-
3(f)(2).
    (b) Notwithstanding the provisions of Sec. 151.50-20(b)(3),
compressed air may be used to discharge hydrochloric acid from gravity
type cargo tanks only if the tanks are of cylindrical shape with dished
heads, provided the air pressure does not exceed the design pressure of
the tank but in no case shall it exceed 10 pounds per square inch gauge.
Such tanks shall be fitted with pressure relief devices and need not be
vented to the atmosphere as required by Sec. 151.50-20(b)(3).
    (c) During cargo transfer, a water hose shall be connected to a
water supply and be ready for immediate use. Any leakage or spillage of
acid shall be immediately washed down. This requirement can be met by
facilities provided from shore.
    (d) Spent hydrochloric acid or hydrochloric acid adulterated by
other chemicals, inhibitors, oils, solvents, water, etc., shall not be
transported in bulk except upon authorization by the Commandant (CG-
ENG).
    (e) The requirements of Sec. 151.50-20 are also applicable to the
shipment of hydrochloric acid.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.50-23  Phosphoric acid.

    (a) The term phosphoric acid as used in this subpart shall include,
in addition to phosphoric acid, aqueous solutions of phosphoric acid,
and super phosphoric acid.
    (b) Phosphoric acid may be carried in either gravity or pressure
type cargo tanks. The tanks shall be rubber-lined, or lined or clad with
other suitable material acceptable to the Commandant, or shall be
fabricated of a phosphoric acid resistant stainless steel. See Sec.
151.15-3(f)(2).
    (c) The vessel's shell plating shall not be used as any part of the
boundaries of gravity type cargo tanks.
    (d) Cargo piping, including valves, fittings, and flanges where
exposed to the acid, shall be rubber-lined, or lined, coated or clad
with other corrosion-resistant material, or shall be fabricated of a
phosphoric acid resistant stainless steel. Vent piping, including
flanges and fittings, shall be similarly protected at least to the
height of the frangible disk if such is installed.
    (e) Phosphoric acid adulterated by other chemicals, inhibitors,
oils, solvents, etc., shall not be transported in bulk cargo tanks
except upon authorization by the Commandant (CG-ENG).
    (f) The requirements of Sec. 151.50-20 are also applicable to the
shipment of phosphoric acid.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 82-063b, 48 FR
4781, Feb. 3, 1983; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 151.50-30  Compressed gases.

    (a) All tank inlet and outlet connections, except safety relief
valves, liquid level gauging devices, and pressure gauges shall be
marked to designate whether they terminate in the vapor or liquid space.
Labels, when used, shall be of corrosion-resistant materials and may be
attached to valves.
    (b) Venting. (1) Except as provided in paragraph (b)(2) of this
section each safety relief valve installed on a cargo tank shall be
connected to a branch vent of a venting system which shall be
constructed so that the discharge of gas will be directed vertically
upward to a point at least 10 feet above the weatherdeck or the top of
any tank or house located above the weatherdeck.
    (2) Safety valves on cargo tanks in barges may be connected to
individual or common risers which shall extend to a reasonable height
above the deck. Where the escape of vapors from the venting system may
interfere with towing operations, the installation shall be acceptable
to the Commandant, and the arrangement shall be such as to minimize the
hazard of escaping vapors. Arrangements specially provided for venting
cargo tanks forming part of the hull on unmanned barges will be given
special consideration by the Commandant.
    (3) The capacity of branch vents or vent headers shall depend upon
the number of cargo tanks connected to such branch or header as provided
in Table 151.50-30(b)(3).

[[Page 180]]



     Table 151.50-30(b)(3)--Capacity of Branch Vents or Vent Headers

                                                                Percent
                                                                of total
                    Number of cargo tanks                        valve
                                                               discharge

1 or 2.......................................................        100
3............................................................         90
4............................................................         80
5............................................................         70
6 or more....................................................         60


    (4) Return bends and restrictive pipe fittings are prohibited. Vents
and headers shall be so installed as to minimize stresses on safety
relief valves and their mounting nozzles.
    (5) When vent discharge risers are installed, they shall be so
located as to protect against physical damage and be fitted with loose
raincaps.
    (6) When vent discharge risers are installed and their installation
in accordance with the provisions of this paragraph results in
restrictions in the operation of the barge due to navigation clearances,
the vents may be designed so as to be collapsible when passing under
such low clearance obstacles.
    (c) Repairs involving welding or burning. (1) Repairs involving
welding or burning shall not be undertaken on the cargo tanks or piping
while cargo in either the liquid or vapor state is present therein.
    (2) Repairs involving welding or burning on parts of the barge other
than cargo tanks or piping may be undertaken provided positive pressure
is maintained in the tanks or the tanks have been vented or washed
internally.
    (d) Respiratory equipment. (1) At least one approved self-contained
breathing apparatus shall be available in a readily accessible location
off the barge at all times during the cargo transfer operations. This
equipment shall not be considered to be part of the barge equipment, and
the barge shall not be required to carry this equipment en route.
    (2) The approved self-contained breathing apparatus, masks, and all
respiratory protective devices shall be of types suitable for starting
and operating at the temperatures encountered, and shall be maintained
in good operating condition.
    (3) Personnel involved in the cargo transfer operations shall be
adequately trained in the use of the respiratory equipment.
    (e) Filling densities and container design pressure. For compressed
gases transported at or near ambient temperatures, the maximum filling
densities and minimum design pressure of container as indicated in Table
151.50-30(e) shall apply. Deviations from the tabulated values shall be
submitted to the Commandant for approval. Where cargo is to be carried
at temperatures below ambient, the tank shall be designed in accordance
with Sec. 151.15-3(b)(3) and the maximum amount of cargo shall be in
accordance with Sec. 151.45-6(b).

                      Table 151.50-30(e)--Filling Densities and Container Design Pressures
----------------------------------------------------------------------------------------------------------------
                                                           Maximum permitted filling  Minimum design pressure of
                                                              density (percent by       tank (pounds per square
                                                          weight, see Sec. 151.03-          inch gauge)
                       Kind of gas                                    21)            ---------------------------
                                                         ----------------------------
                                                           Uninsulated    Insulated    Uninsulated    Insulated
                                                              tanks         tanks         tanks         tanks
----------------------------------------------------------------------------------------------------------------
Ammonia, anhydrous......................................            57            58           250           215
Chlorine................................................           125           125           300           300
Dichlorodifluoromethane.................................           123           125           147           127
Dimethylamine...........................................            61            62            46            36
Methyl chloride.........................................            85            87           131           112
Monochlorodi-fluoromethane..............................           110           113           243           211
Vinyl chloride..........................................            86            87            81            67
----------------------------------------------------------------------------------------------------------------

    (f) The shell and head thickness of liquefied compressed cargo tanks
shall not be less than five-sixteenths inch.
    (g) The special requirements for ammonia (anhydrous) in Sec.
151.50-32, for argon in Sec. 151.50-36, for chlorine in Sec. 151.50-
31, for nitrogen in Sec. 151.50-36,

[[Page 181]]

and for vinyl chloride in Sec. 151.50-34 also apply to the carriage of
those gases.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.50-31  Chlorine.

    (a) Chlorine barges. Subparts 98.03 and 98.20 of Part 98 of this
chapter have been revoked. However, chlorine barges that were certified
in accordance with the requirements of subpart 98.20 of part 98 of this
chapter and having hulls modified, if necessary, to comply with
Sec. Sec. 98.03-5(c) and 98.03-25(c) of this chapter, shall be
considered as complying with this part.
    (b) Design and construction of cargo tanks. (1) The cargo tanks
shall meet the requirements of Class I pressure vessels.
    (2) Tanks shall be designed for a pressure of not less than 300
pounds per square inch gauge. For the maximum allowable working pressure
of tanks in service, see paragraph (q) of this section.
    (3) Each tank shall be provided with one or more 24-inch inside
diameter manhole, fitted with a cover located above the maximum liquid
level and as close as possible to the top of the tank. There shall be no
other openings in the tank.
    (c) Tanks may be installed ``on deck'' or ``under deck'' with the
tank protruding above deck. If a portion of the tank extends above the
weatherdeck, provision shall be made to maintain the weathertightness on
the deck. All tanks shall be installed with the manhole opening located
above the weatherdeck. Hopper type barges operating on protected inland
waters may have tanks located in the hopper space.
    (d) All valves, flanges, fittings and accessory equipment shall be
of a type suitable for use with chlorine and shall be made of metal,
corrosion-resistant to chlorine in either the gas or liquid phase. Cast
or malleable iron shall not be used. Valves, flanges, and flanged joints
shall be 300 pounds A.N.S.I. standard minimum with tongue and groove or
raised face. Joints shall be fitted with sheet lead or other suitable
gasket material. Welded fittings shall be used wherever possible and the
number of pipe joints held to a minimum. Threaded joints in cargo lines
and vapor lines shall not be used in sizes above 1 inch internal
diameter. Welded ``hammerlock'' unions or other unions approved by the
Commandant may be used at terminal points of fixed barge piping.
    (e) Each tank shall be provided with liquid and vapor connections
fitted with manually operated shutoff valves and with safety relief
valves. All valves shall be bolted to the cover or covers specified in
paragraph (b)(3) of this section and shall be protected against
mechanical damage by a suitable protective metal housing. A drain
connection shall be provided from the protective housing.
    (f) All liquid and vapor connections, except safety relief valves,
shall be fitted with automatic excess flow valves, which shall be
located on the inside of the tank. Bypass openings are not permitted in
excess flow valves.
    (g) Chlorine barge cargo piping shall not be fitted with the
nonreturn valves specified by Sec. 151.20-20(b).
    (h) Liquid level gauging devices of any type are prohibited on
chlorine tanks.
    (i) A pressure gauge shall be attached to the vapor shutoff valve or
vapor line so as to indicate the pressure in the tank at all times
during loading and unloading.
    (j) Piping including connections between tank valves and fixed barge
piping, shall be of a thickness of not less than Schedule 80.
    (k) In multiple tank installations the tanks shall not be
interconnected by piping or manifolds which may contain liquid chlorine.
Manifolding of vapor lines of individual tanks into a common header for
connection to shore is permitted. More than one cargo tank may be filled
or discharged at a time, provided each tank is filled from or discharged
to shore tanks through separate lines.
    (l) Connections between fixed barge piping and shore piping shall be
fabricated from one of the following:
    (1) Schedule 80 seamless pipe, having flexible metallic joints.
    (2) Corrosion-resistant metallic pipe (equivalent to Schedule 80)
not subject to deterioration by chlorine, having flexible metallic
joints.

[[Page 182]]

    (3) Flexible metallic hose acceptable to the Commandant. If
paragraphs (k)(1) or (2) of this section are used, the flexible metallic
joints shall meet the requirements for cargo hose. See Sec. 151.04-
5(h).
    (m) Safety relief valves shall discharge into the protective housing
surrounding the valves. Suitable provisions shall be made to vent the
housing. The arrangement shall be such as to minimize the hazard of
escaping vapors.
    (n) Cargo transfer operations. (1) The amount of chlorine loaded
into each cargo tank shall be determined by weight. Draft marks shall
not be used as a means of weighing. Any chlorine vapors vented during
the filling operation shall be disregarded when calculating the maximum
amount of chlorine to be loaded into the cargo tanks.
    (2) Prior to the start of filling operations, care shall be
exercised to insure that the cargo tanks are empty, dry, and free from
foreign matter.
    (3) After the filling operation is completed, the vapor in each
cargo tank shall be analyzed to determine the percentage of gaseous
chlorine in the vapor space. If it should contain less than 80 percent
chlorine by volume, vapors shall be withdrawn through the vent or vapor
line until the vapor in the cargo tanks contains at least 80 percent
chlorine by volume.
    (4) After filling connections are removed, upon completion of the
loading of a cargo tank, all connections at the tank shall be tested for
leakage of chlorine by the aqua ammonia method.
    (5) The chlorine in the cargo tanks shall be discharged by the
pressure differential method. If the vapor pressure of the chlorine is
not sufficient to force the liquid out of the tank, compressed air, or
other nonreactive gas, may be used to secure the desired rate of
discharge, provided the air or gas is oil-free and thoroughly dried by
passing it over activated aluminum oxide, silica gel, or other
acceptable drying agent, and provided the supply pressure is limited to
75 percent of maximum allowable pressure of chlorine tanks.
    (6) After completion of cargo transfer, any liquid chlorine in the
cargo piping shall be removed and cargo transfer piping shall be
disconnected at the cargo tanks. After disconnecting the cargo piping,
both ends of the line shall be closed and all inlet and outlet valves on
the tank shall be plugged or fitted with blind flanges.
    (o) During cargo transfer, every person on the barge shall carry on
his person a respiratory protective device which will protect the wearer
against chlorine vapors and will provide respiratory protection for
emergency escape from a contaminated area resulting from cargo leakage.
This respiratory protective equipment shall be of such size and weight
that the person wearing it will not be restricted in movement or in the
wearing of a lifesaving device.
    (p) During each internal inspection, each cargo tank must be tested
hydrostatically to 1\1/2\ times the maximum allowable pressure as
determined by the safety relief valve setting.
    (q) During each internal inspection, each cargo tank excess flow
valve and safety relief valve must be inspected and tested in accordance
with paragraphs (g) and (i) of Sec. 151.04-5 of this chapter.
    (r) When periodic inspection indicates that a cargo tank has
deteriorated in service, the maximum allowable pressure shall be
recalculated, using the minimum thickness found by actual measurement.
The recalculated maximum allowable pressure shall be not less than 275
pounds per square inch gauge. If the recalculated maximum allowable
pressure is less than 275 pounds per square inch gauge, the cargo tanks
shall be withdrawn from service.
    (s) The following substances shall not be carried as stores on board
barges transporting chlorine in bulk: hydrogen, methane, liquefied
petroleum gases, coal gas, acetylene, ammonia, turpentine, compounds
containing metallic powders, finely divided metals or finely divided
organic materials.
    (t) The requirements of Sec. 151.50-30 for compressed gases are
also applicable to the shipment of chlorine.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 85-061, 54 FR
50966, Dec. 11, 1989; CGD 85-061, 55 FR 41918, Oct. 16, 1990; USCG-2014-
0688, 79 FR 58284, Sept. 29, 2014]

[[Page 183]]



Sec. 151.50-32  Ammonia, anhydrous.

    (a) The anhydrous ammonia tanks may be installed in the bulk liquid
cargo tanks provided the liquid surrounding the enclosed anhydrous
ammonia tanks complies with the following chemical and physical
properties:
    (1) Boiling point above 125 [deg]F atmospheric pressure.
    (2) Inert to ammonia at 100 [deg]F at atmospheric pressure.
    (3) Noncorrosive in the liquid and vapor phase to the ammonia tanks
and piping.
    (b) Copper, copper alloys, and copper bearing alloys shall not be
used as materials of construction for tanks, pipelines, valves,
fittings, and other items of equipment that may come in contact with
anhydrous ammonia liquid or vapor.
    (c) Valves, flanges and pipe fittings shall be of the tongue and
groove or raised-face type, fitted with suitable gasket material. Welded
fittings shall be used wherever possible and the number of pipe joints
shall be held to a minimum. Threaded joints are not permitted for pipe
diameters exceeding 2 inches. Brazed joints are prohibited.
    (d) All enclosed spaces containing cargo tanks fitted with bottom
outlet connections shall be provided with mechanical ventilation of
sufficient capacity to assure a change of air every 3 minutes.
    (e) Each cargo tank shall be electrically grounded to the hull.
    (f) When transferring cargo, a hose shall be connected to a water
supply so that if leakage of anhydrous ammonia occurs the vapor may be
dispersed by the use of water fog. This requirement can be met by
facilities provided from shore.
    (g) During cargo transfer operations, every person on the vessel
shall carry on his person or have close at hand at all times a canister
mask approved for ammonia or each person shall carry on his person a
respiratory protective device which will protect the wearer against
ammonia vapors and will provide respiratory protection for emergency
escape from a contaminated area resulting from cargo leakage. This
respiratory protective equipment shall be of such size and weight that
the person wearing it will not be restricted in movement or in the
wearing of a lifesaving device.
    (h) [Reserved]
    (i) The requirements of Sec. 151.50-30 for compressed gases are
also applicable to the shipment of anhydrous ammonia.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 85-061, 54 FR
50966, Dec. 11, 1989]



Sec. 151.50-34  Vinyl chloride (vinyl chloride monomer).

    (a) Copper, aluminum, magnesium, mercury, silver, and their alloys
shall not be used as materials of construction for tanks, pipelines,
valves, fittings, and other items of equipment that may come in contact
with vinyl chloride liquid or vapor.
    (b) Valves, flanges, and pipe fittings shall be of the tongue and
groove or raised-face type, fitted with suitable gasket material. Welded
fittings shall be used wherever possible and the number of pipe joints
shall be held to a minimum. Threaded joints are not permitted for pipe
diameters exceeding 2 inches. Brazed joints are prohibited.
    (c) Each cargo tank shall be electrically grounded to the hull.
    (d) The vessel shall be electrically bonded to the shore piping
prior to connecting the cargo hose. This electrical bonding shall be
maintained until after the cargo hose has been disconnected and any
spillage has been removed.
    (e) To the extent he deems it necessary, the Officer in Charge,
Marine Inspection, may require that sufficient insulation shall be
removed from insulated tanks at least once in each 8 calendar years to
permit spot external examination of the tanks and insulation in
accordance with Sec. 151.04-5(c).
    (f) The requirements of Sec. 151.50-30 for compressed gases are
also applicable to the shipment of vinyl chloride.
    (g) The person in charge of cargo transfer shall ensure that:
    (1) Cargo vapors are returned to the cargo tank or shore disposition
for reclamation or destruction during cargo transfer operations;
    (2) Continuous monitoring for vinyl chloride vapor leaks is
conducted aboard a tank barge undergoing vinyl chloride transfer
operations. Fixed or

[[Page 184]]

portable instrumentation may be utilized to ensure that personnel are
not exposed to vinyl chloride vapor concentrations in excess of 1 ppm
averaged over any eight hour period of 5 ppm averaged over any period
not exceeding 15 minutes. The method of monitoring and measurement shall
have an accuracy (with a confidence level of 95 percent) of not less
than plus or minus 50 percent from 0.25 through 0.5 ppm, plus or minus
35 percent from over 0.5 ppm through 1.0 ppm, and plus or minus 25
percent over 1.0 ppm;
    (3) Cargo transfer operation is discontinued or corrective action is
initiated by the person in charge to minimize exposure to personnel
whenever a vinyl chloride vapor concentration in excess of 1 ppm is
detected. If the vinyl chloride vapor concentration exceeds 5 ppm for
over 15 minutes, action to reduce the leak can be continued only if the
respiratory protection requirements of 29 CFR 1910.1017 are met by all
personnel in the area of the leak;
    (4) Those portions of cargo lines which will be open to the
atmosphere after piping is disconnected are free of vinyl chloride
liquid and that the vinyl chloride vapor concentration in the area of
the cargo piping disconnect points is not greater than 5 ppm;
    (5) Any restricted gauge fitted on a tank containing vinyl chloride
is effectively out of service by locking or sealing the device so that
it cannot be used; and
    (6) A restricted gauge is not to be used as a ``check'' on the
required closed gauge, nor as a means or sampling.
    (h) The words ``CANCER--SUSPECT AGENT'' must be added to the warning
signs required by 46 CFR 151.45-2(e).
    (i) Signs bearing the legend:

                   cancer--suspect agent in this area

                      protective equipment required

                        authorized personnel only

must be posted whenever hazardous operations, such as tank cleaning, are
in progress.
    (j) A tank barge undergoing cargo transfer operations must be
designated a ``regulated area'' having access limited to authorized
persons and requiring a daily roster of authorized persons who may board
the barge.
    (k) Employees engaged in hazardous operations, such as tank
cleaning, must be provided, and be required to wear and use respiratory
protection in accordance with the provisions of 29 CFR 1910.1017 and
protective garments, provided clean and dry for each use, to prevent
skin contact with liquid vinyl chloride.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 74-167R, 40 FR
17026, Apr. 16, 1975; CGD 88-100, 54 FR 40040, Sept. 29, 1989]



Sec. 151.50-36  Argon or nitrogen.

    (a) A cargo tank that contains argon or nitrogen and that has a
maximum allowable working pressure of 172 kPa (25 psig) or greater must
have one of the following arrangements:
    (1) A refrigeration system that keeps the tank pressure below the
safety relief valve operating pressure when ambient temperatures are 46
[deg]C (115 [deg]F) air and 32 [deg]C (90 [deg]F) water.
    (2) A relief valve or pressure control valve that maintains the tank
pressure below the setting of the tank's required safety relief valve in
ambient temperatures of 46 [deg]C (115 [deg]F) air and 32 [deg]C (90
[deg]F) water.
    (b) A cargo tank with a maximum allowable working pressure of less
than 172 kPa (25 psig) is approved by the Commandant (CG-ENG) on a case
by case basis.
    (c) Section 151.50-30 also applies to the carriage of argon or
nitrogen.

[CGD 88-100, 54 FR 40040, Sept. 29, 1989]



Sec. 151.50-40  Additional requirements for carbon disulfide (carbon
bisulfide) and ethyl ether.

    (a) The provisions of this section are applicable if specifically
referenced in the Special Requirements column of Table 151.05.
    (b) Cargo tanks shall be electrically bonded to the hull of the
vessel. A vessel shall be electrically bonded to the shore piping prior
to connecting the cargo hose. This electrical bonding shall be
maintained until after the cargo hose has been disconnected and any
spillage has been removed.
    (c) Pumps may be used for discharging cargo: Provided, That they are

[[Page 185]]

the vertical submerged type designed to avoid liquid pressure against
the shaft gland and are suitable for use with the cargo.
    (d) Provisions shall be made to maintain an inert gas padding in the
cargo tank during loading, unloading and during transit.
    (e) Provisions shall be made to prevent any leakage being washed
into the waterways at the loading and unloading points.
    (f) The special requirements of Sec. 151.50-41 for carbon disulfide
(carbon bisulfide) and Sec. 151.50-42 for ethyl ether shall also be
observed.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40029, Sept. 29, 1989]



Sec. 151.50-41  Carbon disulfide (carbon bisulfide).

    (a) All openings shall be in the top of the tank.
    (b) Loading lines shall terminate near the bottom of the tank.
    (c) A standard ullage opening shall be provided for secondary and
emergency sounding.
    (d) If a cargo discharge pump is used, it shall be inserted through
a cylindrical well extending from the tank top to a point near the tank
bottom. A blanket of water shall be formed in this well before
attempting pump removal.
    (e) Water or inert gas displacement may be used for discharging
cargo provided the cargo system is designed for the expected pressure
and temperature. This method for discharging may be used with pressure
type tanks only.
    (f) Adequate natural ventilation shall be provided for the voids
around the cargo tanks while the vessel is under way. During loading and
unloading, forced ventilation shall be used. The forced ventilation
shall be of sufficient capacity to provide a complete change of air
within each void space every 5 minutes. The ventilating fan shall be of
nonsparking construction.
    (g) Because of its low ignition temperature and the close clearances
required to arrest its flame propagation, carbon disulfide (carbon
bisulfide) requires safeguards beyond those required for any electrical
hazard groups.
    (h) The requirements of Sec. 151.50-40 are also applicable to the
shipment of carbon disulfide (carbon bisulfide).

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.50-42  Ethyl ether.

    (a)(1) Gravity tanks shall be designed and tested to meet the rules
of the American Bureau of Shipping for a head of water at least 8 feet
above the tank top or the highest level the lading may rise, whichever
is greater. All openings shall be in the top of the tank.
    (2) Pressure vessel type tanks shall be designed for the maximum
pressure to which they may be subjected when pressure is used to
discharge the cargo, but in no case shall the design pressure be less
than 50 pounds per square inch gauge. All openings shall be in the top
of the tank.
    (b) Adequate natural ventilation shall be provided for the voids
around the cargo tanks while the vessel is underway. If a power
ventilation system is installed, all blowers shall be of nonsparking
construction. Power driven ventilation equipment shall not be located in
the void spaces surrounding the cargo tanks.
    (c) Pressure relief valve settings shall not be less than 3 pounds
per square inch gauge for gravity tanks. For pressure vessels, the
relief valve setting shall not exceed the design pressure of the tank.
    (d) Inert gas displacement may be used for discharging cargo from
pressure vessel tanks provided the cargo system is designed for the
expected pressure and the discharge pressure does not exceed 50 pounds
per square inch gauge or the design pressure of the tank, whichever is
less.
    (e) No electrical equipment except for approved lighting fixtures
shall be installed in enclosed spaces adjacent to the cargo tanks.
Lighting fixtures must be approved for use in Class I, Group C,
hazardous locations. The installation of electrical equipment on the
weather deck shall comply with the requirements of part 111, subpart
111.105 of this chapter.

[[Page 186]]

    (f) Copper, silver, mercury and magnesium or other acetylide forming
metals and their alloys shall not be used as materials of construction
for tanks, pipelines, valves, fittings and other items of equipment that
may come in contact with the cargo vapor or liquid.
    (g) Precautions shall be taken to prevent the contamination of ethyl
ether by strong oxidizing agents.
    (h) The requirements of Sec. 151.50-40 are also applicable to the
shipment of ethyl ether.

[CFGR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 88-100, 54 FR
40040, Sept. 29, 1989]



Sec. 151.50-50  Elemental phosphorus in water.

    (a) Tanks shall be designed and tested for a head equivalent to the
design lading of phosphorus and its water blanket extended to 8 feet
above the tank top. In addition, tank design calculations shall
demonstrate that the tank can withstand, without rupture, a single
loading to the highest level to which the water blanket may rise, if
that exceeds 8 feet. Tanks shall not be less than \5/16\-inch thick.
    (b) When a water displacement method of discharge is used, pressure
vessel type cargo tanks, designed and tested in accordance with
Subchapter F of this chapter shall be employed. Such tanks shall be
designed for the maximum pressure to which they may be subjected when
water pressure is used to discharge the cargo.
    (c) Each cargo tank shall be fitted with an approved pressure vacuum
relief valve set to discharge at a pressure not exceeding 2 pounds per
square inch. When transferring cargo, the vent discharge shall lead
overboard above the waterline. When pressure vessel type tanks are used,
each tank shall be fitted with a relief valve of suitable size.
    (d) Sufficient outage shall be provided to prevent the tank from
being liquid full at any time, but in no case shall the outage be less
than 1 percent. When pressure vessel type tanks are used, outage need
not be provided.
    (e) The use of compressed air to discharge cargo is prohibited.
    (f) Cargo shall be loaded at a temperature not exceeding 140 [deg]F,
and then cooled until the water above the cargo has a temperature not
exceeding 105 [deg]F prior to the movement of the vessel. Upon
presentation of satisfactory proof that procedures followed will provide
adequate safety in transportation and handling, the Commandant may
authorize movement of the vessel following cooling of the water above
the cargo to a temperature exceeding 105 [deg]F.
    (g) Coils in which steam or hot water is circulated to heat the
cargo so that it may be pumped shall be located outside the cargo tanks.
    (h) A fixed ballast piping system (including a power driven pump of
ample capacity), or other means acceptable to the Commandant shall be
installed so that any void space surrounding the tanks may be flooded.
    (i) All openings shall be in the top of the tank and shall be fitted
with bolted cover plates and gaskets resistant to the attack of
phosphorus pentoxide.
    (j) All enclosed compartments containing cargo tanks shall be
provided with effective means of ventilation.
    (k) Cargo lines shall be traced with steam piping and secured
thereto by lagging to prevent solidification of cargo during transfer
operations.
    (l) During cargo transfer, a water hose shall be connected to a
water supply ready for immediate use, and any spillage of phosphorus
shall be immediately washed down. This requirement can be met by
facilities provided from shore.
    (m) At least two fresh air masks or self-contained breathing
apparatus shall be stowed on board the vessel at all times for use of
personnel entering the tanks or adjacent spaces.
    (n) Authorization from the Commandant (CG-ENG) shall be obtained to
transport lading other than phosphorus in the cargo tanks or to have on
board any other cargo when phosphorus is laden in the tanks.
    (o) Mechanical ventilation of sufficient capacity to insure a change
of air within the cargo tanks every 3 minutes shall be provided during
the inspection and maintenance of the cargo tanks.
    (p) Cargo tanks shall be electrically bonded to the hull of the
barge. A vessel shall be electrically bonded to the shore piping prior
to connecting the

[[Page 187]]

cargo hose. This electrical bonding shall be maintained until after the
cargo hose has been disconnected.

[CGFR 70-10, 35 FR 3714, Feb. 24, 1970, as amended by CGD 82-063b, 48 FR
4781, Feb. 3, 1983]



Sec. 151.50-55  Sulfur (molten).

    (a) Ventilation (cargo tank):
    (1) Cargo tank ventilation shall be provided to maintain the
concentration of H2S below one-half of its lower explosive
limit throughout the cargo tank vapor space for all conditions of
carriage; i.e., below 1.85 percent by volume.
    (2) Where mechanical ventilation systems are used for maintaining
low gas concentrations in cargo tanks, an alarm system shall be provided
to give warning if the system fails.
    (3) Connections shall be provided to enable sampling of the
atmosphere over the cargo in each cargo tank for analysis.
    (4) The ventilation system shall be designed and arranged to
preclude the depositing of sulfur within the system.
    (b) Void spaces:
    (1) Openings to void spaces adjacent to cargo tanks shall be
designed and fitted to prevent the entry of water, sulfur or cargo
vapors.
    (2) Connections shall be provided to enable sampling and analyzing
vapors in void spaces.
    (c) Temperature controls shall be provided in accordance with Sec.
151.20-10 and applicable sections of Subpart 151.40 of this part. Heat
transfer media shall be steam, and alternate media will require specific
approval of the Commandant.

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970]



Sec. 151.50-60  Benzene.

    The person in charge of a Coast Guard inspected barge must ensure
that the provisions of part 197, subpart C, of this chapter are applied.

[CGD 88-040, 56 FR 65006, Dec. 13, 1991]



Sec. 151.50-70  Cargoes requiring inhibition or stabilization.

    When table 151.05 refers to this section, that cargo must be--
    (a) Inhibited; or
    (b) Stabilized.

[CGD 88-100, 54 FR 40040, Sept. 29, 1989]



Sec. 151.50-73  Chemical protective clothing.

    When table 151.05 refers to this section, the following apply:
    (a) The person in charge of cargo handling operations shall ensure
that the following chemical protective clothing constructed of materials
resistant to permeation by the cargo being handled is worn by all
personnel engaged in an operation listed in paragraph (b) of this
section:
    (1) Splash protective eyewear.
    (2) Long-sleeved gloves.
    (3) Boots or shoe covers.
    (4) Coveralls or lab aprons.

    Note: ``Guidelines for the Selection of Chemical Protective
Clothing'', Third Edition, 1987, available from the American Conference
of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive,
Cincinnati, OH 45240-1634, provides information on the proper clothing
for the cargo being handled.

    (b) The section applies during the following operations:
    (1) Sampling cargo.
    (2) Transferring cargo.
    (3) Making or breaking cargo hose connections.
    (4) Gauging a cargo tank, unless gauging is by closed system.
    (5) Opening cargo tanks.
    (c) Coveralls or lab aprons may be replaced by splash suits or
aprons constructed of light weight or disposable materials if, in the
judgment of the person in charge of cargo handling operations,
    (1) Contact with the cargo is likely to occur only infrequently and
accidentally; and
    (2) The splash suit or apron is disposed of immediately after
contamination.
    (d) Splash protective eyewear must be tight-fitting chemical-splash
goggles, face shields, or similar items intended specifically for eye
protection from chemical splashing or spraying.
    (e) The person in charge of cargo handling operations shall ensure
that each person in the vicinity of an operation listed in the paragraph
(b) of this section or in the vicinity of tanks, piping, or pumps being
used to transfer the

[[Page 188]]

cargo wears splash protective eyewear under paragraph (d) of this
section.

[CGD 88-100, 54 FR 40040, Sept. 29, 1989, as amended by USCG-1999-6216,
64 FR 53227, Oct. 1, 1999]



Sec. 151.50-74  Ethylidene norbornene.

    When Table 151.05 refers to this section, the following apply:
    (a) 151.50-5 (g) and (h)
    (b) Rubber hoses or fittings may not be used in transfer operations.

[CGD 80-001, 46 FR 63279, Dec. 31, 1981]



Sec. 151.50-75  Ferric chloride solution.

    A containment system (cargo tank piping system, venting system, and
gauging system) carrying this solution must be lined with rubber,
corrosion resistant plastic, or a material approved by the Commandant
(CG-ENG).

[CGD 80-001, 46 FR 63279, Dec. 31, 1981, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983; CGD 88-100, 54 FR 40041, Sept. 29, 1989; 55 FR
17276, Apr. 24, 1990]



Sec. 151.50-76  Hydrochloric acid, spent (NTE 15%).

    (a)(1) Gravity type cargo tanks must be designed and tested to meet
the rules of the American Bureau of Shipping for a head of water at
least 8 feet above the tank top or the highest level the lading may
rise, whichever is greater. The plate thickness of any part of the tank
may not be less than three-eighths inch. A shell plating of a barge may
not be on the boundary of any part of the cargo tank.
    (2) Gravity tank vents must:
    (i) Terminate above the weatherdeck, clear of all obstructions and
away from any from any source of ignition; and
    (ii) Be fitted with a single flame screen or two fitted flame
screens as described in Sec. 151.03-25. Neither a shut-off valve nor a
frangible disk may be fitted in the vent lines.
    (b) Openings in the tanks are prohibited below deck, except for
access openings used for inspection and maintenance of tanks, or unless
otherwise specifically approved by the Commandant (CG-ENG). Openings
must be fitted with bolted cover plates and acid-resistant gaskets.
    (c) Where special arrangements are approved by the Commandant (CG-
ENG) to permit a pump suction to be led from the bottom of the tank, the
filling and discharge lines must be fitted with shutoff valves located
above the weatherdeck or operable from it.
    (d) The outage may not be less than 1 percent.
    (e) An enclosed compartment containing, or a compartment adjacent
to, a cargo tank:
    (1) May have no electrical equipment that does not meet or exceed
class I-B electrical requirements; and
    (2) Must have at least one gooseneck vent of 2.5 inch diameter or
greater. The structural arrangement of the compartment must provide for
the free passage of air and gases to the vent or vents.
    (f) No lights may be used during the cargo transfer operations,
except installed electric or portable battery lights. Smoking is
prohibited and the person in charge of cargo transfer shall ensure that
``No Smoking'' signs are displayed during cargo transfer operations.
    (g) Tanks approved for the transportation of acid cargoes subject to
this section may not be used for the transportation of any other
commodity, except upon authorization by the Commandant (CG-ENG).
    (h) Each cargo tank must be examined internally at least once in
every 4 years. If the lining of the cargo tank has deteriorated in
service or is not in place, the Marine Inspector may require the tank to
be tested by such nondestructive means as he may consider necessary to
determine its condition.

[CGD 80-001, 46 FR 63279, Dec. 31, 1981, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983]



Sec. 151.50-77  Fluorosilicic acid (30% or less) (hydrofluorosilicic
acid).

    (a) Hydrofluorosilicic acid must be carried in gravity or pressure
type cargo tanks independent of the vessel's structure. The tanks must
be lined with rubber or other equally suitable material approved by the
Commandant (CG-ENG). See Sec. 151.15-3(f)(2).
    (b) Notwithstanding the provisions of Sec. 151.50-20(b)(3), no
compressed air may be used to discharge hydrofluorosilicic

[[Page 189]]

acid from gravity type cargo tanks unless:
    (1) The tanks are of cylindrical shape with dished heads, and
    (2) The air pressure does not exceed:
    (i) The design pressure of the tank, and
    (ii) 10 pounds per square inch gauge. The tanks must be fitted with
pressure relief devices.
    (c) During cargo transfer, a water hose must be connected to a water
supply and be ready for immediate use. Any leakage or spillage of acid
must be immediately washed down. This requirement can be met by
facilities provided from shore.

[CGD 80-001, 46 FR 63279, Dec. 31, 1981, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983; CGD 92-100, 59 FR 17028, Apr. 11, 1994]



Sec. 151.50-79  Methyl acetylene-propadiene mixture.

    (a) The composition of the methyl acetylene-propadiene mixture at
loading must be within one of the following sets of composition limits:
    (1) Composition 1 is:
    (i) Maximum methyl acetylene to propadiene molar ratio of 3 to 1;
    (ii) Maximum combined concentration of methyl acetylene and
propadiene of 65 mole percent;
    (iii) Minimum combined concentration of propane, butane, and
isobutane of 24 mole percent, of which at least one-third (on a molar
basis) must be butanes and one-third propane; and
    (iv) Maximum combined concentration of propylene and butadiene of 10
mole percent.
    (2) Composition 2 is:
    (i) Maximum methyl acetylene and propadiene combined concentration
of 30 mole percent;
    (ii) Maximum methyl acetylene concentration of 20 mole percent;
    (iii) Maximum propadiene concentration of 20 mole percent;
    (iv) Maximum propylene concentration of 45 mole percent;
    (v) Maximum butadiene and butylenes combined concentration of 2 mole
percent;
    (vi) Minimum saturated C4 hydrocarbon concentration of 4
mole percent; and
    (vii) Minimum propane concentration of 25 mole percent.
    (b) A barge carrying a methyl acetylene-propadiene mixture must have
a refrigeration system that does not compress the cargo vapor or have a
refrigeration system with the following features:
    (1) A vapor compressor that does not raise the temperature and
pressure of the vapor above 60 [deg]C (140 [deg]F) and 1.72 MPa gauge
(250 psig) during its operations, and that does not allow vapor to
stagnate in the compressor while it continues to run.
    (2) At the discharge piping from each compressor stage or each
cylinder in the same stage of a reciprocating compressor:
    (i) Two temperature actuated shutdown switches set to operate at 60
[deg]C (140 [deg]F) or less;
    (ii) A pressure actuated shutdown switch set to operate at 1.72 MPa
gauge (250 psig) or less; and
    (iii) A safety relief valve set to relieve at 1.77 MPa gauge (256
psig) or less anywhere except into the compressor suction line.
    (c) The piping system, including the cargo refrigeration system, for
tanks to be loaded with methyl acetylene-propadiene mixture must be
completely separate from piping and refrigeration systems for other
tanks. If the piping system for the tanks to be loaded with methyl
acetylene-propadiene mixture is not independent, the required piping
separation must be accomplished by the removal of spool pieces, valves
or other pipe sections and the installation of blank flanges at these
locations. The required separation applies to all liquid and vapor
piping, liquid and vapor vent lines and any other possible connections,
such as common inert gas supply lines.

[CGD 80-001, 46 FR 63279, Dec. 31, 1981, as amended by USCG-2014-0688,
79 FR 58284, Sept. 29, 2014]



Sec. 151.50-80  Nitric acid (70% or less).

    (a) Tanks, cargo piping, valves, fittings, and flanges (where
exposed to the acid) must be lined with nitric acid resistant rubber or
fabricated from nitric acid resistant stainless steel. See Sec. 151.15-
3(f)(2).
    (b) During cargo transfer, a water hose must be connected to a water
supply, ready for immediate use. Any

[[Page 190]]

leakage or spillage of acid must be immediately washed down. This
requirement can be met by facilities provided from shore.
    (c) Nitric acid contaminated by other chemicals, oils, solvents,
etc. may not be transported in bulk without an authorization from the
Commandant (CG-ENG).

[CGD 80-001, 46 FR 63280, Dec. 31, 1981, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983; CGD 88-100, 54 FR 40041, Sept. 29, 1989]



Sec. 151.50-81  Special operating requirements for heat sensitive cargoes.

    When table 151.05 refers to this section, the following apply to the
cargo:
    (a) Must not be carried in a tank equipped with heating coils unless
the heating supply to the coils is disconnected.
    (b) Must not be carried in a tank adjacent to another tank
containing an elevated temperature cargo.
    (c) Must not be carried in a deck tank.

[CGD 80-001, 46 FR 63280, Dec. 31, 1981, as amended by CGD 88-100, 54 FR
40041, Sept. 29, 1989]



Sec. 151.50-84  Sulfur dioxide.

    (a) Sulfur dioxide that is transported under the provisions of this
part may not contain more than 100 ppm of water.
    (b) Cargo piping must be at least Schedule 40 pipe.
    (c) Flanges must be 150 lb. A.N.S.I. Standard minimum with tongue
and groove or raised face.
    (d) A cargo tank must:
    (1) Meet the requirements of a Class I welded pressure vessel;
    (2) Be designed for a maximum allowable working pressure of at least
125 psig;
    (3) Be hydrostatically tested every two years to at least 188 psig;
    (4) Be provided with one or more manholes that are fitted with a
cover sized not less than 15 inches by 23 inches or 13 inches nominal
diameter, located above the maximum liquid level, and as close as
possible to the top of the tank;
    (5) Have no openings other than those required in paragraph (d)(4)
of this section;
    (6) Have no liquid level gauges other than closed or indirect
gauges;
    (7) Have all valves and the closed gauge that is required by Table
151.05 bolted to the cover or covers that are required in paragraph
(d)(4) of this section;
    (8) Have a metal housing that is fitted with a drain and vent
connection protecting all valves and the closed gauge within this
housing against mechanical damage;
    (9) Have all safety relief valves discharging into the protective
housing;
    (10) Not be interconnected with another cargo tank by piping or
manifold that carriers cargo liquid, except vapor lines connected to a
common header, and
    (11) Have an excess flow valve that is located on the inside of the
tank for every liquid and vapor connection, except the safety relief
valve;
    (12) Have no bypass opening on any excess flow valve.
    (e) Cargo transfer operations:
    (1) May not be conducted with more than one cargo tank at a time
unless each tank is filled from or discharged to shore tanks through
separate lines;
    (2) Must be conducted with connections between fixed barge piping
and shore piping of either Schedule 40 pipe having flexible metallic
joints that meet Sec. 151.04-5(h) or of flexible metallic hose that is
acceptable to the Commandant (CG-ENG);
    (3) From barge to shore must be by pressurization with an oil free,
non-reactive gas that has a maximum of 100 ppm moisture;
    (4) Must be conducted with vapor return to shore connections that
ensure that all vapor is returned to shore; and
    (5) Must be conducted with every person on the barge carrying a
respiratory protective device that protects the wearer against sulfur
dioxide vapors and provides respiratory protection for emergency escape
from a contaminated area that results from cargo leakage.
    (f) Respiratory protective equipment must be of a size and weight
that allows unrestricted movement and wearing of a lifesaving device.
    (g) After the completion of cargo transfer, all liquid sulfur
dioxide in the cargo piping must be removed and

[[Page 191]]

cargo transfer piping must be disconnected at the cargo tanks. After the
cargo piping is disconnected, both ends of the line must be plugged or
fitted with blind flanges.

[CGD 80-001, 46 FR 63280, Dec. 31, 1981, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983; CGD 88-100, 54 FR 40041, Sept. 29, 1989; 55 FR
17276, Apr. 24, 1990; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 151.50-86  Alkyl (C7-C9) nitrates.

    (a) The carriage temperature of octyl nitrates must be maintained
below 100 [deg]C (212 [deg]F) in order to prevent the occurrence of a
self-sustaining exothermic decomposition reaction.
    (b) Octyl nitrates may not be carried in a deck tank unless the tank
has a combination of insulation and a water deluge system sufficient to
maintain the tank's cargo temperature below 100 [deg]C (212 [deg]F) and
the cargo temperature rise at or below 1.5 [deg]C(2.7 [deg]F)/hour, for
a fire of 650 [deg]C (1200 [deg]F).

[CGD 88-100, 54 FR 40040, Sept. 29, 1989; CGD 92-100, 59 FR 17028, Apr.
11, 1994]



    Subpart 151.55_Special Requirements for Materials of Construction



Sec. 151.55-1  General.

    (a) This section provides special requirements for the materials of
construction of equipment that may come into contact with various
cargoes. Table 151.05 contains specific requirements for various
cargoes.
    (b) Copper, copper alloys, zinc, and aluminum shall not be used as
materials of construction for tanks, pipelines, valves, fittings, and
other items of equipment that may come in contact with the cargo liquid
or vapor. (Equivalent to Sec. 151.56-1(a),(b), and (c).)
    (c) Copper, copper alloys, zinc, galvanized steel, and mercury shall
not be used as materials of construction for tanks, pipelines, valves,
fittings, and other items of equipment that may come in contact with the
cargo liquid or vapor. (Equivalent to Sec. 151.56-1(b),(c), and (g).)
    (d) Aluminum, magnesium, zinc, and lithium shall not be used as
materials of construction for tanks, pipelines, valves, fittings, and
other items of equipment that may come in contact with the cargo liquid
or vapor. (Equivalent to Sec. 151.56-1(a),(c), and (d).)
    (e) Copper and copper bearing alloys shall not be used as materials
of construction for tanks, pipelines, valves, fittings, and other items
of equipment that may come in contact with the cargo liquid or vapor.
(Equivalent to Sec. 151.56-1(b).)
    (f) Aluminum or copper or alloys of either shall not be used as
materials of construction for tanks, pipelines, valves, fittings, and
other items of equipment that may come in contact with the cargo vapor
or liquid. (Equivalent to Sec. 151.56-1(a) and (b).)
    (g) Aluminum, stainless steel, or steel covered with a suitable
protective lining or coating shall be used as materials of construction
for tanks, pipelines, valves fittings, and other items of equipment that
may come in contact with the cargo liquid or vapor. (Equivalent to Sec.
151.58-1(a).)
    (h) Alkaline or acidic materials, such as caustic soda or sulfuric
acid, should not be allowed to contaminate this cargo.
    (i) For concentrations of 98 percent or greater, aluminum or
stainless steel shall be used as materials of construction. For
concentrations of less than 98 percent, 304L or 316 stainless steel
shall be used as materials of construction.
    (j) Zinc, alloys that have more than 10 percent zinc by weight, and
aluminum may not be used as materials of construction for tanks,
pipelines, valves, fittings, and other items of equipment that may come
in contact with cargo liquid or vapor. (Equivalent to Sec. 151.56-1(a)
and (c).)

[CGFR 70-10, 35 FR 3714, Feb. 25, 1970, as amended by CGD 73-275R, 41 FR
3087, Jan. 21, 1976; CGD 75-223, 42 FR 8378, Feb. 10, 1977; CGD 88-100,
54 FR 40041, Sept. 29, 1989]



           Subpart 151.56_Prohibited Materials of Construction



Sec. 151.56-1  Prohibited materials.

    When one of the following paragraphs of this section is referenced
in table 151.05, the materials listed in that paragraph may not be used
in components that contact the cargo or its vapor:
    (a) Aluminum or aluminum alloys.

[[Page 192]]

    (b) Copper or copper alloys.
    (c) Zinc, galvanized steel, or alloys having more than 10 percent
zinc by weight.
    (d) Magnesium.
    (e) Lead.
    (f) Silver or silver alloys.
    (g) Mercury.

[CGD 88-100, 54 FR 40041, Sept. 29, 1989]



            Subpart 151.58_Required Materials of Construction



Sec. 151.58-1  Required materials.

    When one of the following paragraphs of this section is referenced
in table 151.05, only those materials listed in that paragraph may be
used in components that contact the cargo or its vapor:
    (a) Aluminum, stainless steel, or steel covered with a protective
lining or coating. (See Sec. 151.15-3(f)(2).)
    (b)-(c) [Reserved]
    (d) Solid austenitic stainless steel.
    (e) Stainless steel or steel covered with a suitable protective
lining or coating. (See Sec. 151.15-3(f)(2).)

[CGD 88-100, 54 FR 40041, Sept. 29, 1989]

                           PART 152 [RESERVED]



PART 153_SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS
HAZARDOUS MATERIALS--Table of Contents



                            Subpart A_General

Sec.
153.0 Availability of materials.
153.1 Applicability.
153.2 Definitions and acronyms.
153.3 Right of appeal.
153.4 Incorporation by reference.
153.7 Ships built before December 27, 1977 and non-self-propelled ships
          built before July 1, 1983: Application.
153.8 Procedures for requesting an endorsed Certificate of Inspection.
153.9 Foreign flag vessel endorsement application.
153.10 Procedures for requesting alternatives and waivers; termination
          of waivers.
153.12 IMO Certificates for United States Ships.
153.15 Conditions under which the Coast Guard issues a Certificate of
          Inspection or Certificate of Compliance.
153.16 Requirements for foreign flag vessel permits.
153.30 Special area endorsement.
153.40 Determination of materials that are hazardous.

                     Subpart B_Design and Equipment

                       General Vessel Requirements

153.190 Stability requirements.
153.201 Openings to accommodation, service or control spaces.
153.208 Ballast equipment.
153.209 Bilge pumping systems.
153.214 Personnel emergency and safety equipment.
153.215 Safety equipment lockers.
153.216 Shower and eyewash fountains.
153.217 Access to enclosed spaces and dedicated ballast tanks.
153.219 Access to double bottom tanks serving as dedicated ballast
          tanks.

                        Cargo Containment Systems

153.230 Type I system.
153.231 Type II system.
153.232 Type III system.
153.233 Separation of tanks from machinery, service and other spaces.
153.234 Fore and aft location.
153.235 Exceptions to cargo piping location restrictions.
153.236 Prohibited materials.
153.238 Required materials.
153.239 Use of cast iron.
153.240 Insulation.

                               Cargo Tanks

153.250 Double-bottom and deep tanks as cargo tanks.
153.251 Independent cargo tanks.
153.252 Special requirement for an independent cargo tank.
153.254 Cargo tank access.
153.256 Trunks, domes, and openings of cargo tanks.
153.266 Tank linings.

               Piping Systems and Cargo Handling Equipment

153.280 Piping system design.
153.281 Piping to independent tanks.
153.282 Cargo filling lines.
153.283 Valving for cargo piping.
153.284 Characteristics of required quick closing valves.
153.285 Valving for cargo pump manifolds.
153.292 Separation of piping systems.
153.294 Marking of piping systems.
153.296 Emergency shutdown stations.
153.297 Emergency actuators at the point of cargo control.

                    Cargo Handling Space Ventilation

153.310 Ventilation system type.
153.312 Ventilation system standards.

[[Page 193]]

153.314 Ventilation of spaces not usually occupied.
153.316 Special cargo pumproom ventilation rate.

                             Cargo Pumprooms

153.330 Access.
153.332 Hoisting arrangement.
153.333 Cargo pump discharge pressure gauge.
153.334 Bilge pumping systems.
153.336 Special cargo pump or pumproom requirements.

                          Cargo Venting Systems

153.350 Location of B/3 vent discharges.
153.351 Location of 4 m vent discharges.
153.352 B/3 and 4 m venting system outlets.
153.353 High velocity vents.
153.354 Venting system inlet.
153.355 PV venting systems.
153.358 Venting system flow capacity.
153.360 Venting system restriction.
153.361 Arrangements for removal of valves from venting systems having
          multiple relief valves.
153.362 Venting system drain.
153.364 Venting system supports.
153.365 Liquid overpressurization protection.
153.368 Pressure-vacuum valves.
153.370 Minimum relief valve setting for ambient temperature cargo
          tanks.
153.371 Minimum relief valve setting for refrigerated cargo tanks.
153.372 Gauges and vapor return for cargo vapor pressures exceeding 100
          kPa (approx. 14.7 psia).

                          Cargo Gauging Systems

153.400 General requirements for gauges.
153.404 Standards for containment systems having required closed gauges.
153.406 Standards for containment systems having required restricted
          gauges.
153.407 Special requirements for sounding tube gauges.
153.408 Tank overflow control.
153.409 High level alarms.

                    Cargo Temperature Control Systems

153.430 Heat transfer systems; general.
153.432 Cooling systems.
153.434 Heat transfer coils within a tank.
153.436 Heat transfer fluids: compatibility with cargo.
153.438 Cargo pressure or temperature alarms required.
153.440 Cargo temperature sensors.

        Special Requirements for Flammable or Combustible Cargoes

153.460 Fire protection systems.
153.461 Electrical bonding of independent tanks.
153.462 Static discharges from inert gas systems.
153.463 Vent system discharges.
153.465 Flammable vapor detector.
153.466 Electrical equipment.

               Design and Equipment for Pollution Control

153.470 System for discharge of NLS residue to the sea: Categories A, B,
          C, and D.
153.480 Stripping quantity for Category B and C NLS tanks on ships built
          after June 30, 1986: Categories B and C.
153.481 Stripping quantities and interim standards for Category B NLS
          tanks on ships built before July 1, 1986: Category B.
153.482 Stripping quantities and interim standards for Category C NLS
          tanks on ships built before July 1, 1986: Category C.
153.483 Restricted voyage waiver for Category B and C NLS tanks on ships
          built before July 1, 1986: Category B and C.
153.484 Prewash equipment.
153.486 Design and equipment for removing NLS residue by ventilation:
          Categories A, B, C, and D.
153.488 Design and equipment for tanks carrying high melting point NLSs:
          Category B.
153.490 Cargo Record Book and Approved Procedures and Arrangements
          Manual: Categories A, B, C, and D.
153.491 Waiver of certain equipment for dedicated cargo tanks.

                          Special Requirements

153.500 Inert gas systems.
153.501 Requirement for dry inert gas.
153.515 Special requirements for extremely flammable cargoes.
153.520 Special requirements for carbon disulfide.
153.525 Special requirements for unusually toxic cargoes.
153.526 Toxic vapor detectors.
153.527 Toxic vapor protection.
153.530 Special requirements for alkylene oxides.
153.545 Special requirements for liquid sulfur.
153.554 Special requirements for acids.
153.555 Special requirements for inorganic acids.
153.556 Special requirements for sulfuric acid and oleum.
153.557 Special requirements for hydrochloric acid.
153.558 Special requirements for phosphoric acid.
153.559 Special requirements for nitric acid (less than 70 percent).
153.560 Special requirements for Alkyl (C7-C9) nitrates.
153.565 Special requirements for temperature sensors.

[[Page 194]]

153.602 Special requirements for cargoes reactive with water.

                         Testing and Inspection

153.806 Loading information.
153.808 Examination required for a Certificate of Compliance.
153.809 Procedures for having the Coast Guard examine a vessel for a
          Certificate of Compliance.
153.812 Inspection for Certificate of Inspection.

                          Subpart C_Operations

                     Documents and Cargo Information

153.900 Certificates and authorization to carry a bulk liquid hazardous
          material.
153.901 Documents: Posting, availability, and alteration.
153.902 Expiration and invalidation of the Certificates of Compliance.
153.903 Operating a United States ship in special areas: Categories A,
          B, and C.
153.904 Limitations in the endorsement.
153.905 Regulations required to be on board.
153.907 Cargo information.
153.908 Cargo viscosity and melting point information; measuring cargo
          temperature during discharge: Categories A, B, and C.
153.909 Completing the Cargo Record Book and record retention:
          Categories A, B, C, and D.
153.910 Cargo piping plan.
153.912 Certficate of inhibition or stabilization.

                 General Cargo Operational Requirements

153.920 Cargo quantity limitations.
153.921 Explosives.
153.923 Inerting systems.

                          General Vessel Safety

153.930 Cargo antidotes.
153.931 Obstruction of pumproom ladderways.
153.932 Goggles and protective clothing.
153.933 Chemical protective clothing.
153.934 Entry into spaces containing cargo vapor.
153.935 Opening of tanks and cargo sampling.
153.935a Storage of cargo samples.
153.936 Illness, alcohol, drugs.

                     Marking of Cargo Transfer Hose

153.940 Standards for marking of cargo hose.

                        Cargo Transfer Procedures

153.953 Signals during cargo transfer.
153.955 Warning signs during cargo transfer.
153.957 Persons in charge of transferring liquid cargo in bulk or
          cleaning cargo tanks.
153.959 Approval to begin transfer operations required.
153.964 Discharge by gas pressurization.
153.966 Discharge by liquid displacement.
153.968 Cargo transfer conference.
153.970 Cargo transfer piping.
153.972 Connecting a cargo hose.
153.975 Preparation for cargo transfer.
153.976 Transfer of packaged cargo or ship's stores.
153.977 Supervision of cargo transfer.
153.979 Gauging with a sounding tube.
153.980 Isolation of automatic closing valves.
153.981 Leaving room in tank for cargo expansion.
153.983 Termination procedures.

                        Special Cargo Procedures

153.1000 Special operating requirements for cargoes reactive with water.
153.1002 Special operating requirements for heat sensitive cargoes.
153.1003 Prohibited carriage in deck tanks.
153.1004 Inhibited and stabilized cargoes.
153.1010 Alkylene oxides.
153.1011 Changing containment systems and hoses to and from alkylene
          oxide service.
153.1020 Unusually toxic cargoes.
153.1025 Motor fuel antiknock compounds.
153.1035 Acetone cyanohydrin or lactonitrile solutions.
153.1040 Carbon disulfide.
153.1045 Inorganic acids.
153.1046 Sulfuric acid.
153.1052 Carriage of other cargoes in acid tanks.
153.1060 Benzene.
153.1065 Sodium chlorate solutions.

 Approval of Surveyors and Handling of Categories A, B, C, and D Cargo
                             and NLS Residue

153.1100 Responsibility of the person in charge.
153.1101 Procedures for getting a Surveyor: Approval of Surveyors.
153.1102 Handling and disposal of NLS residue: Categories A, B, C, and
          D.
153.1104 Draining of cargo hose: Categories A, B, C, and D.
153.1106 Cleaning agents.
153.1108 Heated prewash for solidifying NLS, high viscosity NLS and
          required prewashes of NLS whose viscosity exceeds 25 mPa sec
          at 20 [deg]C: Categories A, B, and C.
153.1112 Prewash for tanks containing Category A NILS residue.
153.1114 Conditions under which a prewash may be omitted: Categories A,
          B, and C.
153.1116 Prewash for tanks unloaded without following the approved
          Procedures and Arrangements Manual: Category B and C.

[[Page 195]]

153.1118 Prewash of Categories B and C cargo tanks not meeting stripping
          standards: Categories B and C.
153.1119 When to prewash and discharge NLS residues from a prewash;
          unloading an NLS cargo in a country whose Administration is
          not signatory to MARPOL 73/78: Categories A, B, and C.
153.1120 Procedures for tank prewash: Categories A, B, and C.
153.1122 Discharges of NLS residue from tank washing other than a
          prewash: Categories A, B, and C.
153.1124 Discharges of Category D NLS residue.
153.1126 Discharge of NLS residue from a slop tank to the sea:
          Categories A, B, C, and D.
153.1128 Discharge of NLS residue from a cargo tank to the sea:
          Categories A, B, C, and D.
153.1130 Failure of slops discharge recording equipment; operating with,
          reporting failures, and replacing pollution equipment:
          Category A, B, C, D.
153.1132 Reporting spills and non-complying discharges: Category A, B,
          C, and D.

                               Maintenance

153.1500 Venting system rupture disks.
153.1502 Fixed ballast relocation.
153.1504 Inspection of personnel emergency and safety equipment.

  Subpart D_Test and Calculation Procedures for Determining Stripping
          Quantity, Clingage NLS Residue, and Total NLS Residue

153.1600 Equipment required for conducting the stripping quantity test.
153.1602 Test procedure for determining the stripping quantity.
153.1604 Determining the stripping quantity from the test results.
153.1608 Calculation of total NLS residue and clingage NLS residue.

Table 1 to Part 153--Summary of minimum requirements
Table 2 to Part 153--Cargoes not regulated under Subchapters D or O of
          this chapter when carried in bulk on non-oceangoing barges
Appendix I to Part 153 [Reserved]
Appendix II to Part 153--Metric Units Used in Part 153

    Authority: 46 U.S.C. 3703; Department of Homeland Security
Delegation No. 0170.1. Section 153.40 issued under 49 U.S.C. 5103.
Sections 153.470 through 153.491, 153.1100 through 153.1132, and
153.1600 through 153.1608 also issued under 33 U.S.C. 1903 (b).

    Source: CGD 73-96, 42 FR 49027, Sept. 26, 1977, unless otherwise
noted.

    Editorial Note: Nomenclature changes to part 153 appear by CGD-95-
072, 60 FR 50465, Sept. 29, 1995, CGD-96-041, 61 FR 50732, Sept. 27,
1996, USCG-2009-0702, 74 FR 49235, Sept. 25, 2009, and USCG-2012-0832,
77 FR 59784, Oct. 1, 2012.



                            Subpart A_General



Sec. 153.0  Availability of materials.

    (a) Various sections in this part refer to the following documents
which are incorporated in Annex II of MARPOL 73/78.
    (1) IMO Standards for Procedures and Arrangements for the Discharge
of Noxious Liquid Substances, Resolution MEPC 18(22), 1985 in effect on
April 6, 1987.
    (2) IMO International Code for the Construction and Equipment of
Ships Carrying Dangerous Chemicals in Bulk, Resolution MEPC 19(22), 1985
in effect on April 6, 1987.
    (3) IMO Code for the Construction and Equipment of Ships Carrying
Dangerous Chemicals in Bulk, Resolution MEPC 20(22), 1985 in effect on
April 6, 1987.
    (b) The IMO documents listed in this section are available from the
following:
    (1) IMO Secretariat, Publications section, 4 Albert Embankment,
London SE1 7SR, United Kingdom, Telex 23588;
    (2) New York Nautical Instrument and Service Company, 140 West
Broadway, New York, NY 10013;
    (3) Baker, Lyman & Company, 3220 South I-10 Service Road, Metairie,
LA 70001.
    (4) UNZ & Company, 190 Baldwin Avenue, Jersey City, NJ 07306.
    (5) Southwest Instrument Company, 235 West 7th Street, San Pedro, CA
90731.
    (6) Marine Education Textbooks, 124 North Van Avenue, Houma, LA
70363-5895.

[CGD 81-101, 52 FR 7777, Mar. 12, 1987, as amended by CGD 92-100, 59 FR
17028, Apr. 11, 1994]



Sec. 153.1  Applicability.

    This part applies to the following:
    (a) All United States self-propelled ships and those foreign self-
propelled ships operating in United States waters that carry in bulk a
cargo listed in

[[Page 196]]

Table 1 or allowed in a written permission under Sec. 153.900(d),
unless--
    (1) The ship is carrying the cargo under 33 CFR part 151;
    (2) The ship is carrying the cargo in a portable tank under subpart
98.30 or 98.33 of this chapter; or
    (3) The ship is an offshore supply vessel carrying the cargo under
subpart 98.31 of the chapter; or
    (b) All United States oceangoing non-self-propelled ships and those
foreign non-self-propelled ships operating in United States waters that
carry in bulk a Category A, B, or C NLS cargo listed in Table 1 or
allowed in a written permission under Sec. 153.900(d), unless--
    (1) The ship is carrying the cargo under 33 CFR part 151;
    (2) The ship is carrying the cargo in a portable tank under subpart
98.30 or 98.33 of this chapter;
    (3) The ship is an offshore supply vessel carrying the cargo under
subpart 98.31 of this chapter; or
    (4) The ship's Certificate of Inspection is endorsed for a limited
short protected coastwise route and the ship is constructed and
certificated primarily for service on an inland route.
    (c) All ships that carry a bulk liquid, liquefied gas, or compressed
gas cargo that is not--
    (1) Listed in Table 1 of this part;
    (2) Listed in Table 2 of this part;
    (3) Carried under a written permission granted under Sec.
153.900(d);
    (4) Carried under part 30 through 35, 98, 151, or 154 of this
chapter; or
    (5) Carried as an NLS under 33 CFR part 151.

[CGD 81-101, 52 FR 7777, Mar. 12, 1987, as amended by CGD 84-025, 53 FR
15844, May 4, 1988; CGD 81-101, 53 FR 28974, Aug. 1, 1988 and 54 FR
12629, Mar. 28, 1989; CGD 84-043, 55 FR 37413, Sept. 11, 19905; CGD 96-
041, 61 FR 50732, Sept. 27, 1996]



Sec. 153.2  Definitions and acronyms.

    As used in this part:
    Accommodation spaces means halls, dining rooms, lounges, lavatories,
cabins, staterooms, offices, hospitals, cinemas, game and hobby rooms,
pantries containing no cooking appliances, and similar permanently
enclosed spaces.
    Adequate reception facility means each facility certified as
adequate under 33 CFR 158.160 and each facility provided by a
Administration signatory to MARPOL 73/78 under Regulation 7 of Annex II.
    Annex II means Annex II to MARPOL 73/78 and is the Annex to MARPOL
73/78 regulating the discharge of noxious liquid substances to the sea.
    B means the breadth of the vessel and is defined in Sec. 42.13-
15(d) of this chapter.
    Built means that a ship's construction has reached any of the
following stages:
    (1) The keel is laid.
    (2) The mass of the partially assembled ship is 50,000 kg.
    (3) The mass of the partially assembled ship is one percent of the
estimated mass of the completed ship.
    Cargo area means that part of a vessel that includes the cargo
tanks, spaces adjacent to the cargo tanks and the part of the deck over
the cargo tanks and adjacent spaces.
    Cargo containment system means a cargo tank, its cargo piping
system, its venting system, and its gauging system.
    Cargo handling space means an enclosed space that must be entered
during a routine loading, carriage, or discharge of cargo and that
contains an element of the cargo containment system having a seal or
packing to prevent the escape of cargo, such as a valve, cargo pump, or
cargo vapor compressor.
    Cargo piping system means a tankship's permanently installed piping
arrangement, including any valves and pumps, that carries cargo to or
from a cargo tank.
    Cargo tank means a tank that:
    (1) Is part of or permanently affixed to a tankship; and
    (2) Carries a cargo described in part 153, table 1--SUMMARY OF
MINIMUM REQUIREMENTS in any quantity, including residual liquid or
vapor.
    Certificate of Compliance means a certificate issued by the Coast
Guard that a foreign flag vessel had been examined and found to comply
with the regulations in this chapter.
    Closed gauging system means an arrangement for gauging the amount of
cargo in a tank, such as a float and tape or a magnetically coupled
float and indicator, that does not have any

[[Page 197]]

opening through which cargo vapor or liquid can escape.
    Combustible is defined in Sec. 30.10-15 of this chapter.
    Commandant means Commandant (staff symbol), Attn: (Staff title),
U.S. Coast Guard Stop (mailing code) 2703 Martin Luther King Jr. Avenue
SE., Washington, DC 20593-(mailing code).

The term is often followed by a mailing code in parentheses. The mailing
address should include any mailing code and should be written as
follows:

Commandant (mailing code), U.S. Coast Guard, 2100 2nd Street SW., Stop
7126, Washington, DC 20593-7126.

    Control space is defined in Sec. 30.10-19a of this chapter.
    Cycle, means that the tank washing machine progresses through
complete rotations until it reaches an orientation identical to its
starting orientation.

    Note: For a typical one or two nozzle tank washing machine that
rotates in both the horizontal and vertical planes though more slowly in
one than the other, a cycle would be at least one rotation in each plane
of rotation.

    Dedicated ballast tank means a tank that is used only for ballast.
    Emergency shutdown station means a part of the tankship where the
required emergency shutdown controls are clustered.
    Flammable is defined in Sec. 30.10-22 of this chapter.
    Forward perpendicular is defined in Sec. 42.13-15(b) of this
chapter.
    Hazardous material means a liquid material or substance that is--
    (1) Flammable or combustible;
    (2) Designated a hazardous substance under section 311(b) of the
Federal Water Pollution Control Act (33 U.S.C. 1321); or
    (3) Designated a hazardous material under 49 U.S.C. 5103.

    Note: The Environmental Protection Agency designates hazardous
substances in 40 CFR Table 116.A. The Coast Guard designates hazardous
materials that are transported as bulk liquids by water in Sec. 153.40.

    High viscosity NLS includes high viscosity Category B NLS and high
viscosity Category C NLS.
    High viscosity Category B NLS means any Category B NLS having a
viscosity of at least 25 mPa.s at 20 [deg]C and at least 25 mPa.s at the
time it is unloaded.
    High viscosity Category C NLS means any Category C NLS having a
viscosity of at least 60 mPa.s at 20 [deg]C and at least 60 mPa.s at the
time it is unloaded.
    IMO means the International Maritime Organization (IMO, formerly
Inter-Governmental Maritime Consultative Organization or IMCO).
    IMO Bulk Chemical Code includes the IMO International Code for the
Construction and Equipment of Ships Carrying Dangerous Chemicals in
Bulk, Resolution MEPC 19(22), 1985 and the IMO Code for the Construction
and Equipment of Ships Carrying Dangerous Chemicals in Bulk, Resolution
MEPC 20(22), 1985.
    IMO Certificate includes a Certificate of Fitness for the Carriage
of Dangerous Chemicals in Bulk issued under the IMO Code for the
Construction and Equipment of Ships Carrying Dangerous Chemicals in
Bulk, Resolution MEPC 20(22), 1985 and an International Certificate of
Fitness for the Carriage of Dangerous Chemicals in Bulk issued under the
IMO International Code for the Construction and Equipment of Ships
Carrying Dangerous Chemicals in Bulk, Resolution MEPC 19(22), 1985.
    Independent, as applied to a cargo piping, venting, heating or
cooling system means that the system is connected to no other system,
and has no means available for connection to another system.
    Independent tank means a cargo tank that is permanently affixed to
the vessel, that is self-supporting, that incorporates no part of the
vessel's hull and that is not essential to the integrity of the hull.
    Intank cargo pump means a pump:
    (1) Located within the cargo tank it serves; and
    (2) Whose piping passes through only the top of the cargo tank.
    Integral tank means a cargo tank that also is part of or is formed
in part by the vessel's hull structure so that the tank and the hull may
be stressed by the same loads.
    IOPP Certificate means an International Oil Pollution Prevention
Certificate required under 33 CFR 151.19.

[[Page 198]]

    L means the length of the vessel and is defined in Sec. 42.13-15(a)
of this chapter.
    Liquid means each substance having a vapor pressure of 172 kPa or
less at 37.8 [deg]C.
    Marine Inspector is defined in Sec. 30.10-43 of this chapter.
    MARPOL 73/78 means the International Convention for Prevention of
Pollution from Ships, 1973 (done at London, November 2, 1973), modified
by the Protocol of 1978 relating to the International Convention for
Prevention of Pollution from Ships, 1973 (done at London, on February
17, 1978).
    Master means the person-in-charge of a self-propelled or non-self-
propelled ship.
    Mixture means a mixture containing only the substances described in
conjunction with the term.
    Nearest land has the same meaning as in 33 CFR 151.05(h).
    Noxious liquid substance (NLS) means--
    (1) Each substance listed in 33 CFR 151.47 or 33 CFR 151.49;
    (2) Each substance having an ``A,'' ``B,'' ``C,'' or ``D'' beside
its name in the column headed ``Pollution Category'' in Table 1; and
    (3) Each substance that is identified as an NLS in a written
permission issued under Sec. 153.900(c).
    NLS Certificate means an International Pollution Prevention
Certificate for the Carriage of Noxious Liquid Substances in Bulk issued
under Annex II of MARPOL 73/78.
    Oceangoing ship has the same meaning as in 33 CFR 151.05(j).
    Officer in Charge, Marine Inspection, is defined in Sec. 1.05(b) of
this chapter.
    Open gauging means an arrangement for gauging the amount of cargo in
a tank through a large opening, such as a tank hatch or ullage opening.
    Open venting system means a venting system that always allows vapor
to flow freely to and from the tank.
    Phosphoric acid means phosphoric acid, superphosphoric acid, and
aqueous solutions of phosphoric acid.
    Pressure-vacuum (PV) valve means a valve that is normally closed and
which opens under a preset positive pressure or a vacuum.
    Prewash means a tank washing operation that meets the procedure in
Sec. 153.1120.
    Pumproom means any enclosed space containing a pump that is part of
a cargo containment system.
    Reception facility means anything capable of receiving NLS residues
in a country whose Administration is not signatory to MARPOL 73/78 and
each adequate reception facility.
    Refrigerated tank means a cargo tank that is equipped to carry a
cargo that must be cooled in order to keep the cargo's vapor pressure
from exceeding the tank's pressure-vacuum or safety relief valve setting
under ambient conditions of 32 [deg]C (approx. 90 [deg]F) still water
and 46 [deg]C (approx. 115 [deg]F) still air.
    Relief valve setting means the inlet line pressure at which a vent
system's pressure-vacuum or safety relief valve fully opens.
    Residues and mixtures containing NLSs (NLS residue) means--
    (1) Any Category A, B, C, or D NLS cargo retained on the ship
because it fails to meet consignee specifications;
    (2) Any part of a Category A, B, C, or D NLS cargo remaining on the
ship after NLS is discharged to the consignee, including but not limited
to puddles on the tank bottom and in sumps, clingage in the tanks, and
substance remaining in the pipes; or
    (3) Any material contaminated with a Category A, B, C, or D NLS
cargo, including but not limited to bilge slops, ballast, hose drip pan
contents, and tank wash water.
    Restricted gauging system means a method of gauging the amount of
cargo in a tank through an opening of limited size that restricts or
prevents the release of cargo vapors from the tank vapor space.
    Safety relief (SR) valve means a normally closed valve that opens
under a preset positive pressure.
    Separate and separated, as applied to a cargo piping, venting,
heating or cooling system, means either an independent system or one
that may be disconnected from all other systems by:
    (a) Removing spool pieces or valves and blanking the open pipe ends;
or
    (b) Blocking each system interconnection with two blind flanges in

[[Page 199]]

series and providing a means of detecting leakage into the pipe section
between the flanges.
    Service spaces means spaces outside the cargo area used for galleys,
pantries containing cooking appliances, lockers, store rooms, workshops
other than those forming part of machinery spaces, and trunks to such
spaces.
    Ship means a vessel of any type whatsoever, including hydrofoils,
air-cushion vehicles, submersibles, floating craft whether self-
propelled or not, and fixed or floating platforms.
    Slop tanks include slop tanks and cargo tanks used as slop tanks.
    Solidifying NLS means a Category A, B, or C NLS that has a melting
point--
    (1) Greater than 0 [deg]C but less than 15 [deg]C and a temperature,
measured under the procedure in Sec. 153.908(d), that is less than 5
[deg]C above its melting point at the time it is unloaded; or
    (2) 15 [deg]C or greater and has a temperature, measured under the
procedure in Sec. 153.908(d), that is less than 10 [deg]C above its
melting point at the time it is unloaded.
    Solution means a water solution.
    Special area means the Baltic Sea Area as defined in 33 CFR
151.13(a)(2) and the Black Sea Area as defined in 33 CFR 151.13(a)(3).
    SR venting system means a venting system in which an SR valve
controls vapor flow from the cargo tank.
    Tankship has the same meaning as ``ship''.
    Venting system means a permanent piping arrangement leading from a
cargo tank and used to control the flow of vapor to and from the tank.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977]

    Editorial Note: For Federal Register citations affecting Sec.
153.2, see the List of CFR Sections Affected, which appears in the
Finding Aids section of the printed volume and at www.fdsys.gov.



Sec. 153.3  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



Sec. 153.4  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part
with the approval of the Director of the Federal Register in accordance
with 5 U.S.C. 552(a). To enforce any edition other than that specified
in paragraph (b) of this section, the Coast Guard must publish notice of
change in the Federal Register and make the material available to the
public. All approved material is on file at Coast Guard Headquarters.
Contact Commandant (CG-ENG), Attn: Office of Design and Engineering
Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King Jr. Avenue
SE., Washington, DC 20593-7509; or contact the National Archives and
Records Administration (NARA). For information on the availability of
this material at NARA, call 202-741-6030, or go to: http://
www.archives.gov/federal--register/code--of--federal--regulations/ibr--
locations.html. All material is available from the sources indicated in
paragraph (b) of this section.
    (b) American National Standards Institute (ANSI), 25 West 43rd
Street, 4th Floor, New York, NY 10036, http://www.ansi.org.
    (1) ANSI B16.5, Pipe Flanges and Flanged Fittings, 1988,
incorporation by reference approved for Sec. 153.940.
    (2) ANSI B16.24, Bronze Pipe Flanges and Flanged Fittings, 1979,
incorporation by reference approved for Sec. 153.940.
    (3) ANSI B16.31, Non-Ferrous Flanges, 1971, incorporation by
reference approved for Sec. 153.940.
    (c) American Society for Testing and Materials (ASTM), 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959, 877-909-2786, http://
www.astm.org.
    (1) ASTM F 1122-87 (1992), Standard Specification for Quick
Disconnect Couplings, incorporation by reference approved for Sec.
153.940.
    (2) ASTM F1271-90 (Reapproved 2012), Standard Specification for
Spill Valves

[[Page 200]]

for Use in Marine Tank Liquid Overpressure Protections Applications
(approved May 1, 2012), incorporation by reference approved for Sec.
153.365.

[CGD 88-032, 56 FR 35826, July 29, 1991, as amended by CGD 96-041, 61 FR
50732, Sept. 27, 1996; CGD 97-057, 62 FR 51048, Sept. 30, 1997; USCG-
1999-5151, 64 FR 67183, Dec. 1, 1999; 69 FR 18803, Apr. 9, 2004; USCG-
2012-0832, 77 FR 59784, Oct. 1, 2012; USCG-2012-0866, 78 FR 13251, Feb.
27, 2013; USCG-2013-0671, 78 FR 60155, Sept. 30, 2013]



Sec. 153.7  Ships built before December 27, 1977 and non-self-propelled
ships built before July 1, 1983: Application.

    (a) Definitions. (1) Permit means a Certificate of Inspection,
Letter of Compliance, or Certificate of Compliance.
    (2) Existing tankship means a tankship for which a contract was let
on or before December 27, 1977.
    (3) Letter of Compliance in this section means a letter issued by
the Coast Guard before 27 December 1977 which permitted a foreign flag
tankship to carry a bulk cargo regulated under this part.
    (b) Endorsements for existing tankships. (1) The Coast Guard
endorses the permit of an existing tankship to carry a cargo listed in
Table 1 if:
    (i) The tankship held a permit on December 27, 1977, endorsed for
the cargo in question;
    (ii) The tankship meets the construction standards under which the
Coast Guard issued the permit; and
    (iii) The tankship meets the standards in paragraph (c) of this
section.
    (2) The Coast Guard endorses the permit of an existing tankship to
carry a cargo listed in Table 1 if:
    (i) The tankship held a permit on December 27, 1977;
    (ii) The Coast Guard did not require the permit to be endorsed with
the name of the cargo at any time before December 27, 1977;
    (iii) The tankship meets the construction standards under which the
Coast Guard issued the permit;
    (iv) The tankship carried the cargo in question; and
    (v) The tankship meets the standards in paragraph (c) of this
section.
    (3) The Coast Guard endorses the permit of an existing tankship to
carry a cargo listed in Table 1 if:
    (i) The tankship held a permit on December 27, 1977 endorsed to
carry class B or C poisons under 46 CFR part 39;
    (ii) The cargo in question is a class B or C poison;
    (iii) The tankship meets the construction standards in 46 CFR part
39; and
    (iv) The tankship meets the standards in paragraph (c) of this
section.
    (4) The Commandant (CG-ENG) considers on a case by case basis
endorsing the permit of an existing tankship to carry a cargo listed in
Table 1 if:
    (i) The tankship does not come within the categories described in
paragraphs (b) (1) through (3) of this section;
    (ii) The tankship meets paragraph (c) of this section; and
    (iii) The tankship meets any additional requirements the Commandant
(CG-ENG) may prescribe.
    (c) An existing tankship must meet all the requirements of this part
except as provided in paragraphs (c) (3), (4), (5) and (6) of this
section.
    (1)-(2) [Reserved]
    (3) The Commandant (CG-ENG) considers on a case by case basis
endorsing as a type II containment system one that fails to meet
Sec. Sec. 153.231(b), 153.234, 172.130 and 172.133 of this chapter if
the tankship and containment system meet the following minimum
conditions:
    (i) The tankship has a loadline certificate.
    (ii) The cargo tank is not part of the tankship's shell plating.
    (iii) The distance between the bottom plating of the cargo tank and
the bottom shell plating of the tankship is at least 76 cm measured
parallel to the vertical axis of the tankship.
    (4) The Commandant (CG-ENG) considers on a case by case basis
endorsing a containment system as a type II containment system if:
    (i) The containment system is modified to meet Sec. 153.231(b) by
adding double bottoms or wing tanks; and
    (ii) The tankship can survive the damage described in Sec. Sec.
172.135 and 172.150 of this chapter to those parts of the tankship other
than machinery spaces.
    (5) The Commandant (CG-ENG) considers on a case by case basis
endorsing

[[Page 201]]

as a type III containment system one that does not meet Sec. Sec.
153.234, 172.130 and 172.133 of this chapter if the tankship has a load
line certificate.
    (6) The Commandant (CG-ENG) considers on a case by case basis
endorsing the tankship to carry cargoes listed in Table 1 of this part
if the tankship does not meet Sec. Sec. 153.217, 153.219 and 153.254.
    (d) Except as required by this paragraph, subpart B of this part
does not apply to a non-self-propelled ship that carries an NLS cargo
under this part if--
    (1) The ship was built before July 1, 1983;
    (2) The ship carries no NLS cargo or NLS residue at any time it is
in waters of another Administration signatory to MARPOL 73/78;
    (3) The NLS does not require a type I containment system;
    (4) The ship meets all requirements in parts 30 through 34 and part
151 of this chapter that apply to the cargo;
    (5) The ship meets the provisions in Sec. 153.216 and Sec. Sec.
153.470 through 153.491 applying to the NLS category of that cargo;
    (6) When the ``Special Requirements'' column of Table 1 contains an
entry for Sec. 153.408 or Sec. 153.409 beside the cargo name, the ship
meets the section, except the system prescribed by the section need be
capable of operation only during loading;
    (7) [Reserved]
    (8) No part of the ship's hull plating is a component of a cargo
tank if the cargo tank is endorsed to carry a cargo having a type II
containment system in Table 1.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21204, May 17, 1982; CGD 82-063b, 48 FR 4781, Feb. 3, 1983; CGD 79-023,
48 FR 51009, Nov. 4, 1983; CGD 81-052, 50 FR 8733, Mar. 5, 1985; CGD 81-
101, 52 FR 7779, Mar. 12, 1987; CGD 81-101, 53 FR 28974, Aug. 1, 1988
and 54 FR 12629, Mar. 28, 1989; CGD 95-072, 60 FR 54106, Oct. 19, 1995]



Sec. 153.8  Procedures for requesting an endorsed Certificate of Inspection.

    (a) When applying for the endorsed Certificate of Inspection that
Sec. 153.900 requires for a ship to carry a cargo listed in Table 1,
the applicant must proceed as follows:
    (1) Send a letter to one of the Coast Guard offices listed in Sec.
91.55-15 of this chapter that includes--
    (i) A request for the endorsed Certificate of Inspection;
    (ii) The name of the ship; and
    (iii) A list of the cargoes from Table 1 the applicant wishes the
endorsement to allow.
    (2) Supply to the Coast Guard when requested--
    (i) Hull type calculations;
    (ii) The plans and information listed in Sec. Sec. 54.01-18, 56.01-
10, 91.55-5 (a), (b), (d), (g), and (h), and 110.25-1 of this chapter;
    (iii) A copy of the Procedures and Arrangements Manual required by
Sec. 153.490; and
    (iv) Any other ship information, including plans, design
calculations, test results, certificates, and manufacturer's data, that
the Coast Guard needs to determine if the ship meets this part.
    (b) The Coast Guard notifies the applicant in writing--
    (1) Whether any further information is necessary to evaluate the
request for the endorsed Certificate of Inspection; and
    (2) Of the outcome of the request for the endorsed Certificate of
Inspection.
    (c) The Coast Guard returns the Procedures and Arrangements Manual
stamped ``Approved'' or indicating what corrections are necessary.

    Note: The procedures for requesting an IOPP Certificate are found in
33 CFR Part 151.

[CGD 81-101, 52 FR 7779, Mar. 12, 1987]



Sec. 153.9  Foreign flag vessel endorsement application.

    (a) Application for a vessel whose flag administration is signatory
to MARPOL 73/78 and issues IMO Certificates. A person who desires a
Certificate of Compliance endorsed to carry a cargo in table 1 of this
part, as described in Sec. 153.900 of this part, must request the
endorsement from the cognizant Officer in Charge, Marine Inspection and
have aboard the vessel copies of IMO Certificates issued by the vessel's
administration and--
    (1) An additional classification society statement that the vessel
complies with Sec. 153.530 (b), (d), and (p)(1) if a person desires a
Certificate of Compliance

[[Page 202]]

endorsed with the name of an alkylene oxide; and
    (2) An additional classification society statement that the vessel
complies with Sec. Sec. 153.370, 153.371, and 153.438 if a person
desires a Certificate of Compliance endorsed with the name of a cargo
whose vapor pressure exceeds 100 kPa absolute at 37.8 [deg]C
(approximately 14.7 psia at 100 [deg]F).
    (b) Application for a vessel whose flag administration does not
issue IMO Certificates. A person who desires a Certificate of Compliance
endorsed with the name of a cargo in Table 1 of this part, as described
in Sec. 153.900, must submit an application, in a written or electronic
format, to Commanding Officer (MSC), Attn: Marine Safety Center, U.S.
Coast Guard Stop 7410, 4200 Wilson Boulevard Suite 400, Arlington, VA
20598-7410, that includes the following information:
    (1) A copy of the vessel's Cargo Ship Safety Construction
Certificate and Cargo Ship Safety Equipment Certificate issued under the
International Convention for Safety of Life at Sea, 1974.
    (2) A list of those cargoes for which the Letter of Compliance is to
be endorsed.
    (3) The specific tanks that are to be endorsed for each cargo.
    (4) The names of the U.S. ports in which the person anticipates
operating the vessel.
    (5) The name of the vessel's flag administration.
    (6) The name of the society that classes the vessel.
    (7) A brief description of the vessel's cargo containment systems.
    (8) Hull type calculations.
    (9) The plans and information listed in Sec. Sec. 54.01-18, 56.01-
10, 91.55-5 (a), (b), (d), (g), and (h), and 111.05-5(d) of this
chapter.
    (c) Conditions applying to all Certificate of Compliance
applications. (1) If requested by the Commanding Officer, U.S. Coast
Guard Marine Safety Center, a person desiring a Certificate of
Compliance for a vessel must furnish any other vessel information such
as plans, design calculations, test results, certificates, and
manufacturer's data, that the Coast Guard needs to determine that the
vessel meets the standards of this part.
    (2) Correspondence with the Coast Guard and vessel information
submitted under this part must be in English except IMO Certificates
which may be in French.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977]

    Editorial Note: For Federal Register citations affecting Sec.
153.9, see the List of CFR Sections Affected, which appears in the
Finding Aids section of the printed volume and at www.fdsys.gov.



Sec. 153.10  Procedures for requesting alternatives and waivers;
termination of waivers.

    (a) The Coast Guard considers allowing the use of an alternative in
place of a requirement in this part if--
    (1) The person wishing to use the alternative sends a written
application to the Commandant (CG-ENG) explaining--
    (i) The requirement in this part that would not be met and the
reason why;
    (ii) The alternative the person proposes to be substituted; and
    (iii) How the alternative would ensure a level of safety and
pollution protection at least equal to that of the requirement for which
the alternative would substitute;
    (2) The alternative does not substitute an operational standard for
a design or equipment standard; and
    (3) The Commandant (CG-ENG) determines that the alternative provides
a level of protection for purposes of safety and pollution at least
equal to the requirement in this part.
    (b) The Coast Guard considers granting a waiver of a requirement for
which this part allows a waiver if the person wishing the waiver sends a
written application to the Commandant (CG-ENG) that includes--
    (1) A citation of the regulation that allows the waiver; and
    (2) Any information and pledges that the regulation requires to be
submitted with the application for the waiver.
    (c) The Commandant notifies the applicant in writing--
    (1) Whether any further information is necessary to evaluate the
request for an alternative or waiver; and
    (2) Of the outcome of the request for an alternative or waiver.

[[Page 203]]

    (d) A waiver issued under this part terminates if any--
    (1) Information required to be supplied with the application for the
waiver changes;
    (2) Pledges required to be supplied with the application for the
waiver are repudiated;
    (3) Restrictions or procedures applying to operations under the
waiver are violated; or
    (4) Requirements in the section of this part authorizing the waiver
are violated.

[CGD 81-101, 52 FR 7780, Mar. 12, 1987]



Sec. 153.12  IMO Certificates for United States Ships.

    Either a classification society authorized under 46 CFR part 8, or
the Officer in Charge, Marine Inspection, issues a United States ship an
IMO Certificate endorsed to allow the carriage of a hazardous material
or NLS cargo in table 1 of this part if the following requirements are
met:
    (a) The ship's owner must make a request to the OCMI for the IMO
Certificate.
    (b) The ship must meet this part.
    (c) Self-propelled ships contracted for after November 1, 1973 but
built before December 28, 1977 must meet requirements in this part that
apply to a self-propelled ship built on December 28, 1977.
    (d) Non-self-propelled ships contracted for after November 1, 1973
but built before July 1, 1983 must meet the requirements in this part
applying to non-self-propelled ships built on July 1, 1983.

[CGD 81-101, 52 FR 7780, Mar. 12, 1987, as amended by CGD 95-010, 62 FR
67537, Dec. 24, 1997]



Sec. 153.15  Conditions under which the Coast Guard issues a Certificate
of Inspection or Certificate of Compliance.

    (a) The Coast Guard issues the endorsed Certificate of Inspection
required under Sec. 153.900 for a United States ship to carry a
hazardous material or NLS listed in Table 1 if--
    (1) The person wishing the Certificate of Inspection applies
following the procedures under Sec. 153.8; and
    (2) The ship meets the design and equipment requirements of this
part and--
    (i) Subchapter D of this chapter if the hazardous material or NLS is
flammable or combustible; or
    (ii) Either Subchapter D or I of this chapter, at the option of the
ship owner, if the hazardous material or NLS is non-flammable or non-
combustible.
    (b) The Coast Guard issues the endorsed Certificate of Compliance
required under Sec. 153.900 for a foreign ship to carry a hazardous
material or NLS listed in Table 1 if--
    (1) The person wishing the Certificate of Compliance follows the
procedures under Sec. 153.9;
    (2) The ship has an IMO Certificate issued by its Administration and
endorsed with the name of the hazardous material or NLS if the ship's
Administration is signatory to MARPOL 73/78;
    (3) The ship meets the requirements of this part applying to United
States ships and Sec. 30.01-5(e) of this chapter if the ship's
Administration is not signatory to MARPOL 73/78; and
    (4) The ship meets any additional design and equipment requirements
specified by the Commandant (CG-ENG).

[CGD 81-101, 52 FR 7780, Mar. 12, 1987]



Sec. 153.16  Requirements for foreign flag vessel permits.

    To have its Certificate of Compliance endorsed to carry a cargo
listed in Table 1, a foreign flag vessel must:
    (a) Have an IMO Certificate, if the flag administration issues IMO
Certificates, endorsed with the name of the cargo and meet any specific
requirements in this subpart that the Commandant (CG-ENG) may prescribe;
or
    (b) Meet the requirements of this subpart and Sec. 30.01-5(e) of
this chapter.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983; CGD 81-052, 50 FR 8733, Mar. 5, 1985; CGD 81-101,
52 FR 7780, Mar. 12, 1987; CGD 95-027, 61 FR 26008, May 23, 1996]



Sec. 153.30  Special area endorsement.

    The Coast Guard endorses the Certificate of Inspection of a United
States ship allowing it to operate in special areas if the ship owner--

[[Page 204]]

    (a) Requests the endorsement following the procedures in Sec.
153.8;
    (b) Shows that the ship meets the design and equipment requirements
applying to ships operating in special areas contained in Regulations 5,
5A, and 8 of Annex II and the Standards for Procedures and Arrangements.

[CGD 81-101, 52 FR 7780, Mar. 12, 1987]



Sec. 153.40  Determination of materials that are hazardous.

    Under the authority delegated by the Secretary of Transportation in
49 CFR 1.46(t) to carry out the functions under 49 U.S.C. 1803, the
Coast Guard has found the following materials to be hazardous when
transported in bulk:
    (a) Materials listed in Table 30.25-1 of this chapter.
    (b) Materials listed in Table 151.05.
    (c) Materials listed in Table 1. \1\
---------------------------------------------------------------------------

    \1\ Those hazardous material cargoes designated Category A, B, C, or
D in Table 1 are also Noxious Liquid Substances under Annex II and the
Act to Prevent Pollution from Ships, 33 U.S.C. 1901 et seq.
---------------------------------------------------------------------------

    (d) Materials listed in Table 4 of Part 154.
    (e) Materials that are NLSs under MARPOL Annex II.
    (f) Liquids, liquefied gases, and compressed gases, that are--
    (1) Listed in 49 CFR 172.101;
    (2) Listed in 49 CFR 172.102; or
    (3) Listed or within any of the definitions in subparts C through O
of 49 CFR part 173.
    (g) Those liquid, liquefied gas, and compressed gas materials
designated as hazardous in the permissions granted under Sec.
153.900(c). \2\
---------------------------------------------------------------------------

    \2\ The Coast Guard continues to propose in the Federal Register any
addition of these designated hazardous materials to one of the tables
referred to in paragraphs (a) through (d).

[CGD 81-101, 52 FR 7780, Mar. 12, 1987]



                     Subpart B_Design and Equipment

                       General Vessel Requirements



Sec. 153.190  Stability requirements.

    Each vessel must meet the applicable requirements in Subchapter S of
this chapter.

[CGD 79-023, 48 FR 51009, Nov. 4, 1983. Redesignated by CGD 81-101, 52
FR 7780, Mar. 12, 1987]



Sec. 153.201  Openings to accommodation, service or control spaces.

    (a) Except as allowed in paragraph (b) of this section, entrances,
ventilation intakes and exhausts, and other openings to accommodation,
service, or control spaces must be located aft of the house bulkhead
facing the cargo area a distance at least equal to the following:
    (1) 3 m (approx. 10 ft) if the vessel length is less than 75 meters
(approx. 246 ft).
    (2) L/25 if the vessel length is between 75 and 125 meters (approx.
246 ft and 410 ft).
    (3) 5 m (approx. 16.5 ft) if the vessel length is more than 125
meters (approx. 410 ft).
    (b) Fixed port lights, wheelhouse doors, and windows need not meet
the location requirements specified in paragraph (a) of this section if
they do not leak when tested with a fire hose at 207 kPa gauge (30
psig).

[CGD 81-078, 50 FR 21173, May 22, 1985]



Sec. 153.208  Ballast equipment.

    (a) Except for the arrangement described in paragraph (b) of this
section no piping that serves a dedicated ballast tank that is adjacent
to a cargo tank may enter an engine room or accommodation space.
    (b) Piping used only to fill a dedicated ballast tank adjacent to a
cargo tank may enter an engine room or accommodation space if the piping
has a valve or valving arrangement:
    (1) Within the part of the tankship where a containment system may
be located under Sec. 153.234;
    (2) That allows liquid to flow only towards that ballast tank (such
as a check valve); and

[[Page 205]]

    (3) That enables a person to shut off the fill line from the
weatherdeck (such as a stop valve).
    (c) Except as prescribed in paragraph (d) of this section, pumps,
piping, vent lines, overflow tubes and sounding tubes serving dedicated
ballast tanks must not be located within a cargo containment system.
    (d) Each vent line, overflow tube and sounding tube that serves a
dedicated ballast tank and that is located within a cargo containment
system must meet Sec. 32.60-10(e)(2) of this chapter.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21207, May 17, 1982]



Sec. 153.209  Bilge pumping systems.

    Bilge pumping systems for cargo pumprooms, slop tanks, and void
spaces separated from cargo tanks by only a single bulkhead must be
entirely within the locations allowed containment systems in Sec.
153.234.



Sec. 153.214  Personnel emergency and safety equipment.

    Each self-propelled ship must have the following:
    (a) Two stretchers or wire baskets complete with equipment for
lifting an injured person from a pumproom or a cargo tank.
    (b) In addition to any similar equipment required by Subchapter D of
this chapter, three each of the following:
    (1) A 30 minute self-contained breathing apparatus of the pressure
demand type, approved by the Mining Safety and Health Administration
(formerly the Mining Enforcement and Safety Administration) and the
National Institute for Occupational Safety and Health, or the tankship's
flag administration with five refill tanks or cartridges of 30 minutes
capacity each.
    (2) A set of overalls or large apron, boots, long sleeved gloves,
and goggles, each made of materials resistant to the cargoes in Table 1
that are endorsed on the Certificate of Inspection or Certificate of
Compliance.
    (3) A steel-cored lifeline with harness.
    (4) An explosion-proof lamp.
    (c) First aid equipment.

[GCD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 77-222, 43 FR
57256, Dec. 7, 1978; CGD 78-128, 47 FR 21207, May 17, 1982; CGD 81-052,
50 FR 8733, Mar. 5, 1985; CGD 81-101, 52 FR 7781, Mar. 12, 1987]



Sec. 153.215  Safety equipment lockers.

    Each self-propelled ship must have the following:
    (a) Each tankship must have at least two safety equipment lockers.
    (b) One safety equipment locker must be adjacent to the emergency
shutdown station required by Sec. 153.296(b). This locker must contain
one set of the equipment required by Sec. 153.214(a) and two sets of
that required by Sec. 153.214(b).
    (c) The second safety equipment locker must be adjacent to the
second emergency shutdown station required by Sec. 153.296. This locker
must contain the remaining equipment required by Sec. 153.214 (a) and
(b).
    (d) Each safety equipment locker must be marked as described in
Sec. 153.955 (c), (d), and (e) with the legend ``SAFETY EQUIPMENT.''

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21207, May 17, 1982; CGD 81-101, 52 FR 7781, Mar. 12, 1987]



Sec. 153.216  Shower and eyewash fountains.

    (a) Each non-self-propelled ship must have a fixed or portable
shower and eyewash fountain that operates during cargo transfer and
meets paragraph (c) of this section.
    (b) Each self-propelled ship must have a shower and eyewash fountain
that operates at all times and meets paragraph (c) of this section.
    (c) The shower and eyewash fountains required by paragraphs (a) and
(b) of this section must--
    (1) Operate in any ambient temperature;
    (2) Dispense water at a temperature between 0 [deg]C and 40 [deg]C
(approx. 32 [deg]F and 104 [deg]F);
    (3) Be located on the weatherdeck; and
    (4) Be marked ``EMERGENCY SHOWER'' as described in Sec. 153.955
(c), (d), and (e), so that the marking is visible from work areas in the
part of the deck

[[Page 206]]

where the cargo containment systems are located.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987]



Sec. 153.217  Access to enclosed spaces and dedicated ballast tanks.

    An access opening to an enclosed space or a dedicated ballast tank
must meet the requirements for a cargo tank access in Sec. 153.254 (b),
(c), and (d) if:
    (a) The enclosed space or dedicated ballast tank is located within
the cargo area of the vessel; or
    (b) A part of a cargo containment system lies within the enclosed
space or dedicated ballast tank.

[CGD 78-128, 47 FR 21207, May 17, 1982]



Sec. 153.219  Access to double bottom tanks serving as dedicated ballast
tanks.

    (a) Except as prescribed in paragraph (b) of this section, access
openings to double bottom tanks serving as dedicated ballast tanks must
not be located within a cargo containment system.
    (b) Each access opening to a double bottom tank that is a dedicated
ballast tank and that is located within a cargo containment system must
be:
    (1) Enclosed in an access trunk extending to the weatherdeck;
    (2) Separated from the cargo containment system by two manhole
coverings; or
    (3) Approved by the Commandant (CG-ENG).

[CGD 78-128, 47 FR 21207, May 17, 1982, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                        Cargo Containment Systems



Sec. 153.230  Type I system.

    A type I containment system must meet the following requirements:
    (a) The vessel must meet the requirements in subpart F of part 172
of this chapter for a type I hull.
    (b) Except as described in Sec. 153.235:
    (1) It may be no closer to the tankship's shell than 76 cm (approx.
29.9 in.); and
    (2) It may not be located in any part of the tankship subject to the
damage described in Table 172.135 of this chapter for:
    (i) Collision Penetration, Transverse extent; and
    (ii) Grounding Penetration, Vertical extents from the baseline
upward.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 79-023, 48 FR
51009, Nov. 4, 1983]



Sec. 153.231  Type II system.

    A type II containment system must meet the following requirements:
    (a) The vessel must meet the requirements in subpart F of part 172
of this chapter for a type I or II hull.
    (b) Except as allowed in Sec. Sec. 153.7 and 153.235--
    (1) It may be no closer to the tankship's shell than 76 cm (approx.
29.9 in.); and
    (2) It may not be located in any part of the tankship subject to the
damage described in Table 172.135 of this chapter for Grounding
Penetration, Vertical extent from the baseline upward.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 79-023, 48 FR
51009, Nov. 4, 1983; CGD 81-101, 52 FR 7781, Mar. 12, 1987]



Sec. 153.232  Type III system.

    A type III containment system must be in either a type I, II, or III
hull. The requirements for type I, II, and III hulls are in subpart F of
part 172 of this chapter.

[CGD 79-023, 48 FR 51009, Nov. 4, 1983]



Sec. 153.233  Separation of tanks from machinery, service and other
spaces.

    (a) To prevent leakage through a single weld failure, the following
spaces must be separated from a cargo by two walls, two bulkheads, or a
bulkhead and a deck not meeting in a cruciform joint:
    (1) Machinery spaces.
    (2) Service spaces.
    (3) Accommodation spaces.
    (4) Spaces for storing potable domestic, or feed water.
    (5) Spaces for storing edibles.
    (b) Some examples of arrangements that may separate cargo from the
spaces listed in paragraph (a) of this section are the following:
    (1) Dedicated ballast tanks.
    (2) Cargo pumprooms.

[[Page 207]]

    (3) Ballast pumprooms.
    (4) Tanks not carrying a cargo listed in this part. \3\
---------------------------------------------------------------------------

    \3\ See also Sec. Sec. 32.56-5 and 32.60-10 of this chapter for
limitations on the stowage of combustible liquids adjacent to ignition
sources.
---------------------------------------------------------------------------

    (5) A cofferdam aft of the cargo containment systems and whose
forward bulkhead is forward of any joint common to an accommodations
space and the deck.
    (6) Double walled piping or a piping tunnel.



Sec. 153.234  Fore and aft location.

    Except as allowed in Sec. 153.7, each ship must meet the following:
    (a) Each cargo containment system and any compartments within which
a containment system is located must be forward of a tankship's
accommodation spaces.
    (b) Except as described in Sec. 153.235, each cargo containment
system must be located at least 0.05L aft of the forward perpendicular,
but in no case forward of a collision bulkhead.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 81-101, 52 FR
7781, Mar. 12, 1987]



Sec. 153.235  Exceptions to cargo piping location restrictions.

    Cargo piping must not be located in those areas from which a
containment system is excluded by Sec. Sec. 153.230(b), 153.231(b), and
153.234(b) unless the cargo piping:
    (a) Drains back to the cargo tank under any heel or trim resulting
from the damage specified in Sec. 172.135 of this chapter; and
    (b) Enters the cargo tank above the liquid level for a full tank in
any condition of heel or trim resulting from the damage specified in
Sec. 172.135 of this chapter.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 79-023, 48 FR
51009, Nov. 4, 1983]



Sec. 153.236  Prohibited materials.

    When one of the following paragraphs of this section is referenced
in Table 1, the materials listed in that paragraph may not be used in
components that contact the cargo liquid or vapor:
    (a) Aluminum or aluminum alloys.
    (b) Copper or copper alloys.
    (c) Zinc, galvanized steel or alloys having more than 10 percent
zinc by weight.
    (d) Magnesium.
    (e) Lead.
    (f) Silver or silver alloys.
    (g) Mercury.



Sec. 153.238  Required materials.

    When one of the following paragraphs of this section is referenced
in Table 1, only those materials listed in that paragraph may be used in
components that contact the cargo liquid or vapor:
    (a) Aluminum, stainless steel, or steel covered with a protective
lining or coating.
    (b) With cargo concentrations of 98 percent or greater, aluminum or
stainless steel.
    (c) With cargo concentrations of less than 98 percent, 304L or 316
stainless steel.
    (d) Solid austenitic stainless steel.
    (e) Stainless steel or steel covered with a suitable protective
lining or coating. (See Sec. 153.266.)

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 88-100, 54 FR
40041, Sept. 29, 1989]



Sec. 153.239  Use of cast iron.

    (a) Cast iron used in a cargo containment system must meet the
requirements of Sec. 56.60-10(b) of this chapter.
    (b) For purposes of this section, the term ``lethal products'' in
Sec. 56.60-10(b) means those cargoes that Table 1 references to Sec.
153.525 or Sec. 153.527.

[CGD 78-128, 47 FR 21207, May 17, 1982]



Sec. 153.240  Insulation.

    Cargo containment system insulation made necessary by the
requirements of this part must meet the requirements in Sec. 38.05-20
of this chapter. However, the vapor barrier required by Sec. 38.05-
20(b) is unnecessary if the insulation is:
    (a) Protected from the weather, and attached to a containment system
maintained at a temperature in excess of 46 [deg]C (approx. 115 [deg]F);
or

[[Page 208]]

    (b) In an atmosphere whose dew point is less than the temperature of
any surface in contact with the insulation.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by USCG-2014-0688,
79 FR 58284, Sept. 29, 2014]

                               Cargo Tanks



Sec. 153.250  Double-bottom and deep tanks as cargo tanks.

    Except in those cases in which Commandant (CG-ENG) specifically
approves another arrangement, such as a double-bottom or deep tank as a
cargo tank, an integral cargo tank or the hold within which an
independent cargo tank is located must extend to the weatherdeck.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983]



Sec. 153.251  Independent cargo tanks.

    All independent cargo tank must meet Sec. 38.05-10 (a)(1), (b),
(d), and (e)(1) of this chapter.

[CGD 78-128, 47 FR 21208, May 17, 1982]



Sec. 153.252  Special requirement for an independent cargo tank.

    When Table 1 refers to this section, the cargo tank must be an
independent tank that meets Sec. Sec. 38.05-2(d) and 38.05-4(g) of this
chapter. (See also Sec. 153.256(b)).

[CGD 78-128, 47 FR 21208, May 17, 1982]



Sec. 153.254  Cargo tank access.

    (a) A cargo tank must have at least one covered manhole opening into
the vapor space described in Sec. 153.354.
    (b) An access through a vertical cargo tank surface must be at least
60 cm by 80 cm (approx. 23.6 x 31.5 in.) and no more than 60 cm above a
foothold grating, or surface on both sides of the access way.
    (c) An access through a horizontal cargo tank surface must be at
least 60 cm by 60 cm (approx. 23.6 x 23.6 in.).
    (d) An access trunk must be no less than 76 cm (approx. 29.9 in.) in
diameter.



Sec. 153.256  Trunks, domes, and openings of cargo tanks.

    (a) The hatch of a cargo tank must:
    (1) Be at the highest point of the tank; and
    (2) Open on or above the weatherdeck.
    (b) To be endorsed to carry a cargo requiring an independent cargo
tank, a tank must have:
    (1) A trunk or dome at the uppermost part of the tank, extending
above the weatherdeck;
    (2) Its hatch at the top of the trunk or dome; and
    (3) No openings below the weatherdeck.



Sec. 153.266  Tank linings.

    A tank lining must be:
    (a) At least as elastic as the tank material; and
    (b) Applied or attached to the tank as recommended by the lining
manufacturer.

               Piping Systems and Cargo Handling Equipment



Sec. 153.280  Piping system design.

    (a) Each cargo piping system must meet the standards of Part 56 and
Sec. Sec. 38.10-1(b), 38.10-1(e), and 38.10-10(a) of this chapter.
    (b) Piping carrying cargo or cargo residue may not enter any
machinery space except a cargo pumproom.



Sec. 153.281  Piping to independent tanks.

    Piping for an independent cargo tank must penetrate the tank only
through that part of the tank or dome extending above the weatherdeck.

[CGD 78-128, 47 FR 21208, May 17, 1982]



Sec. 153.282  Cargo filling lines.

    The discharge point of a cargo tank filling line must be no higher
above the bottom of the cargo tank or sump than 10 cm (approx. 4 in.) or
the radius of the filling line, whichever is greater.



Sec. 153.283  Valving for cargo piping.

    (a) Except as described in this section, a cargo line must have a
deck operable, manual stop valve:
    (1) In each tank which the line serves; and
    (2) At each cargo hose connection point.
    (b) The valve required by paragraph (a)(1) of this section may be in
a cargo

[[Page 209]]

pumproom at the pumproom bulkhead if the cargo tank the cargo line
serves is adjacent to the pumproom.
    (c) The valve required by paragraph (a)(1) of this section may be on
the weatherdeck if:
    (1) The weatherdeck is the top of the tank;
    (2) The line goes through the weatherdeck into the tank; and
    (3) The valve is at the point where the line penetrates the
weatherdeck.
    (d) The valve required by paragraph (a)(1) of this section may be
outside the tank if:
    (1) The tank is an independent tank; and
    (2) The valve is at the point where the line penetrates the tank.
    (e) The discharge line of an intank cargo pump need not have the
valve required by paragraph (a)(1) of this section.
    (f) If the cargo exerts a gravity head pressure on a valve required
by this section, the valve must be a positive shutoff valve that meets
Sec. 56.50-60(d) of this chapter.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21208, May 17, 1982]



Sec. 153.284  Characteristics of required quick closing valves.

    A remotely actuated quick closing shutoff valve required by Sec.
153.530(n) must:
    (a) Be a positive shutoff valve;
    (b) Be of the fail-closed type that closes on loss of power;
    (c) Be capable of local manual closing;
    (d) Close from the time of actuation in 30 seconds or less; and
    (e) Be equipped with a fusible element that melts at less than 104
[deg]C (approx. 220 [deg]F) and closes the valve.

[CGD 78-128, 47 FR 21208, May 17, 1982; 47 FR 27293, June 24, 1982]



Sec. 153.285  Valving for cargo pump manifolds.

    (a) When cargo lines serving different tanks enter a pumproom and
connect to the same pump:
    (1) Each cargo line must have a stop valve within the line;
    (2) The valve must be before the cargo line joins the other lines or
pump; and
    (3) The valve must be within the pumproom.
    (b) The valve in paragraph (a) of this section is required in
addition to any valve required under Sec. 153.283(b).



Sec. 153.292  Separation of piping systems.

    Cargo piping systems must be arranged so that operations necessary
to provide separate systems can be accomplished in a cargo handling
space or on the weatherdeck.

[CGD 78-128, 47 FR 21208, May 17, 1982]



Sec. 153.294  Marking of piping systems.

    (a) Each cargo piping system must be marked with the designation
number of the cargo tank it serves at each hose connection, valve, and
blind in the piping system. The markings must be in characters at least
5 cm (approx. 2 in.) high.
    (b) Every hose connection of a cargo piping system must be marked
with the cargo piping system's working pressure required by Sec. 38.10-
10(a) of this chapter. \4\
---------------------------------------------------------------------------

    \4\ See Sec. 153.280 of the part.
---------------------------------------------------------------------------



Sec. 153.296  Emergency shutdown stations.

    (a) Each tankship must have at least two emergency shutdown
stations.
    (b) One emergency shutdown station must be located forward of the
deckhouse, in the after part of the weatherdeck in which the cargo tanks
are located.
    (c) A second emergency shutdown station must be located so that one
of the two stations is accessible from any part of the weatherdeck if a
break in a cargo piping system or hose causes spraying or leaking.
    (d) Each emergency shutdown station must contain a single remote
actuator for all quick closing shutoff valves required by this part.
    (e) Each emergency shutdown station must have the controls necessary
to stop all cargo pumps on the tankship.
    (f) Any remote emergency actuator, such as that for a quick closing
shut-off valve, a cargo pump, or a water spray system, must be of a type
that

[[Page 210]]

will not defeat the operation of other remote emergency actuators. The
emergency action must occur whether one or several actuators are
operated.
    (g) Each emergency shutdown station must be marked as described in
Sec. 153.955 (c), (d), and (e) with the legend ``EMERGENCY SHUTDOWN
STATION'' so that the legend is visible from work areas in the part of
the deck where the cargo containment systems are located.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21208, May 17, 1982]



Sec. 153.297  Emergency actuators at the point of cargo control.

    (a) The point from which cargo transfer is controlled must have the
same actuators an emergency shutdown station must have under Sec.
153.296 and an actuator for any deck water spray systems required by
this part.
    (b) The point from which cargo transfer is controlled may be one of
the emergency shutdown stations required under Sec. 153.296 if it meets
the requirements of that section.

                    Cargo Handling Space Ventilation



Sec. 153.310  Ventilation system type.

    A cargo handling space must have a permanent forced ventilation
system of the exhaust type.



Sec. 153.312  Ventilation system standards.

    A cargo handling space ventilation system must meet the following:
    (a) A ventilation system exhaust duct must discharge no less than 10
m (approx. 32.8 ft) from openings into or ventilation intakes for,
accommodation or service spaces.
    (b) A ventilation system must not recycle vapors from ventilation
discharges.
    (c) Except for the space served by the ventilation duct, a
ventilation duct must not pass through a machinery room, an
accommodation space, or working spaces.
    (d) A ventilation system must be operable from outside the space it
ventilates.
    (e) A ventilation system must be sized to change the air in the
ventilated space at least 30 times per hour.
    (f) A ventilation system must not allow air to stagnate in any part
of a ventilated space.
    (g) A ventilation system must be able to exhaust air from both above
and below the deck plates of a ventilated space.



Sec. 153.314  Ventilation of spaces not usually occupied.

    (a) Each tankship must have portable ventilation equipment that fits
the mount required in paragraph (b)(1) of this section.
    (b) Each enclosed space within the cargo area that does not have a
permanent ventilation system meeting Sec. 153.312 must have:
    (1) A mount for the portable mechanical ventilation equipment
required by this section; and
    (2) Either permanent ventilation ductwork connected to the mount and
arranged to supply air to the extremities of the space; or
    (3) An attachment for temporary ductwork at the mount with enough
ductway in the ventilated space and temporary ductwork stowed aboard the
vessel to supply air to the extremities of the space.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21208, May 17, 1982]



Sec. 153.316  Special cargo pumproom ventilation rate.

    When Table 1 refers to this section, the cargo pumproom ventilation
system must change the air in the cargo pumproom 45 times per hour and
discharge no less than 4 m (approx. 13.1 ft) above the deck.

                             Cargo Pumprooms



Sec. 153.330  Access.

    (a) The access door to a cargo pump-room must open on the
weatherdeck.
    (b) The access way to a cargo pump-room and its valving must allow
passage of a man wearing the breathing apparatus required by Sec.
153.214(b)(1).
    (c) Each ladderway in a cargo pump-room must be free from
obstructions by piping, framework, or other equipment.
    (d) Cargo pumproom ladders and platforms must have guard railings.

[[Page 211]]

    (e) Each ladder to a cargo pump-room must have an incline from the
horizontal of less than 60[deg].

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by USCG-2014-0688,
79 FR 58284, Sept. 29, 2014]



Sec. 153.332  Hoisting arrangement.

    (a) A cargo pumproom located below the weatherdeck must have a
permanent hoisting arrangement with a lifting capacity of 2500 N
(approx. 562 lbs), operable from the weatherdeck, for the removal of an
unconscious person.
    (b) The cargo pumproom must have a 60 cm by 60 cm (approx. 2 ft by 2
ft) cross-sectional clearance through the hoistway.



Sec. 153.333  Cargo pump discharge pressure gauge.

    Each cargo pump within a pump-room must have a discharge pressure
gauge outside the pumproom.



Sec. 153.334  Bilge pumping systems.

    (a) A cargo pumproom must have a bilge pumping system.
    (b) The bilge pumping system must have:
    (1) Complete remote operating controls outside the cargo pumproom;
and
    (2) An alarm that operates when the depth of liquid in the bilges
exceeds 50 cm (approx. 19.7 in.).



Sec. 153.336  Special cargo pump or pumproom requirements.

    (a) When Table 1 refers to this section:
    (1) The cargo pump must be an intank cargo pump;
    (2) The cargo pumproom must be on or above the weatherdeck; or
    (3) The cargo pumproom must have the specific approval of the
Commandant (CG-ENG).
    (b) For a cargo pumproom described in paragraph (a)(2) or (a)(3) the
tankship must:
    (1) Have a low pressure breathing quality air supply system for use
with the breathing apparatus in the pumproom; or
    (2) Meet any requirements specified by the Commandant (CG-522).
    (c) A low pressure air supply system described in paragraph (b)(1)
of this section must:
    (1) Run from fixed air bottles to the pumproom;
    (2) Have an air compressor to recharge the fixed air bottles;
    (3) have hose connections in the pumproom suitable for use with the
breathing apparatus required in Sec. 153.214(b)(1); and
    (4) have the air capacity to enable two men to work in the pumproom
for at least one hour each without using the cartridges for the
breathing apparatus required in Sec. 153.214(b)(1).

[CGD 78-128, 47 FR 21208, May 17, 1982, as amended by CGD 82-063b, 48 FR
4781, Feb. 3, 1983]

                          Cargo Venting Systems



Sec. 153.350  Location of B/3 vent discharges.

    Except as prescribed in Sec. 153.353, a

B/3 venting system must discharge:
    (a) At the highest of the following points:
    (1) 6m (approx. 19.7 ft) above the weatherdeck.
    (2) B/3 above the weatherdeck.
    (3) 6m (approx. 19.7 ft) above a walkway, if the walkway is within a
6m (approx. 19.7 ft) horizontal radius from the vent discharge.
    (b) At least 15m (approx. 49.2 ft) from air intakes for, or openings
into, accommodation and service spaces.

[CGD 78-128, 47 FR 21208, May 17, 1982; 47 FR 27293, June 24, 1982]



Sec. 153.351  Location of 4m vent discharges.

    Except as prescribed in Sec. 153.353, a 4m venting system must
discharge:
    (a) At least 4m (approx. 13.1 ft) above the higher of:
    (1) the weatherdeck; or
    (2) any walkway that is within a 4m (approx. 13.1 ft) horizontal
radius from the vent discharge.
    (b) At least 10m (approx. 32.8 ft) from air intakes for, or openings
into, accommodation or service spaces.

[CGD 78-128, 47 FR 21208, May 17, 1982]



Sec. 153.352  B/3 and 4 m venting system outlets.

    A B/3 or 4 m venting system outlet must:
    (a) Discharge vertically upwards; and

[[Page 212]]

    (b) Prevent precipitation from entering the vent system.



Sec. 153.353  High velocity vents.

    The discharge point of a B/3 or 4m venting system must be located at
least 3m (approx. 10 ft) above the weatherdeck or walkway if:
    (a) The discharge is a vertical, unimpeded jet;
    (b) The jet has a minimum exit velocity of 30 m/sec (approx. 98.4
ft/sec); and
    (c) The high velocity vent has been approved by Commandant (CG-ENG).

[CGD 78-128, 47 FR 21208, May 17, 1982, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 153.354  Venting system inlet.

    A venting system must terminate in the vapor space above the cargo
when the tank is filled to a 2 percent ullage and the tankship has no
heel or trim.



Sec. 153.355  PV venting systems.

    When Table 1 requires a PV venting system, the cargo tank must have
a PV valve in its vent line. The PV valve must be located between the
tank and any connection to another tank's vent line (such as a vent
riser common to two or more tanks).



Sec. 153.358  Venting system flow capacity.

    (a) The cross-sectional flow area of any vent system segment,
including any PV or SR valve, must at no point be less than that of a
pipe whose inside diameter is 6.4 cm (approx. 2.5 in.).
    (b) When Table 1 requires a closed or restricted gauging system,
calculations must show that, under conditions in which a saturated cargo
vapor is discharged through the venting system at the maximum
anticipated loading rate, the pressure differential between the cargo
tank vapor space and the atmosphere does not exceed 28 kPa gauge
(approx. 4 psig), or, for independent tanks, the maximum working
pressure of the tank.



Sec. 153.360  Venting system restriction.

    A venting system must have no assembly that could reduce its cross-
sectional flow area or flow capacity to less than that required in Sec.
153.358.



Sec. 153.361  Arrangements for removal of valves from venting systems
having multiple relief valves.

    A venting system having multiple relief valves may be arranged to
allow the removal of a valve (for repair, as an example) provided the
venting system:
    (a) Has valves that are interlocked, so that the removal of a valve
does not reduce the venting system relieving capacity below the minimum
relieving capacity required by Sec. 153.358; and
    (b) Is arranged so that cargo vapor will not escape through the
opening left after a valve has been removed.

[CGD 78-128, 47 FR 21208, May 17, 1982; 47 FR 27293, June 24, 1982]



Sec. 153.362  Venting system drain.

    Unless a cargo vent system at every point is level or slopes back to
the cargo tank under all conditions of heel and trim allowed under Sec.
153.806, the cargo vent system must have a drain valve at each low point
(trap) in the vent line.



Sec. 153.364  Venting system supports.

    Supports for a vent system must meet Sec. 38.10-10(c) of this
chapter.



Sec. 153.365  Liquid overpressurization protection.

    (a) Except as noted in paragraph (b) of this section, a containment
system requiring closed or restricted gauging must:
    (1) Be designed to withstand the maximum pressure that develops
during an overfill of the densest cargo endorsed for the containment
system; or
    (2) Have an overflow control system that meets Sec. 153.408; or
    (3) Meet the requirements specified by the Commandant (CG-ENG).
    (b) A containment system requiring restricted gauging, except for
those cargoes that reference Sec. Sec. 153.525 or 153.527, may be
equipped with a spill valve that:
    (1) Meets ASTM F 1271 (incorporated by reference, see Sec. 153.4);
and
    (2) Limits the maximum pressure during liquid overfill at a
specified cargo loading rate to that which the

[[Page 213]]

containment system is able to withstand (see Sec. Sec. 153.294(b) and
152.977(b)).

[CGD 78-128, 47 FR 21208, May 17, 1982, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 88-032, 56 FR 35827, July 29, 1991; USCG-2000-
7790, 65 FR 58463, Sept. 29, 2000]



Sec. 153.368  Pressure-vacuum valves.

    (a) The pressure side of a required pressure-vacuum relief valve
must begin to open only at a pressure exceeding 3.5 kPa gauge (approx.
0.5 psig).
    (b) A pressure-vacuum relief valve must meet the requirements of
Subpart 162.017 of this chapter.



Sec. 153.370  Minimum relief valve setting for ambient temperature
cargo tanks.

    The relief valve setting for a containment system that carries a
cargo at ambient temperature must at least equal the cargo's vapor
pressure at 46 [deg]C (approx. 115 [deg]F).

[CGD 81-078, 50 FR 21173, May 22, 1985]



Sec. 153.371  Minimum relief valve setting for refrigerated cargo tanks.

    The relief valve setting for a containment system that carries a
refrigerated cargo must at least equal the lesser of:
    (a) That in Sec. 153.370; or
    (b) 110 percent of the cargo's vapor pressure at the steady state
temperature obtained by a full tank of cargo with the refrigeration
system operating under ambient conditions described within the
definition of a refrigerated tank in Sec. 153.2.



Sec. 153.372  Gauges and vapor return for cargo vapor pressures
exceeding 100 kPa (approx. 14.7 psia).

    When table 1 references this section, the containment system must
have a:
    (a) Tank pressure gauge at the point where cargo flow is controlled
during transfer; and
    (b) Vapor return connection.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977; 42 FR 57126, Nov. 1, 1977, as
amended by CGD 81-078, 50 FR 21173, May 22, 1985]

                          Cargo Gauging Systems



Sec. 153.400  General requirements for gauges.

    (a) Columnar gauge glasses must not be installed on a cargo
containment system.
    (b) Flat sight glasses must meet Sec. 38.10-20(h) of this chapter.



Sec. 153.404  Standards for containment systems having required closed
gauges.

    When Table 1 requires a cargo's containment system to have a closed
gauge, the containment system must have the following:
    (a) A permanently installed closed gauging system.
    (b) A vapor return connection.
    (c) The high level alarm described in Sec. 153.409.
    (d) Either a closed cargo sampling system or a cargo sampling
arrangement allowing the retrieval of a sample through an orifice not
exceeding:
    (1) 0.635 cm (approx. 0.25 in.) diameter when the cargo's vapor
pressure is 28 kPa gauge (approx. 4 psig) or less; or
    (2) 0.140 cm (approx. 0.055 in.) diameter when the cargo's vapor
pressure exceeds 28 kPa (approx. 4 psig).



Sec. 153.406  Standards for containment systems having required
restricted gauges.

    When Table 1 requires a cargo's containment system to have a
restricted gauge, the containment system must have:
    (a) A closed gauging system; or
    (b) A system that has:
    (1) A restricted gauge (e.g., a sounding tube) with an orifice
diameter not exceeding 20 cm (approx. 7.8 in.);
    (2) A permanently attached gauge cover that is vapor tight when in
place; and
    (3) A venting system that has either:
    (i) Lock open PV valves; or
    (ii) Valved bypasses around the PV valves.



Sec. 153.407  Special requirements for sounding tube gauges.

    (a) A sounding tube installed as a restricted gauge must extend to
within one meter (approx. 39.4 in.) of the bottom of the tank.

[[Page 214]]

    (b) A sounding tube must not be installed on a tank whose relief
valve setting exceeds 28 kPa (approx. 4 psig) unless it is specifically
permitted by the Commandant (CG-ENG).
    (c) A sounding tube must have no perforations in the tube wall.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983]



Sec. 153.408  Tank overflow control.

    (a) When table 1 references this section, a cargo containment system
must have a cargo high level alarm meeting Sec. 153.409 and one of the
following additional systems:
    (1) A second high level (cargo overflow) alarm.
    (2) A system that automatically stops cargo flow to the tank
(automatic shutdown system).
    (b) The high level alarm and the cargo overflow alarm or automatic
shutdown system must:
    (1) Be independent of one-another; and
    (2) Operate on loss of power.
    (c) The cargo overflow alarm or the automatic shutdown system must
operate early enough to:
    (1) Stop the loading operation before the cargo tank overflows; and
    (2) Avoid surge pressures that exceed the working pressure specified
in Sec. 153.294(b).
    (d) A tank overflow must be identified with the legend ``TANK
OVERFLOW ALARM'' in lettering as specified for the warning sign in Sec.
153.955.
    (e) A tank overflow alarm must be audible and visible in that part
of the deck where the containment systems are located and at the point
where cargo loading is controlled on the tankship.
    (f) The automatic shutdown system or tank overflow alarm must be
able to be checked at the tank for proper operation (for example, by
electrically simulating an overfill at the tank gauge connection).
    (g) In this section, ``independent'' as applied to two systems means
that one system will operate with a failure of any part of the other
system except high level power sources and electrical feeder panels.
Conduit need not be independent; the control wiring for several
independent systems may be carried in a single conduit.

[CGD 81-078, 50 FR 21173, May 22, 1985]



Sec. 153.409  High level alarms.

    When Table 1 refers to this section or requires a cargo to have a
closed gauging system, the cargo's containment system must have a high
level alarm:
    (a) That gives an audible and visual alarm before the tank fills to
97 percent of its capacity;
    (b) That can be seen and heard where cargo transfer is controlled
and on the open deck;
    (c) Whose operation can be checked prior to each loading; and
    (d) That must be marked as described in Sec. 153.408(c)(6) with the
legend ``HIGH LEVEL ALARM.''

[CGD 78-128, 47 FR 21209, May 17, 1982; 47 FR 27293, June 24, 1982]

                    Cargo Temperature Control Systems



Sec. 153.430  Heat transfer systems; general.

    Each cargo cooling system required by this part and each cargo
heating system must:
    (a) Meet the standards of Subchapters F (Marine Engineering) and J
(Electrical Engineering) of this chapter;
    (b) Have valving that enables the system to be separated from all
other cooling and heating systems; and
    (c) Allow manual regulation of the system's heat transfer rate.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21209, May 17, 1982; CGD 81-078, 50 FR 21174, May 22, 1985]



Sec. 153.432  Cooling systems.

    (a) Each cargo cooling system must have an equivalent standby unit
that is installed and that can be placed in operation immediately after
failure of the primary cooling system.
    (b) Each tankship that has a cargo tank with a required cooling
system must have a manual that contains:
    (1) A piping diagram for the cooling system; and

[[Page 215]]

    (2) Instructions for changing over to the standby system described
in paragraph (a) of this section.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21209, May 17, 1982]



Sec. 153.434  Heat transfer coils within a tank.

    When a cargo tank contains any quantity of cargo, a cargo cooling or
heating system having coils within the tank must keep the heat transfer
fluid at a pressure greater than the pressure exerted on the heating or
cooling system by the cargo.

[CGD 78-128, 47 FR 21209, May 17, 1982]



Sec. 153.436  Heat transfer fluids: compatibility with cargo.

    A heat transfer fluid separated from the cargo by only one wall (for
example, the heat transfer fluid in a coil within a tank) must be
compatible with the cargo under the standards prescribed for
compatibility between two cargoes in Part 150 of this chapter.

[CGD 81-078, 50 FR 21174, May 22, 1985]



Sec. 153.438  Cargo pressure or temperature alarms required.

    (a) Each refrigerated tank must have:
    (1) An alarm that operates when the cargo's pressure exceeds the
vapor pressure described in Sec. 153.371(b); or
    (2) An alarm that operates when the cargo's temperature exceeds the
steady state temperature described in Sec. 153.371(b).
    (b) The alarm must give an audible and visual signal on the bridge
and at the cargo control station.
    (c) The cargo pressure or temperature alarm must be independent of
other cargo pressure or temperature sensing arrangements.



Sec. 153.440  Cargo temperature sensors.

    (a) Except as prescribed in paragraph (c) of this section, when
Table 1 refers to this section, the containment system must meet the
following requirements:
    (1) A heated or refrigerated cargo tank must have a remote reading
thermometer sensing the temperature of the cargo at the bottom of the
tank.
    (2) A refrigerated tank must have a remote reading second
thermometer near the top of the tank and below the maximum liquid level
allowed by Sec. 153.981.
    (3) Unless waived under Sec. 153.491(a), a cargo tank endorsed to
carry a Category A, B, or C NLS cargo must have a thermometer whose
temperature reading is no greater than the temperature of the cargo at a
level above the tank bottom at least one-eighth but no more than one-
half the height of the tank if the cargo is--
    (i) A Category A NLS or a Category B NLS having a viscosity of at
least 25 mPa.s at 20 [deg]C;
    (ii) A Category C NLS having a viscosity of at least 60 mPa.s at 20
[deg]C; or
    (iii) A Category A, B, or C NLS that has a melting point greater
than 0 [deg]C.
    (b) A readout for each remote thermometer required by this section
must be at the point where cargo transfer is controlled.
    (c) A portable thermometer may be substituted for the equipment
required in paragraphs (a) and (b) of this section if--
    (1) Table 1 allows open gauging with the cargo; or
    (2) Table 1 allows restricted gauging with the cargo, and the
portable thermometer is designed to be used through the containment
system's restricted gauging system.

[CGD 78-128, 47 FR 21209, May 17, 1982, as amended by CGD 81-101, 52 FR
7781, Mar. 12, 1987; CGD 81-101, 53 FR 28974, Aug. 1, 1988 and 54 FR
12629, Mar. 28, 1989]

        Special Requirements for Flammable or Combustible Cargoes



Sec. 153.460  Fire protection systems.

    Each self-propelled ship and each manned non-self-propelled ship
must meet the following:
    (a) With the exception of the vent riser, each part of a cargo
containment system exposed on the weatherdeck must be covered by the
fire protection system listed beside the cargo in Table 1 and described
in the footnotes to Table 1.
    (b) The Commandant (CG-ENG) approves the substitution of a dry
chemical (D) type fire protection system for an A or B type on a case by
case basis.

[[Page 216]]

    (c) A fire protection system required by this part must meet part 34
of this chapter or be specifically approved by the Commandant (CG-ENG).

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983; CGD 81-101, 52 FR 7781, Mar. 12, 1987]



Sec. 153.461  Electrical bonding of independent tanks.

    An independent metallic cargo tank that carries a flammable or
combustible cargo must be electrically bonded to the tankship's hull.



Sec. 153.462  Static discharges from inert gas systems.

    An inert gas system on a tank that carries a flammable or
combustible cargo must not create static arcing as the inert gas is
injected into the tank.



Sec. 153.463  Vent system discharges.

    The discharge of a venting system must be at least 10 m (approx.
32.8 ft) from an ignition source if:
    (a) The cargo tank is endorsed to carry a flammable or combustible
cargo; and
    (b) Table 1 requires the cargo to have a PV venting system.



Sec. 153.465  Flammable vapor detector.

    (a) A tankship that carries a flammable cargo must have two vapor
detectors that meet Sec. 35.30-15(b) of this chapter.
    (b) At least one of the vapor detectors in paragraph (a) of this
section must be portable.



Sec. 153.466  Electrical equipment.

    A tankship carrying a flammable or combustible cargo under this part
must meet subchapter J of this chapter.

               Design and Equipment for Pollution Control

    Source: Sections 153.470 through 153.491 appear at CGD 81-101, 52 FR
7781, Mar. 12, 1987, unless otherwise noted.



Sec. 153.470  System for discharge of NLS residue to the sea: Categories
A, B, C, and D.

    Unless waived under Sec. 153.491, each ship that discharges
Category A, B, or C NLS residue, or Category D NLS residue not diluted
to \1/10\th of its original concentration, into the sea under Sec. Sec.
153.1126 and 153.1128 must have an NLS residue discharge system meeting
the following:
    (a) Minimum diameter of an NLS residue discharge outlet. The outlet
of each NLS residue discharge system must have a diameter at least as
great as that given by the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.044

where:

D=Minimum diameter of the discharge outlet in meters.
Qd=Maximum rate in cubic meters per hour at which the ship
          operator wishes to discharge slops (note: Qd
          affects the discharge rate allowed under Sec.
          153.1126(b)(2)).
L=Distance from the forward perpendicular to the discharge outlet in
          meters.
[phis]=The acute angle between a perpendicular to the shell plating at
          the discharge location and the direction of the average
          velocity of the discharged liquid.

    (b) Location of an NLS residue discharge outlet. Each NLS residue
discharge outlet must be located--
    (1) At the turn of the bilge beneath the cargo area; and
    (2) Where the discharge from the outlet is not drawn into the ship's
seawater intakes.
    (c) Location of dual NLS residue discharge outlets. If the value of
6.45 for K is used in Sec. 153.1126(b)(2), the NLS residue discharge
system must have two outlets located on opposite sides of the ship.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28974, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989; CGD 95-028, 62 FR
51209, Sept. 30, 1997]



Sec. 153.480  Stripping quantity for Category B and C NLS tanks on
ships built after June 30, 1986: Categories B and C.

    Unless waived under Sec. 153.491, Category B and C NLS cargo tanks
on each ship built after June 30, 1986 must have stripping quantities
determined under Sec. 153.1604 that are less than--
    (a) 0.15 m\3\ if Category B; and
    (b) 0.35 m\3\ if Category C.

[[Page 217]]



Sec. 153.481  Stripping quantities and interim standards for Category
B NLS tanks on ships built before July 1, 1986: Category B.

    Unless waived under Sec. 153.483 or Sec. 153.491, each Category B
NLS cargo tank on ships built before July 1, 1986 must meet the
following:
    (a) Unless the tank meets the interim standard provided by paragraph
(b) of this section and is prewashed in accordance with Sec. 153.1118,
the tank must have a stripping quantity determined under Sec. 153.1604
that is less than 0.35m \3\.
    (b) Before October 3, 1994, the tank may have a total NLS residue
determined under Sec. 153.1608 that is less than 1.0 m\3\ or \1/3000\th
of the tank's capacity and an NLS residue discharge system meeting the
following:
    (1) The system must be capable of discharging at a rate equal to or
less than Q in the following formula:

Q=K U\1.4\ L\1.6\x10-5 m\3\/hr

where:

K=4.3, except K=6.45 if the discharge is equally distributed between two
          NLS residue discharge outlets on opposite sides of the ship
          (see Sec. Sec. 153.470(c) and 153.1126(b)).
L=ship's length in meters.
U=for a ship that is self-propelled, the minimum speed in knots
          specified in the approved Procedures and Arrangements Manual
          for discharging Category B NLS residue, but at least 7;
U=for a ship that is not self-propelled, the minimum speed in knots
          specified in the approved Procedures and Arrangements Manual
          for discharging Category B NLS residue, but at least 4.

    (2) The system must have equipment capable of automatically
recording--
    (i) The time of day that discharge of NLS residue through the
residue discharge system starts and ends; and
    (ii) The dates on which discharge begins and ends unless the
equipment allows a person to enter these dates on the record manually.
    (3) Each system that has the capacity to exceed Q calculated in
paragraph (b)(1) of this section must have equipment that--
    (i) Records the NLS residue flow through the system; and
    (ii) Is sufficiently accurate that its recorded values averaged over
any 30 second period differ no more than 15% from the actual flow
averaged over the same 30 second period.
    (4) Each system that has the capacity to exceed Q calculated under
paragraph (b)(1) of this section and does not automatically control the
flow rate must have--
    (i) Manual controls that enable the flow to be adjusted to the value
of Q calculated in paragraph (b)(1) of this section and that must be
moved through at least 25% of their total range of movement for the
discharge rate to change from 0.5Q to 1.5Q; and
    (ii) A flow rate meter located where the flow is manually
controlled.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28974, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.482  Stripping quantities and interim standards for Category
C NLS tanks on ships built before July 1, 1986: Category C.

    Unless waived under Sec. 153.483 or Sec. 153.491, each Category C
NLS cargo tank on ships built before July 1, 1986 must meet the
following:
    (a) Unless the tank meets the interim standard provided by paragraph
(b) of this section, the tank must have a stripping quantity determined
under 153.1604 that is less than 0.95 m\3\.
    (b) Before October 3, 1994, the tank may have a total NLS residue
determined under Sec. 153.1608 that is less than 3.0 m\3\ or 1/1000th
of the tank's capacity.



Sec. 153.483  Restricted voyage waiver for Category B and C NLS tanks
on ships built before July 1, 1986: Category B and C.

    At its discretion the Coast Guard waives Sec. Sec. 153.481 and
153.482 under this section and allows a ship to carry Category B and C
NLS cargoes between ports or terminals in one or more countries
signatory to MARPOL 73/78 if the ship's owner requests a waiver
following the procedures in Sec. 153.10 and includes--
    (a) A written pledge to--
    (1) Limit the loading and discharge of Category B and C NLS cargoes
in a foreign port to those ports and terminals in countries signatory to
MARPOL 73/78 and listed in accordance with paragraph (b) of this
section; and

[[Page 218]]

    (2) Prewash the cargo tank as required under Sec. 153.1118 after
each Category B or C NLS is unloaded unless the prewash is allowed to be
omitted under Sec. 153.1114;
    (b) A list of--
    (1) All foreign ports or terminals at which the ship is expected to
load or discharge Category B or C NLS cargo, and
    (2) All foreign ports or terminals at which the ship is expected to
discharge Category B or C NLS residue from the tank;
    (c) An estimate of the quantity of NLS residue to be discharged to
each foreign port or terminal listed under paragraph (b)(2) of this
section;
    (d) Written statements from the owners of adequate reception
facilities in the ports and terminals listed in accordance with
paragraph (b)(2) of this section who have agreed to take NLS residue
from the ship, showing the amount of NLS residue each agrees to take;
and
    (e) A written attestation from the person in charge of each port or
terminal listed in accordance with paragraph (b)(1) of this section that
the administration has determined the port or terminal to have adequate
reception facilities for the NLS residue.

    Note to Sec. 153.483: Certificates of Inspection and any IMO
Certificates issued to ships on restricted voyage waivers indicate that
while the ship carries an NLS cargo or NLS residue, it is limited to
voyages between the ports or terminals listed on the certificate.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.484  Prewash equipment.

    Unless the ship operator shows that the prewash equipment specified
in this section will be available at discharge or prewash facilities or
the equipment is waived under Sec. 153.491, to have its Certificate of
Inspection or Certificate of Compliance endorsed to carry a Category A
NLS or a Category B or C NLS requiring viscosity or melting point
information under Sec. 153.908 (a) and (b), a ship must have the
following:
    (a) For the tanks that carry the NLS, a tank washing system capable
of washing all interior tank surfaces except those shielded from the
washing system spray by ship's structure, and consisting of a wash water
supply system and--
    (1) A fixed tank washing machine in each tank; or
    (2) A portable tank washing machine and, if required by the Coast
Guard, equipment to move it during washing and when storing.
    (b) Piping, valving, and crossovers needed to arrange the cargo
piping so that the wash water passes through the cargo pump and cargo
piping during tank washing or discharge of tank wash water.
    (c) If the approved Procedures and Arrangements Manual specifies the
hot water prewash required under 153.1108, a means of supplying water to
the tank washing machine under paragraph (a) of this section at--
    (1) A temperature of at least 60 [deg]C (140 [deg]F) when it leaves
the washing machine; and
    (2) The flow rate needed for the washing machine jets to meet
paragraph (a) of this section.



Sec. 153.486  Design and equipment for removing NLS residue by
ventilation: Categories A, B, C, and D.

    (a) If NLS residue is to be removed from a cargo tank by
ventilation, in addition to the equipment required under paragraph (b)
of this section the ship must have--
    (1) Openings in the tank deck near the sump or suction point;
    (2) If the openings required by paragraph (a)(1) of this section are
insufficient, an access opening for visually determining whether liquid
remains in the sump area of the cargo tank after ventilation or some
other means for making this determination; and
    (3) An approved Procedures and Arrangements Manual with instructions
that meet Sec. 153.490(b)(3).
    (b) Unless the ship operator shows that the ventilation equipment
specified in this paragraph will be available from shore when needed, if
NLS residue is to be removed from a cargo tank by ventilation, in
addition to the equipment required under paragraph (a) of this section
the ship must have--
    (1) Portable forced air ventilating equipment fitting the
ventilation openings required in paragraph (a) of this

[[Page 219]]

section and able to ventilate the extremities of the tank to the extent
prescribed in Appendix C of the IMO Standards for Procedures and
Arrangements for the Discharge of Noxious Liquid Substances, Resolution
MEPC 18(22), 1985; and
    (2) A connector that allows a fan or air supply to be connected to
the hose connections for the tank at the manifold.

    Note: The Clean Air Act (42 U.S.C. 7401 et seq.) allows states to
regulate emissions from tank ventilation. There may be other
regulations, both local and Federal, that affect the use of tank
ventilation for safety or environmental purposes.



Sec. 153.488  Design and equipment for tanks carrying high melting point
NLSs: Category B.

    Unless waived under Sec. 153.491, for a ship to have its
Certificate of Inspection or Certificate of Compliance endorsed allowing
a tank to carry a Category B NLS with a melting point of 15 [deg]C or
more, the cargo tank must have--
    (a) An arrangement enabling the cargo to be heated before cargo
transfer, using heat supplied by the ship or by another source; and
    (b) Sides and bottom separate from the ship's side or bottom shell
plating.



Sec. 153.490  Cargo Record Book and Approved Procedures and Arrangements
Manual: Categories A, B, C, and D.

    (a) Unless waived under Sec. 153.491, to have a Certificate of
Inspection or Certificate of Compliance endorsed to carry NLS cargo, a
ship must have--
    (1) If U.S., a Cargo Record Book published by the Coast Guard (OMB
App. No. 1625-0094), or, if foreign, a Cargo Record Book having the same
entries and format as Appendix 4 of Annex II; and
    (2) A Procedures and Arrangements Manual meeting paragraph (b) of
this section and approved by--
    (i) The Coast Guard, if the ship is a United States ship or one
whose Administration is not signatory to MARPOL 73/78; or
    (ii) The Administration, if the ship is one whose Administration is
signatory to MARPOL 73/78.
    (b) Each Procedures and Arrangements Manual under paragraph (a)(2)
of this section must include the following:
    (1) The standard format and content prescribed in Chapter 2 and
Appendix D of the IMO Standards for Procedures and Arrangements for the
Discharge of Noxious Liquid Substances, Resolution MEPC 18(22), 1985,
or, for ships for which the only NLS carried is a Category D NLS and
ships having a waiver under Sec. 153.483 or Sec. 153.491, the format
and content prescribed by the Commandant (CG-ENG).
    (2) If the ship has a tank that carries a cargo under a waiver
issued under Sec. 153.483, procedures ensuring that--
    (i) Category B and C NLSs are discharged from the tank only in the
ports or terminals listed in accordance with Sec. 153.483(b); and
    (ii) The tank is prewashed after discharging each Category B or C
NLS unless Sec. 153.1114 allows the prewash to be omitted.
    (3) If ventilation is used to clean a tank under Sec.
153.1102(b)(2), ventilation procedures that meet those in Appendix C of
the IMO Standards for Procedures and Arrangements for the Discharge of
Noxious Liquid Substances, Resolution MEPC 18(22), 1985.
    (4) If tank cleaning agents are used, quantities to use and
instructions for using the cleaning agents.
    (5) If the tank has the discharge recording equipment required in
Sec. 153.481(b), procedures to ensure that no NLS residue is discharged
from the tank when the recording equipment is incapacitated unless the
concentration and total quantity limits for the NLS in Annex II are not
exceeded.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989; USCG-2006-25697, 71
FR 55747, Sept. 25, 2006]



Sec. 153.491  Waiver of certain equipment for dedicated cargo tanks.

    (a) The Coast Guard waives Sec. Sec. 153.440(a)(3), 153.480,
153.481, 153.482, and 153.488 and endorses a ship's Certificate of
Inspection or Certificate of Compliance allowing a cargo tank to carry a
single, specific NLS cargo and no other cargo if the ship's owner--
    (1) Requests a waiver following the procedures in Sec. 153.10; and

[[Page 220]]

    (2) Pledges in writing that while any waiver is in effect the cargo
tank will--
    (i) Carry only the NLS cargo listed on the Certificate of Inspection
or Certificate of Compliance;
    (ii) Carry no cargo other than the NLS; and
    (iii) Not be washed or ballasted unless the wash water or ballast
water is discharged to a reception facility.
    (b) The Coast Guard waives Sec. Sec. 153.470 and 153.490(a)(2) if--
    (1) The ship's owner requests a waiver following the procedures in
Sec. 153.10;
    (2) The Coast Guard has issued a waiver to each of the ship's NLS
cargo tanks under paragraph (a) of this section; and
    (3) The ship's owner adds to the ship's operational manual any
provisions for preventing NLS discharge specified by the Commandant (CG-
ENG) as a condition for issuing the waiver.

[CGD 81-101, 52 FR 7781, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]

                          Special Requirements



Sec. 153.500  Inert gas systems.

    When Table 1 refers to this section, a cargo containment system must
have a permanent inert gas system that:
    (a) Maintains the vapor space of the containment system in an inert
state by filling the vapor space with a gas that is neither reactive
with the cargo nor flammable;
    (b) Has a pressure control system that:
    (1) Prevents the inert gas system from raising the cargo tank
pressure to more than the relief valve setting; and
    (2) Maintains at least a 3.5 kPa gauge (approx. 0.5 psig) pressure
within the containment system at all times, including cargo discharge;
    (c) Has storage for enough inerting gas to replace that normally
lost while the tank's atmosphere is maintained in an inert condition
(e.g. through tank breathing and relief valve leakage), but in no case
an amount less than 5 percent of the tank's capacity when measured with
the gas at -18 [deg]C (approx. 0 [deg]F) and a pressure equal to the
cargo tank's relief valve setting; and
    (d) Has connections for any supplemental gas supply necessary to
maintain the inert gas pressure described in paragraph (b) of this
section during cargo discharge.



Sec. 153.501  Requirement for dry inert gas.

    When Table 1 refers to this section, an inert gas system for the
containment system must supply inert gas containing no more than 100 ppm
water.



Sec. 153.515  Special requirements for extremely flammable cargoes.

    When Table 1 refers to this section:
    (a) An enclosed space containing a cargo tank must have an inerting
system that meets the requirements in Sec. 153.500 applying to the
inert gas system of a containment system;
    (b) Cargo discharge pumps must be of a type that does not subject
the shaft gland to the cargo under pressure or that is submerged; and
    (c) The cargo tank's relief valve setting must be no less than 21
kPa gauge (approx. 3 psig).



Sec. 153.520  Special requirements for carbon disulfide.

    A containment system carrying carbon disulfide must meet the
following:
    (a) Each cargo pump must be of the intank type and encased within a
cylindrical well that extends from the top of the tank to a point no
more than 10 cm (approx. 4 in.) above the bottom of the tank.
    (b) [Reserved]
    (c) The cargo piping and venting systems must be completely
independent of those for other cargo.
    (d) Pressure relief valves must be made of type 304 or 316 stainless
steel.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21209, May 17, 1982]



Sec. 153.525  Special requirements for unusually toxic cargoes.

    When Table 1 refers to this section a containment system must meet
the following:
    (a) Cargo piping and venting systems must be designed so that they
can be separated from any containment system endorsed for a cargo not
covered by this section.

[[Page 221]]

    (b) A cargo tank's relief valve setting must be not less than 21 kPa
gauge (approx. 3 psig).
    (c) All cargo pumps and valves located below the weatherdeck must be
operable from the weatherdeck.
    (d) A heat transfer system for the cargo must:
    (1) Be independent of other ship service systems, except for other
cargo heat transfer systems, and not enter the engine room;
    (2) Be totally external to the cargo containment system; or
    (3) Be approved by the Commandant (CG-ENG) for use with toxic
cargoes.
    (e) The cargo must be separated from any bunkers by at least two
bulkheads.
    (f) A cargo containment system must have a vapor return connection.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21209, May 17, 1982; CGD 82-063b, 48 FR 4782, Feb. 3, 1983]



Sec. 153.526  Toxic vapor detectors.

    (a) When Table 1 refers to this section, a tankship must have two
toxic vapor detectors, at least one of which must be portable, each able
to measure vapor concentrations in the range of the time weighted
average (TWA) for the cargo. The portable detector may be a direct
reading detector tube instrument. These vapor detectors may be combined
with those required by Sec. 153.465.
    (b) When the toxic vapor detectors required by paragraph (a) of this
section are not available and the cargo referenced to this section is
transferred through a cargo pumproom, the tankship must meet Sec.
153.336(b).

[CGD 78-128, 47 FR 21210, May 17, 1982]



Sec. 153.527  Toxic vapor protection.

    When Table 1 refers to this section, a tankship must have on board
for each crew member:
    (a) An emergency escape breathing apparatus (EEBA) approved by the
Mining Safety and Health Administration (formerly the Mining Enforcement
and Safety Administration) and the National Institute for Occupational
Safety and Health, or the tankship's flag administration.
    (b) Where the emergency escape breathing apparatus does not protect
the eyes from vapors, a set of goggles that either:
    (1) Meet the specifications of ANSI Practice for Occupational and
Educational Eye and Face Protection, Z-87.1(1979); or
    (2) Are approved by the tankship's flag administration.

[CGD 78-128, 47 FR 21210, May 17, 1982]



Sec. 153.530  Special requirements for alkylene oxides.

    When Table 1 refers to this section, a containment system must meet
the following:
    (a) Except as provided in paragraphs (b) and (c) of this section, a
cargo containment system must be made of:
    (1) Stainless steel other than types 416 and 442; and
    (2) Steel.
    (b) Except as provided in paragraph (c) of this section, gaskets
must be composites of spirally wound stainless steel and Teflon or
similar fluorinated polymer.
    (c) The Commandant (CG-ENG) approves a cargo containment system
using materials other than those described in this section for alkylene
oxides on a case by case basis if:
    (1) The person wishing to have the containment system approved
completes any tests prescribed by the Commandant (CG-ENG); and
    (2) The Commandant (CG-ENG) approves the results of the tests and
the material for use with alkylene oxides.
    (d) The following materials are generally found unsatisfactory for
gaskets, packing, insulation, and similar uses in alkylene oxide
containment systems and would require extensive testing as described in
paragraph (c) of this section before being approved:
    (1) Neoprene or natural rubber if it might be in contact with the
alkylene oxide.
    (2) Asbestos or asbestos mixed with other materials such as with
many common insulations, packing materials, and gasket materials.
    (3) Materials containing oxides of magnesium, such as mineral wools.
    (e) The tank's relief valve setting must not be less than 21 kPa
gauge (approx. 3 psig).

[[Page 222]]

    (f) If the containment system is equipped with a cooling system, the
cooling system must:
    (1) Not compress the cargo; and
    (2) Regulate the cargo temperature automatically and allow manual
regulation.
    (g) The cargo piping system must:
    (1) Comply with Part 38 of this chapter;
    (2) Be completely separate from all other systems;
    (3) Be assembled from valves, fittings, and accessories having a
pressure rating of not less than 1030 kPa gauge (approx. 150 psig)
(American National Standards Institute); and
    (4) Have no threaded joints.
    (h) The cargo containment system vapor space and each space listed
in paragraphs (k) and (l) of this section must have continuous
monitoring of oxygen concentration or have an arrangement to enable
sampling with a portable oxygen analyzer.
    (i) Valve disks or disk faces, seats, and other wearing valve parts
must be made of stainless steel containing no less than 11 percent
chromium.
    (j) The venting system must be independent of other containment or
tankship systems.
    (k) When a cargo tank is in an enclosed space, the space must have:
    (1) An inert gas system meeting the requirements that apply to the
inert gas system of a containment system in Sec. 153.500, or
    (2) A forced ventilation system meeting the requirements that apply
to a cargo handling space ventilation system in Sec. 153.312.
    (l) Cofferdams, cargo tanks, double bottom spaces, void spaces and
other enclosed spaces adjacent to an integral cargo tank must have an
inert gas system meeting the requirements that apply to the inert gas
system of a containment system in Sec. 153.500.
    (m) An intank pump or inert gas displacement must be used to
discharge cargo.
    (n) The cargo discharge piping system must have a remotely actuated
quick closing shutoff valve that meets Sec. 153.284 at the cargo
transfer hose connection.
    (o) Cargo hose must:
    (1) Have the specific approval of the Commandant (CG-ENG) for use in
alkylene oxide transfer; and
    (2) Be marked ``For Alkylene Oxide Transfer Only''.
    (p) All exposed parts of the cargo containment system above or on
the deck, such as tank domes, cargo piping, and loading manifolds, must
be covered by a water spray system that:
    (1) Operates automatically in a fire involving the cargo containment
system;
    (2) Has at least two remote manual actuators, one in each emergency
shutdown station required by Sec. 153.296; and
    (3) Covers the area of application with a uniform spray of

0.175 l/m\2\ sec (0.0043 gal/ft\2\ sec).

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21210, May 17, 1982; CGD 82-063b, 48 FR 4782, Feb. 3, 1983; CGD 82-063b,
48 FR 39629, Sept. 1, 1983; CGD 81-078, 50 FR 21174, May 22, 1985; USCG-
2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 153.545  Special requirements for liquid sulfur.

    (a) A containment system carrying liquid sulfur must have:
    (1) A cargo tank ventilation system that:
    (i) Maintains the H2S vapor concentration below 1.85
percent by volume; and
    (ii) Prevents sulfur buildup within itself; and
    (2) An alarm system designed to operate when the ventilation system
blower fails.
    (b) The void spaces around a cargo tank that carries liquid sulfur
must be oil tight.
    (c) A cargo tank that carries liquid sulfur and the void spaces
surrounding the tank must have connections for sampling vapor.



Sec. 153.554  Special requirements for acids.

    When Table 1 refers to this section:
    (a) Each containment system loading and discharge connection must
have a spray shield;
    (b) Each cargo containment system must be separated from bunkers by
double walls, such as a cofferdam and piping tunnels; and

[[Page 223]]

    (c) Each vessel must have on board a means to determine whether
cargo has leaked into the spaces adjacent to a cargo containment system.



Sec. 153.555  Special requirements for inorganic acids.

    When Table 1 refers to this section, a tankship's shell plating must
not be a part of the cargo tank.

[CGD 78-128, 47 FR 21210, May 17, 1982]



Sec. 153.556  Special requirements for sulfuric acid and oleum.

    (a) Except as prescribed in paragraphs (b) and (c) of this section,
containment systems carrying sulfuric acid, oleum, or contaminated
sulfuric acid are approved by the Commandant (CG-ENG) on a case by case
basis.
    (b) A containment system carrying sulfuric acid may be:
    (1) Made of unlined steel if the cargo composition is between 70 and
80 or between 90 and 100 percent acid by weight;
    (2) Lined with lead if the cargo composition does not exceed 96
percent acid by weight; or
    (3) Lined with natural rubber or neoprene if the cargo composition
does not exceed 51 percent acid by weight.
    (c) A containment system for oleum may be of unlined steel if the
concentration of free sulfur trioxide in the oleum exceeds 20 percent by
weight.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983]



Sec. 153.557  Special requirements for hydrochloric acid.

    (a) A containment system that carries hydrochloric acid must be
lined with:
    (1) Natural rubber;
    (2) Neoprene; or
    (3) A material approved for hydrochloric acid tanks by the
Commandant (CG-ENG).
    (b) Containment systems for contaminated hydrochloric acid are
approved by the Commandant (CG-ENG) on a case by case basis.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4781, Feb. 3, 1983]



Sec. 153.558  Special requirements for phosphoric acid.

    A phosphoric acid containment system must be:
    (a) Lined with natural rubber or neoprene;
    (b) Lined with a material approved for phosphoric acid tanks by the
Commandant (CG-ENG); or
    (c) Made of a stainless steel that resists corrosion by phosphoric
acid.

    Note: ``Phosphoric acid'', as defined in Sec. 153.2, includes
phosphoric acid, superphosphoric acid, and aqueous solutions of
phosphoric acid.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983; CGD 88-100, 54 FR 40042, Sept. 29, 1989]



Sec. 153.559  Special requirements for nitric acid (less than 70 percent).

    A containment system that carries nitric acid (less than 70 percent)
must be of stainless steel that resists corrosion by nitric acid.



Sec. 153.560  Special requirements for Alkyl (C7-C9) nitrates.

    (a) The carriage temperature of octyl nitrates must be maintained
below 100 [deg]C (212 [deg]F) in order to prevent the occurrence of a
self-sustaining exothermic decomposition reaction.
    (b) Octyl nitrates may not be carried in a deck tank unless the tank
has a combination of insulation and a water deluge system sufficient to
maintain the tank's cargo temperature below 100 [deg]C (212 [deg]F) and
the cargo temperature rise at below 1.5 [deg]C(2.7 [deg]F)/hour, for a
fire of 650 [deg]C (1200 [deg]F).

[CGD 88-100, 54 FR 40042, Sept. 29, 1989, as amended by CGD 92-100, 59
FR 17028, Apr. 11, 1994; CGD 94-900, 59 FR 45139, Aug. 31, 1994]



Sec. 153.565  Special requirement for temperature sensors.

    If a cargo listed in table 1 of this part refers to this section,
temperature sensors must be used to monitor the cargo pump temperature
to detect overheating due to pump failures, when carrying that cargo.

[CGD 94-900, 59 FR 45139, Aug. 31, 1994]

[[Page 224]]



Sec. 153.602  Special requirements for cargoes reactive with water.

    When Table 1 refers to this section, the air inlet to the pressure-
vacuum valve for the cargo tank must be located at least 2m (approx. 6.6
ft) above the weatherdeck.

[CGD 78-128, 47 FR 21210, May 17, 1982]

                         Testing and Inspection



Sec. 153.806  Loading information.

    Each tankship must have a manual containing information that enables
the master to load and ballast the tankship while keeping structural
stresses within design limits.

[CGD 79-023, 48 FR 51009, Nov. 4, 1983]



Sec. 153.808  Examination required for a Certificate of Compliance.

    Before a vessel receives either an initial or a reissued Certificate
of Compliance endorsed to carry a cargo from Table 1 of this part, the
vessel must call at a U.S. port for an examination during which the
Officer in Charge, Marine Inspection, determines whether or not the
vessel meets the requirements of this chapter.

[CGD 81-052, 50 FR 8733, Mar. 5, 1985, as amended by CGD 95-027, 61 FR
26009, May 23, 1996]



Sec. 153.809  Procedures for having the Coast Guard examine a vessel for
a Certificate of Compliance.

    The owner of a foreign flag vessel wishing to have the Coast Guard
conduct a Certificate of Compliance examination, as required by Sec.
153.808, must proceed as follows:
    (a) Notify the Officer in Charge, Marine Inspection of the port
where the vessel is to be inspected at least 7 days before the vessel
arrives and arrange the exact time and other details of the examination.
This notification is in addition to any other pre-arrival notice to the
Coast Guard required by other regulations, but may be concurrent with
the endorsement application in Sec. 153.9, and must include--
    (1) The name of the vessel's first U.S. port of call;
    (2) The date that the vessel is scheduled to arrive;
    (3) The name and telephone number of the owner's local agent; and
    (4) The names of all cargoes listed in table 1 of this part that are
on board the vessel.
    (b) Before the examination required by Sec. 153.808 is begun, make
certain that the following plans are on board the vessel and available
to the Marine Inspector. These plans include--
    (1) A general arrangement (including the location of fire fighting,
safety, and lifesaving gear);
    (2) A capacity plan;
    (3) A schematic diagram of cargo piping on deck and in tanks
(including the location of all valves and pumps); and
    (4) A schematic diagram of cargo tank vent piping (including the
location of relief valves and flame screens).

[CGD 95-027, 61 FR 26009, May 23, 1996]



Sec. 153.812  Inspection for Certificate of Inspection.

    The rules governing the issuance of Certificates of Inspection are
contained in part 31 of this chapter.



                          Subpart C_Operations

                     Documents and Cargo Information



Sec. 153.900  Certificates and authorization to carry a bulk liquid
hazardous material.

    (a) Except as allowed in 33 CFR 151.33(a), no ship may carry a cargo
of bulk liquid hazardous material or an NLS residue if the bulk liquid
hazardous material or NLS is listed in Table 1 or carried under a
written permission under paragraph (d) of this section unless the ship
meets the following:
    (1) The cargo must be carried in a cargo tank.
    (2) If a United States ship, the ship must have a Subchapter D or I
Certificate of Inspection that is endorsed to allow the cargo tank to
carry the cargo.
    (3) If a foreign ship, the ship must have a Certificate of
Compliance that is endorsed to allow the cargo tank to carry the cargo.
    (4) The ship must have an IMO Certificate of Fitness issued under
Sec. 153.12 that is endorsed to allow the cargo tank to carry the cargo
if it is--

[[Page 225]]

    (i) A United States self-propelled ship in foreign waters; or
    (ii) A United States non-self-propelled ship in the waters of
another Administration signatory to MARPOL 73/78 and the cargo is a
Category A, B, or C NLS.
    (b) [Reserved]
    (c) No ship may carry any bulk liquid cargo not listed in Sec.
30.25-1 of this chapter, Table 151.05 of Part 151 of this chapter, Table
1 or Table 2 of this part, Table 4 of Part 154 of this chapter, 33 CFR
151.47, or 33 CFR 151.49 unless the cargo name is endorsed on the
Certificate of Inspection or contained in a letter issued under
paragraph (d) of this section.
    (d) The Coast Guard at its discretion endorses the Certificate of
Inspection with the name of or issues a letter allowing the carriage of
an unlisted cargo described under paragraph (c) of this section if--
    (1) The shipowner--
    (i) Requests the Coast Guard to add the cargo; and
    (ii) Supplies any information the Coast Guard needs to develop
carriage requirements for the bulk liquid cargo; and
    (2) The ship--
    (i) Has a Certificate of Inspection, Certificate of Compliance, or
IOPP Certificate as specified in this part;
    (ii) Meets the design and equipment requirements of this part
specified by the Coast Guard; and
    (iii) Meets any additional requirements made by the Coast Guard.

[CGD 81-101, 52 FR 7783, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.901  Documents: Posting, availability, and alteration.

    (a) No person may operate a United States ship unless the endorsed
Certificate of Inspection is readily available on the ship.
    (b) No person may operate a foreign ship unless the endorsed
Certificate of Compliance or Certificate of Inspection is readily
available on the ship.
    (c) No person may operate a ship under an alternative or waiver
granted under this part unless the document granting the alternative or
waiver is attached to the ship's Certificate of Inspection or
Certificate of Compliance.
    (d) Except as allowed in paragraph (e) of this section, the Coast
Guard does not accept the following if altered:
    (1) Certificates of Inspection.
    (2) Certificates of Compliance.
    (3) Certificates of Fitness, unless the alteration is by the issuing
authority.
    (4) Approved Procedures and Arrangements Manuals, unless the
alteration is approved by the issuing authority.
    (5) NLS Certificates.
    (e) A person wishing to change a Procedures and Arrangements Manual
approved by the Coast Guard must submit a copy to the Coast Guard
following the procedures for requesting an endorsed Certificate of
Inspection in Sec. 153.8.

[CGD 81-101, 52 FR 7783, Mar. 12, 1987]



Sec. 153.902  Expiration and invalidation of the Certificate of
Compliance.

    (a) The Certificate of Compliance shows its expiration date.
    (b) The endorsement of a Certificate of Compliance under this part
is invalid if the vessel does not have a valid IMO Certificate of
Fitness.
    (c) The endorsement on a Certificate of Compliance invalidated under
paragraph (b) of this section, becomes valid again once the ship has the
IMO Certificate of Fitness revalidated or reissued.

    Note: See Sec. 153.809 for procedures for having a Certificate of
Compliance reissued.

[CGD 81-101, 52 FR 7784, Mar. 12, 1987; CGD 95-072, 60 FR 50465, Sept.
29, 1995; 60 FR 54106, Oct. 19, 1995; CGD 95-027, 61 FR 26009, May 23,
1996]



Sec. 153.903  Operating a United States ship in special areas:
Categories A, B, and C.

    No person may operate a United States ship that carries an NLS or
NLS residue in a special area unless--
    (a) The ship's Certificate of Inspection is endorsed in accordance
with Sec. 153.30; and
    (b) The ship meets the operating requirements applying to special
areas in Regulations 5, 5A, 8 and the Standards

[[Page 226]]

for Procedures and Arrangements of Annex II.

[CGD 81-101, 52 FR 7784, Mar. 12, 1987]



Sec. 153.904  Limitations in the endorsement.

    No person may operate a tankship unless that person complies with
all limitations in the endorsement on the tankship's Certificate of
Inspection or Certificate of Compliance.

[CGD 81-052, 50 FR 8734, Mar. 5, 1985]



Sec. 153.905  Regulations required to be on board.

    No person may operate a tankship unless the most recent editions of
this part, and parts 35 and 150 of this chapter are on board.

[CGD 78-128, 47 FR 21210, May 17, 1982]



Sec. 153.907  Cargo information.

    (a) The master shall ensure that the following information for each
cargo carried under this part is readily available to those on the
tankship engaged in cargo operations:
    (1) The name of the cargo as listed in table 1.
    (2) A description of the cargo's appearance and color.
    (3) Hazards in handling the cargo.
    (4) Any special handling procedures for the cargo, such as inerting.
    (5) Procedures to follow if the cargo spills or leaks.
    (6) Procedures for treating a person exposed to the cargo.
    (7) A list of fire fighting procedures and extinguishing agents
effective with cargo fires.
    (8) Shipper's name.
    (9) Loading point.
    (10) Approximate quantity of cargo.
    (11) Tank in which the cargo is located.
    (12) The name of an agent in the United States authorized to accept
service of legal process for the vessel.
    (b) The master shall make sure that the following information for
cargoes other than those carried under this part is readily available on
the tankship:
    (1) The name of the cargo as listed in Table 4 of Part 154 of this
chapter or Sec. 30.25-1 of this chapter if the cargo is listed in one
of these two tables.
    (2) The name of the cargo prescribed in the letter authorizing
carriage of the cargo under Sec. 153.900(d) if the cargo is a hazardous
or flammable cargo authorized for carriage under that section.
    (3) The shipper's name for the cargo and the name of the shipper if
the cargo is neither a hazardous nor flammable cargo.

[CGD 81-078, 50 FR 21174, May 22, 1985; as amended by CGD 88-100, 54 FR
40042, Sept. 29, 1989]



Sec. 153.908  Cargo viscosity and melting point information; measuring
cargo temperature during discharge: Categories A, B, and C.

    (a) The person in charge of the ship may not accept a shipment of a
Category A, B, or C NLS cargo having a reference to this paragraph in
the ``Special Requirements'' column of Table 1 unless the person has,
from the cargo's manufacturer or the person listed as the shipper on the
bill of lading, a written statement of the following:
    (1) For Category A or B NLS, the cargo's viscosity at 20 [deg]C in
mPa.s and, if the cargo's viscosity exceeds 25 mPa.s at 20 [deg]C, the
temperature at which the viscosity is 25 mPa.s.
    (2) For Category C NLS, the cargo's viscosity at 20 [deg]C in mPa.s
and, if the cargo's viscosity exceeds 60 mPa.s at 20 [deg]C, the
temperature at which the viscosity is 60 mPa.s. If the cargo's viscosity
varies from shipment to shipment, the maximum viscosity and maximum
temperature values may be supplied.
    (b) The person in charge of the ship may not accept a shipment of a
Category A, B, or C cargo having a reference to this paragraph in the
``Special Requirements'' column of Table 1 unless the person has a
written statement of the cargo's melting point in [deg]C from the
cargo's manufacturer or the person listed as the shipper on the bill of
lading. If the cargo's melting point varies from shipment to shipment,
the highest melting point may be supplied.
    (c) The person in charge of the ship shall ensure that the cargo
temperature is read and recorded in the Cargo Record Book following the
procedures in paragraph (d) of this section when a

[[Page 227]]

cargo having a reference to paragraph (a) or (b) of this section in the
``Special Requirements'' column of Table 1 is unloaded.
    (d) The cargo temperature measured in paragraph (c) of this section
must be made using the following procedure:
    (1) Each reading must be made with the sensor or thermometer
required by Sec. 153.440(a)(3) or (c). If a portable thermometer is
used, it must be located as prescribed for the temperature sensor in
Sec. 153.440(a)(3).
    (2) A total of 2 readings must be made, the first reading to be made
no more than 30 minutes after cargo transfer begins and the second
reading no more than 30 minutes before the main cargo pump is shut down.
    (3) The cargo's temperature is the average of the 2 readings made
under paragraph (d)(2) of this section.

[CGD 81-101, 52 FR 7784, Mar. 12, 1987]



Sec. 153.909  Completing the Cargo Record Book and record retention:
Categories A, B, C, and D.

    (a) The person in charge of a ship shall ensure that the Cargo
Record Book required under Sec. 153.490 is completed immediately after
any of the following occurs:
    (1) An NLS cargo is loaded.
    (2) An NLS cargo is transferred between tanks on a ship.
    (3) An NLS cargo is unloaded from a tank.
    (4) A tank that last carried an NLS cargo is prewashed under this
part.
    (5) A tank that last carried an NLS cargo is washed, except as
reported under paragraph (a)(4) of this section, cleaned, or ventilated.
    (6) Washings from a tank that last carried an NLS cargo are
discharged to the sea.
    (7) Tanks that last carried an NLS cargo are ballasted.
    (8) Ballast water is discharged to the sea from a cargo tank that
last carried an NLS.
    (9) An NLS cargo or NLS residue is discharged to the sea by accident
or except as allowed by this part.
    (10) A Surveyor is present during an operation that this part
requires the presence of a Surveyor.
    (11) NLS residue or NLS cargo is transferred from cargo pumproom
bilges or transferred to an incinerator.
    (12) A waiver is issued to the ship, ship owner, ship operator, or
person in charge of the ship under this part.
    (13) The concentration of a Category A NLS residue is measured under
Sec. 153.1120(a).
    (14) Any discharge recording equipment required by Sec.
153.481(b)(2) fails.
    (b) The person in charge of the ship shall ensure that the Cargo
Record Book is on board and readily available for inspection and copying
by the Coast Guard and when the ship is a U.S. ship in the waters of a
foreign country whose Administration is signatory to MARPOL 73/78, the
authorities of that country.
    (c) Each officer in charge of an operation listed under paragraph
(a) of this section, and each Surveyor observing an operation that this
part requires the presence of a Surveyor, shall attest to the accuracy
and completeness of each Cargo Record Book entry concerning those
operations by signing after each entry.
    (d) After all the entries on a page of the Cargo Record Book are
completed, and if the person in charge of the ship agrees with the
entries, the person in charge of the ship shall sign the bottom of that
page.
    (e) The ship owner or operator shall ensure that--
    (1) Each Cargo Record Book is retained on board the ship for at
least 3 years after the last entry; and
    (2) Each discharge recording required by Sec. 153.1126(b)(1) is
retained on board the ship for at least three years.

[CGD 81-101, 52 FR 7784, Mar. 12, 1987]



Sec. 153.910  Cargo piping plan.

    No person may operate a tankship unless the tankship has a cargo
piping plan that:
    (a) Shows all cargo piping on the tankship;
    (b) Shows all cargo valving, pumps, and other equipment that is used
during cargo transfer;
    (c) Shows the cargo tanks;
    (d) Shows any modifications necessary to a containment system that
is to be separated as prescribed under

[[Page 228]]

Part 150 of this subchapter, or Sec. Sec. 153.525 and 153.1020;
    (e) Emphasizes the piping and equipment described in paragraphs (a),
(b) and (d) of this section by using contrasting colors, line widths, or
similar methods; and
    (f) Shows the cargo loading rates chosen under Sec. 153.365(b) for
all applicable cargo lines.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21210, May 17, 1982]



Sec. 153.912  Certificate of inhibition or stabilization.

    (a) When a cargo in Table 1 is referred to this section, no person
may operate a tankship carrying the cargo without a written
certification, carried on the bridge of the tankship, from the shipper
that the cargo is:
    (1) Inhibited; or
    (2) Stabilized.
    (b) The certification required by this section must contain the
following information:
    (1) Whether the cargo is inhibited or stabilized.
    (2) The name and concentration of the inhibitor or stabilizer.
    (3) The date the inhibitor or stabilizer was added.
    (4) The length of time the inhibitor or stabilizer is effective.
    (5) Any temperature limitations qualifying the inhibitor's or
stabilizer's effective lifetime.
    (6) The action to be taken should the duration of the voyage exceed
the inhibitor's or stabilizer's useful life.

                 General Cargo Operational Requirements



Sec. 153.920  Cargo quantity limitations.

    (a) No person may load a cargo tank or operate a tankship that
carries a cargo tank containing in excess of 1250 m\3\ (approx. 44,138
ft\3\) of cargo requiring a type I containment system.
    (b) No person may load a cargo tank or operate a tankship that
carries a cargo tank containing in excess of 3000 m\3\ (approx. 105,932
ft\3\) of a cargo requiring a type II containment system.



Sec. 153.921  Explosives.

    No person may load, off-load, or carry a cargo listed in this part
on board a vessel that carries explosives unless he has the prior
written permission of the Commandant (CG-ENG).

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983]



Sec. 153.923  Inerting systems.

    The master shall ensure that the inert gas systems for any cargo
that this part requires to be inerted are operating correctly.

                          General Vessel Safety



Sec. 153.930  Cargo antidotes.

    No person may operate a tankship that carries a cargo listed in
Table 1 unless the tankship has on board the antidotes described for the
cargo in the Medical First Aid Guide for Use in Accidents Involving
Dangerous Goods, published by IMO.



Sec. 153.931  Obstruction of pumproom ladderways.

    The master shall ensure that all cargo pumproom ladderways are
unobstructed at all times.



Sec. 153.932  Goggles and protective clothing.

    (a) The master shall ensure that each person wear a face mask or
tight-fitting goggles for eye protection against splashing or spraying
liquids if that person is:
    (1) Sampling cargo;
    (2) Transferring cargo;
    (3) Making or breaking a cargo hose connection;
    (4) Gauging a cargo tank; or
    (5) Opening a cargo tank by opening a Butterworth hatch, ullage
hatch, cargo tank hatch, or similar opening.
    (b) The master shall ensure that each person wear a face mask or
tight-fitting goggles for eye protection against splashing or spraying
liquids if the person is:
    (1) In the area of the deck where the cargo tanks, cargo piping, and
cargo pumprooms are located while a cargo transfer is taking place; or
    (2) In a cargo pumproom, an enclosed space adjacent to a cargo tank,
or a

[[Page 229]]

space containing part of a cargo containment system.
    (c) The master shall ensure that each person in paragraphs (a) and
(b) of this section wear any additional protective clothing the master
believes necessary to protect the person from the cargo's hazards.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21210, May 17, 1982]



Sec. 153.933  Chemical protective clothing.

    When table 1 refers to this section, the following apply:
    (a) The master shall ensure that the following chemical protective
clothing constructed of materials resistant to permeation by the cargo
being handled is worn by all personnel engaged in an operation listed in
paragraph (b) of this section:
    (1) Splash protective eyewear.
    (2) Long-sleeved gloves.
    (3) Boots or shoe covers.
    (4) Coveralls or lab aprons.

    Note: ``Guidelines for the Selection of Chemical Protective
Clothing'', Third Edition, 1987, available from the American Conference
of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive,
Cincinnati, OH 45240-1634, provides information on the proper clothing
for the cargo being handled.

    (b) This section applies during the following operations:
    (1) Sampling cargo.
    (2) Transferring cargo.
    (3) Making or breaking cargo hose connections.
    (4) Gauging a cargo tank, unless gauging is by closed system.
    (5) Opening cargo tanks.
    (c) Coveralls or lab aprons may be replaced by splash suits or
aprons constructed of light weight or disposable materials if, in the
judgment of the master--
    (1) Contact with the cargo being handled is likely to occur only
infrequently and accidentally; and
    (2) The splash suit or apron is disposed of immediately after
contamination.
    (d) Splash protective eyewear must be tight-fitting chemical-splash
goggles, face shields, or similar items intended specifically for eye
protection from chemical splashing or spraying.
    (e) The master shall ensure that each person in the vicinity of an
operation listed in paragraph (b) of this section or in the vicinity of
tanks, piping, or pumps being used to transfer the cargo wears splash
protective eyewear under paragraph (d) of this section.

[CGD 88-100, 54 FR 40042, Sept. 29, 1989; as amended by USCG-1999-6216,
64 FR 53227, Oct. 1, 1999]



Sec. 153.934  Entry into spaces containing cargo vapor.

    (a) No person may enter a cargo tank, cargo handling space, pumproom
or enclosed space in the cargo area without the permission of the
master.
    (b) Before permitting anyone to enter a cargo tank, cargo handling
space, pumproom or other enclosed space in the cargo area, the master
shall make sure that:
    (1) The space is free of toxic vapors and has sufficient oxygen to
support life; or
    (2) Those entering the space wear protective equipment with self-
contained breathing apparatus as described in Sec. 153.214(b) and an
officer closely supervises the entire operation.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21210, May 17, 1982]



Sec. 153.935  Opening of tanks and cargo sampling.

    (a) Except as provided in paragraph (b) of this section, the master
shall ensure that all cargo tank hatches, ullage openings, and tank
cleaning openings are tightly closed at all times.
    (b) The master may not authorize the opening of a cargo tank,
except:
    (1) To clean a tank;
    (2) To transfer a cargo that Table 1 allows in a containment system
having an open gauging system;
    (3) To sample a cargo that Table 1 allows in a containment system
having an open gauging system; or
    (4) To sample a cargo that Table 1 allows in a containment system
having a restricted gauging system if:
    (i) The tank is not being filled during sampling;
    (ii) The vent system has relieved any pressure in the tank;

[[Page 230]]

    (iii) The person sampling the cargo wears the protective clothing
required during cargo transfer; and
    (iv) The tank is closed tightly following sampling.
    (c) The master shall make sure that cargoes requiring closed gauging
are sampled only through the controlled sampling arrangement required by
Sec. 153.404(d).

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21210, May 17, 1982]



Sec. 153.935a  Storage of cargo samples.

    (a) The master shall make sure that any cargo samples are stored in:
    (1) A designated and ventilated space in the cargo area of the
vessel; or
    (2) An area approved by the Commandant (CG-ENG) or the tankship's
flag administration for the stowage of cargo samples.
    (b) The master shall make sure that cargo sample bottles are stored:
    (1) In a way that prevents shifting of the sample bottles when the
vessel is at sea;
    (2) In bins or containers constructed of materials that are
resistant to the cargo samples; and
    (3) Apart from other sample bottles containing incompatible liquids
(See part 150, subpart A).

[CGD 78-128, 47 FR 21211, May 17, 1982, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 153.936  Illness, alcohol, drugs.

    The master shall ensure that no person participates in cargo related
operations who appears to be intoxicated by alcohol or drugs or to be so
ill as to be unfit for the particular operation.

                     Marking of Cargo Transfer Hose



Sec. 153.940  Standards for marking of cargo hose.

    No person may mark a hose assembly as meeting the standards of this
section unless the hose assembly meets the following requirements:
    (a) Each hose assembly must have:
    (1) Fully threaded connections;
    (2) Flanges that meet ANSI B16.5, B16.24, or B16.31; or
    (3) Class 1 quick-disconnect couplings that comply with ASTM F 1122
(incorporated by reference, see Sec. 153.4), and are marked ``C1-1.''
    (b) Each hose assembly must be marked with the:
    (1) Date of manufacture;
    (2) Working pressure described in paragraph (d) of this section;
    (3) Date of the last test made as prescribed in paragraph (e) of
this section; and
    (4) Manufacturer's recommended maximum and minimum temperatures.
    (c) A cargo hose assembly must have a minimum bursting pressure as
stated by the manufacturer of at least 5152 kPa gauge (approx. 750
psig).
    (d) The working pressure marked on a hose must meet the following:
    (1) Be at least 1030 kPa gauge (approx. 150 psig).
    (2) Not exceeded 20 per cent (one-fifth) of the manufacturer's
stated bursting pressure.
    (3) Not exceed the manufacturer's recommended working pressure.
    (4) Not exceed the test pressure used in the latest test under
paragraph (e)(3) of this section.
    (e) A cargo hose assembly must be inspected and tested by placing it
in a straight, horizontal position so that its entire external surface
is accessible. It must be ascertained that the hose assembly:
    (1) Has no loose covers, kinks, bulges, soft spots, and no gouges,
cuts, or slashes that penetrate any hose reinforcement;
    (2) Has no external and, to the extent internal inspection is
possible with both ends of the hose open, no internal deterioration; and
    (3) Does not burst, bulge, leak, or abnormally distort under static
liquid pressure at least as great as the recommended working pressure.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21211, May 17, 1982; CGD 88-032, 56 FR 35827, July 29, 1991; USCG-2000-
7790, 65 FR 58463, Sept. 29, 2000; USCG-2014-0688, 79 FR 58284, Sept.
29, 2014]

                        Cargo Transfer Procedures



Sec. 153.953  Signals during cargo transfer.

    The master shall ensure that:
    (a) The tankship displays a red flag in the day and a red light at
night

[[Page 231]]

when transferring cargo while fast to a dock;
    (b) The tankship displays a red flag when transferring cargo while
at anchor; and
    (c) The red flag or the red light is visible from all sides of the
tankship.



Sec. 153.955  Warning signs during cargo transfer.

    (a) When transferring cargo while fast to a dock or at anchor in
port, the master shall ensure that the tankship displays a warning sign
at the gangway facing the shore so that it may be seen from the shore
and another warning sign facing outboard toward the water so that it may
be seen from the water. (See figure 1).
    (b) Except as provided in paragraph (f) of this section, each
warning sign must have the following legends:
    (1) Warning.
    (2) Dangerous Cargo.
    (3) No Visitors.
    (4) No Smoking.
    (5) No Open Lights.
    (c) Each letter must be block style, black on a white background.
    (d) Each letter must:
    (1) Be 7.5 cm (approx. 3 in.) high;
    (2) Be 5 cm (approx. 2 in.) wide except for ``M'' and ``W'' which
must be 7.5 cm (approx. 3 in.) wide and the letter ``I'' which may be
1.3 cm (approx. \1/2\ in.) wide; and
[GRAPHIC] [TIFF OMITTED] TC02FE91.082

    (3) Have 1.3 cm (approx. \1/2\ in.) stroke width.
    (e) The spacing must be:
    (1) 1.3 cm (approx. \1/2\ in.) between letters of the same word;
    (2) 5 cm (approx. 2 in.) between words;
    (3) 5 cm (approx. 2 in.) between lines; and
    (4) 5 cm (approx. 2 in.) at the borders of the sign.
    (f) Except as described in Sec. 153.1045, the legends ``No
Smoking'' and ``No Open Lights'' are not required when the cargoes on
board the tankship are neither flammable nor combustible.



Sec. 153.957  Persons in charge of transferring liquid cargo in bulk or
cleaning cargo tanks.

    (a) The owner and operator of the vessel, and his or her agent, and
each of them, shall ensure that--
    (1) Enough ``Tankerman-PICs'' or restricted ``Tankerman-PICs'', and
``Tankerman-Assistants'', authorized for the classification of cargo
carried, are on duty to safely transfer liquid cargo in bulk or to
safely clean cargo tanks;
    (2) Each transfer of liquid cargo in bulk and each cleaning of a
cargo tank is supervised by a qualified person designated as a person in
charge of the

[[Page 232]]

transfer or the cleaning under Subpart C of 33 CFR part 155;
    (3) When cargo regulated under this part is due for transfer, the
person in charge of the transfer has received special training in the
particular hazards associated with the cargo and in all special
procedures for its handling; and
    (4) On each foreign vessel, the person in charge understands his or
her responsibilities as described in this subchapter.
    (b) Upon request by the Officer in Charge, Marine Inspection, in
whose zone the transfer will take place, the owner and operator of the
vessel, and his or her agent, and each of them, shall provide
documentary evidence that the person in charge has received the training
specified by paragraph (a)(3) of this section and is capable of
competently performing the procedures necessary for the cargo.

[CGD 79-116, 60 FR 17158, Apr. 4, 1995]



Sec. 153.959  Approval to begin transfer operations required.

    No person may make connections for cargo transfer or transfer cargo
unless he has authorization from the person in charge of cargo transfer.



Sec. 153.964  Discharge by gas pressurization.

    The person in charge of cargo transfer may not authorize cargo
discharge by gas pressurization unless:
    (a) The tank to be offloaded has an SR or PV venting system;
    (b) The pressurization medium is either the cargo vapor or a
nonflammable, nontoxic gas inert to the cargo; and
    (c) The pressurizing line has:
    (1) A pressure reducing valve whose setting does not exceed 90% of
the tank's relief valve setting and a manual control valve between the
pressure reducing valve and the tank; or
    (2) For an inert gas medium:
    (i) A safety relief valve with a cross sectional flow area at least
equal to that of the pressurizing line and whose relieving pressure does
not exceed 90 percent of the tank's relief valve setting;
    (ii) A manual control valve between the safety relief valve and the
tank; and
    (iii) A check valve between the manual control valve and the tank.



Sec. 153.966  Discharge by liquid displacement.

    The person in charge of cargo transfer may not authorize cargo
discharge by liquid displacement unless the liquid supply line to the
tank has:
    (a) A safety relief or pressure reducing valve set to operate at no
more than 80 percent of the tank's relief valve setting; and
    (b) A manual control valve between the tank and the supply line's
safety relief valve or pressure reducing valve.



Sec. 153.968  Cargo transfer conference.

    (a) Before he may begin making connections for cargo transfer, the
person in charge of cargo transfer shall confer with the person
supervising the cargo transfer at the facility.
    (b) The person in charge of cargo transfer shall discuss the
important aspects of the transfer operation, such as the following, with
the supervisor at the facility:
    (1) The products to be transferred.
    (2) The cargo loading rates marked on the cargo piping plan or the
maximum safe transfer rates.
    (3) The critical or hazardous stages of the transfer operation.
    (4) The emergency procedures in case of a spill.
    (5) If the vessel is equipped with the tank overflow alarm
prescribed in Sec. 153.408(c), a procedure for shutdown of shore pumps,
shore valves, and ship's valves that prevents piping system pressures
from exceeding those for which the piping system is designed.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21211, May 17, 1982; CGD 81-078, 50 FR 21174, May 22, 1985]



Sec. 153.970  Cargo transfer piping.

    The person in charge of cargo transfer shall ensure that:
    (a) Cargo is transferred to or from a cargo tank only through the
tankship's cargo piping system;
    (b) Vapor not returned to shore through the tankship's vapor return
system is discharged at the height required for the cargo's vent riser
in Table 1, and

[[Page 233]]

    (c) All cargo vapor is returned to shore through the valved
connection on the venting system if:
    (1) The cargo requires closed gauging, is referenced to Sec.
153.372 or is referenced to Sec. 153.525;
    (2) The transfer terminal has vapor return equipment; and
    (3) In his estimation the vapor return equipment is adequate to
handle the vapor expected from the tank.



Sec. 153.972  Connecting a cargo hose.

    The person in charge of cargo transfer may not authorize the
connection of a hose to a cargo containment system unless:
    (a) He has ensured himself that the cargo will not weaken or damage
the hose;
    (b) The hose is marked as meeting the standards of Sec. 153.940;
    (c) The date of the hose's last pressure test is within one year of
the date on which the hose is used to transfer cargo;
    (d) The recommended working pressure marked on a hose used for
discharge meets or exceeds the working pressure marked on the cargo
piping at the hose connection; and
    (e) The cargo's temperature is within the manufacturer's recommended
maximum and minimum hose temperatures.



Sec. 153.975  Preparation for cargo transfer.

    The person in charge of cargo transfer may not approve or continue
cargo transfer unless the following conditions are met:
    (a) No fires or open flames are on deck or in compartments near the
hose connections when Table 1 requires the cargo's containment system to
have a fire protection system.
    (b) Any electrical bonding of the tankship to the transfer facility
is made before the cargo transfer piping is joined.
    (c) Any supplemental inert gas supply necessary to maintain the 3.5
kPa gauge (approx. 0.5 psig) pressure in the tank during offloading (see
Sec. 153.500) is connected to the inert gas pressure control system.
    (d) The transfer connections have enough slack to allow for vessel
movement.
    (e) The transfer connections are supported by tackles.
    (f) The cargo high level alarms, tank overflow alarms and overflow
control systems are functioning correctly when the cargo is loaded.
    (g) Joints and couplings are gasketed and mated tightly.
    (h) Flanges are bolted tightly.
    (i) No repair work is underway in areas where cargo or cargo vapors
may collect.
    (j) Cargo and sea valves are properly set, with those sea valves
connected to cargo piping lashed or sealed shut.
    (k) Venting system bypass valves are set for cargo transfer and are
operating properly.
    (l) All scuppers are plugged.
    (m) Smoking is limited to safe places.
    (n) Fire fighting and safety equipment is ready.
    (o) He is in effective communication with the transfer terminal.
    (p) The person in charge of the transfer terminal has acknowledged
that he is ready to transfer.
    (q) Pressures within the cargo transfer and containment systems do
not exceed the pressure ranges for which the transfer hose and
containment systems are designed.
    (r) No vessels that would hazard cargo transfer are alongside the
tankship.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21211, May 17, 1982]



Sec. 153.976  Transfer of packaged cargo or ship's stores.

    The person in charge of cargo transfer may neither begin nor
continue the transfer of a flammable or combustible cargo while packaged
cargo or ship's stores are transferred unless transfer of the packaged
cargo or ship's stores does not hazard transfer of the flammable or
combustible cargo.



Sec. 153.977  Supervision of cargo transfer.

    The person in charge of cargo transfer shall:

[[Page 234]]

    (a) Supervise the operation of cargo system valves;
    (b) Monitor the cargo loading rate to ensure it does not exceed that
stated on the cargo piping plan; and
    (c) Monitor the cargo level in the tanks to make sure they do not
overflow.

[CGD 78-128, 47 FR 21211, May 17, 1982]



Sec. 153.979  Gauging with a sounding tube.

    (a) No person may remove the cover of a sounding tube unless he has
authorization from the person in charge of cargo transfer.
    (b) The person in charge of cargo transfer may not authorize removal
of the cover from a sounding tube gauge unless all tank pressure has
been relieved through the tank's venting system.



Sec. 153.980  Isolation of automatic closing valves.

    The person in charge of cargo transfer may isolate automatic closing
valves described in Sec. 153.408(b) from a cargo containment system if
the following conditions are met:
    (a) The containment system carries products to which Sec. 153.408
does not apply.
    (b) The valves are isolated by:
    (1) Removing the valves; or
    (2) Installing removable pipes and blind flanges to by-pass the
valves.

[CGD 78-128, 47 FR 21211, May 17, 1982]



Sec. 153.981  Leaving room in tank for cargo expansion.

    The person in charge of cargo transfer shall ensure that the amount
of cargo in a tank does not exceed the tank's capacity at any ambient
temperature between -18 [deg]C (approx. 0 [deg]F) and 46 [deg]C (approx.
115 [deg]F).



Sec. 153.983  Termination procedures.

    Upon completion of the transfer operation, the person in charge of
cargo transfer shall ensure that:
    (a) The cargo transfer connections are closed off;
    (b) The transfer lines and hoses are drained of cargo, either into
the tank or back to the transfer terminal;
    (c) Any electrical bonding between the vessel and the shore facility
is broken only after the cargo hose is disconnected and all spills
removed; and
    (d) Each vent system is returned to its nonloading configuration.

                        Special Cargo Procedures



Sec. 153.1000  Special operating requirements for cargoes reactive with
water.

    When Table 1 refers to this section, the master must ensure that the
cargo:
    (a) Is carried only in a containment system completely isolated from
any systems containing water, such as slop tanks, ballast tanks, cargo
tanks containing slops or ballast, their vent lines or piping; and
    (b) Is separated by double walls, such as cofferdams and piping
tunnels, from any system containing water, as for example those
described in paragraph (a) of this section.



Sec. 153.1002  Special operating requirements for heat sensitive
cargoes.

    When Table 1 refers to this section, the master shall make sure
that:
    (a) The cargo temperature is maintained below the temperature that
would induce polymerization, decomposition, thermal instability,
evolution of gas or reaction of the cargo;
    (b) Any heating coils in the cargo tank are blanked off; and
    (c) The cargo is not carried in uninsulated deck tanks.

[CGD 78-128, 47 FR 21211, May 17, 1982]



Sec. 153.1003  Prohibited carriage in deck tanks.

    When Table 1 refers to this section, cargoes may not be carried in
deck tanks.

[CGD 95-900, 60 FR 34050, June 29, 1995]



Sec. 153.1004  Inhibited and stabilized cargoes.

    (a) Before loading a cargo containment system with a cargo
referenced to this section in Table 1, the person in charge of cargo
transfer shall make sure that the cargo containment system is free of
contaminants that could:
    (1) Catalyze the polymerization or decomposition of the cargo; or

[[Page 235]]

    (2) Degrade the effectiveness of the inhibitor or stabilizer.
    (b) The master shall make sure that the cargo is maintained at a
temperature which will prevent crystallization or solidification of the
cargo.

[CGD 78-128, 47 FR 21211, May 17, 1982]



Sec. 153.1010  Alkylene oxides.

    (a) Before each loading of a cargo containment system with a cargo
referenced to this section in Table 1, the person in charge of cargo
transfer shall:
    (1) Unless the tankship is equipped with independent cargo piping
that meets paragraph (d) of this section:
    (i) Obtain verification from a Coast Guard Marine Inspector or from
a representative of the tankship's flag administration that separation
of the alkylene oxide piping system complies with alkylene oxide
handling plans approved by the Coast Guard or the tankship's flag
administration; and
    (ii) Make sure that each spectacle flange and blank flange
connection that is required to separate alkylene oxide piping systems
from other systems has a wire and seal attached by a Coast Guard Marine
Inspector or a representative of the tankship's flag administration.
    (2) Purge the containment system until the oxygen content of the
cargo tank is less than 2% by volume.
    (b) The person in charge of an alkylene oxide cargo transfer shall
ensure that:
    (1) No alkylene oxide vapor or liquid is released to the atmosphere
during cargo transfer;
    (2) No vapor return system connected to an alkylene oxide
containment system is at the same time connected to another containment
system;
    (3) Alkylene oxide is discharged only by an intank cargo pump or
inert gas displacement;
    (4) Transfer hose is approved by the Commandant (CG-ENG) under Sec.
153.530(o) for alkylene oxide transfer and is marked ``For Alkylene
Oxide Transfer Only''; and
    (5) A water hose is laid out on deck with water pressure to the
nozzle, and all alkylene oxide spillages are washed away immediately.
    (c) While alkylene oxides are onboard the vessel, the master shall
make sure that the oxygen content of the vapor space above the alkylene
oxide and those spaces specified in Sec. 153.530 (k) and (l) is
maintained below 2% by volume.
    (d) Tankships with independent piping for alkylene oxides must have
onboard:
    (1) Alkylene oxide handling plans approved by the Coast Guard or the
tankship's flag administration; and
    (2) Certification from the Coast Guard or the tankship's flag
administration that the cargo piping for alkylene oxides is independent.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21211, May 17, 1982; CGD 82-063b, 48 FR 4782, Feb. 3, 1983]



Sec. 153.1011  Changing containment systems and hoses to and from
alkylene oxide service.

    (a) The person in charge of cargo transfer shall make sure that:
    (1) No alkylene oxide is loaded into a containment system that last
carried a cargo other than an alkylene oxide unless the containment
system has been cleaned and inspected to make sure it is in good
condition with no heavy rust accumulations or traces of previous
cargoes;
    (2) No alkylene oxide is loaded into a containment system that
within the previous three loadings carried a cargo listed in paragraph
(b) of this section unless the containment system has been cleaned to
the satisfaction of a Coast Guard Marine Inspector or a person
specifically authorized by the Commandant (CG-ENG) to approve alkylene
oxide tank cleaning;
    (3) No cargo but an alkylene oxide is loaded into a containment
system which last carried an alkylene oxide unless the containment
system has been cleaned of alkylene oxide to the satisfaction of a Coast
Guard Marine Inspector or person specifically authorized by the
Commandant (CG-ENG) to approve alkylene oxide tank cleaning; and
    (4) No hose marked ``For Alkylene Oxide Transfer Only'' is used for
the transfer of a cargo other than an alkylene oxide.

[[Page 236]]

    (b) The following cargoes are particularly reactive with alkylene
oxides:
    (1) Non-oxidizing mineral acids (e.g. hydrochloric, phosphoric);
    (2) Sulfuric acid;
    (3) Nitric acid;
    (4) Organic acids (e.g. acetic, formic);
    (5) Halogenated organic acids (e.g. chloroacetic);
    (6) Sulfonic acids (e.g. alkyl benzene sulfonic);
    (7) Caustic alkalies (e.g. caustic soda, caustic potash; sodium
hydrosulfide);
    (8) Ammonia and ammonia solutions;
    (9) Aliphatic amines;
    (10) Alkanolamines; and
    (11) Oxidizing substances.

[CGD 78-128, 47 FR 21211, May 17, 1982, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 81-078, 50 FR 21174, May 22, 1985]



Sec. 153.1020  Unusually toxic cargoes.

    (a) No person may load or carry a cargo referenced to this section
in Table 1 unless the cargo's piping and venting systems are separated
from piping and venting systems carrying cargoes not referred to this
section.
    (b) The master shall ensure that no heat transfer medium that has
been circulated through a cargo referenced to this section in Table 1 is
circulated through a cargo not referenced to this section unless he
determines the medium to be uncontaminated with cargo.
    (c) No person may discharge overboard condensed steam from the
heating system of a cargo referenced to this section in Table 1 unless
he first determines the condensate to be uncontaminated with cargo.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21212, May 17, 1982]



Sec. 153.1025  Motor fuel antiknock compounds.

    (a) No person may load or carry any other cargo in a containment
system approved for motor fuel antiknock compounds containing lead
alkyls except a cargo to be used solely in the manufacture of motor fuel
antiknock compounds.
    (b) The master shall ensure that no person enter a pumproom or void
space that contains piping from a containment system approved for motor
fuel antiknock compounds containing lead alkyls unless:
    (1) The pumproom or void space atmosphere has been analyzed for its
lead (as Pb) content and found to be less than 0.075 mg/m\3\; or
    (2) The person follows the procedures for entering a cargo tank
described in paragraph (c) of this section.
    (c) No person may enter a cargo tank endorsed for motor fuel
antiknock compounds containing lead alkyls without prior specific
authorization from the Commandant (CG-ENG). This authorization may be
obtained by calling telephone number 202-372-1420 or e-mail
[email protected] if the person has previously obtained approval
for the cargo tank entry procedure from the Commandant (CG-ENG).
    (d) No person may enter a cargo tank endorsed for motor fuel
antiknock compounds if he does not follow the conditions in the
authorization under paragraph (c) of this section.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21212, May 17, 1982; CGD 82-063b, 48 FR 4782, Feb. 3, 1983; CGD 88-100,
54 FR 40042, Sept. 29, 1989; USCG-2006-25697, 71 FR 55747, Sept. 25,
2006; USCG-2012-0832, 77 FR 59785, Oct. 1, 2012]



Sec. 153.1035  Acetone cyanohydrin or lactonitrile solutions.

    No person may operate a tankship carrying a cargo of acetone
cyanohydrin or lactonitrile solutions, unless that cargo is stabilized
with an inorganic acid.

[CGD 88-100, 54 FR 40042, Sept. 29, 1989]



Sec. 153.1040  Carbon disulfide.

    (a) No person may load, carry, or discharge carbon disulfide unless
the cargo tank has a water pad over the cargo of at least one meter
(approx. 40 in.).
    (b) The person in charge of a carbon disulfide transfer operation
shall ensure that carbon disulfide is discharged only by displacement or
intank cargo pump.
    (c) No person may remove a cargo pump for a containment system that
carries carbon disulfide unless:
    (1) The containment system has a gas free certificate issued under
the standards in Sec. 35.01-1 of this chapter; or

[[Page 237]]

    (2) The vapor space in the pump well is filled with water.



Sec. 153.1045  Inorganic acids.

    When Table 1 refers to this section, the person in charge of cargo
transfer shall ensure that the legends ``NO SMOKING'' and ``NO OPEN
LIGHTS'' are displayed on the warning sign required in Sec. 153.955(a)
when cargo is transferred.



Sec. 153.1046  Sulfuric acid.

    No person may liquefy frozen or congealed sulfuric acid other than
by external tank heating coils.



Sec. 153.1052  Carriage of other cargoes in acid tanks.

    No person shall load or carry other cargoes in a cargo containment
system of a U.S. flag ship endorsed to carry sulfuric acid, hydrochloric
acid, or phosphoric acid without specific authorization from the
Commandant (CG-ENG).

[CGD 94-900, 59 FR 45139, Aug. 31, 1994, as amended by USCG-2014-0688,
79 FR 58284, Sept. 29, 2014]



Sec. 153.1060  Benzene.

    The person in charge of a Coast Guard inspected vessel must ensure
that the provisions of part 197, subpart C, of this chapter are applied.

[CGD 88-040, 56 FR 65006, Dec. 13, 1991]



Sec. 153.1065  Sodium chlorate solutions.

    (a) No person may load sodium chlorate solutions into a containment
system that previously carried another cargo unless the containment
system is thoroughly washed before loading.
    (b) The person in charge of cargo transfer shall make sure that
spills of sodium chlorate solutions are immediately washed away.

[CGD 81-078, 50 FR 21174, May 22, 1985]

 Approval of Surveyors and Handling of Categories A, B, C, and D Cargo
                             and NLS Residue

    Source: CGD 81-101, 52 FR 7785, Mar. 12, 1987, unless otherwise
noted.



Sec. 153.1100  Responsibility of the person in charge.

    The person in charge of the ship shall ensure that--
    (a) The requirements of Sec. Sec. 153.1102 through 153.1132 are
met; and
    (b) The procedures in the approved Procedures and Arrangements
Manual are followed.



Sec. 153.1101  Procedures for getting a Surveyor: Approval of Surveyors.

    (a) At least 24 hours before a Surveyor is needed, the person
wishing the services of a Surveyor must contact the Captain of the Port
or the Sector Office that has jurisdiction over the port at which the
Surveyor will be needed to--
    (1) Arrange for the Coast Guard to provide a Surveyor; or
    (2) Inform the Coast Guard of the selection of a Surveyor from one
of the organizations accepted by the Coast Guard to provide Surveyors.
    (b) Organizations may be accepted by the Coast Guard to provide
Surveyors if they--
    (1) Are engaged, as a regular part of their business, in performing
inspections or tests of bulk liquid cargo tanks or bulk liquid cargo
handling equipment;
    (2) Are familiar with the references in Sec. 153.0(b) and with the
requirements of this part;
    (3) Are not controlled by the owners or operators of ships needing
the services of the Surveyors or the facilities at which those ships
would unload cargo;
    (4) Are not dependent on Coast Guard acceptance under this section
to remain in business; and
    (5) Sign a Memorandum of Understanding with the Coast Guard.
    (c) Each application for acceptance as a Surveyor must be submitted
to the Commandant (CG-ENG) and must contain the following:
    (1) The name and address of the organization, including subsidiaries
and divisions, requesting acceptance by the Coast Guard to provide
Surveyors.
    (2) A statement that the organization is not controlled by the
owners or operators of ships needing the services of Surveyors or the
facilities at which

[[Page 238]]

these ships would unload, or a full disclosure of any ownership or
controlling interest held by such parties.
    (3) A description of the experience and qualifications of the
personnel who would be performing the function of Surveyor.
    (4) A statement that the persons who will be performing the function
of Surveyor have been trained in and are familiar with the requirements
of Annex II and the regulations in this part.
    (5) A statement that the Coast Guard may verify the information
submitted in the application and may examine the persons who will be
performing the function of Surveyor to determine their qualifications.
    (d) The acceptance of an organization may be terminated by the
Commandant if the organization fails to properly perform or supervise
the inspections required in this part.

[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by USCG-2006-25556,
72 FR 36330, July 2, 2007]



Sec. 153.1102  Handling and disposal of NLS residue: Categories A, B, C,
and D.

    (a) Except those Category A NLS residues that must be discharged
under paragraph (c) of this section, NLS residue from an NLS whose vapor
pressure is 5 kPa (50 mbar) or less at 20 [deg]C (68 [deg]F) must be--

    Note to paragraph (a): The Marine Protection, Research, and
Sanctuaries Act allows specific liquids to be discharged to the sea
under permits issued by the EPA.

    (1) Unloaded to any consignee;
    (2) Returned to the shipper;
    (3) Discharged to a reception facility;
    (4) Retained on the ship; or
    (5) Discharged to the sea under Sec. 153.1126 or Sec. 153.1128.
    (b) Except those Category A NLS residues that must be discharged
under paragraph (c) of this section, NLS residue from an NLS whose vapor
pressure is greater than 5 kPa (50 mbar) at 20 [deg]C must be--
    (1) Handled in the same way as the NLS residue under paragraph (a)
of this section; or
    (2) Ventilated following a ventilation procedure in the approved
Procedures and Arrangements Manual.

    Note: The Clean Air Act (42 U.S.C. 7401 et seq) allows states to
regulate emissions from tank ventilation. There may be other
regulations, both local and Federal, that affect the use of tank
ventilation for safety or environmental purposes.

    (c) NLS residue containing Category A NLS in pumproom bilges and in
spill trays at the manifold must be discharged to a reception facility.

[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.1104  Draining of cargo hose: Categories A, B, C, and D.

    Before a cargo hose used in discharging an NLS from a ship's cargo
tank is disconnected, the hose must be drained back to the transfer
terminal unless the tank unloading the cargo has a waiver under Sec.
153.483 or Sec. 153.491.

[CGD 81-101, 53 FR 28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.1106  Cleaning agents.

    No tank cleaning agent other than water or steam may be used to
clean an NLS residue from a cargo tank except as prescribed in the
approved Procedures and Arrangements Manual.



Sec. 153.1108  Heated prewash for solidifying NLS, high viscosity NLS
and required prewashes of NLS whose viscosity exceeds 25 mPa sec at

20 [deg]C: Categories A, B, and C.

    (a) When a high viscosity or solidifying cargo is unloaded from a
cargo tank, the cargo tank must be prewashed unless Sec. 153.1114 or
paragraph (c) of this section allows the prewash to be omitted.
    (b) When a prewash is required for a tank that has unloaded a
solidifying cargo or a cargo having a viscosity exceeding 25 mPa sec at
20 [deg]C, the wash water used in the prewash must leave the tank
washing machine at a temperature of at least 60 [deg]C (140 [deg]F).
    (c) The prewash required under paragraph (a) of this section may be
omitted if the approved Procedures and Arrangements Manual contains a
procedure for measuring the temperature of all interior cargo tank
surfaces throughout unloading and under the measuring procedure the
temperature of these surfaces remains above--

[[Page 239]]

    (1) The temperature of the cargo's melting point if the cargo is a
Category B or C solidifying NLS; or
    (2) The temperature at which the cargo's viscosity exceeds--
    (i) 25 mPa.s, if the cargo is a high viscosity Category B NLS; or
    (ii) 60 mPa.s, if the cargo is a high viscosity Category C NLS.

[81-101, 53 FR 28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.1112  Prewash for tanks containing Category A NLS residue.

    Unless Sec. 153.1114 allows the prewash to be omitted, a cargo tank
that unloads a Category A NLS cargo must be prewashed following the
procedures in Sec. 153.1120.



Sec. 153.1114  Conditions under which a prewash may be omitted:
Categories A, B, and C.

    A prewash required by this part may be omitted if one of the
following requirements is met:
    (a) A Surveyor has signed a statement in the Cargo Record Book that
the next cargo has been determined to be one that may be loaded without
washing the tank, and the tank is not washed or ballasted before it is
loaded with the next cargo.
    (b) A Surveyor has signed a statement in the Cargo Record Book that
the approved Procedures and Arrangements Manual contains procedures for
removing the NLS residue by ventilation, and the cargo tank is not
washed or ballasted before being cleaned following the ventilation
procedure.

    Note: The Clean Air Act (42 U.S.C. 7401 et seq.) allows states to
regulate emissions from tank ventilation. There may be other
regulations, both local and Federal, that affect the use of tank
ventilation for safety or environmental purposes.

    (c) The tank requiring the prewash has a waiver issued under Sec.
153.483 or Sec. 153.491 and the waiver states when the tank is to be
prewashed.



Sec. 153.1116  Prewash for tanks unloaded without following the approved
Procedures and Arrangements Manual: Categories B and C.

    If for any reason more Category B or C NLS residue remains in a
cargo tank and transfer piping of a ship after unloading than would
remain after a normal discharge of the cargo when the unloading
procedures in the approved Procedures and Arrangements Manual are
followed, the tank must be prewashed following the procedures in Sec.
153.1120 unless--
    (a) Section 153.1114 allows the prewash to be omitted; or
    (b) The residue is reduced using another procedure, and a Surveyor
estimates and states in the Cargo Record Book that the cargo tank and
transfer piping contain no more NLS residue than they would if
discharged following the procedures in the approved Procedures and
Arrangements Manual, and no other prewash is required by this part.



Sec. 153.1118  Prewash of Categories B and C cargo tanks not meeting
stripping standards: Categories B and C.

    (a) Unless Sec. 153.1114 allows the prewash to be omitted, a cargo
tank from which a Category B NLS is unloaded must be prewashed using the
procedures in Sec. 153.1120(b) if the tank--
    (1) Operates under the interim standard in Sec. 153.481(b); or
    (2) Has a waiver issued under Sec. 153.483.
    (b) Unless Sec. 153.1114 allows the prewash to be omitted, a cargo
tank from which a Category C NLS is unloaded must be prewashed using the
procedures in Sec. 153.1120(b) if the tank has a waiver issued under
Sec. 153.483.



Sec. 153.1119  When to prewash and discharge NLS residues from a
prewash; unloading an NLS cargo in a country whose Administration

is not signatory to MARPOL 73/78: Categories A, B, and C.

    (a) Except as allowed in paragraphs (b), (c), and (e) of this
section, each prewash required by this subpart must be completed and all
tank washings must be discharged to a reception facility before the ship
leaves the unloading port.
    (b) NLS residue from the prewash following the unloading of a
Category B NLS may be transferred to a slop tank for discharge under
Sec. 153.1126 instead of being discharged under paragraph (a) of this
section if the prewash is required solely under Sec. 153.1118(a)(1).

[[Page 240]]

    (c) A tank that is required by this part to be prewashed may be
prewashed in a port other than the unloading port if the following
conditions are met:
    (1) The person in charge requests permission from the Commandant
(CG-ENG) (tel num: 202-372-1420; email: [email protected]) if the
prewash port is a foreign port, or the Captain of the Port having
jurisdiction over the unloading port if the prewash port is a U.S. port.
    (2) The person in charge supplies with the request required under
paragraph (c)(1) of this section--
    (i) The name of the ship;
    (ii) The name of the owner;
    (iii) The name of the NLS;
    (iv) The approximate date the tank will be prewashed if the
relocation of the prewash port is for one time only;
    (v) A written agreement to receive the tank washings by a reception
facility in the prewash port;
    (vi) When the prewash port or terminal is in a country whose
Administration is signatory to MARPOL 73/78, a written attestation from
the person in charge of each prewash port or terminal that the
Administration has determined the port or terminal to have adequate
reception facilities for the NLS residue;
    (vii) Written pledges from the person in charge that--
    (A) The tank to be prewashed will not be washed or ballasted before
being prewashed; and
    (B) The ship will be taken to the reception facility and the tank
prewashed in accordance with the requirements in Sec. 153.1120; and
    (viii) Any additional information the Captain of the Port or
Commandant (CG-ENG) requests to evaluate granting the permission.
    (3) The Coast Guard or Commandant (CG-ENG) has granted the
permission in writing, the permission is carried aboard the ship, and
the person in charge of the ship has made an entry in the Cargo Record
Book stating that the permission has been granted.
    (d) Unless the permission granted under paragraph (c)(4) of this
section includes alternate conditions of termination or revocation in
writing, the permission is--
    (1) Terminated after the tank is prewashed as pledged in paragraph
(c)(3)(vii) of this section or loaded with another cargo;
    (2) Revoked if either of the pledges in paragraph (c)(3)(vii) of
this section is invalidated or the agreement in paragraph (c)(3)(v) of
this section is repudiated; and
    (3) Revoked at any time the ship is not operated in accordance with
the pledges in paragraph (c)(3)(vii) of this section and the conditions
listed with the granted permission.
    (e) A U.S. ship that would otherwise be required by this part to
prewash in a port without reception facilities must obtain permission
from Commandant (CG-ENG) to prewash in an alternate port.

[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by USCG-2006-25697,
71 FR 55747, Sept. 25, 2006; USCG-2014-0688, 79 FR 58284, Sept. 29,
2014]



Sec. 153.1120  Procedures for tank prewash: Categories A, B, and C.

    Except where the approved Procedures and Arrangements Manual
prescribes a different procedure, each of the following steps must be
done in the order listed for the Coast Guard to consider the tanks
prewashed under this part:
    (a) When this part requires a prewash of a tank containing Category
A NLS residue and the alternative prewash procedure in paragraph (b) of
this section is not used, the prewash must meet the following:
    (1) The prewash may not begin until--
    (i) A Surveyor is present; and
    (ii) Instrumentation or equipment is available that is capable of
measuring the concentration of the Category A NLS in the NLS residue and
determining whether it is below 0.1 per cent by weight.
    (2) The equipment specified in Sec. 153.484 must be used as
prescribed in the approved Procedures and Arrangements Manual for the
prewash.
    (3) The wash water must be heated if required by Sec. 153.1108, and
water or tank washings must pass through the cargo pump and piping,
including any stripping equipment, during washing or during discharge of
tank washings.

[[Page 241]]

    (4) The tank washing machine must be placed in all positions
specified for the tank's Category A NLS prewash procedure in the
approved Procedures and Arrangements Manual.
    (5) The tank must be pumped out each time there are enough tank
washings collected in the bottom of the tank for the pump to gain
suction, and if the NLS is immiscible with water or is a solidifying
cargo, all floating and suspended NLS must be discharged.
    (6) The washing machine must be operated until samples of the
discharged tank washings taken by the Surveyor are tested using the
equipment required by paragraph (a)(1)(ii) of this section and the
concentration of NLS is below 0.1 per cent by weight.
    (7) After the washing is stopped, the remaining tank washings must
be pumped out.
    (8) The Cargo Record Book must have items 12 through 14 completed
and must show the Surveyor's written certification of their accuracy.
    (9) The Cargo Record Book must have the Surveyor's written
concurrence that the prewash procedures specified in the approved
Procedures and Arrangements Manual were followed.
    (b) When this part requires a prewash of a tank containing Category
B or C NLS residue or when the procedure in this paragraph is used as an
alternative to the prewash procedure under paragraph (a) of this
section, the prewash must meet the following:
    (1) If the prewash is for a Category A NLS, the prewash may not
begin until a Surveyor is present.
    (2) The equipment specified in Sec. 153.484 must be used as
prescribed in the approved Procedures and Arrangements Manual for the
prewash.
    (3) The wash water must be heated if required by Sec. 153.1108, and
water or tank washings must pass through the cargo pump and piping,
including any stripping equipment, during washing or during discharge of
tank washings.
    (4) Except as required in paragraph (b)(5) of this section, the
number of washing machine cycles specified in Table 153.1120 must be
completed. If a prewash is required by a section listed under Column 1
of Table 153.1120 and another section listed under Column 2, the number
of cycles in Column 1 must be completed but no additional cycles are
necessary.
    (5) If the approved Procedures and Arrangements Manual specifies
that a tank washing machine must be moved for the prewash of a tank from
which a Category A NLS or a solidifying NLS has been unloaded, the
number of washing machine cycles specified in Table 153.1120 must be
completed at each position to which the washing machine is moved.
    (6) When the NLS is immiscible with water or is a solidifying cargo,
the tank must be pumped out each time enough tank washings collect in
the bottom of the tank for the pump to gain suction, or the procedures
in paragraphs (b)(3), (b)(4), and (b)(5) of this section must be
repeated two additional times with the tank pumped out each time, for a
total of three washings.
    (7) Items 12 through 14 in the Cargo Record Book must be completed
and, if the prewash is for a Category A NLS, verification that the
procedures specified in the approved Procedures and Arrangements Manual
were followed shown by the Surveyor's endorsement in the Cargo Record
Book.

     Table 153.1120--Number of Washing Machine Cycles in the Prewash
                                Procedure
------------------------------------------------------------------------
                                       Number of washing machine cycles
                                     -----------------------------------
                                          Column 1:
                                        Prewash under
                                       Sec. 153.1116      Column 2:
                                          or for a      Prewashes except
                                       solidifying NLS    those listed
                                         under Sec. under column 1
                                          153.1108
------------------------------------------------------------------------
Category A NLS......................                 2                 1
Category B or C NLS.................                 1               1/2
------------------------------------------------------------------------


[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28975, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.1122  Discharges of NLS residue from tank washing other than a
prewash: Categories A, B, and C.

    Tank washings that do not result from a prewash and that contain
Category A, B, or C NLS residues must be discharged to a reception
facility or discharged to the sea under Sec. 153.1126 or Sec. 153.1128
except those tank washings resulting from washing a tank that has been
cleaned following a ventilation procedure in the approved Procedures and
Arrangements Manual.

[[Page 242]]



Sec. 153.1124  Discharges of Category D NLS residue.

    NLS residue from Category D NLSs must be discharged to a reception
facility or discharged to the sea using the following procedure:
    (a) Before discharge begins, drain or flush the NLS residue in the
tank's piping systems into the tank.
    (b) After draining or flushing, discharge the NLS residue to the sea
in accordance with Sec. 153.1128 or transfer it to a slop tank and
discharge in accordance with Sec. 153.1126.



Sec. 153.1126  Discharge of NLS residue from a slop tank to the sea:
Categories A, B, C, and D.

    NLS residue in a slop tank may not be discharged into the sea
unless--
    (a) The ship meets the conditions for discharging the NLS residue
from a cargo tank in Sec. 153.1128; and
    (b) For Category B NLS residue transferred to the slop tank under
Sec. 153.1119(b), the NLS is discharged--
    (1) Through an NLS residue discharge system with the flow recording
equipment required in Sec. 153.481(b)(2) operating; and
    (2) At a rate maintained at or below Q in the following:
    For tank contents that are miscible
    [GRAPHIC] [TIFF OMITTED] TC13NO91.045

    For tank contents that are immiscible

Q=KU\1.4\ L\1.6\x10-5 m\3\/hr

where:

Q=maximum permissible slops discharge rate in cubic meters per hour.
V=volume of slops in the tank in cubic meters.
K=4.3, except K=6.45 if Q is distributed between two NLS residue
          discharge outlets on opposite sides of the ship (see
          Sec. Sec. 153.470(c) and 153.481(b)).
U=ship's speed in knots.
L=ship's length in meters.
N=number of tanks containing Category B NLS residue pumped into the slop
          tank.



Sec. 153.1128  Discharge of NLS residue from a cargo tank to the sea:
Categories A. B, C, and D.

    The discharge of NLS residue to the sea must be made with the ship
at least 22.24 km (12 nautical miles) from the nearest land, and must
meet the following additional conditions:
    (a) To discharge the following the ship must be in water at least 25
m (76.2 ft) deep:
    (1) Category B or C NLS residue diluted to less than 1 ppm of the
NLS.
    (2) Category B or C NLS residue resulting from washing a tank after
the following washing procedure has been completed:
    (i) If the tank is not required to be prewashed under this part, the
tank must be washed following the procedures that apply to a prewash of
a Category B NLS in Sec. 153.1120 using one washing machine cycle, and
the tank washings discharged to a reception facility or to the sea under
Sec. 153.1126 or paragraph (a)(1), (c) or (d) of this section.
    (ii) After the tank has been prewashed or has been washed under
paragraph (a)(2)(i) of this section, the tank must then be washed with
one cycle of the tank washing machine, and the tank washings discharged
to a reception facility or to the sea in accordance with Sec. 153.1126
or paragraph (a)(1), (c), or (d) of this section.
    (b) To discharge a Category D NLS residue to which 10 times its
volume in water is added and mixed, the ship must be--
    (1) If self-propelled, maintained at a speed of at least 12.97 km/hr
(7 knots); and
    (2) If not self-propelled, maintained at a speed of at least 7.41
km/hr (4 knots).
    (c) Each ship built before July 1, 1986 that discharges Category A,
B or C NLS residues before January 1, 1988 must be--
    (1) In water at least 25 m (76.2 ft) deep;
    (2) If discharging the residue of a Category A NLS cargo,
discharging only residue created by washing the Category A NLS's cargo
tank after a prewash;
    (3) If discharging the residue of a Category B NLS cargo,
discharging no more than the larger of 1 m\3\ or 1/3000th the volume of
the Category B cargo loaded;
    (4) If discharging the residue of a Category C NLS cargo,
discharging no more than the larger of 3 m\3\ of or

[[Page 243]]


1/1000th the volume of the Category C cargo loaded;
    (5) If self-propelled, maintained at a speed of at least 12.97 km/hr
(7 knots); and
    (6) If not self-propelled, maintained at a speed of at least 7.41
km/hr (4 knots).
    (d) To discharge Category A, B, C, or D NLS residue other than as
allowed under paragraphs (a) through (c) of this section, the ship must
be--
    (1) In water at least 25 m (76.2 ft) deep;
    (2) Discharging at a rate not exceeding that used for Qd
in Sec. 153.470;
    (3) If self-propelled, maintained at speed no less than the minimum
specified in the approved Procedures and Arrangements Manual but at
least 12.97 km/hr (7 knots);
    (4) If not self-propelled, maintained at a speed no less than the
minimum specified in the approved Procedures and Arrangements Manual but
at least 7.41 km/hr (4 knots);
    (5) If discharging the residue of a Category A NLS cargo,
discharging only residue created by washing the Category A NLS's cargo
tank after a prewash;
    (6) If discharging the residue of a Category B NLS cargo,
discharging no more than the larger of 1 m\3\ or 1/3000th the volume of
the Category B cargo loaded;
    (7) If discharging the residue of a Category C NLS cargo,
discharging no more than the larger of 3 m\3\ of or

1/1000th the volume of the Category C cargo loaded;
    (8) Discharging through an NLS residue discharge system meeting
Sec. 153.470.

[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by CGD 81-101, 53 FR
28976, Aug. 1, 1988 and 54 FR 12629, Mar. 28, 1989]



Sec. 153.1130  Failure of slops discharge recording equipment; operating
with, reporting failures, and replacing pollution equipment: Category

A, B, C, D.

    (a) If equipment required in Sec. Sec. 153.470 through 153.488
fails, the Coast Guard Marine Inspection Office, Sector Office, or
Captain of the Port must be notified within 24 hours after the failure.
    (b) No person shall replace a piece of equipment required by
Sec. Sec. 153.470 through 153.488 unless the replacement is--
    (1) Identical to the original equipment; or
    (2) Allowed as an alternative under Sec. 153.10.
    (c) The following conditions apply when discharge recording
equipment required under Sec. 153.481(b)(2) fails:
    (1) No NLS residue may be discharged unless the approved Procedures
and Arrangements Manual contains procedures for discharging with
incapacitated discharge recording equipment while meeting the discharge
restrictions of Sec. 153.1126(b) and these procedures are followed.
    (2) The failure of the discharge recording equipment must be
recorded in the Cargo Record Book within 24 hours after the failure.
    (3) If the ship operates under a Certificate of Inspection, the
failed discharge recording equipment must be repaired or replaced within
60 days after it fails, and the repair or replacement recorded in the
Cargo Record Book and reported to the Coast Guard within 24 hours after
it is completed.

[CGD 81-101, 52 FR 7785, Mar. 12, 1987, as amended by USCG-2006-25556,
72 FR 36330, July 2, 2007]



Sec. 153.1132  Reporting spills and non-complying discharges: Category
A, B, C, and D.

    The following shall be reported following the procedures applying to
oil in 33 CFR 151.15 (c), (d), (g), (h):
    (a) All discharges of the NLS that do not meet the requirements of
this part.
    (b) All spills into the water.

                               Maintenance



Sec. 153.1500  Venting system rupture disks.

    The master shall ensure that a relief valve exposed to a cargo after
the failure of a rupture disk or breaking pin is cleaned and operates
properly before the next cargo is loaded into the tank.



Sec. 153.1502  Fixed ballast relocation.

    No person may remove or relocate fixed ballast unless:
    (a) The change is approved by the Commandant (CG-ENG); or

[[Page 244]]

    (b) The ballast is temporarily moved under the supervision of a
Coast Guard Marine Inspector for examination or repair of the tankship.

[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 82-063b, 48
FR 4782, Feb. 3, 1983]



Sec. 153.1504  Inspection of personnel emergency and safety equipment.

    The master shall ensure that the personnel emergency and safety
equipment required by Sec. 153.214 is inspected each 30 days and found
to be in good condition and operating properly.



  Subpart D_Test and Calculation Procedures for Determining Stripping
          Quantity, Clingage NLS Residue, and Total NLS Residue

    Source: CGD 81-101, 52 FR 7788, Mar. 12, 1987, unless otherwise
noted.



Sec. 153.1600  Equipment required for conducting the stripping quantity
test.

    The operator shall ensure the stripping quantity test is conducted
with--
    (a) Equipment that maintains a backpressure of at least 100 kPa (1
atm) (gauge) at the connection of the discharge line of the tank to be
tested to the cargo transfer hose, including, but not limited to, piping
whose discharge is 10 m above the manifold or a constant pressure valve
in the discharge line and set at 100 kPa;
    (b) A container for measuring the volume of water remaining in the
tank to an accuracy of 5%;
    (c) A squeegee or broom to collect standing water on the tank floor;
    (d) One or more containers for collecting and transferring water;
and
    (e) One of the following for transferring the water remaining in the
tank to the measuring container:
    (1) A wet vacuum.
    (2) A positive displacement pump.
    (3) An eductor with an air/water separator in line.



Sec. 153.1602  Test procedure for determining the stripping quantity.

    (a) The stripping quantity of a tank must be determined by testing
the tank under the procedures in paragraph (b) of this section unless
the Coast Guard agrees under the provisions of Sec. 153.10 to accept
the stripping quantity, previously determined under paragraph (b) of
this section, of a tank having similar geometry, internal structure, and
piping system.
    (b) When testing a tank for stripping quantity, the owner or
operator of the ship shall proceed as follows:
    (1) Make arrangements with the Officer in Charge, Marine Inspection,
for a Coast Guard Marine Inspector to witness the stripping test.
    (2) Clean and gas free the tanks to be tested.
    (3) Determine the least favorable values of list and trim for
drainage within the range allowed by the approved Procedures and
Arrangements Manual.
    (4) Maintain the ship's list and trim during the test to that
determined under paragraph (b)(3) of this section.
    (5) Load the tank with enough water so that unloading the water
simulates the final stages of unloading a full tank of cargo.
    (6) Pump out the water and strip the tank using the procedures
specified in the approved Procedures and Arrangements Manual.
    (7) After shutting the manifold valve, open any cargo pump foot
valve to allow water trapped in the cargo pump to drain into the tank.
    (8) Open all valves in the piping system except the manifold valve
and allow the water to drain into the tank.
    (9) Squeegee or sweep the water drained under paragraphs (b)(7) and
(b)(8) of this section and any water that stands in puddles on the tank
floor to the tank's low point or sump and collect in the container
required by Sec. 153.1600(b) using the equipment required in Sec.
153.1600(e).
    (10) With the manifold valve still closed, drain any water remaining
in the piping system on the ship's side of the cargo transfer manifold
valve into containers, and add this water to that collected from the
tank under paragraph (b)(9) of this section. Water collected from a
cargo line serving a block of tanks may be prorated between all the
tanks it serves if--
    (i) The ship owner requests, under the provisions of Sec. 153.10,
that the water be prorated; and

[[Page 245]]

    (ii) The ship's approved Procedures and Arrangements Manual
specifies that no tank in the block be washed until all the tanks in the
block have been discharged.
    (c) Include any water that is trapped in dead end pipe sections,
either by--
    (1) Draining the pipe sections and adding the water to that
collected in the container under paragraphs (b)(9) and (b)(10) of this
section; or
    (2) Adding an estimate of the water's volume to the sum calculated
in paragraph (d) of this section using the pipe's dimensions, the ship's
list and trim, and the geometry of the piping system.
    (d) Measure the volume of water collected in the container under
paragraphs (b)(9), (b)(10), and (c)(1) of this section and add to that
volume the volume, if any, estimated under paragraph (c)(2) of this
section.

[CGD 81-101, 52 FR 7788, Mar. 12, 1987]



Sec. 153.1604  Determining the stripping quantity from the test results.

    (a) For a single test, the stripping quantity is the volume of water
calculated under Sec. 153.1602(d).
    (b) If multiple tests are made on a tank without modifications to
the tank, pumping system, or stripping procedure between the tests, the
stripping quantity must be taken as the average of the stripping
quantities for all of the tests.
    (c) If multiple tests are made on a tank with modifications to the
tank, pumping system, or stripping procedure between the tests, the
stripping quantity is the stripping quantity determined under paragraph
(b) of this section using only those tests performed after the last
modification.



Sec. 153.1608  Calculation of total NLS residue and clingage NLS
residue.

    (a) The total NLS residue for each tank is calculated by adding the
stripping quantity and the clingage NLS residue.
    (b) The clingage NLS residue for each tank is calculated using the
following formula:

Qclingage = 1.1 x 10-4 Ad + 1.5 x
10-5 Aw + 4.5 x 10-4 L\1/2\
Ab

where:

Ab=Area of the tank bottom added to the area in square meters
          of tank structural components projected on a horizontal
          surface
Ad=Area of the tank underdecks added to the area in square
          meters of tank structural components projected on a horizontal
          surface
Aw=Area of the tank walls added to the area in square meters
          of tank structural components projected on a vertical surface
L=Length of tank in meters from fore to aft
Qclingage=volume of clingage in cubic meters

When using the formula in this paragraph, areas that are inclined more
than 30[deg] from the horizontal may be assumed to be vertical.

    Note: The Commandant (CG-ENG) (telephone number 202-372-1420) has
information that may be useful in approximating surface areas of typical
structural members for the projected area calculations under Sec.
153.1608(b).

[CGD 81-101, 52 FR 7788, Mar. 12, 1987, as amended by USCG-2006-25697,
71 FR 55747, Sept. 25, 2006; USCG-2012-0832, 77 FR 59785, Oct. 1, 2012]

[[Page 246]]

          Table 1 to Part 153--Summary of Minimum Requirements

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                 IMO Annex
                                     II                 Cargo       Vent                                  Fire       Special requirements    Electrical
           Cargo name            Pollution    Haz.   containment   height      Vent        Gauge       protection     in 46 CFR Part 153    hazard class
                                  Category              system                                           system                               and group
--------------------------------------------------------------------------------------------------------------------------------------------------------
a.                                      b.       c.          d.        e.  f.           g.           h.             i.....................  j.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Acetic acid....................      D         S         III         4m    PV           Restr        A              .238(a), .409, .527,    I-D
                                                                                                                     .554, .933.
Acetic anhydride...............      D         S          II         4m    PV           Restr        A              .238(a), .409, .526,    I-D
                                                                                                                     .527, .554, .933.
Acetochlor.....................      A         P          II         NR    Open         Open         A              .409..................  NA
Acetone cyanohydrin............      A        S/P         II        B/3    PV           Closed       A              .238(a), .316, .336,    I-D
                                                                                                                     .408, .525, .526,
                                                                                                                     .527, .912(a)(2),
                                                                                                                     .933, .1002, .1004,
                                                                                                                     .1020, .1035.
Acetonitrile...................     III        S          II        B/3    PV           Restr        A              .409, .525, .526,       I-D
                                                                                                                     .1020.
Acrylamide solution (50% or          D         S          II         NR    Open         Closed       NSR            .409, .525(a), (c),     NA
 less).                                                                                                              (d), (e), .912(a)(1),
                                                                                                                     .1002(a), .1004,
                                                                                                                     .1020.
Acrylic acid...................      D         S         III         4m    PV           Restr        A              .238(a), .409, .526,    I-D
                                                                                                                     .912(a)(1), .933,
                                                                                                                     .1002(a), .1004.
Acrylonitrile..................      B        S/P         II        B/3    PV           Closed       A              .236(a), (c), (d),      I-D
                                                                                                                     .316, .408, .525,
                                                                                                                     .526, .527,
                                                                                                                     .912(a)(1), .1004,
                                                                                                                     .1020.
Adiponitrile...................      D         S         III         4m    PV           Restr        A              .526..................  I-D
Alachlor.......................      B        S/P        III         NR    Open         Open         A, C           .238(a), .409, .440,    NA
                                                                                                                     .488, .908(a), (b).
Alcohol (C6-C17) (secondary)         A         P          II         NR    Open         Open         A              .409..................  NA
 poly(3-6)ethoxylates.
Alcohol (C6-C17) (secondary)         B         P         III         NR    Open         Open         A              .409, .440, .908(a),    NA
 poly(7-12)ethoxylates.                                                                                              (b).
Alcohol(C9-C11) poly(2.5-9)          B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
 ethoxylate.
Alcohol(C12-C15)
 poly(...)ethoxylates, see
 Alcohol(C12-C16)
 poly(...)ethoxylates.
Alcohol(C12-C16) poly(1-             A         P          II         NR    Open         Open         A              .409..................  NA
 6)ethoxylates.
Alcohol(C12-C16) poly(7-             B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
 19)ethoxylates.
Alcohol(C12-C16)                     C         P         III         NR    Open         Open         A              None..................  NA
 poly(20+)ethoxylates.
Alkanes(C6-C9) (all isomers)...      C         P         III         4m    PV           Restr        A              .409..................  I-D
Alkane(C14-C17) sulfonic acid,       B         P         III         NR    Open         Open         NSR            .440, .908(a).........  NA
 sodium salt solution (65% or
 less).
Alkaryl polyether (C9-C20).....      B         P         III         NR    Open         Open         A, B           .409; (.440, .908(a))   NA
                                                                                                                     \1\.
Alkenyl(C16-C20) succinic            D         S         III        B/3    PV           Closed       NSR            .316, .408, .525,       NA
 anhydride.                                                                                                          .526, .1020.
Alkyl acrylate-Vinyl pyridine        C         P         III         4m    PV           Restr        A              .409..................  NA
 copolymer in Toluene.
Alkylaryl phosphate mixtures         A        S/P         I         B/3    PV           Closed       A, B, C        .316, .408, .525,       NA
 (more than 40% Diphenyl tolyl                                                                                       .526, .1020.
 phosphate, less than 0.02%
 ortho- isomer).
Alkyl(C3-C4)benzenes (all            A         P         III         4m    PV           Restr        A              .409..................  I-D
 isomers).
Alkyl(C5-C8)benzenes (all            A         P          II         NR    Open         Open         A              .409..................  I-D
 isomers).
Alkylbenzene, Alkylindane,           A         P          II         NR    Open         Open         A              .409..................  NA
 Alkylindene mixture (each C12-
 C17).
Alkylbenzenesulfonic acid            C        S/P        III         NR    Open         Open         A, B           .440, .908(a).........  NA
 (greater than 4%).

[[Page 247]]


Alkylbenzenesulfonic acid,           C         P         III         NR    Open         Open         NSR            .440, .903, .908(a),    NA
 sodium salt solution.                                                                                               (b).
Alkyl(C7-C9) nitrates..........      B        S/P         II         NR    Open         Open         A, B           .409, .560, .1002.....  NA
Alkyl (C7-C11) phenol poly(4-        B         P         III         NR    Open         Open         A              .409, .440, .488 \1\,   I-D
 12) ethoxylate.                                                                                                     .908(a), (b).
Alkyl(C8-C9) phenylamine in          A         P         III         4m    PV           Restr        A              .409..................  NA
 aromatic solvent.
Alkyl(C10-C20, saturated and         C         P         III         NR    Open         Open         A              None..................  NA
 unsaturated) phosphite.
Alkyl(C8-C10) polyglucoside          C         P         III         NR    Open         Open         NSR            .440, .908(a), (b)....  NA
 solution (65% or less).
Alkyl(C12-C14) polyglucoside         B         P         III         NR    Open         Open         NSR            .409, .440, .908(a),    NA
 solution (55% or less).                                                                                             (b).
Alkyl(C8-C10)/(C12-C14): (40%        B         P         III         NR    Open         Open         NSR            .409, .440, .908(a),    NA
 or less/60% or more)                                                                                                (b).
 polyglucoside solution (55% or
 less).
Alkyl(C8-C10)/(C12-C14): (50/        C         P         III         NR    Open         Open         NSR            .440, .908(a), (b)....  NA
 50%) polyglucoside solution
 (55% or less).
Alkyl(C8-C10)/(C12-C14): (60%        C         P         III         NR    Open         Open         NSR            .440, .908(a), (b)....  NA
 or more/40% or less)
 polyglucoside solution (55% or
 less).
Allyl alcohol..................      B        S/P         II        B/3    PV           Closed       A              .316, .408, .525,       I-C
                                                                                                                     .526, .527, .933,
                                                                                                                     .1020.
Allyl chloride.................      B        S/P         II        B/3    PV           Closed       A              .316, .408, .525,       I-D
                                                                                                                     .526, .527, .1020.
Aluminum chloride (30% or            D         S         III         4m    PV           Restr        NSR            .252, .526, .527,       I-B
 less), Hydrochloric acid (20%                                                                                       .554, .557, .933,
 or less) solution.                                                                                                  .1045, .1052.
2-(2-Aminoethoxy) ethanol......      D         S         III         NR    Open         Open         A, C, D        .236(b), (c), .409....  NA
Aminoethylethanolamine.........      D         S         III         NR    Open         Open         A              .236(a), (b), (c), (g)  NA
N-Aminoethylpiperazine.........      D         S         III         4m    PV           Restr        A              .236(b), (c), .409,     I-C
                                                                                                                     .526.
2-Amino-2-methyl-1-propanol          D         S         III         NR    Open         Open         A              .236(a), (b), (c), (g)  I-D
 (90% or less).
Ammonia aqueous (28% or less),
 see Ammonium hydroxide (28% or
 less NH3).
Ammonium bisulfite solution          D         S         III         4m    PV           Restr        No             .238(e), .526, .933,    NA
 (70% or less).                                                                                                      .1002.
Ammonium hydroxide (28% or less      C        S/P        III         4m    PV           Restr        A, B, C        .236(b), (c), (f),      I-D
 NH3).                                                                                                               .526, .527.
Ammonium nitrate solution            D         S          II         NR    Open         Open         NSR            .238(d), .252, .336,    NA
 (greater than 45% and less                                                                                          .409, .554(a), (b).
 than 93%).
Ammonium sulfide solution (45%       B        S/P         II        B/3    PV           Closed       A, C           .236(a), (b), (c),      I-D
 or less).                                                                                                           (g), .316, .408,
                                                                                                                     .525, .526, .527,
                                                                                                                     .933, .1002, .1020.
Ammonium thiocyanate (25% or         C         P         III         NR    Open         Open         NSR            None..................  NA
 less), Ammonium thiosulfate
 (20% or less) solution.
Ammonium thiosulfate solution        C         P         III         NR    Open         Open         NSR            .440, .908(b).........  NA
 (60% or less).
Amyl acetate (all isomers).....      C         P         III         4m    PV           Restr        A              .409..................  I-D
tert-Amyl methyl ether.........      C         P         III         4m    PV           Restr        A              .409..................  NA
Aniline........................      C        S/P         II        B/3    PV           Closed       A              .316, .408, .525,       I-D
                                                                                                                     .526, .933, .1020.
Anthracene oil (Coal tar
 fraction), see Coal tar.

[[Page 248]]


Aviation alkylates.............      C         P         III         4m    PV           Restr        B              .409..................  I-C
 (C8 paraffins and iso-
 paraffins, b. pt. 95-120 deg.
 C).
Barium long chain (C11-C50)          B        S/P         II         NR    Open         Open         A, D           .408, .440, .525(a),    NA
 alkaryl sulfonate.                                                                                                  (c), (e), (d),
                                                                                                                     .908(a), .1020.
Barium long chain alkyl (C8-        [A]        P          II         NR    Open         Open         A              .409..................  NA
 C14) phenate sulfide.
Benzene hydrocarbon mixtures       C \2\      S/P        III        B/3    PV           Closed       A, B           .316, .409, .440,       I-D
 \2\ (having 10% Benzene or                                                                                          .526, .908(b), .933,
 more).                                                                                                              .1060.
Benzenesulfonyl chloride.......      D         S         III         4m    PV           Restr        A, B, D        .236(a), (b), (c),      I-D
                                                                                                                     (g), .409, .526.
Benzene, Toluene, Xylene           @C \2\     S/P        III        B/3    PV           Closed       B              .316, .409, .440,       I-D
 mixtures \2\ (having 10%                                                                                            .526, .908(b), .1060.
 Benzene or more).
Benzyl acetate.................      C         P         III         NR    Open         Open         A              None..................  I-D
Benzyl alcohol.................      C         P         III         NR    Open         Open         A              None..................  I-D
Benzyl chloride................      B        S/P         II        B/3    PV           Closed       A, B           .316, .408, .525,       I-D
                                                                                                                     .526, .527,
                                                                                                                     .912(a)(2), .1004,
                                                                                                                     .1020.
Bromochloromethane.............      D         S         III         4m    PV           Restr        NSR            .236(a), (b), (d),      NA
                                                                                                                     .526, .933.
Butene oligomer................      B         P         III         NR    Open         Open         A              .409..................  NA
Butyl acetate (all isomers)....      C         P         III         4m    PV           Restr        A              .409..................  I-D
Butyl acrylate (all isomers)...      B        S/P         II         4m    PV           Restr        A              .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Butylamine (all isomers).......      C        S/P         II        B/3    PV           Restr        A              .236(b), (c), .316,     I-D
                                                                                                                     .408, .525, .526,
                                                                                                                     .527, .1020.
Butylbenzene (all isomers), see      A         P         III         4m    PV           Restr        A              .409..................  I-D
 Alkyl(C3-C4)benzenes (all
 isomers).
Butyl benzyl phthalate.........      A         P          II         NR    Open         Open         A              .409..................  I-D
n-Butyl butyrate, see Butyl
 butyrate (all isomers).
Butyl butyrate (all isomers)...      B         P         III         4m    PV           Restr        A              .409..................  I-D
1,2-Butylene oxide.............      C        S/P        III         4m    PV           Restr        A, C           .372, .409, .440,       I-B
                                                                                                                     .500, .526, .530(a),
                                                                                                                     (c), (e)-(g), (m)-
                                                                                                                     (o), .1010, .1011.
n-Butyl ether..................      C        S/P        III        B/3    PV           Restr        A, D           .409, .500, .525,       I-C
                                                                                                                     .526, .1020.
Butyl heptyl ketone............     [C]        P         III         NR    Open         Open         A              None..................  NA
iso-Butyl isobutyrate, see
 Butyl butyrate (all isomers).
Butyl methacrylate.............      D         S         III         4m    PV           Restr        A, D           .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Butyl methacrylate, Decyl            D         S         III         4m    PV           Restr        A, C, D        .912(a)(1), .1002(a),   I-D
 methacrylate, Cetyl-Eicosyl                                                                                         (b), .1004.
 methacrylate mixture.
n-Butyl propionate.............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Butyl toluene..................      @A        P          II         NR    Open         Open         A              .409..................  I-D
Butyraldehyde (all isomers)....      C        S/P        III         4m    PV           Restr        A              .409, .526............  I-C
Butyric acid...................      D         S         III         4m    PV           Restr        A              .238(a), .554.........  I-D
Calcium alkyl(C9)phenol              A         P          II         NR    Open         Open         A, B           .409..................  NA
 sulfide, polyolefin
 phosphorosulfide mixture.

[[Page 249]]


Calcium bromide, Zinc bromide
 solution, see Drilling brine
 (containing Zinc salts).
Calcium hypochlorite solution        C        S/P        III         4m    PV           Restr        NSR            .236(a), (b)..........  NA
 (15% or less).
Calcium hypochlorite solution        B        S/P        III         4m    PV           Restr        NSR            .236(a), (b), .409....  NA
 (more than 15%).
Calcium long chain alkyl(C5-         C         P         III         NR    Open         Open         A              None..................  NA
 C10) phenate.
Calcium long chain alkyl             C         P         III         NR    Open         Open         A, B           (.440, .903, .908(a))   NA
 salicylate (C13+).                                                                                                  \1\.
Camphor oil....................      B        S/P         II         4m    PV           Restr        A, B           .409..................  I-D
Carbolic oil...................      A        S/P         II        B/3    PV           Closed       A              .408, .440, .525,       NA
                                                                                                                     .526, .908(b), .933,
                                                                                                                     .1020.
Carbon disulfide...............      B        S/P         II        B/3    PV           Closed       C              .236(c), .252, .408,    I-A
                                                                                                                     .500, .515, .520,
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020, .1040.
Carbon tetrachloride...........      B        S/P        III        B/3    PV           Closed       NSR            .316, .409, .525,       NA
                                                                                                                     .526, .527, .1020.
Cashew nut shell oil                 D         S         III         4m    PV           Restr        A, B           .526, .933............  NA
 (untreated).
Caustic potash solution........      C        S/P        III         NR    Open         Open         NSR            .236(a), (c), (g),      NA
                                                                                                                     .933.
Caustic soda solution..........      D         S         III         NR    Open         Open         NSR            .236(a), (c), (g),      NA
                                                                                                                     .933.
Cetyl-Eicosyl methacrylate          III        S         III         NR    Open         Open         A, C, D        .912(a)(1), .1002(a),   NA
 mixture.                                                                                                            (b), .1004.
Chlorinated paraffins (C10-C13)      A         P          I          NR    Open         Open         A              .408..................  NA
Chloroacetic acid (80% or less)      C        S/P         II        B/3    PV           Closed       NSR            .238(e), .408, .440,    I-D
                                                                                                                     .554, .908(b).
Chlorobenzene..................      B        S/P        III         4m    PV           Restr        A, B           .409, .526............  I-D
Chloroform.....................      B        S/P        III        B/3    PV           Restr        NSR            .409, .525, .526,       NA
                                                                                                                     .527, .1020.
(crude) Chlorohydrins..........      D         S          II        B/3    PV           Closed       A              .408, .525, .526,       I-D
                                                                                                                     .1020.
4-Chloro-2-methylphenoxyacetic       C         P         III         NR    Open         Open         NSR            .236(a), (b), (c), (g)  NA
 acid, dimethylamine salt
 solution.
o-Chloronitrobenzene                 B        S/P         II        B/3    PV           Closed       A, B, C, D     .316, .336, .408,       NA
                                                                                                                     .440, .525, .526,
                                                                                                                     .908(a), (b), .933,
                                                                                                                     .1020.
1-(4-Chlorophenyl)-4,4-dimethyl      B         P         III         NR    Open         Open         A, B, D        .409, .440, .488,       NA
 pentan-3-one.                                                                                                       .908(a), (b).
2- or 3-Chloropropionic acid...      C        S/P        III         NR    Open         Open         A              .238(a), (b), .440,     NA
                                                                                                                     .554, .908(a), (b).
Chlorosulfonic acid............      C        S/P         I         B/3    PV           Closed       NSR            .408, .525, .526,       I-B
                                                                                                                     .527, .554, .555,
                                                                                                                     .602, .933, .1000,
                                                                                                                     .1020, .1045.
o-Chlorotoluene................      A        S/P        III         4m    PV           Restr        A, B, C        .409, .526............  I-D
m-Chlorotoluene................      B        S/P        III         4m    PV           Restr        A, B, C        .409, .526............  I-D
p-Chlorotoluene................      B        S/P         II         4m    PV           Restr        A, B, C        .409, .440, .526,       I-D
                                                                                                                     .908(b).
Chlorotoluenes (mixed isomers).      A        S/P         II         4m    PV           Restr        A, B, C        .409, .526............  I-D
Coal tar.......................      A        S/P         II         4m    PV           Restr        B, D           .409, .933, .1060.....  I-D
Coal tar naphtha solvent.......      B        S/P        III         4m    PV           Restr        A, D           .409, .526, .933,       I-D
                                                                                                                     .1060.
Coal tar pitch (molten)........      D         S         III         4m    PV           Restr        B, D           .252, .409, .933,       I-D
                                                                                                                     .1060.
Cobalt naphthenate in solvent        A        S/P         II         4m    PV           Restr        A, D           .409, .526............  I-D
 naphtha.
Coconut oil, fatty acid........      C         P         III         NR    Open         Open         A              .440, .903, .908(a),    NA
                                                                                                                     (b).
Cottonseed oil, fatty acid.....     [C]        P         III         NR    Open         Open         A              .440, .903, .908(a)...  NA
Creosote (coal tar)............      A        S/P         II         NR    Open         Open         A, B, D        .409..................  I-D
Creosote (wood)................      A        S/P         II         NR    Open         Open         A, B, D        .409..................  NA
Cresols (all isomers)..........      A        S/P         II         NR    Open         Open         A, B           .409, .440, .908(b)...  I-D

[[Page 250]]


Cresols with less than 5%
 Phenol, see Cresols (all
 isomers)
Cresols with 5% or more Phenol,
 see Phenol
Cresylate spent caustic              A        S/P         II         NR    Open         Open         NSR            .236(a), (c), .409,     NA
 (mixtures of Cresols and                                                                                            .933.
 Caustic soda solutions).
Cresylic acid, dephenolized....      A        S/P         II         NR    Open         Open         A, B           .409..................  NA
Cresylic acid, sodium salt
 solution, see Cresylate spent
 caustic.
Crotonaldehyde.................      A        S/P         II        B/3    PV           Restr        A              .316, .409, .525,       I-C
                                                                                                                     .526, .527, .1020.
Cumene (isopropylbenzene), see
 Propylbenzene (all isomers).
1,5,9-Cyclododecatriene........      A        S/P         I          4m    PV           Restr        A              .236(b), (c), .408,     I-D
                                                                                                                     .526, .912(a)(1),
                                                                                                                     .1002(a), (b), .1004.
Cycloheptane...................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Cyclohexane....................      C         P         III         4m    PV           Restr        A              .409, .440, .908(b)...  I-D
Cyclohexanone..................      D         S         III         4m    PV           Restr        A              .236(a), (b), .409,     I-D
                                                                                                                     .526.
Cyclohexanone, Cyclohexanol          D         S         III         4m    PV           Restr        A              .236(a), (b), .526....  I-D
 mixture.
Cyclohexyl acetate.............      B         P         III         4m    PV           Restr        A              .409..................  I-D
Cyclohexylamine................      C        S/P        III         4m    PV           Restr        A, C, D        .236(a), (b), (c),      I-D
                                                                                                                     (g), .409, .526.
1,3-Cyclopentadiene dimer            B         P          II         4m    PV           Restr        A              .409, .440, .488,       I-C
 (molten).                                                                                                           .908(a), (b).
Cyclopentane...................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Cyclopentene...................      B         P         III         4m    PV           Restr        A              .409..................  I-D
p-Cymene.......................      C         P         III         4m    PV           Restr        A              .409..................  I-D
iso-Decaldehyde................      @C        P         III         NR    Open         Open         A              None..................  I-C
n-Decaldehyde..................      @B        P         III         NR    Open         Open         A              None..................  I-C
Decanoic acid..................      C         P         III         NR    Open         Open         A              .440, .903, .908(a),    NA
                                                                                                                     (b).
Decene.........................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Decyl acetate..................      B         P         III         NR    Open         Open         A              .409..................  NA
(iso-, n-) Decyl acrylate......      A        S/P         II         NR    Open         Open         A, C, D        .236(a), (b), (c),      I-D
                                                                                                                     .409, .912(a)(1),
                                                                                                                     .1002(a), (b), .1004.
Decyl alcohol (all isomers)....      B         P         III         NR    Open         Open         A              .409, .440, .908(b)...  I-D
Decyloxytetrahydro-thiophene         A        S/P         II        B/3    PV           Restr        A              .409, .526............  NA
 dioxide.
Dibromomethane.................      C        S/P         II         4m    PV           Restr        NSR            .236(a), (b), (d),      NA
                                                                                                                     .408, .525(a), (c),
                                                                                                                     (d), (e), .526, .933,
                                                                                                                     .1020.
Dibutylamine...................      C        S/P        III         4m    PV           Restr        A, B, C, D     .236(b), (c), .409,     I-C
                                                                                                                     .526.
Dibutyl hydrogen phosphonate...      B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
ortho-Dibutyl phthalate........      A         P          II         NR    Open         Open         A              .409..................  I-D
Dichlorobenzene (all isomers)        B        S/P         II         4m    PV           Restr        A, B, D        .236(a), (b), .409,     I-D
 \1\.                                                                                                                .440, .488 \1\, .526,
                                                                                                                     .908(a), (b) \1\.
3,4-Dichloro-1-butene..........      B        S/P        III        B/3    PV           Closed       A, B, C        .316, .409, .525(a),    I-D
                                                                                                                     (c), (d), (e), .526,
                                                                                                                     .527, .933, .1020.
1,1-Dichloroethane.............      D         S         III         4m    PV           Restr        A, B           .409, .526, .527......  I-D
2,2'-Dichloroethyl ether.......      B        S/P         II         4m    PV           Restr        A              .236(a), (b), .409,     I-C
                                                                                                                     .526.
1,6-Dichlorohexane.............      B        S/P         II         4m    PV           Restr        A, B           .409, .526............  NA

[[Page 251]]


2,2'-Dichloroisopropyl ether...      C        S/P         II        B/3    PV           Restr        A, B, C, D     .236(a), (b), .316,     I-D
                                                                                                                     .408(a), .440, .525,
                                                                                                                     .526, .1020.
Dichloromethane................      D         S         III         4m    PV           Restr        NSR            .526..................  I-D
2,4-Dichlorophenol \4\.........      A        S/P         II         4m    PV           Restr        A, B, C, D     .236(a), (b), (c),      I-D
                                                                                                                     (g), .409, .440,
                                                                                                                     .500, .501, .526,
                                                                                                                     .908(b), .933.
2,4-Dichlorophenoxyacetic acid,      A        S/P        III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
 diethanolamine salt solution.                                                                                       (g), .409.
2,4-Dichlorophenoxyacetic acid,      A        S/P        III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
 dimethylamine salt solution.                                                                                        (g), .409.
2,4-Dichlorophenoxyacetic acid,      A        S/P        III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
 triisopropanolamine salt                                                                                            (g), .409.
 solution.
1,1-Dichloropropane............      C        S/P         II        B/3    PV           Restr        A, B           .409, .525, .526,       I-D
                                                                                                                     .1020.
1,2-Dichloropropane............      C        S/P         II        B/3    PV           Restr        A, B           .409, .525, .526,       I-D
                                                                                                                     .1020.
1,3-Dichloropropane............      D         S          II        B/3    PV           Restr        A, B           .409, .525, .526,       I-D
                                                                                                                     .1020.
1,3-Dichloropropene............      B        S/P         II        B/3    PV           Closed       A, B           .316, .336, .408,       I-D
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Dichloropropene,                     B        S/P         II        B/3    PV           Closed       A, B, C, D     .316, .336, .408,       I-D
 Dichloropropane mixtures.                                                                                           .526, .527.
2,2-Dichloropropionic acid.....      D         S         III         4m    PV           Restr        A              .238(e), .266, .500,    NA
                                                                                                                     .501, .554, .933.
Diethanolamine.................      D         S         III         NR    Open         Open         A              .236(b), (c)..........  NA
Diethylamine...................      C        S/P        III        B/3    PV           Restr        A              .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .525,
                                                                                                                     .526, .527, .1020.
Diethylaminoethanol, see
 Diethylethanolamine
2,6-Diethylaniline.............      C        S/P        III         NR    Open         Open         B, C, D        .236(b), .409, .440,    NA
                                                                                                                     .908(b).
Diethylbenzene.................      A         P         III         4m    PV           Restr        A              .409..................  I-D
Diethylenetriamine.............      D         S         III         NR    Open         Open         A              .236(b), (c)..........  NA
Diethylethanolamine............      C        S/P        III         4m    PV           Restr        A, C           .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .526.
Diethyl ether, see Ethyl ether
Di-(2-ethylhexyl) phosphoric         C        S/P        III         NR    Open         Open         A, B, C, D     .236(b), (c)..........  I-D
 acid.
Diethyl phthalate..............      C         P         III         NR    Open         Open         A              None..................  I-D
Diethyl sulfate................      B        S/P         II         4m    PV           Closed       A, D           .236(a), (c), (d),      I-D
                                                                                                                     .409, .526, .933.
Diglycidyl ether of Bisphenol A      B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
Diglycidyl ether of Bisphenol F      B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
Di-n-hexyl adipate.............      B         P         III         NR    Open         Open         A              .409..................  NA
Diisobutylamine................      C        S/P         II         4m    PV           Restr        A, B, C, D     .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .525(a),
                                                                                                                     (c), (d), (e), .526,
                                                                                                                     .1020.
Diisobutylcarbinol.............      @C        P         III         NR    Open         Open         A              None..................  I-D
Diisobutylene..................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Diisobutyl phthalate...........      B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  I-D
Diisopropanolamine.............      C        S/P        III         NR    Open         Open         A              .236(b), (c), .440,     I-D
                                                                                                                     .908(a), (b).
Diisopropylamine...............      C        S/P         II        B/3    PV           Closed       A              .236(b), (c), .408,     I-C
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Diisopropylbenzene (all              A         P          II         NR    Open         Open         A              .409..................  I-D
 isomers).
N,N-Dimethylacetamide..........      D         S         III        B/3    PV           Restr        B              .236(b), .316, .525,    I-D
                                                                                                                     .526, .527, .1020.
N,N-Dimethylacetamide solution       D         S         III        B/3    PV           Restr        B              .236(b), .316, .526...  I-D
 (40% or less).
Dimethyl adipate...............      B         P         III         NR    Open         Open         A              .409, .440, .908(b)...  NA
Dimethylamine solution (45% or       C        S/P        III        B/3    PV           Restr        A, C, D        .236(a), (b), (c),      I-C
 less).                                                                                                              (g), .409, .525,
                                                                                                                     .526, .527, .1020.
Dimethylamine solution (over         C        S/P         II        B/3    PV           Closed       A, C, D        .236(a), (b), (c),      I-C
 45% but not over 55%).                                                                                              (g), .316, .408,
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.

[[Page 252]]


Dimethylamine solution (over         C        S/P         II        B/3    PV           Closed       A, C, D        .236(a), (b), (c),      I-C
 55% but not over 65%).                                                                                              (g), .316, .372,
                                                                                                                     .408, .525, .526,
                                                                                                                     .527, .1020.
2,6-Dimethylaniline............     [C]       S/P        III         NR    Open         Open         B, C, D        .236(b), .409, .440,    I-D
                                                                                                                     .908(b).
N,N-Dimethylcyclohexylamine....      C        S/P         II        B/3    PV           Restr        A, C           .236(a), (b), (c),      NA
                                                                                                                     (g), .316, .409,
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
N,N-Dimethyldodecylamine.......      A        S/P         I          NR    Open         Open         B              .236(b), .408.........  NA
Dimethylethanolamine...........      D         S         III         4m    PV           Restr        A, D           .236(b), (c), .409,     I-C
                                                                                                                     .526.
Dimethylformamide..............      D         S         III         4m    PV           Restr        A, D           .236(b), .409, .526...  I-D
Dimethyl glutarate.............      C         P         III         NR    Open         Open         A              None..................  NA
Dimethyl hydrogen phosphite....      B        S/P        III         4m    PV           Restr        A, D           .526..................  NA
Dimethyl naphthalene sulfonic       [A]        P         III         NR    Open         Open         NSR            .409..................  NA
 acid, sodium salt solution.
Dimethyloctanoic acid..........      C         P         III         NR    Open         Open         A              .440, .903, .908(b)...  I-D
Dimethyl phthalate.............      C         P         III         NR    Open         Open         A              None..................  I-D
Dimethyl succinate.............      C         P         III         NR    Open         Open         A              .440, .908(b).........  NA
Dinitrotoluene (molten)........      A        S/P         II        B/3    PV           Closed       A              .316, .408, .525,       I-C
                                                                                                                     .526, .527, .1003,
                                                                                                                     .1020.
1,4-Dioxane....................      D         S          II        B/3    PV           Closed       A              .408, .525, .526,       I-C
                                                                                                                     .1020.
Dipentene......................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Diphenyl.......................      A         P          I          NR    Open         Open         B              .408..................  I-D
Diphenylamine (molten).........      B         P         III         NR    Open         Open         B, D           .236(b), .409, .440,    NA
                                                                                                                     .488, .908(b).
Diphenylamines, alkylated......      A         P          II         NR    Open         Open         A              .409..................  NA
Diphenylamine, reaction product      A        S/P         I          NR    Open         Open         A              .408..................  NA
 with 2,2,4-Trimethylpentene.
Diphenyl, Diphenyl ether             A         P          I          NR    Open         Open         B              .408..................  I-D
 mixtures.
Diphenyl ether.................      A         P         III         NR    Open         Open         A              .409..................  I-D
Diphenyl ether, Biphenyl phenyl      A         P         III         NR    Open         Open         A, B           .409..................  NA
 ether mixture.
Diphenylmethane diisocyanate         B        S/P         II        B/3    PV           Closed       A, B, C \6\,   .236(a), (b), .316,     NA
 \6\.                                                                                                 D              .409, .440, .500,
                                                                                                                     .501, .525, .526,
                                                                                                                     .602, .908(a), .1000,
                                                                                                                     .1020.
Diphenylol propane-                  B         P         III         NR    Open         Open         A, B           .409, .440, .908(a)...  NA
 epichlorohydrin resins.
Di-n-propylamine...............      C        S/P        III         4m    PV           Restr        A              .236(b), (c), .409,     I-C
                                                                                                                     .525, .526, .1020.
Dithiocarbamate ester (C7-C35).      A         P          II         NR    Open         Open         A, D           .409..................  NA
Dodecanol......................      B         P         III         NR    Open         Open         A              .409, .440, .488,       I-D
                                                                                                                     .908(a), (b).
Dodecene (all isomers).........      B         P         III         NR    Open         Open         A              .409..................  I-D
Dodecyl alcohol, see Dodecanol.
Dodecylamine, Tetradecylamine        A        S/P         II         4m    PV           Restr        A, D           .236(b), (c), .409,     NA
 mixture.                                                                                                            .526.
Dodecyldimethylamine,                A        S/P         II         NR    Open         Open         B, C, D        .236(b), .409.........  NA
 Tetradecyldimethylamine
 mixture.
Dodecyl diphenyl ether               A        S/P         II         NR    Open         Open         NSR            .409..................  NA
 disulfonate solution.
Dodecyl hydroxypropyl sulfide..      A         P          I          NR    Open         Open         A              .408..................  NA
Dodecyl methacrylate...........     III        S         III         NR    Open         Open         A, C           .236(b), (c),           I-D
                                                                                                                     .912(a)(1), .1004.
Dodecyl-Octadecyl methacrylate       D         S         III         NR    Open         Restr        A, D           .236(b), .912(a)(1),    NA
 mixture.                                                                                                            .1002(a), (b), .1004.

[[Page 253]]


Dodecyl-Pentadecyl methacrylate     III        S         III         NR    Open         Open         A, C, D        .912(a)(1), .1002(a),   NA
 mixture.                                                                                                            (b), .1004.
Dodecyl phenol.................      A         P          I          NR    Open         Open         A              .408..................  I-D
Drilling brine (containing Zinc      B         P         III         NR    Open         Open         NSR            .409..................  NA
 salts).
Epichlorohydrin................      A        S/P         II        B/3    PV           Closed       A              .316, .408, .525,       I-C
                                                                                                                     .526, .527, .1020.
Ethanolamine...................      D         S         III         NR    Open         Open         A              .236(b), (c), .526....  I-D
2-Ethoxyethyl acetate..........      C         P         III         4m    PV           Restr        A              .409..................  I-C
Ethyl acrylate.................      A        S/P         II         4m    PV           Restr        A              .409, .526, .527,       I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Ethylamine.....................      C        S/P         II        B/3    PV           Closed       C, D           .236(b), (c), .252,     I-D
                                                                                                                     .372, .409, .525,
                                                                                                                     .526, .527, .1020.
Ethylamine solution (72% or          C        S/P         II        B/3    PV           Closed       A, C           .236(a), (b), (c),      I-D
 less).                                                                                                              (g), .372, .408,
                                                                                                                     .525(a), (c), (d),
                                                                                                                     (e), .526, .527,
                                                                                                                     .1020.
Ethyl amyl ketone..............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Ethylbenzene...................      B         P         III         4m    PV           Restr        A              .409..................  I-D
N-Ethylbutylamine..............      C        S/P        III         4m    PV           Restr        A              .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .525(a),
                                                                                                                     (c), (d), (e), .526,
                                                                                                                     .1020.
Ethyl tert-butyl ether.........      C         P         III         4m    PV           Restr        A              .409..................  I-C
Ethyl butyrate.................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Ethylcyclohexane...............      C         P         III         4m    PV           Restr        A              .409..................  I-D
N-Ethylcyclohexylamine.........      D         S         III         4m    PV           Restr        A, C           .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .526.
S-Ethyl dipropylthiocarbamate..      C         P         III         NR    Open         Open         A              None..................  NA
Ethylene chlorohydrin..........      C        S/P         II        B/3    PV           Closed       A, D           .316, .408, .525,       I-D
                                                                                                                     .526, .527, .933,
                                                                                                                     .1020.
Ethylene cyanohydrin...........      D         S         III         NR    Open         Open         A              None..................  NA
Ethylenediamine................      C        S/P         II         4m    PV           Restr        A              .236(b), (c), .409,     I-D
                                                                                                                     .440, .526, .908(b).
Ethylene dibromide.............      B        S/P         II        B/3    PV           Closed       NSR            .408, .440, .525,       NA
                                                                                                                     .526, .527, .908(b),
                                                                                                                     .1020.
Ethylene dichloride............      B        S/P         II         4m    PV           Restr        A, B           .236(b), .408, .526...  I-D
Ethylene glycol butyl ether          C         P         III         NR    Open         Open         A              None..................  I-C
 acetate.
Ethylene glycol diacetate......      C         P         III         NR    Open         Open         A              None..................  I-D
Ethylene glycol ethyl ether
 acetate, see 2-Ethoxyethyl
 acetate
Ethylene glycol methyl ether         C         P         III         NR    Open         Open         A              None..................  I-C
 acetate.
Ethylene glycol monoalkyl ether      D         S         III         4m    PV           Restr        A              .409..................  I-C
 Including:
 2-Ethoxyethanol
 Ethylene glycol butyl ether
 Ethylene glycol tert-butyl
 ether
 Ethylene glycol ethyl ether
 Ethylene glycol hexyl ether
 Ethylene glycol methyl ether
 Ethylene glycol n-propyl ether
 Ethylene glycol isopropyl
 ether
Ethylene oxide (30% or less),        C        S/P         II        B/3    PV           Closed       A, C           .252, .372, .408,       I-B
 Propylene oxide mixture.                                                                                            .440, .500, .525,
                                                                                                                     .526, .530, .1010,
                                                                                                                     .1011, .1020.
Ethyl ether....................     III        S          II         4m    PV           Closed       A              .236(g), .252, .372,    I-C
                                                                                                                     .408, .440, .500,
                                                                                                                     .515, .526, .527.
Ethyl-3-ethoxypropionate.......      C         P         III         4m    PV           Restr        A              .409..................  NA
2-Ethylhexanol.................      @C        P         III         NR    Open         Open         A              None..................  I-D
2-Ethylhexyl acrylate..........      B        S/P        III         NR    Open         Open         A              .409, .912(a)(1),       I-D
                                                                                                                     .1002(a), (b), .1004.
2-Ethylhexylamine..............      B        S/P         II        B/3    PV           Restr        A              .236(b), (c), .409,     I-D
                                                                                                                     .525, .526, .1020.
Ethyl hexyl phthalate..........      C         P         III         NR    Open         Open         A              None..................  NA
Ethylidene norbornene..........      B        S/P        III        B/3    PV           Restr        A, B, C, D     .236(b), .409, .526...  NA
Ethyl methacrylate.............      D         S         III         4m    PV           Restr        A, B, D        .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.

[[Page 254]]


Ethylphenol....................      A        S/P        III         NR    Open         Open         B              .409..................  I-D
2-Ethyl-3-propylacrolein.......      A        S/P        III         4m    PV           Restr        A              .409, .526............  I-C
Ethyl toluene..................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Ferric chloride solutions......      C        S/P        III         NR    Open         Open         NSR            .409, .440, .554,       I-B
                                                                                                                     .555, .908(b), .1045.
Ferric nitrate, Nitric acid          C        S/P         II         4m    PV           Restr        NSR            .408, .526, .527,       I-B
 solution.                                                                                                           .554, .555, .559,
                                                                                                                     .933, .1045.
Fluorosilicic acid (30% or           C        S/P        III        B/3    PV           Restr        NSR            .252, .526, .527,       I-B
 less).                                                                                                              .554, .555, .933,
                                                                                                                     .1045.
Formaldehyde (50% or more),                  S/P        III         4m    PV           Closed       A              .409, .526, .527......  I-B
 Methanol mixtures.
Formaldehyde solution (37% to        C        S/P        III         4m    PV           Restr        A              .409, .440, .526,       I-B
 50%).                                                                                                               .527, .908(b).
Formic acid....................      D         S         III         4m    PV           Restr        A              .238(b), (c), .409,     I-D
                                                                                                                     .526, .527, .554,
                                                                                                                     .933.
Fumaric adduct of rosin, water       B         P         III         NR    Open         Open         NSR            .409, .440, .908(a)...  NA
 dispersion.
Furfural.......................      C        S/P        III         4m    PV           Restr        A              .409, .526............  I-C
Furfuryl alcohol...............      C         P         III         NR    Open         Open         A              None..................  I-C
Glutaraldehyde solution (50% or      D         S         III         NR    Open         Open         NSR            None..................  NA
 less).
Glycidyl ester of C10 Trialkyl
 acetic acid, see Glycidyl
 ester of Tridecyl acetic acid.
Glycidyl ester of Tridecyl           B         P         III         NR    Open         Open         A              .409..................  NA
 acetic acid.
Glyoxylic acid solution (50% or      D         S         III         NR    Open         Open         A, C, D        .238(e), .554(a), (b),  NA
 less).                                                                                                              (c), .933, .1002.
Heptane (all isomers), see           C         P         III         4m    PV           Restr        A              .409..................  I-D
 Alkanes(C6-C9) (all isomers).
Heptanol (all isomers).........      C         P         III         4m    PV           Restr        A              .409..................  I-D
Heptene (all isomers)..........      C         P         III         4m    PV           Restr        A              .409..................  I-D
Heptyl acetate.................      B         P         III         NR    Open         Open         A              .409..................  NA
Hexamethylenediamine (molten)..      C        S/P         II        B/3    PV           Closed       C              .236(a), (b), (c),      NA
                                                                                                                     (g), .316, .336,
                                                                                                                     .409, .440, .525,
                                                                                                                     .526, .527, .908(a),
                                                                                                                     (b), .933, .1020.
Hexamethylenediamine solution..      C        S/P        III         4m    PV           Restr        A              .236(b), (c), .409,     I-D
                                                                                                                     .440, .526, .908(b).
Hexamethylene diisocyanate \6\.      B        S/P         II        B/3    PV           Closed       A, C \6\, D    .238(d), .252, .316,    NA
                                                                                                                     .336, .408, .500,
                                                                                                                     .501, .525, .526,
                                                                                                                     .527, .602, .1000,
                                                                                                                     .1020.
Hexamethyleneimine.............      C        S/P         II         4m    PV           Restr        A, C           .236(a), (b), (c),      I-C
                                                                                                                     (g), .409, .526.
Hexane (all isomers), see            C         P         III         4m    PV           Restr        A              .409..................  I-D
 Alkanes(C6-C9).
Hexene (all isomers)...........      C         P         III         4m    PV           Restr        A              .409..................  I-D
Hexyl acetate..................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Hydrochloric acid..............      D         S         III         4m    PV           Restr        NSR            .252, .526, .527,       I-B
                                                                                                                     .554, .557, .933,
                                                                                                                     .1045, .1052.
Hydrogen peroxide solutions          C        S/P        III        B/3    PV           Closed       NSR            .238(a), (c), .355,     NA
 (over 8% but not over 60%).                                                                                         .409, .440(a)(1)&(2),
                                                                                                                     .500, .933,
                                                                                                                     .1004(a)(2), .1500.
Hydrogen peroxide solutions          C        S/P         II        B/3    PV           Closed       NSR            .238(a), (c), .355,     NA
 (over 60% but not over 70%).                                                                                        .409, .440(a)(1)&(2),
                                                                                                                     .500, .933,
                                                                                                                     .1004(a)(2), .1500.
2-Hydroxyethyl acrylate........      B        S/P         II        B/3    PV           Closed       A              .408, .525, .526,       NA
                                                                                                                     .912(a)(1), .933,
                                                                                                                     .1002(a), (b), .1004,
                                                                                                                     .1020.
N,N-bis(2-Hydroxyethyl)              B         P          II         4m    PV           Restr        A              .409, .440, .488,       NA
 oleamide.                                                                                                           .908(a), (b).

[[Page 255]]


2-Hydroxy-4-                         C         P         III         NR    Open         Open         A              .440, .903, .908(a)...  NA
 (methylthio)butanoic acid.
alpha-hydro-omega-
 Hydroxytetradeca(oxytetra
 methylene), see
 Poly(tetramethylene ether)
 glycols (mw 950-1050).
Icosa (oxypropane-2,3-diyl)s...      B         P         III         NR    Open         Open         A              .409, .440, .908(a)...  NA
Isophorone diamine.............      D         S         III         4m    PV           Restr        A              .236(b), (c), .526....  NA
Isophorone diisocyanate \6\....      B        S/P         II        B/3    PV           Closed       A, B, C \6\,   .236(a), (b), .316,     NA
                                                                                                      D              .409, .500, .501,
                                                                                                                     .525, .526, .602,
                                                                                                                     .1000, .1020.
Isoprene.......................      C        S/P        III         4m    PV           Restr        B              .372, .409, .440,       I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Isopropylbenzene, see
 Propylbenzene (all isomers)
Lactonitrile solution (80% or        B        S/P         II        B/3    PV           Closed       A, C, D        .238(d), .252, .316,    I-D
 less).                                                                                                              .336, .408, .440,
                                                                                                                     .525, .526, .527,
                                                                                                                     .908(a), .912(a)(2),
                                                                                                                     .1002, .1004, .1020,
                                                                                                                     .1035.
Lauric acid....................      B         P         III         NR    Open         Open         A              .409, .440, .488,       NA
                                                                                                                     .908(a), (b).
Lauryl polyglucose (50% or
 less), see Alkyl(C12-C14)
 polyglucoside solution (55% or
 less).
Long chain alkaryl polyether         C         P         III         NR    Open         Open         A, B           (.440, .903, .908(a))   NA
 (C11-C20).                                                                                                          \1\.
Long chain polyetheramine in         C         P         III         4m    PV           Restr        A              .409, .440, .903,       I-D
 alkyl(C2-C4)benzenes.                                                                                               .908(a).
Magnesium long chain alkyl           C         P         III         NR    Open         Open         A, B           (.440, .903, .908(a))   NA
 salicylate (C11+).                                                                                                  \1\.
Maleic anhydride \7\...........      D         S         III         4m    PV           Restr        \7\A, C        None..................  I-D
Mercaptobenzothiazol, sodium
 salt solution, see Sodium-2-
 mercaptobenzothiazol solution
Mesityl oxide..................      D         S         III         4m    PV           Restr        A              .236(b), (c), .409,     I-D
                                                                                                                     .526.
Metam sodium solution..........      A        S/P         II         NR    Open         Open         NSR            .236(a), (b), (c),      NA
                                                                                                                     (g), .409.
Methacrylic acid...............      D         S         III         4m    PV           Restr        A              .238(a), .526,          NA
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     .1004.
Methacrylic resin in Ethylene        B        S/P         II         4m    PV           Restr        A, B           .236(b), .408, .440,    I-D
 dichloride.                                                                                                         .526, .908(a).
Methacrylonitrile..............      D         S          II        B/3    PV           Closed       A              .236(b), .316, .408,    NA
                                                                                                                     .525, .526, .527,
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     .1004, .1020.
N-(2-Methoxy-1-methyl ethyl)-2-
 ethyl-6-methyl
 chloroacetanilide, see
 Metolachlor
Methyl acrylate................      B        S/P         II         4m    PV           Restr        A, B           .409, .526, .527,       I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Methylamine solution (42% or         C        S/P         II        B/3    PV           Closed       A, C, D        .236(a), (b), (c),      I-D
 less).                                                                                                              (g), .316, .408,
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Methylamyl acetate.............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Methylamyl alcohol.............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Methyl butyrate................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Methylcyclohexane..............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Methylcyclopentadiene dimer....      B         P         III         4m    PV           Restr        B              .409..................  I-B
Methyl diethanolamine..........      D         S         III         NR    Open         Open         A              .236(b), (c)..........  I-C
Methylene chloride, see
 Dichloromethane
2-Methyl-6-ethylaniline........      C        S/P        III         NR    Open         Open         A, B, C, D     None..................  NA
2-Methyl-5-ethylpyridine.......      B        S/P        III         NR    Open         Open         A, D           .236(b), .409.........  I-D
Methyl formate.................      D         S          II        B/3    PV           Restr        A              .372, .408, .440,       I-D
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Methyl heptyl ketone...........      B         P         III         4m    PV           Restr        A              .409..................  I-D

[[Page 256]]


2-Methyl-2-hydroxy-3-butyne....     III        S         III         4m    PV           Restr        A, B, C, D     .236(b), (d), (f),      I-D
                                                                                                                     (g), .409, .526.
Methyl methacrylate............      D         S          II         4m    PV           Restr        A, B           .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Methyl naphthalene (molten)....      A        S/P         II         4m    PV           Restr        A, D           .409..................  I-D
2-Methyl-1-pentene (Hexene (all
 isomers)), see Alkanes(C6-C9).
4-Methyl-1-pentene (Hexene (all
 isomers)), see Alkanes(C6-C9).
Methyl tert-pentyl ether, see
 tert-Amyl methyl ether.
2-Methylpyridine...............      D         S          II        B/3    PV           Closed       A, C           .236(b), .408,          I-D
                                                                                                                     .525(a), (c), (d),
                                                                                                                     (e), .1020.
3-Methylpyridine...............      C        S/P         II        B/3    PV           Closed       A, C           .236(b), .408,          I-D
                                                                                                                     .525(a), (c), (d),
                                                                                                                     (e), .1020.
4-Methylpyridine...............      D         S          II        B/3    PV           Closed       A, C, D        .236(b), .408, .440,    I-D
                                                                                                                     .525(a), (c), (d),
                                                                                                                     (e), .526, .908(b),
                                                                                                                     .1020.
Methyl salicylate..............      B         P         III         NR    Open         Open         A              .409..................  I-D
alpha-Methylstyrene............      A        S/P        III         4m    PV           Restr        A, D           .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
3-(Methylthio) propionaldehyde.      B        S/P        III        B/3    PV           Closed       B, C           .238(e), .316, .408,    NA
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Metolachlor....................      B         P         III         NR    Open         Open         A              .409..................  NA
Morpholine.....................      D         S         III         4m    PV           Restr        A              .236(b), (c), .409....  I-C
Motor fuel anti-knock compounds      A        S/P         I         B/3    PV           Closed       A, B, C        .252, .316, .336,       I-D
 (containing lead alkyls).                                                                                           .408, .525, .526,
                                                                                                                     .527, .933, .1020,
                                                                                                                     .1025.
Naphthalene (molten)...........      A        S/P         II         4m    PV           Restr        A, D           .409, .440, .908(b)...  I-D
Naphthalene sulfonic acid,          [A]        P         III         NR    Open         Open         NSR            .409..................  NA
 sodium salt solution (40% or
 less).
Naphthenic acid................      A         P          II         NR    Open         Open         A              .409..................  NA
Naphthenic acid, sodium salt        [A]        P          II         NR    Open         Open         NSR            .409..................  NA
 solution.
Neodecanoic acid...............      C         P         III         NR    Open         Open         A              None..................  NA
Nitrating acid (mixture of           C        S/P         II        B/3    PV           Closed       NSR            .316, .408, .526,       I-B
 sulfuric and nitric acids).                                                                                         .527, .554, .555,
                                                                                                                     .556, .559, .602,
                                                                                                                     .933, .1000, .1045.
Nitric acid (70% or less)......      C        S/P         II         4m    PV           Restr        NSR            .408, .526, .527,       I-B
                                                                                                                     .554, .555, .559,
                                                                                                                     .933, .1045.
Nitrobenzene...................      B        S/P         II        B/3    PV           Closed       A, D           .316, .336, .408,       I-D
                                                                                                                     .440, .525, .526,
                                                                                                                     .908(b), .933, .1020.
Nitroethane \7\................      D         S         III         4m    PV           Restr        \7\A, C        .236(b), .409, .526,    I-C
                                                                                                                     .1002(a), (b), .1003.
Nitroethane, 1-Nitropropane          D         S         III         4m    PV           Restr        \7\A           .236(b), .409, .526,    I-C
 (each 15% or more) mixture \7\.                                                                                     .1002.
o-Nitrophenol (molten).........      B        S/P         II        B/3    PV           Closed       A, C, D        .409, .440, .525,       NA
                                                                                                                     .526, .908(a), (b),
                                                                                                                     .1020.
1- or 2-Nitropropane \7\.......      D         S         III         4m    PV           Restr        \7\A, C        .409, .526............  I-C
Nitropropane (60%), Nitroethane      D         S         III         4m    PV           Restr        \7\A, C        .236(b), .409, .526...  I-C
 (40%) mixture \7\.
Nitropropane (20%), Nitroethane      D         S         III         4m    PV           Restr        \7\A, C        .236(b), .409, .526,    I-C
 (80%) mixture \7\.                                                                                                  .1002(a), (b), .1003.
(o-, p-) Nitrotoluene..........      B        S/P         II        B/3    PV           Closed       A, B           .316, .408, .440,       I-D
                                                                                                                     .525, .526, .908(b),
                                                                                                                     .1020.

[[Page 257]]


Nonane (all isomers), see            C         P         III         4m    PV           Restr        B, C           .409..................  I-D
 Alkanes(C6-C9).
Nonene (all isomers)...........      B         P         III         4m    PV           Restr        A              .409..................  I-D
Nonyl acetate..................      C         P         III         NR    Open         Open         A              .409..................  I-D
Nonyl alcohol (all isomers)....      C         P         III         NR    Open         Open         A              None..................  I-D
Nonyl phenol...................      A         P          II         NR    Open         Open         A              .409..................  I-D
Nonyl phenol                         B         P         III         NR    Open         Open         A              .409, .440, .488 \1\,   I-D
 poly(4+)ethoxylates.                                                                                                .908(a), (b).
Noxious liquid, N.F., (1)            A         P          I          NR    Open         Open         A              .408..................  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 1, Cat A.
Noxious liquid, F., (2) n.o.s.       A         P          I          4m    PV           Restr        A              .408..................  NA
 (``trade name'' contains
 ``principal components'') ST
 1, Cat A.
Noxious liquid, N.F., (3)            A         P          II         NR    Open         Open         A              .409..................  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 2, Cat A.
Noxious liquid, F., (4) n.o.s.       A         P          II         4m    PV           Restr        A              .409..................  NA
 (``trade name'' contains
 ``principal components'') ST
 2, Cat A.
Noxious liquid, N.F., (5)            B         P          II         NR    Open         Open         A              .409; (.440, .908) \1\  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 2, Cat B.
Noxious liquid, N.F., (6)            B         P          II         NR    Open         Open         A              .409, .440, .488,       NA
 n.o.s. (``trade name''                                                                                              .908(b); (.908(a))
 contains ``principal                                                                                                \1\.
 components'') ST 2, Cat B, mp.
 equal to or greater than 15
 deg. C.
Noxious liquid, F., (7) n.o.s.       B         P          II         4m    PV           Restr        A              .409; (.440, .908) \1\  NA
 (``trade name'' contains
 ``principal components'') ST
 2, Cat B.
Noxious liquid, F., (8) n.o.s.       B         P          II         4m    PV           Restr        A              .409, .440, .488,       NA
 (``trade name'' contains                                                                                            .908(b); (.908(a))
 ``principal components'') ST                                                                                        \1\.
 2, Cat B, mp. equal to or
 greater than 15 deg. C.
Noxious liquid, N.F., (9)            A         P         III         NR    Open         Open         A              .409..................  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 3, Cat A.
Noxious liquid, F., (10) n.o.s.      A         P         III         4m    PV           Restr        A              .409..................  NA
 (``trade name'' contains
 ``principal components'') ST
 3, Cat A.
Noxious liquid, N.F., (11)           B         P         III         NR    Open         Open         A              (.409, .440, .908) \1\  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 3, Cat B.
Noxious liquid, N.F., (12)           B         P         III         NR    Open         Open         A              .409, .440, .488,       NA
 n.o.s. (``trade name''                                                                                              .908(b); (.908(a))
 contains ``principal                                                                                                \1\.
 components'') ST 3, Cat B, mp.
 equal to or greater than 15
 deg. C.
Noxious liquid, F., (13) n.o.s.      B         P         III         4m    PV           Restr        A              .409; (.440, .908) \1\  NA
 (``trade name'' contains
 ``principal components'') ST
 3, Cat B.

[[Page 258]]


Noxious liquid, F., (14) n.o.s.      B         P         III         4m    PV           Restr        A              .409, .440, .488,       NA
 (``trade name'' contains                                                                                            .908(b); (.908(a))
 ``principal components'') ST                                                                                        \1\.
 3, Cat B, mp. equal to or
 greater than 15 deg. C.
Noxious liquid, N.F., (15)           C         P         III         NR    Open         Open         A              (.440, .903, .908) \1\  NA
 n.o.s. (``trade name''
 contains ``principal
 components'') ST 3, Cat C.
Noxious liquid, F., (16) n.o.s.      C         P         III         4m    PV           Restr        A              (.440, .903, .908) \1\  NA
 (``trade name'' contains
 ``principal components'') ST
 3, Cat C.
Octane (all isomers), see            C         P         III         4m    PV           Restr        A              .409..................  I-D
 Alkanes(C6-C9).
Octanol (all isomers)..........      C         P         III         NR    Open         Open         A              None..................  I-D
Octene (all isomers)...........      B         P         III         4m    PV           Restr        A              .409..................  I-D
Octyl acetate..................      C         P         III         NR    Open         Open         A              None..................  I-D
Octyl aldehydes................      B         P         III         4m    PV           Restr        A              .409, .440, .908(b)...  I-C
Octyl nitrates (all isomers),
 see Alkyl(C7-C9) nitrates.
Olefin mixtures (C5-C7)........      C         P         III         4m    PV           Restr        A              .409..................  I-D
Olefin mixtures (C5-C15).......      B         P         III         4m    PV           Restr        A              .409..................  I-D
alpha-Olefins (C6-C18) mixtures      B         P         III         4m    PV           Restr        A              .409, .440, .908(a),    I-D
                                                                                                                     (b).
Oleum..........................      C        S/P         II        B/3    PV           Closed       NSR            .316, .408, .440,       I-B
                                                                                                                     .526, .527, .554,
                                                                                                                     .555, .556, .602,
                                                                                                                     .908(a), .933, .1000,
                                                                                                                     .1045, .1052.
Oleylamine.....................      A        S/P         II         4m    PV           Restr        A              .409, .526............  NA
Palm kernel acid oil...........      C         P         III         NR    Open         Open         A, B           .440, .903, .908(a),    NA
                                                                                                                     (b).
Paraldehyde....................      C        S/P        III         4m    PV           Restr        A              .409, .440, .908(b)...  I-C
Paraldehyde-ammonia reaction         C        S/P         II        B/3    PV           Closed       A              .236 (a), (b), (c),     NA
 product.                                                                                                            (g), .525(a), (c),
                                                                                                                     (e), .408, .526,
                                                                                                                     .1020.
Pentachloroethane..............      B        S/P         II        B/3    PV           Restr        NSR            .316, .409, .525,       NA
                                                                                                                     .526, .1020.
1,3-Pentadiene.................      C        S/P        III         4m    PV           Restr        A, B           .409, .526,             I-D
                                                                                                                     .912(a)(1), .1002,
                                                                                                                     .1004.
Pentane (all isomers)..........      C         P         III         4m    PV           Restr        A              .372, .409............  I-D
n-Pentanoic acid (64%), 2-           D         S          II        B/3    Open         Closed       A, D           .238(a), .408,          I-D
 Methyl butyric acid (36%)                                                                                           .525(a), (c), (e),
 mixture.                                                                                                            .554, .933, .1020.
Pentene (all isomers)..........      C         P         III         4m    PV           Restr        A              .409..................  I-D
n-Pentyl propionate............      C         P         III         4m    PV           Restr        A              .409..................  I-D
Perchloroethylene..............      B        S/P        III        B/3    PV           Restr        NSR            .409, .526............  NA
Phenol (or solutions with 5% or      C        S/P         II        B/3    PV           Closed       A              .408, .440, .488,       I-D
 more Phenol).                                                                                                       .525, .526, .908(a),
                                                                                                                     (b), .933, .1020.
1-Phenyl-l-xylyl ethane........      C         P         III         NR    Open         Open         A, B           None..................  NA
Phosphate esters, alkyl(C12-         B         P         III         4m    PV           Restr        A              .409..................  NA
 C14)amine.
Phosphoric acid................      D         S         III         NR    Open         Open         NSR            .554, .555, .558,       I-B
                                                                                                                     .1045, .1052, .933.
Phthalic anhydride (molten)....      C        S/P        III         4m    PV           Restr        A, D           .440, .908(a), (b)....  I-D
Pinene, see the alpha- or beta-
 isomers.
alpha-Pinene...................      A         P         III         4m    PV           Restr        A              .409..................  I-D

[[Page 259]]


beta-Pinene....................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Pine oil.......................      C         P         III         NR    Open         Open         A              .440, .908(a).........  I-D
Polyalkyl(C18-C22) acrylate in       C         P         III         4m    PV           Restr        A              .409, .440, .903,       NA
 Xylene.                                                                                                             .908(a).
Polyalkylene oxide polyol......      C         P         III         NR    Open         Open         A              .440, .903, .908(a)...  NA
Poly(2+)cyclic aromatics.......      A         P          II         4m    PV           Restr        A, D           .409..................  I-D
Polyethylene polyamines........      C        S/P        III         NR    Open         Open         A              .236(b), (c), .400,     NA
                                                                                                                     .440, .908(b).
Polyferric sulfate solution....      C        S/P        III         NR    Open         Open         NSR            .238(d)...............  NA
Polyisobutenamine in aliphatic       C         P         III         NR    Open         Open         A              .903..................  NA
 (C10-C14) solvent.
Polymethylene polyphenyl             D         S          II        B/3    PV           Closed       A, C \6\, D    .236(a), (b), .409,     NA
 isocyanate \6\.                                                                                                     .500, .501, .525,
                                                                                                                     .526, .602, .1000,
                                                                                                                     .1020.
Polyolefinamine (C28-C250).....      C         P         III         NR    Open         Open         A              None..................  NA
Polyolefinamine in alkyl(C2-         C         P         III         4m    PV           Restr        A              .409, .440, .903,       I-D
 C4)benzenes.                                                                                                        .908(a).
Polyolefin phosphorosulfide,         C         P         III         NR    Open         Open         A, B           (.440, .903, .908(a))   NA
 barium derivative (C28-C250).                                                                                       \1\.
Poly(tetramethylene ether)           B         P         III         NR    Open         Open         A, D           .409, .440, .488,       NA
 glycols (mw 950-1050).                                                                                              .908(a), (b).
Potassium hydroxide solution,
 see Caustic potash solution
Potassium oleate...............      C         P         III         NR    Open         Open         A              .409..................  NA
Potassium thiosulfate (50% or        C         P         III         NR    Open         Open         NSR            None..................  NA
 less).
iso-Propanolamine..............      C        S/P        III         NR    Open         Open         A              .236(b), (c), .440,     I-D
                                                                                                                     .526, .903, .908(b).
n-Propanolamine................      C        S/P        III         NR    Open         Open         A, D           .236(b), (c), .440,     NA
                                                                                                                     .526, .908(b).
Propionaldehyde................      C        S/P        III         4m    PV           Restr        A              .316, .409, .526, .527  I-C
Propionic acid.................      D         S         III         4m    PV           Restr        A              .238(a), .409, .527,    I-D
                                                                                                                     .554, .933.
Propionic anhydride............      C        S/P        III         4m    PV           Restr        A              .238(a), .526.........  I-D
Propionitrile..................      C        S/P         II        B/3    PV           Closed       A, D           .252, .316, .336,       I-D
                                                                                                                     .408, .525, .526,
                                                                                                                     .527, .1020.
iso-Propylamine................      C        S/P         II        B/3    PV           Closed       C, D           .236(b), (c), .372,     I-D
                                                                                                                     .408, .440, .525,
                                                                                                                     .526, .527, .1020.
iso-Propylamine solution (70%        C        S/P         II        B/3    PV           Closed       C, D           .236(a), (b), (c),      I-D
 or less).                                                                                                           (g), .408, .440,
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
n-Propylamine..................      C        S/P         II        B/3    PV           Closed       A, C, D        .236(b), (c), .408,     I-D
                                                                                                                     .500, .525, .526,
                                                                                                                     .527, .1020.
n-Propylbenzene, see
 Propylbenzene (all isomers).
Propylbenzene (all isomers)....      A         P         III         4m    PV           Restr        A              .409..................  I-D
n-Propyl chloride..............      D         S         III         4m    PV           Restr        A, B           .409..................  I-D
iso-Propylcyclohexane..........      C         P         III         4m    PV           Restr        A              .409, .440, .903,       I-D
                                                                                                                     .908(a).
Propylene dimer................      C         P         III         4m    PV           Restr        A              .409..................  NA
Propylene oxide................      C        S/P         II        B/3    PV           Closed       A, C           .372, .408, .440,       I-B
                                                                                                                     .500, .526, .530,
                                                                                                                     .1010, .1011.
Propylene tetramer.............      B         P         III         4m    PV           Restr        A              .409..................  I-D
Propylene trimer...............      B         P         III         4m    PV           Restr        A              .409..................  I-D
iso-Propyl ether...............      D         S         III         4m    PV           Restr        A              .409, .500, .515,       I-D
                                                                                                                     .912(a)(1).
Pyridine.......................      D         S         III         4m    PV           Restr        A              .236(b), .409.........  I-D
Rosin, see Rosin oil...........
Rosin oil......................      B         P         III         NR    Open         Open         A              .409, .440, .488,       I-D
                                                                                                                     .908(a), (b).
Rosin soap (disproportionated)       B         P         III         NR    Open         Open         A              .409..................  NA
 solution.
Sodium alkyl (C14-C17)
 sulfonates 60-65% solution,
 see Alkane (C14-C17) sulfonic
 acid, sodium salt solution.
Sodium aluminate solution......      D         S         III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
                                                                                                                     (g), .933.
Sodium borohydride (15% or           C        S/P        III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
 less), Sodium hydroxide                                                                                             (g), .440, .908(a),
 solution.                                                                                                           .933.

[[Page 260]]


Sodium chlorate solution (50%       III        S         III         NR    Open         Open         NSR            .409, .933, .1065.....  NA
 or less).
Sodium dichromate solution (70%      C        S/P         II        B/3    Open         Closed       NSR            .236(b), (c), .408,     NA
 or less).                                                                                                           .525, .933, .1020.
Sodium dimethyl naphthalene
 sulfonate solution, see
 Dimethyl naphthalene sulfonic
 acid, sodium salt solution.
Sodium hydrogen sulfide (6% or       B         P         III         NR    Open         Open         NSR            .409..................  NA
 less), Sodium carbonate (3% or
 less) solution.
Sodium hydrogen sulfite              D         S         III         NR    Open         Open         NSR            None..................  NA
 solution (45% or less).
Sodium hydrosulfide solution         B        S/P        III         4m    PV           Restr        NSR            .409, .440, .526,       NA
 (45% or less).                                                                                                      .908(b), .933.
Sodium hydrosulfide, Ammonium        B        S/P         II        B/3    PV           Closed       A, C           .236(a), (b), (c),      NA
 sulfide solution.                                                                                                   (g), .316, .372,
                                                                                                                     .408, .525, .526,
                                                                                                                     .527, .933, .1002,
                                                                                                                     .1020.
Sodium hydroxide solution, see
 Caustic soda solution
Sodium hypochlorite solution         C        S/P        III         4m    PV           Restr        NSR            .236(a), (b), .933....  NA
 (15% or less).
Sodium long chain alkyl             [C]        P         III         NR    Open         Open         A              (.440, .903, .908(a))   NA
 salicylate (C13+).                                                                                                  \1\.
Sodium-2-mercaptobenzothiazol        B        S/P        III         NR    Open         Open         NSR            .236(a), (b), (c),      NA
 solution.                                                                                                           (g), .409, .440,
                                                                                                                     .908(b), .933.
Sodium N-methyldithiocarbamate
 solution, see Metam sodium
 solution.
Sodium naphthalene sulfonate
 solution (40% or less), see
 Naphthalene sulfonic acid,
 sodium salt solution (40% or
 less).
Sodium naphthenate solution,
 see Naphthenic acid, sodium
 salt solution.
Sodium nitrite solution........      B        S/P         II         NR    Open         Open         NSR            .408, .525(a), (c),     NA
                                                                                                                     (d), (e), .1020.
Sodium petroleum sulfonate.....      B        S/P         II         NR    Open         Open         A              .409, .440, .908(a)...  NA
Sodium silicate solution.......      C         P         III         NR    Open         Open         A              None..................  NA
Sodium sulfide solution (15% or      B        S/P        III        B/3    PV           Closed       NSR            .236(a), (b), .409,     NA
 less).                                                                                                              .440, .526, .908(b).
Sodium sulfite solution (25% or      C         P         III         NR    Open         Open         NSR            .409, .440, .908(b)...  NA
 less).
Sodium tartrates, Sodium             D         S         III         NR    Open         Open         A, B           .238(e)...............  NA
 succinates solution.
Sodium thiocyanate solution          B         P         III         NR    Open         Open         NSR            .238(a), .409.........  NA
 (56% or less).
Styrene monomer................      B        S/P        III         4m    PV           Restr        A, B           .236(b), .409,          I-D
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Sulfohydrocarbon, long chain         B         P         III         NR    Open         Open         A, B           .409; (.440, .908(a))   NA
 (C18+) alkylamine mixture.                                                                                          \1\.
Sulfur (molten)................     III        S         III         NR    Open         Open         NSR            .252, .440, .526, .545  I-C
Sulfuric acid..................      C        S/P        III         NR    Open         Open         NSR            .440, .554, .555,       I-B
                                                                                                                     .556, .602, .908(a),
                                                                                                                     (b), .933, .1000,
                                                                                                                     .1045, .1046, .1052.
Tall oil (crude and distilled).      B         P         III         NR    Open         Open         A              .409, .440, .488,       NA
                                                                                                                     .908(a), (b).

[[Page 261]]


Tall oil, fatty acid (resin          C         P         III         NR    Open         Open         A              .440, .908(a), (b)....  NA
 acids less than 20%).
Tall oil fatty acid, barium          B        S/P        III         NR    Open         Open         A              .409, .440, .908(a)...  NA
 salt.
Tall oil soap                        B         P         III         NR    Open         Open         A              .409, .440, .908(a),    NA
 (disproportionated) solution.                                                                                       (b).
1,1,2,2-Tetrachloroethane......      B        S/P        III        B/3    PV           Restr        NSR            .316, .409, .525,       NA
                                                                                                                     .526, .1020.
Tetraethylenepentamine \3\.....      D         S         III         NR    Open         Open         A              .236(b), (c), (g).....  I-C
Tetrahydrofuran................      D         S         III         4m    PV           Restr        A, D           .409, .526,             I-C
                                                                                                                     .912(a)(2), .1004.
Tetrahydronaphthalene..........      C         P         III         NR    Open         Open         A              None..................  I-D
Tetramethylbenzene (all              A         P         III         NR    Open         Open         A              None..................  I-D
 isomers).
Toluene........................      C         P         III         4m    PV           Restr        A              .409..................  I-D
Toluenediamine.................      C        S/P         II        B/3    PV           Closed       A, B, C, D     .236(a), (b), (c),      NA
                                                                                                                     (g), .316, .408,
                                                                                                                     .440, .525, .526,
                                                                                                                     .527, .908(a), (b),
                                                                                                                     .933, .1020.
Toluene diisocyanate \6\.......      C        S/P         II         4m    PV           Closed       A, C \6\, D    .236(b), .316, .408,    I-D
                                                                                                                     .440, .500, .501,
                                                                                                                     .525, .526, .527,
                                                                                                                     .602, .908(b), .1000,
                                                                                                                     .1020.
o-Toluidine....................      C        S/P         II        B/3    PV           Closed       A, C           .316, .408, .525,       I-D
                                                                                                                     .526, .933, .1020.
Tributyl phosphate.............      B         P         III         NR    Open         Open         A              .409..................  I-D
1,2,3-Trichlorobenzene (molten)      A        S/P         I         B/3    PV           Closed       A, C, D        .316, .408, .440,       I-D
                                                                                                                     .526, .908(b), .933.
1,2,4-Trichlorobenzene.........      B        S/P         II         4m    PV           Restr        A, B,C,        .409, .440, .526,       I-D
                                                                                                                     .908(b),.
1,1,1-Trichloroethane..........      C         P         III         NR    Open         Open         A              .409..................  I-D
1,1,2-Trichloroethane..........      C        S/P        III        B/3    PV           Restr        NSR            .409, .525, .526,       I-D
                                                                                                                     .933, .1020.
Trichloroethylene..............      C        S/P        III        B/3    PV           Restr        NSR            .316, .409, .525,       I-D
                                                                                                                     .526, .1020.
1,2,3-Trichloropropane.........      C        S/P         II        B/3    PV           Closed       A, B, C, D     .316, .408, .525,       I-D
                                                                                                                     .526, .933, .1020.
1,1,2-Trichloro-1,2,2-               C         P         III         NR    Open         Open         NSR            None..................  NA
 trifluoroethane.
Tricresyl phosphate (less than       A         P          II         NR    Open         Open         A              .409..................  I-D
 1% of the ortho isomer).
Tricresyl phosphate (1% or more      A        S/P         I          4m    PV           Closed       A, B           .408, .525(a), (c),     I-D
 of the ortho isomer).                                                                                               (d), (e), .1020.
Tridecanoic acid...............      B         P         III         NR    Open         Open         A              .409, .440, .488,       NA
                                                                                                                     .908(a), (b).
Triethanolamine................      D         S         III         NR    Open         Open         A              .236(a), (b), (c), (g)  I-C
Triethylamine..................      C        S/P         II        B/3    PV           Restr        A, B, C        .236(b), (c), .409,     I-C
                                                                                                                     .525, .526, .527,
                                                                                                                     .1020.
Triethylbenzene................      A         P          II         NR    Open         Open         A              .409..................  I-D
Triethylene glycol di-(2-           [C]        P         III         NR    Open         Open         A              None..................  I-C
 ethylbutyrate).
Triethylenetetramine...........      D         S         III         NR    Open         Open         A              .236(a), (b), (c).....  I-C
Triethyl phosphite.............      B        S/P        III        B/3    PV           Restr        A, B, D        .409, .526............  NA
Triisopropylated phenyl              A         P          II         NR    Open         Open         A              .409..................  NA
 phosphates.
Trimethylacetic acid...........      D         S         III         4m    PV           Restr        A, C           .238(a), .266, .554...  I-D
Trimethylamine solution (30% or      C        S/P         II        B/3    PV           Closed       A, C           .236(a), (b), (c),      I-C
 less).                                                                                                              (g), .372, .408,
                                                                                                                     .440, .525, .526,
                                                                                                                     .527, .908(b), .1020.
Trimethylbenzene (all isomers).      A         P         III         4m    PV           Restr        A              .409..................  I-D
Trimethylhexamethylenediamine        D         S         III         NR    Open         Open         A, C           .236(a), (b), (c),      NA
 (2,2,4- and 2,4,4- isomers).                                                                                        (g), .409.
Trimethylhexamethylene               B        S/P         II        B/3    PV           Closed       A, C \6\       .316, .409, .500,       NA
 diisocyanate (2,2,4- and 2,4,4-                                                                                     .501, .525, .526,
  isomers) \6\.                                                                                                      .602, .1000, .1020.
2,2,4-Trimethyl-1,3-pentanediol-     C         P         III         NR    Open         Open         A              None..................  I-D
 1-isobutyrate.
Trimethyl phosphite............               S         III         4m    PV           Restr        A, D           .409, .526, .602,       I-D
                                                                                                                     .1000.
1,3,5-Trioxane.................      D         S         III         4m    PV           Restr        A, D           .409..................  I-C
Trixylenyl phosphate...........      A         P          I          NR    Open         Open         A              .408..................  NA

[[Page 262]]


Trixylyl phosphate, see
 Trixylenyl phosphate.
Turpentine.....................      B         P         III         4m    PV           Restr        A              .409..................  I-D
Undecanoic acid................      B         P         III         NR    Open         Open         A              .440, .908(a), (b)....  NA
1-Undecene.....................      B         P         III         NR    Open         Open         A              .409..................  I-D
1- Undecyl alcohol.............      B         P         III         NR    Open         Open         A              .409, .440, .908(b)...  I-D
Urea, Ammonium nitrate solution      C        S/P        III         4m    PV           Restr        A              .236(b), .526.........  I-D
 (containing more than 2% NH3).
Valeraldehyde (all isomers)....      C        S/P        III         4m    PV           Restr        A              .409, .500, .526......  I-C
Vinyl acetate..................      C        S/P        III         4m    PV           Restr        A              .409, .912(a)(1),       I-D
                                                                                                                     .1002(a), (b), .1004.
Vinyl ethyl ether..............      C        S/P         II         4m    PV           Closed       A              .236(b), (d), (f),      I-C
                                                                                                                     (g), .252, .372,
                                                                                                                     .408, .440, .500,
                                                                                                                     .515, .526, .527,
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Vinylidene chloride............      D         S          II         4m    PV           Restr        B              .236(a), (b), .372,     I-D
                                                                                                                     .409, .440, .500,
                                                                                                                     .526, .527,
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
Vinyl neodecanate..............      B        S/P        III         NR    Open         Open         A, B           .409, .912(a)(1),       NA
                                                                                                                     .1002(a), (b), .1004.
Vinyltoluene...................      A        S/P        III         4m    PV           Restr        A, B, D        .236(a), (b), (c),      I-D
                                                                                                                     (g), .409,
                                                                                                                     .912(a)(1), .1002(a),
                                                                                                                     (b), .1004.
White spirit (low (15-20%)           B         P          II         4m    PV           Restr        A              .409..................  NA
 aromatic).
Xylenes \8\ (ortho-, meta-,          C         P         III         4m    PV           Restr        A              .409, .440, .908(b)     I-D
 para-).                                                                                                             \8\.
Xylenes, Ethylbenzene (10% or        B         P         III         4m    PV           Restr        A              .409..................  NA
 more) mixture.
Xylenol........................      B        S/P        III         NR    Open         Open         A, B           .409, .440, .908(a),    NA
                                                                                                                     (b).
Zinc alkaryl dithiophosphate         C         P         III         NR    Open         Open         A, B           (.440, .903, .908(a))   NA
 (C7-C16).                                                                                                           \1\.
Zinc alkyl dithiophosphate (C3-      B         P         III         NR    Open         Open         A, B           .409; (.440, .908(a))   NA
 C14).                                                                                                               \1\.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Column Heading Footnotes:
a. The cargo name must be as it appears in this column (see 153.900, 153.907). Words in italics are not part of the cargo name but may be used in
  addition to the cargo name. When one entry references another entry by use of the word ``see'', and both names are in roman type, either name may be
  used as the cargo name (e.g., Diethyl ether, see Ethyl ether). However, the referenced entry is preferred.
The provisions contained in 46 CFR part 197, subpart C, apply to liquid cargoes containing 0.5% or more benzene by volume.
b. This column lists the IMO Annex II Pollution Category.
 A, B, C, D--NLS Category of Annex II of MARPOL 73/78.
 III--Appendix III of Annex II (non-NLS cargoes) of MARPOL 73/78.
 --No determination of NLS status. For shipping on an oceangoing vessel, see 46 CFR 153.900(c).
 [ ]--A NLS category in brackets indicates that the product is provisionally categorized and that further data are necessary to complete the evaluation
  of its pollution hazards. Until the hazard evaluation is completed, the pollution category assigned is used.
 @--The NLS category has been assigned by the U.S. Coast Guard, in absence of one assigned by the IMO. The category is based upon a GESAMP Hazard
  Profile or by analogy to a closely related product having an NLS assigned.
c. This column lists the hazard(s) of the commodity:
 S--The commodity is included because of its safety hazards.
 P--The commodity is included because of its pollution hazards.
 S/P--The commodity is included because of both its safety and pollution hazards.
d. This column lists the type of containment system the cargo must have (see 153.230 through 153.232).
e. This column lists the height of any vent riser required (see 153.350 and 153.351).
f. This column lists any vent control valve required (see 153.355).
g. This column lists the type of gauging system required (see 153.400 through 153.406).

[[Page 263]]


h. This column lists the type of fire protection system required. Where more than one system is listed, any listed system may be used. A dry chemical
  system may not be substituted for either type of foam system unless the dry chemical system is listed as an alternative or the substitution is
  approved by Commandant (CG-ENG) (telephone number 202-372-1420) (see 153.460). The types are as follows:
 A is a foam system for water soluble cargoes (polar solvent foam).
 B is a foam system for water insoluble cargoes (non-polar solvent foam).
 C is a water spray system.
 D is a dry chemical system.
 NSR means there is no special requirement applying to fire protection systems.
i. This column lists sections that apply to the cargo in addition to the general requirements of this part. The 153 Part number is omitted.
j. This column lists the electrical hazard class and group used for the cargo when determining requirements for electrical equipment under Subchapter J
  (Electrical Engineering) of this chapter.
A number of electrical hazard class and group assignments are based upon that which appears in ``Classification of Gases, Liquids and Volatile Solids
  Relative to Explosion-Proof Electrical Equipment'', Publication NMAB 353-5, National Academy Press, 1982, when not appearing in NFPA 497M, ``Manual
  for Classification of Gases, Vapors and Dusts for Electrical Equipment in Hazardous (Classified) Locations.''
The I-B electrical hazard does not apply to weather deck locations (see 46 CFR Part 111) for inorganic acids: Chlorosulfonic acid; Hydrochloric acid;
  Nitrating acid; Nitric acid (70% or less); Oleum; Phosphoric acid; Sulfuric acid.
Abbreviations used in the Table:
 NR--No requirement.
 NA--Not applicable.
Abbreviations for Noxious Liquid cargoes:
 N.F.--non-flammable (flash point greater than 60 deg C (140 deg F) closed cup (cc)).
 F.--flammable (flash point less than or equal to 60 deg C (140 deg F) closed cup (cc)).
 n.o.s.--not otherwise specified.
 ST--Ship type.
 Cat--Pollution category.
Footnotes for Specific Cargoes:
1. Special applicability:
 153.440 and .908(a) apply to the chemical, and mixtures containing the chemical, with a viscosity of 25 mPa.s at 20 deg C (68 deg F).
 153.440 and .908(b) apply to the chemical, and mixtures containing the chemical, with a melting point of 0 deg C (32 deg F) and above.
 153.488 applies to the chemical, and mixtures containing the chemical, with a melting point of 15 deg C (59 deg F) and above.
2. Benzene containing cargoes.
 Applies to mixtures containing no other components with safety hazards and where the pollution category is C or less.
3. Diammonium salt of Zinc ethylenediaminetetraacetic acid solution; Tetraethylenepentamine.
 Aluminum is a questionable material of construction with this cargo since pitting and corrosion has been reported. The IMO Chemical Code prohibits
  aluminum as a material of construction for this cargo.
4. 2,4-Dichlorophenol.
 Some tank pitting has been reported when this cargo is contaminated with water, including moisture in the air. The IMO Chemical Code requires that the
  vapor space over this cargo be kept dry.
5. Reserved.
6. Diphenylmethane diisocyanate; Hexamethylene diisocyanate; Isophorone diisocyanate; Polymethylene polyphenyl isocyanate; Toluene diisocyanate;
  Trimethylhexamethylene diisocyanate (2,2,4- and 2,4,4- isomers).
 Water is effective in extinguishing open air fires but will generate hazardous quantities of gas if put on the cargo in enclosed spaces.
7. Maleic anhydride; Nitroethane; Nitroethane, 1-Nitropropane mixtures; 1- or 2-Nitropropane; Nitropropane, Nitroethane mixtures.
 Dry chemical extinguishers should not be used on fires involving these cargoes since some dry chemicals may react with the cargo and cause an
  explosion.
8. Xylenes.
 Special requirement .908(b) only applies to the para- (p-) isomer, and mixtures containing the para-isomer having a melting point of 0 deg C (32 deg F)
  or more.


[USCG 2000-7079, 65 FR 67196, Nov. 8, 2000, as amended by USCG-2012-
0832, 77 FR 59785, Oct. 1, 2012]

[[Page 264]]



Sec. Table 2 to Part 153--Cargoes Not Regulated Under Subchapters D or O
      of This Chapter When Carried in Bulk on Non-oceangoing Barges

    The cargoes listed in this table are not regulated under subchapter
D or O of this title when carried in bulk on non-oceangoing barges.
Category A, B, or C noxious liquid substance (NLS) cargo, as defined in
Sec. 153.2 of this chapter, listed in this table, or any mixture
containing one or more of these cargoes, must be carried under this
subchapter if carried in bulk on an oceangoing ship. Requirements for
Category D NLS cargoes and mixtures of non-NLS cargoes with Category D
NLS cargoes are in 33 CFR part 151.

------------------------------------------------------------------------
                                                               Pollution
                           Cargoes                             Category
------------------------------------------------------------------------
2-Amino-2-hydroxymethyl-1,3-propanediol solution............        III
Ammonium hydrogen phosphate solution........................       D
Ammonium lignosulfonate solution, see also Lignin liquor....      III
Ammonium nitrate solution (45% or less).....................          D
Ammonium nitrate, Urea solution (2% or less NH 3), see also           D
 Urea, Ammonium nitrate solution (2% or less NH3)...........
Ammonium phosphate, Urea solution, see also Urea, Ammonium            D
 phosphate solution.........................................
Ammonium polyphosphate solution.............................          D
Ammonium sulfate solution (20% or less).....................          D
Ammonium thiosulfate solution (60% or less).................           C
Apple juice.................................................        III
Calcium bromide solution....................................        III
Calcium carbonate slurry....................................        III
Calcium chloride solution...................................        III
Calcium hydroxide slurry....................................          D
Calcium lignosulfonate solution, see also Lignin liquor.....        III
Calcium nitrate, Magnesium nitrate, Potassium chloride              III
 solution...................................................
Caramel solutions...........................................        III
Chlorinated paraffins (C14-C17) (with 52% Chlorine).........        III
2-Chloro-4-ethylamino-6-isopropylamino-5-triazine solution..          
Choline chloride solution...................................          D
Clay slurry.................................................        III
Coal slurry.................................................        III
Dextrose solution, see Glucose solution.....................
Diethylenetriamine pentaacetic acid, pentasodium salt               III
 solution...................................................
1,4-Dihydro-9,10-dihydroxy anthracene, disodium salt                  D
 solution...................................................
Dodecenylsuccinic acid, dipotassium salt solution...........          D
Drilling brine (containing Calcium, Potassium, or Sodium            III
 salts) (see also Potassium chloride solution (10% or more))
Drilling brine (containing Zinc salts)......................          B
Drilling mud (low toxicity) (if non-flammable and non-            [III]
 combustible)...............................................
Ethylenediaminetetraacetic acid, tetrasodium salt solution..          D
Ethylene-Vinyl acetate copolymer (emulsion).................        III
Ferric hydroxyethylethylenediamine triacetic acid, trisodium          D
 salt solution..............................................
Fish solubles (water based fish meal extracts)..............        III
Fructose solution...........................................          
Glucose solution............................................        III
Glycine, sodium salt solution...............................        III
Hexamethylenediamine adipate solution.......................          D
N-(Hydroxyethyl)ethylenediamine triacetic acid, trisodium             D
 salt solution..............................................
Kaolin clay solution........................................        III
Kaolin slurry...............................................        III
Kraft pulping liquor (free alkali content, 1% or less)                
 including: Black, Green, or White liquor...................
Lignin liquor (free alkali content, 1% or less)                       
  including:................................................
    Ammonium lignosulfonate solution........................        III
    Calcium lignosulfonate solution.........................        III
    Sodium lignosulfonate solution..........................        III
Lignin sulfonic acid, sodium salt solution, see also Lignin         III
 liquor or Sodium lignosulfonate solution...................
Magnesium chloride solution.................................        III
Magnesium hydroxide slurry..................................        III
Milk........................................................        III
Molasses....................................................        III
Molasses residue (from fermentation)........................      [III]
Naphthenic acid, sodium salt solution.......................        [A]
Noxious liquid, N.F., (1) n.o.s. (``trade name'' contains             A
 ``principle components'') ST 1, Cat A (if non-flammable or
 non-combustible)...........................................
Noxious liquid, N.F., (3) n.o.s. (``trade name'' contains             A
 ``principle components'') ST 2, Cat A (if non-flammable or
 non-combustible)...........................................
Noxious liquid, N.F., (5) n.o.s. (``trade name'' contains             B
 ``principle components'') ST 2, Cat B (if non-flammable or
 non-combustible)...........................................
Noxious liquid, N.F., (6) n.o.s. (``trade name'' contains             B
 ``principle components'') ST 2, Cat B, mp. equal to or
 greater than 15 deg. C (if non-flammable or non-
 combustible)...............................................
Noxious liquid, N.F., (9) n.o.s. (``trade name'' contains             A
 ``principle components'') ST 3, Cat A (if non-flammable or
 non-combustible)...........................................

[[Page 265]]


Noxious liquid, N.F., (11) n.o.s. (``trade name'' contains            B
 ``principle components'') ST 3, Cat B (if non-flammable or
 non-combustible)...........................................
Noxious liquid, N.F., (12) n.o.s. (``trade name'' contains            B
 ``principle components'') ST 3, Cat B, mp. equal to or
 greater than 15 deg. C (if non-flammable or non-
 combustible)...............................................
Noxious liquid, N.F., (15) n.o.s. (``trade name'' contains             C
 ``principle components'') ST 3, Cat C (if non-flammable or
 non-combustible)...........................................
Noxious liquid, n.o.s. (17) (``trade name,'' contains                 D
 ``principal components''), Category D (if non-flammable or
 non-combustible)...........................................
Non-noxious liquid, n.o.s. (18) (``trade name,'' contains           III
 ``principal components''), Appendix III (if non-flammable
 or non-combustible)........................................
Pentasodium salt of Diethylenetriamine pentaacetic acid
 solution, see Diethylenetriamine pentaacetic acid,
 pentasodium salt solution..................................
Polyaluminum chloride solution..............................        III
Potassium chloride solution (10% or more)(see also the              III
 drilling brines entry).....................................
Sewage sludge, treated (treated so as to pose no additional           
 decompositional and fire hazard; stable, non-corrosive, non-
 toxic, non-flammable)......................................
Silica slurry...............................................      [III]
Sludge, treated (treated so as to pose no additional                  
 decompositional and fire hazard; stable, non-corrosive, non-
 toxic, non-flammable)......................................
Sodium acetate, Glycol, Water mixture (containing 1% or               
 less, Sodium hydroxide) (if non-flammable or non-
 combustible)...............................................
Sodium aluminosilicate slurry...............................        III
Sodium carbonate solution...................................          D
Sodium lignosulfonate solution, see also Lignin liquor......        III
Sodium naphthenate solution (free alkali content, 3% or
 less), see Naphthenic acid, sodium salt solution...........
Sodium poly(4+)acrylate solution............................        III
Sodium silicate solution....................................           C
Sodium sulfate solution.....................................        III
Sorbitol solution...........................................        III
Sulfonated polyacrylate solution............................        III
Tetrasodium salt of Ethylenediaminetetraaacetic acid
 solution, see Ethylenediaminetetraacetic acid, tetrasodium
 salt solution..............................................
Titanium dioxide slurry.....................................        III
1,1,1-Trichloroethane.......................................           C
1,1,2-Trichloro-1,2,2-trifluoroethane.......................           C
Trisodium salt of N-(Hydroxyethyl)ethylenediamine triacetic
 acid solution, see N-(Hydroxyethyl)ethylenediamine
 triacetic acid, trisodium salt solution....................
Urea, Ammonium mono- and di-hydrogen phosphate, Potassium             D
 chloride solution..........................................
Urea, Ammonium nitrate solution (2% or less NH3), see also            D
 Ammonium nitrate, Urea solution (2% or less)...............
Urea, Ammonium phosphate solution, see also Ammonium                  D
 phosphate, Urea solution...................................
Urea solution...............................................        III
Vanillan black liquor (free alkali content, 1% or less).....          
Vegetable protein solution (hydrolysed).....................        III
Water.......................................................        III
Zinc bromide, Calcium bromide solution, see Drilling brine
 (containing Zinc salts)....................................

------------------------------------------------------------------------
Explanation of Symbols: As used in this table, the following stand for:
A, B, C, D--NLS Category of Annex II of MARPOL 73/78.
I--Considered an ``oil'' under Annex I of MARPOL 73/78.
III--Appendix III of Annex II (non-NLS cargoes) of MARPOL 73/78.
LFG--Liquefied flammable gas.
--No determination of NLS status. For shipping on an oceangoing vessel,
  see 46 CFR 153.900(c).
[ ]--A NLS category in brackets indicates that the product is
  provisionally categorized and that further data are necessary to
  complete the evaluation of its pollution hazards. Until the hazard
  evaluation is completed, the pollution category assigned is used.
@The NLS category has been assigned by the U.S. Coast Guard, in absence
  of one assigned by the IMO. The category is based upon a GESAMP Hazard
  Profile or by analogy to a closely related product having an NLS
  assigned.

Abbreviations for Noxious liquid Cargoes:
 N.F.--non-flammable (flash point greater than 60 degrees C (140 degrees
  F) cc).
 n.o.s.--not otherwise specified.
 ST--Ship type.
 Cat--Pollution category.


[CGD 88-100, 54 FR 43584, Oct. 26, 1989; CGD 92-100, 59 FR 17044, Apr.
11, 1994, as amended by CGD 94-900, 59 FR 45142, Aug. 31, 1994; CGD 94-
902, 60 FR 34043, June 29, 1995; CGD 95-900, 60 FR 34052, June 29, 1995;
USCG 2000-7079, 65 FR 67213, Nov. 8, 2000]

    Effective Date Note: By USCG-2013-0423, 78 FR 50208, Aug. 16, 2013,
table 2 to part 153 was revised, effective Sept. 16, 2013. At 78 FR
56837, Sept. 16, 2013, the effectiveness was delayed until Jan. 16,
2014. At 79 FR 2106, Jan. 13, 2014, the effectiveness was delayed until
Jan. 16, 2015. For the convenience of the user, the revised text is set
forth as follows:

[[Page 266]]



Sec. Table 2 to Part 153--Cargoes Not Regulated Under Subchapters D or O
      of This Chapter When Carried in Bulk on Non-Oceangoing Barges

 [The cargoes listed in this table are not regulated under subchapter D
    or O of this title when carried in bulk on non-oceangoing barges.
 Category X, Y, or Z noxious liquid substance (NLS) cargo, as defined in
     Annex II of MARPOL 73/78, listed in this table, or any mixture
   containing one or more of these cargoes, must be carried under this
          subchapter if carried in bulk on an oceangoing ship.]
------------------------------------------------------------------------
                                                               Pollution
                           Cargoes                             category
------------------------------------------------------------------------
Acrylic acid/ethenesulfonic acid copolymer with phosphonate           Z
 groups, sodium salt solution *.............................
Aluminum sulfate solution *.................................          Y
2-Amino-2-hydroxymethyl-1,3-propanediol solution............          
Ammonium hydrogen phosphate solution........................          Z
Ammonium lignosulfonate solutions, see also Lignin liquor...          Z
Ammonium nitrate solution (45% or less).....................          
Ammonium phosphate, urea solution, see also Urea, Ammonium            
 phosphate solution.........................................
Ammonium polyphosphate solution.............................          Z
Ammonium sulfate solution...................................          Z
Ammonium thiosulfate solution (60% or less).................          Z
Apple juice.................................................         OS
Calcium bromide solution....................................          Z
Calcium carbonate slurry....................................         OS
Calcium chloride solution...................................          Z
Calcium hydroxide slurry....................................          Z
Calcium lignosulfonate solution, see also Lignin liquor.....          Z
Calcium nitrate solutions (50% or less) *...................          Z
Calcium nitrate/Magnesium nitrate/Potassium chloride                  Z
 solution...................................................
Caramel solutions...........................................          
Chlorinated paraffins (C14-C17) (with 50% Chlorine or more,           X
 and less than 1% C13 or shorter chains) *..................
Chlorinated paraffins (C14-C17) (with 52% Chlorine).........          
2-Chloro-4-ethylamino-6-isopropylamino-5-triazine solution..          
4-Chloro-2-methylphenoxyacetic acid, dimethylamine salt               Y
 solution *.................................................
Choline chloride solutions..................................          Z
Clay slurry.................................................         OS
Coal slurry.................................................         OS
Dextrose solution, see Glucose solution.....................
Diethylenetriamine pentaacetic acid, pentasodium salt                 Z
 solution...................................................
1,4-Dihydro-9,10-dihydroxy anthracene, disodium salt                  
 solution...................................................
Dodecenylsuccinic acid, dipotassium salt solution...........          
Drilling brine (containing Calcium, Potassium, or Sodium              
 salts) (see also Potassium chloride solution (10% or more))
Drilling brines, including: Calcium bromide solution,                 Z
 Calcium chloride solution and Sodium chloride solution (if
 non-flammable and non-combustible).........................
Drilling brines (containing Zinc salts).....................          X
Drilling mud (low toxicity) (if non-flammable and non-                
 combustible)...............................................
Ethylene-Vinyl acetate copolymer (emulsion).................          Y
Ferric hydroxyethylethylenediamine triacetic acid, trisodium          
 salt solution..............................................
Fish solubles (water based fish meal extracts)..............          
Fructose solution...........................................          
Glucose solution............................................         OS
Glycine, Sodium salt solution...............................          Z
Glyphosate solution (not containing surfactant) *...........          Y
Hexamethylenediamine adipate solution.......................          
Hexamethylenediamine adipate (50% in water).................          Z
N-(Hydroxyethyl)ethylenediamine triacetic acid, trisodium             Y
 salt solution..............................................
Kaolin clay solution........................................          
Kaolin slurry...............................................         OS
Kraft pulping liquor (free alkali content, 1% or less)                
 including: Black, Green, or White liquor...................
Lignin liquor (free alkali content, 1% or less).............          Z
    including:
        Ammonium lignosulfonate solutions...................          Z
        Calcium lignosulfonate solutions....................          Z
        Sodium lignosulfonate solution......................          Z
Ligninsulfonic acid, Sodium salt solution...................          Z
Magnesium chloride solution.................................          Z
Magnesium hydroxide slurry..................................          Z
Magnesium sulfonate solution................................          
Maltitol solution *.........................................         OS
Microsillica slurry *.......................................         OS
Milk........................................................          
Molasses....................................................         OS
Molasses residue (from fermentation)........................          
Naphthalenesulfonic acid-Formaldehyde copolymer, sodium salt          Z
 solution...................................................
Naphthenic acid, sodium salt solution.......................          
Nitrilotriacetic acid, trisodium salt solution *............          Y
Noxious liquid, NF, (1) n.o.s. (``trade name'' contains               X
 ``principle components'') ST 1, Cat X (if non-flammable and
 non-combustible)...........................................

[[Page 267]]


Noxious liquid, NF, (3) n.o.s. (``trade name'' contains               X
 ``principle components'') ST 2, Cat X (if non-flammable and
 non-combustible)...........................................
Noxious liquid, NF, (5) n.o.s. (``trade name'' contains               Y
 ``principle components'') ST 2, Cat Y (if non-flammable and
 non-combustible)...........................................
Noxious liquid, NF, (7) n.o.s. (``trade name'' contains               Y
 ``principle components'') ST 3, Cat Y (if non-flammable and
 non-combustible)...........................................
Noxious liquid, NF, (9) n.o.s. (``trade name'' contains               Z
 ``principle components'') ST 3, Cat Z (if non-flammable and
 non-combustible)...........................................
Noxious liquid, NF, (11) n.o.s. (``trade name'' contains              Z
 ``principle components'') Cat Z (if non-flammable and non-
 combustible)...............................................
Noxious liquid, NF, (12) n.o.s. (``trade name'' contains             OS
 ``principle components'') Cat OS (if non-flammable and non-
 combustible)...............................................
Orange juice (concentrated) *...............................         OS
Orange juice (not concentrated) *...........................         OS
Pentasodium salt of Diethylenetriamine pentaacetic acid
 solution, see Diethylenetriamine pentaacetic acid,
 pentasodium salt solution..................................
Polyaluminum chloride solution..............................          Z
Potassium chloride solution (26% or more), see Drilling
 brines, including: Calcium bromide solution, Calcium
 chloride solution and Sodium chloride solution.............
Potassium chloride solution (less than 26%) *...............         OS
Potassium formate solutions *...............................          Z
Potassium thiosulfate (50% or less) *.......................          Y
Sewage sludge, treated (treated so as to pose no additional           
 decompositional and fire hazard; stable, non-corrosive, non-
 toxic, non-flammable)......................................
Silica slurry...............................................          
Sludge, treated (treated so as to pose no additional                  
 decompositional and fire hazard; stable, non-corrosive, non-
 toxic, non-flammable)......................................
Sodium acetate, Glycol, Water mixture (containing 1% or less          
 Sodium hydroxide) (if non-flammable or non-combustible)....
Sodium acetate solutions....................................          Z
Sodium alkyl (C14-C17) sulfonates (60-65% solution) *.......          Y
Sodium aluminosilicate slurry...............................          Z
Sodium bicarbonate solution (less than 10%) *...............         OS
Sodium carbonate solution...................................          Z
Sodium hydrogen sulfide (6% or less)/Sodium carbonate (3% or          Z
 less) solution *...........................................
Sodium lignosulfonate solution, see also Lignin liquor......          Z
Sodium naphthenate solution (free alkali content, 3% or
 less), see Naphthenic acid, sodium salt solution...........
Sodium poly(4+)acrylate solutions...........................          Z
Sodium silicate solution....................................          Y
Sodium sulfate solutions....................................          Z
Sodium sulfite solution (25% or less) *.....................          Y
Sodium thiocyanate solution (56% or less) *.................          Y
Sorbitol solution...........................................         OS
Sulfonated polyacrylate solution............................          Z
Tetrasodium salt of Ethylenediaminetetraaacetic acid
 solution, see Ethylenediaminetetraacetic acid, tetrasodium
 salt solution..............................................
Titanium dioxide slurry.....................................          Z
1,1,1-Trichloroethane.......................................          Y
1,1,2-Trichloro-1,2,2-trifluoroethane.......................          Y
Trisodium salt of N-(Hydroxyethyl)ethylenediamine triacetic
 acid solution, see N-(Hydroxyethyl)ethylenediamine
 triacetic acid, trisodium salt solution....................
Urea, Ammonium mono- and di-hydrogen phosphate, Potassium             
 chloride solution..........................................
Urea/Ammonium nitrate solution *............................          Z
Urea/Ammonium phosphate solution............................          Y
Urea solution...............................................          Z
Vanillan black liquor (free alkali content, 1% or less).....          
Vegetable protein solution (hydrolyzed) (if non-flammable            OS
 and non-combustible).......................................
Water.......................................................         OS
Zinc bromide, Calcium bromide solution, see Drilling brines
 (containing Zinc salts)....................................
------------------------------------------------------------------------
Explanation of Symbols Used in this Table:
X, Y, Z--NLS Category of Annex II of MARPOL 73/78.
--No determination of NLS status. For shipping on an oceangoing vessel,
  see 46 CFR 153.900(c).
OS--Other substances, at present considered to present no harm to marine
  resources, human health, amenities or other legitimate uses of the sea
  when discharged into the sea from tank cleaning or deballasting
  operations.
Abbreviations for Noxious Liquid Cargoes Used In This Table:
Cat--Pollution category.
NF--Non-flammable (flash point greater than 60 degrees C (140 degrees F)
  cc).
n.o.s.--Not otherwise specified.
ST--Ship type.
*--From the March 2012 Annex to the 2007 IBC Code.


[[Page 268]]



                 Sec. Appendix I to Part 153 [Reserved]



       Sec. Appendix II to Part 153--Metric Units Used in Part 153

----------------------------------------------------------------------------------------------------------------
                                                                                          Equivalent to English
              Parameter                    Metric (SI unit)           Abbreviation           or common metric
----------------------------------------------------------------------------------------------------------------
Force................................  Newton.................  N......................  0.225 lbs.
Length...............................  Meter..................  m......................  39.37 in.
                                       Centimeter.............  cm.....................  .3937 in.
Pressure.............................  Pascal.................  Pa.....................  1.450x10-4 lbs/in \2\.
                                       Kilo-Pascal (1,000       kPa....................  0.145 lbs/in \2\.
                                        Pascals).
                                       Kilo-Pascal............  kPa....................  1.02x10-2 kg/cm\2\.
                                       ......do...............  kPa....................  1x10 \3\ N/m \2\.
Temperature..........................  Degree Celsius.........  [deg]C.................  5/9 ([deg]F-32).
Viscosity............................  milli-Pascal second....  mPa. sec...............  1.0 centipoise.
Volume...............................  Cubic meter............  m \3\..................  264 gallons (gal).
                                       ......do...............  m \3\..................  35.3 ft\3\.
----------------------------------------------------------------------------------------------------------------


[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 78-128, 47 FR
21212, May 17, 1982; CGD 81-101, 52 FR 7799, Mar. 12, 1987. Redesignated
by CGD 92-100, 59 FR 17045, Apr. 11, 1994]



PART 154_SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK
LIQUEFIED GASES--Table of Contents



                            Subpart A_General

Sec.
154.1 Incorporation by reference.
154.3 Purpose.
154.5 Applicability.
154.7 Definitions, acronyms, and terms.
154.9 Issuance of documents.
154.12 Existing gas vessel: Endorsements and requirements.
154.15 U.S. flag vessel: Endorsement application.
154.17 U.S. flag vessel: Certificate of Inspection endorsement.
154.19 U.S. flag vessel: IMO certificate issuance.
154.22 Foreign flag vessel: Certificate of Compliance endorsement
          application.
154.24 Foreign flag vessel: IMO Certificate.
154.30 [Reserved]
154.32 Equivalents.
154.34 Special approval: Requests.
154.36 Correspondence and vessel information: Submission.
154.40 Right of appeal.

                     Subpart B_Inspections and Tests

            Examination Requirements for Foreign Flag Vessels

154.150 Examination required for a Certificate of Compliance.
154.151 Procedures for having the Coast Guard examine a vessel for a
          Certificate of Compliance.

              Subpart C_Design, Construction, and Equipment

                             Hull Structure

154.170 Outer hull steel plating.
154.172 Contiguous steel hull structure.
154.174 Transverse contiguous hull structure.
154.176 Longitudinal contiguous hull structure.
154.178 Contiguous hull structure: Heating system.
154.180 Contiguous hull structure: Welding procedure.
154.182 Contiguous hull structure: Production weld test.
154.188 Membrane tank: Inner hull steel.
154.195 Aluminum cargo tank: Steel enclosure.

            Ship Survival Capability and Cargo Tank Location

154.200 Stability requirements: General.
154.235 Cargo tank location.

                            Ship Arrangements

154.300 Segregation of hold spaces from other spaces.
154.305 Segregation of hold spaces from the sea.
154.310 Cargo piping systems.
154.315 Cargo pump and cargo compressor rooms.
154.320 Cargo control stations.
154.325 Accommodation, service, and control spaces.
154.330 Openings to accommodation, service, or control spaces.
154.340 Access to tanks and spaces in the cargo area.
154.345 Air locks.
154.350 Bilge and ballast systems in the cargo area.
154.355 Bow and stern loading piping.
154.356 Cargo emergency jettisoning piping.

[[Page 269]]

                        Cargo Containment Systems

154.401 Definitions.
154.405 Design vapor pressure (Po) of a cargo tank.
154.406 Design loads for cargo tanks and fixtures: General.
154.407 Cargo tank internal pressure head.
154.408 Cargo tank external pressure load.
154.409 Dynamic loads from vessel motion.
154.410 Cargo tank sloshing loads.
154.411 Cargo tank thermal loads.
154.412 Cargo tank corrosion allowance.

                             Integral Tanks

154.418 General.
154.419 Design vapor pressure.
154.420 Tank design.
154.421 Allowable stress.

                             Membrane Tanks

154.425 General.
154.426 Design vapor pressure.
154.427 Membrane tank system design.
154.428 Allowable stress.
154.429 Calculations.
154.430 Material test.
154.431 Model test.
154.432 Expansion and contraction.

                           Semi-Membrane Tanks

154.435 General.
154.436 Design vapor pressure.

                         Independent Tank Type A

154.437 General.
154.438 Design vapor pressure.
154.439 Tank design.
154.440 Allowable stress.

                         Independent Tank Type B

154.444 General.
154.445 Design vapor pressure.
154.446 Tank design.
154.447 Allowable stress.
154.448 Calculations.
154.449 Model test.

          Independent Tank Type C and Process Pressure Vessels

154.450 General.
154.451 Design vapor pressure.
154.452 External pressure.
154.453 Failure to meet independent tank type C standards.

                            Secondary Barrier

154.459 General.
154.460 Design criteria.

                               Insulation

154.465 General.
154.466 Design criteria.
154.467 Submission of insulation information.

                             Support System

154.470 General.
154.471 Design criteria.
154.476 Cargo transfer devices and means.

                    Cargo and Process Piping Systems

154.500 Cargo and process piping standards.
154.503 Piping and piping system components: Protection from movement.
154.506 Mechanical expansion joint: Limits in a piping system.
154.512 Piping: Thermal isolation.
154.514 Piping: Electrical bonding.
154.516 Piping: Hull protection.
154.517 Piping: Liquid pressure relief.
154.519 Piping relief valves.
154.520 Piping calculations.
154.522 Materials for piping.
154.524 Piping joints: Welded and screwed couplings.
154.526 Piping joints: Flange connection.
154.528 Piping joints: Flange type.
154.530 Valves: Cargo tank MARVS 69 kPa gauge (10 psig) or lower.
154.532 Valves: Cargo tank MARVS greater than 69 kPa gauge (10 psig).
154.534 Cargo pumps and cargo compressors.
154.536 Cargo tank gauging and measuring connections.
154.538 Cargo transfer connection.
154.540 Quick-closing shut-off valves: Emergency shut-down system.
154.544 Quick-closing shut-off valves.
154.546 Excess flow valve: Closing flow.
154.548 Cargo piping: Flow capacity.
154.550 Excess flow valve: Bypass.

                               Cargo Hose

154.551 Cargo hose: General.
154.552 Cargo hose: Compatibility.
154.554 Cargo hose: Bursting pressure.
154.556 Cargo hose: Maximum working pressure.
154.558 Cargo hose: Marking.
154.560 Cargo hose: Prototype test.
154.562 Cargo hose: Hydrostatic test.

                                Materials

154.605 Toughness test.
154.610 Design temperature not colder than 0 [deg]C (32 [deg]F).
154.615 Design temperature below 0 [deg]C (32 [deg]F) and down to -55
          [deg]C (-67 [deg]F).
154.620 Design temperature below -55 [deg]C (-67 [deg]F) and down to -
          165 [deg]C (-265 [deg]F).
154.625 Design temperature below 0 [deg]C (32 [deg]F) and down to -165
          [deg]C (-265 [deg]F).
154.630 Cargo tank material.

                              Construction

154.650 Cargo tank and process pressure vessel welding.
154.655 Stress relief for independent tanks type C.
154.660 Pipe welding.

[[Page 270]]

154.665 Welding procedures.

                 Cargo Pressure and Temperature Control

154.701 Cargo pressure and temperature control: General.
154.702 Refrigerated carriage.
154.703 Methane (LNG).
154.705 Cargo boil-off as fuel: General.
154.706 Cargo boil-off as fuel: Fuel lines.
154.707 Cargo boil-off as fuel: Ventilation.
154.708 Cargo boil-off as fuel: Valves.
154.709 Cargo boil-off as fuel: Gas detection equipment.

                           Cargo Vent Systems

154.801 Pressure relief systems.
154.802 Alternate pressure relief settings.
154.804 Vacuum protection.
154.805 Vent masts.
154.806 Capacity of pressure relief valves.

            Atmospheric Control in Cargo Containment Systems

154.901 Atmospheric control within cargo tanks and cargo piping systems.
154.902 Atmospheric control within hold and interbarrier spaces.
154.903 Inert gas systems: General.
154.904 Inert gas system: Controls.
154.906 Inert gas generators.
154.908 Inert gas generator: Location.
154.910 Inert gas piping: Location.
154.912 Inerted spaces: Relief devices.

                               Electrical

154.1000 Applicability.
154.1002 Definition.
154.1005 Equipment approval.
154.1010 Electrical equipment in gas-dangerous space or zone.
154.1015 Lighting in gas-dangerous space.
154.1020 Emergency power.

                              Firefighting

                Firefighting System: Exterior Water Spray

154.1105 Exterior water spray system: General.
154.1110 Areas protected by system.
154.1115 Discharge.
154.1120 Nozzles.
154.1125 Pipes, fittings, and valves.
154.1130 Sections.
154.1135 Pumps.

                    Firefighting System: Dry Chemical

154.1140 Dry chemical system: General.
154.1145 Dry chemical supply.
154.1150 Distribution of dry chemical.
154.1155 Hand hose line: Coverage.
154.1160 Monitor coverage of system.
154.1165 Controls.
154.1170 Hand hose line: General.

                Cargo Area: Mechanical Ventilation System

154.1200 Mechanical ventilation system: General.
154.1205 Mechanical ventilations system: Standards.
154.1210 Hold space, void space, cofferdam, and spaces containing cargo
          piping.

                             Instrumentation

154.1300 Liquid level gauging system: General.
154.1305 Liquid level gauging system: Standards.
154.1310 Closed gauge shut-off valve.
154.1315 Restricted gauge excess flow valve.
154.1320 Sighting ports, tubular gauge glasses, and flat plate type
          gauge glasses.
154.1325 Liquid level alarm system: All cargo tanks.
154.1330 Liquid level alarm system: Independent tank type C.
154.1335 Pressure and vacuum protection.
154.1340 Temperature measuring devices.
154.1345 Gas detection.
154.1350 Flammable gas detection system.
154.1360 Oxygen analyzer.
154.1365 Audible and visual alarms.
154.1370 Pressure gauge and vacuum gauge marking.
154.1375 Readout for temperature measuring device: Marking.

                            Safety Equipment

154.1400 Safety equipment: All vessels.
154.1405 Respiratory protection.
154.1410 Decontamination shower.
154.1415 Air compressor.
154.1420 Stretchers and equipment.
154.1430 Equipment locker.
154.1435 Medical first aid guide.
154.1440 Antidotes.

           Subpart D_Special Design and Operating Requirements

154.1700 Purpose.
154.1702 Materials of construction.
154.1705 Independent tank type C.
154.1710 Exclusion of air from cargo tank vapor spaces.
154.1715 Moisture control.
154.1720 Indirect refrigeration.
154.1725 Ethylene oxide.
154.1730 Ethylene oxide: Loading and off-loading.
154.1735 Methyl acetylene-propadiene mixture.
154.1740 Vinyl chloride: Inhibiting and inerting.
154.1745 Vinyl chloride: Transferring operations.
154.1750 Butadiene or vinyl chloride: Refrigeration system.
154.1755 Nitrogen.
154.1760 Liquid ammonia.

[[Page 271]]

                          Subpart E_Operations

154.1800 Special operating requirements under Part 35 of this chapter.
154.1801 Certificates, letters, and endorsements: U.S. flag vessels.
154.1802 Certificates, letters, and endorsements: Foreign flag vessels.
154.1803 Expiration of Certificates of Compliance.
154.1804 Document posted in wheelhouse.
154.1806 Regulations on board.
154.1808 Limitations in the endorsement.
154.1809 Loading and stability manual.
154.1810 Cargo manual.
154.1812 Operational information for terminal personnel.
154.1814 Cargo information cards.
154.1816 Cargo location plan.
154.1818 Certification of inhibition.
154.1820 Shipping document.
154.1822 Shipping document: Copy for transfer terminal.
154.1824 Obstruction of pumproom ladderways.
154.1826 Opening of cargo tanks and cargo sampling.
154.1828 Spaces containing cargo vapor: Entry.
154.1830 Warning sign.
154.1831 Persons in charge of transferring liquid cargo in bulk or
          preparing cargo tanks.
154.1834 Cargo transfer piping.
154.1836 Vapor venting as a means of cargo tank pressure and temperature
          control.
154.1838 Discharge by gas pressurization.
154.1840 Protective clothing.
154.1842 Cargo system: Controls and alarms.
154.1844 Cargo tanks: Filling limits.
154.1846 Relief valves: Changing set pressure.
154.1848 Inerting.
154.1850 Entering cargo handling spaces.
154.1852 Air breathing equipment.
154.1854 Methane (LNG) as fuel.
154.1858 Cargo hose.
154.1860 Integral tanks: Cargo colder than -10 [deg]C (14 [deg]F).
154.1862 Posting of speed reduction.
154.1864 Vessel speed within speed reduction.
154.1866 Cargo hose connection: Transferring cargo.
154.1868 Portable blowers in personnel access openings.
154.1870 Bow and stern loading.
154.1872 Cargo emergency jettisoning.

Appendix A to Part 154--Equivalent Stress
Appendix B to Part 154--Stress Analyses Definitions

    Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security
Delegation No. 0170.1.

    Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise
noted.

    Editorial Note: Nomenclature changes to part 154 appear part 154
appear by CGD-95-072, 60 FR 50466, Sept. 29, 1995, CGD-96-041, 61 FR
50732, Sept. 27, 1996, USCG-2009-0702, 74 FR 49235, Sept. 25, 2009, and
USCG-2012-0832, 77 FR 59785, Oct. 1, 2012.



                            Subpart A_General

    Source: CGD 77-069, 52 FR 31626, Aug. 21, 1987, unless otherwise
noted.



Sec. 154.1  Incorporation by reference.

    (a) Certain materials are incorporated by reference into this part
with approval of the Director of the Federal Register in accordance with
5 U.S.C. 552(a). The Office of the Federal Register publishes a list
``Material Approved for Incorporation by Reference,'' which appears in
the Finding Aids section of this volume. To enforce any edition other
than the one listed in paragraph (b) of this section, notice of change
must be published in the Federal Register and the material made
available. All approved material is on file at the Coast Guard
Headquarters. Contact Commandant (CG-ENG), Attn: Office of Design and
Engineering Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King
Jr. Avenue SE., Washington, DC 20593-7509; or contact the National
Archives and Records Administration (NARA). For information on the
availability of this material at NARA, call 202-741-6030, or go to:
http://www.archives.gov/federal--register/code--of--federal--
regulations/ibr--locations.html.
    (b) The materials approved for incorporation by reference in this
part are:

                    American Bureau of Shipping (ABS)

ABS Plaza, 16855 Northchase Drive, Houston, TX 77060
Rules for Building and Classing Steel Vessels, 1981

                  American National Standards Institute

11 West 42nd Street, New York, NY 10036
ANSI Z89.1-69 Safety Requirements for Industrial Head Protection, 1969
ANSI Z87.1-79 Practice for Occupational and Educational Eye and Face
Protection, 1979

[[Page 272]]

            American Society for Testing and Materials (ASTM)

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
ASTM A 20/A 20M-97a, Standard Specification for General Requirements for
Steel Plates for Pressure Vessels--154.610
ASTM F 1014-92, Standard Specification for Flashlights on Vessels--
          154.1400

    Note: All other documents referenced in this part are still in
effect.

                   International Maritime Organization

Publications Section, 4 Albert Embankment, London SE1 7SR, United
Kingdom
Resolution A.328(IX), Code for the Construction and Equipment of Ships
Carrying Liquefied Gases in Bulk, 1976
Code For Existing Ships Carrying Liquefied Gases in Bulk, 1976
Medical First Aid Guide for Use in Accidents Involving Dangerous Goods

                     Underwriters Laboratories, Inc.

12 Laboratory Drive, Research Triangle Park, NC 27709-3995
UL No. 783-79 Standard for Safety, Electric Flashlights for Use in
Hazardous Locations, Class 1, Groups C and D, 1979.

[CGD 77-069, 52 FR 31626, Aug. 21, 1987, as amended by CGD 82-042, 53 FR
17705, May 18, 1988; CGD 82-042, 53 FR 18949, May 25, 1988; CGD 88-070,
53 FR 34535, Sept. 7, 1988; CGD 96-041, 61 FR 50732, Sept. 27, 1996; CGD
97-057, 62 FR 51048, Sept. 30, 1997; USCG-1999-5151, 64 FR 67183, Dec.
1, 1999; USCG-2000-7790, 65 FR 58463, Sept. 29, 2000; 69 FR 18803, Apr.
9, 2004; USCG-2013-0671, 78 FR 60155, Sept. 30, 2013]



Sec. 154.3  Purpose.

    The purpose of this part is to prescribe rules for new and existing
gas vessels.



Sec. 154.5  Applicability.

    This part applies to each self-propelled vessel that has on board
bulk liquefied gases as cargo, cargo residue or vapor, except subpart C
does not apply if the vessel meets Sec. 154.12 (b), (c), or (d).



Sec. 154.7  Definitions, acronyms, and terms.

    As used in this part:
    ``A'' Class Division means a division as defined in Regulation 3 of
Chapter II-2 of the 1974 Safety Convention.
    Accommodation spaces means public spaces, corridors, lavatories,
cabins, offices, hospitals, cinemas, game and hobby rooms, pantries
containing no cooking appliances, and spaces used in a similar fashion.
    Boiling point means the temperature at which a substance's vapor
pressure is equal to the atmospheric barometric pressure.
    Breadth (B) means the maximum width of the vessel in meters measured
amidships to the molded line of the frame in a ship with a metal shell
and to the outer surface of the hull in a ship with a shell of any other
material.
    Cargo area means that part of the vessel that contains the cargo
containment system, cargo pump rooms, cargo compressor rooms, and the
deck areas over the full beam and the length of the vessel above them,
but does not include the cofferdams, ballast spaces, or void spaces at
the after end of the aftermost hold space or the forward end of the
forwardmost hold space.
    Cargo containment system means the arrangement for containment of
the cargo including a primary and secondary barrier, associated
insulation and any intervening spaces, and adjacent structure that is
necessary for the support of these elements.
    Cargo service space means space within the cargo area that is more
than 2 m\2\ (21.5 ft.\2\) in deck area and used for work shops, lockers,
or store rooms.
    Cargo tank means the liquid tight shell that is the primary
container of the cargo.
    Certificate of Compliance means a certificate issued by the Coast
Guard to a foreign flag vessel after it is examined and found to comply
with regulations in this chapter.
    Cofferdam means the isolating space between two adjacent steel
bulkheads or decks, which could be a void space or a ballast space.
    Contiguous hull structure includes the inner deck, the inner bottom
plating, longitudinal bulkhead plating, transverse bulkhead plating,
floors, webs, stringers, and attached stiffeners.
    Control space means those spaces in which the vessel's radio, main
navigating equipment, or the emergency source of power is located or in
which the fire control equipment, other than firefighting control
equipment under Sec. 154.1140 to Sec. 154.1170, is centralized.

[[Page 273]]

    Design temperature means the minimum cargo temperature the Coast
Guard allows for loading, unloading, or carriage.
    Design vapor pressure (Po) means the maximum gauge
pressure at the top of the cargo tank for the design of the cargo tank.
    Document means a Certificate of Inspection for a U.S. flag vessel or
a Certificate of Compliance for a foreign flag vessel.
    Existing gas vessel means a self-propelled vessel that--
    (a) Is delivered on or before October 31, 1976; or
    (b) Is delivered between October 31, 1976 and June 30, 1980, and is
not a new gas vessel.
    Flammable cargoes includes the following liquefied gases from Table
4 (follows Sec. 154.1872):

Acetaldehyde
Butadiene
Butane
Butylene
Dimethylamine
Ethane
Ethylamine
Ethyl chloride
Ethylene
Ethylene oxide
Methane (LNG)
Methyl acetylene-propadiene mixture
Methyl bromide
Methyl chloride
Propane
Propylene
Vinyl chloride

    Gas-dangerous space includes the following spaces:
    (a) A space in the cargo area without arrangements to provide a safe
atmosphere at all times.
    (b) An enclosed space outside the cargo area through which any
piping that may contain liquid or gaseous cargo passes, or within which
that piping terminates, without arrangements to prevent gas from
escaping into the space.
    (c) A cargo containment system and cargo piping.
    (d) A hold space where cargo is carried in a cargo containment
system:
    (1) With a secondary barrier; or
    (2) Without a secondary barrier.
    (e) A space separated from a hold space under paragraph (d)(1) of
this definition by a single gastight boundary.
    (f) A cargo pumproom and a cargo compressor room.
    (g) A zone on the weather deck or a semi-enclosed space on the
weather deck within 3.05 m (10 ft) of any cargo tank outlet, gas or
vapor outlet, cargo pipe flange, cargo valve, or of entrances and
ventilation openings to a cargo pump room or a cargo compressor room.
    (h) Except for existing gas vessels, the weather deck over the cargo
area and 3.05 m (10 ft) forward and aft of the cargo area on the weather
deck to 2.4 m (8 ft) above the weather deck.
    (i) A zone within 2.4 m (8 ft) of the outer surface of a cargo
containment system where the surface is exposed to the weather.
    (j) An enclosed or semi-enclosed space in which there is piping
containing cargo, except those--
    (1) With gas sampling lines for gas detection equipment under Sec.
154.1350(n); or
    (2) In which boil-off gas is used as fuel under Sec. 154.703.
    (k) A space for storage of cargo hoses.
    (l) An enclosed or semi-enclosed space having an opening into any
gas-dangerous space or zone.
    Gas-safe space means a space that is not a gas-dangerous space.
    Hold space means the space enclosed by the vessel's structure in
which there is a cargo containment system.
    IMO stands for the lnternational Maritime Organization.
    IMO Certificate means a Certificate of Fitness for the Carriage of
Liquefied Gases in Bulk issued under the IMO--
    (a) ``Code for the Construction and Equipment of Ships Carrying
Liquefied Gases in Bulk'', adopted November 12, 1975 by Assembly
Resolution A.328(IX), as amended;
    (b) ``Code for Existing Ships Carrying Liquefied Gases in Bulk'',
adopted November 12, 1975, as amended; or
    (c) ``Recommendations Concerning Ships Not Covered by the Code for
the Construction and Equipment of Ships Carrying Liquefied Gases in
Bulk'', (Resolution A.328(IX)), adopted November 12, 1975 by Assembly
Resolution A.329(IX).
    Independent tank is a cargo tank that is permanently affixed to the
vessel, is

[[Page 274]]

self-supporting, and is not part of the hull or essential to the
strength or integrity of the hull.
    Independent tank type A is an independent cargo tank designed
primarily using classification society classical ship structural
analysis procedures.
    Independent tank type B is an independent cargo tank designed from
model tests, refined analytical tools, and analysis methods to determine
stress levels, fatigue life, and crack propagation characteristics.
    Independent tank type C (pressure tank) is an independent cargo tank
meeting pressure vessel criteria where the dominant stress producing
load is design vapor pressure.
    Insulation space means a space, that could be an interbarrier space,
occupied wholly or in part by insulation.
    Integral tank means a cargo tank that is a structural part of the
vessel's hull and is influenced in the same manner and by the same loads
that stress the adjacent hull structure.
    Interbarrier space means the space between a primary and a secondary
barrier, with or without insulation or other material.
    Length (L) is ninety-six percent of the total length in meters on a
waterline at eighty-five percent of the least molded depth measured from
the top of the keel or the length from the foreside of the stem to the
axis of the rudder stock on the waterline, whichever is greater. In
vessels having a rake of keel, the waterline is parallel to the design
waterline.
    Liquefied gas means a cargo having a vapor pressure of 172 kPa (25
psia) or more at 37.8 [deg]C (100 [deg]F).
    MARVS stands for the Maximum Allowable Relief Valve Setting.
    Membrane tank is a cargo tank that is not self-supporting and
consists of a thin layer (membrane) supported through insulation by the
adjacent hull structure.
    New gas vessel means a self-propelled vessel that--
    (a) Is constructed under a building contract awarded after October
31, 1976;
    (b) In the absence of a building contract, has a keel laid or is at
a similar stage of construction after December 31, 1976;
    (c) Is delivered after June 30, 1980; or
    (d) Has undergone a major conversion for which--
    (1) The building contract is awarded after October 31, 1976;
    (2) In the absence of a building contract, conversion is begun after
December 31, 1976; or
    (3) Conversion is completed after June 30, 1980.
    Primary barrier means the inner boundary that contains the cargo
when the cargo containment system includes two boundaries.
    Process pressure vessel means a pressure vessel that is used in a
reliquefaction, cargo heating, or other system that processes cargo.
    Remote group alarm means an audible and visual alarm that alerts
when an alarm condition exists but does not identify that condition.
    Secondary barrier means the liquid resisting outer boundary of a
cargo containment system when the cargo containment system includes two
boundaries.
    Semi-membrane tank is a cargo tank that is not self-supporting and
that can expand and contract due to thermal, hydrostatic, and pressure
loadings. It consists of flat surfaces, supported through insulation by
the adjacent hull structure, and shaped corners that connect the flat
surfaces.
    Service space means a space outside the cargo area that is used for
a galley, pantry containing cooking appliances, locker or store room,
workshop except those in machinery spaces, and similar spaces and trunks
to those spaces.
    Shut-off valve is a valve that closes a pipeline and provides
nominal metal to metal contact between the valve operating parts,
including the disc and gate, and the valve body.
    Specific gravity (p) means the ratio of the density of the cargo at
the design temperature to the density of water at 4 [deg]C (39 [deg]F).
    Tank cover is the structure protecting those parts of the cargo
containment system that protrude through the weather deck and providing
continuity to the deck structure.
    Tank dome means the uppermost portion of the cargo tank. For below
deck cargo containment systems, it means the uppermost portion of the
cargo tank that protrudes through the

[[Page 275]]

weather deck or through the tank cover.
    Toxic cargoes includes the following liquefied gases from Table 4
(follows Sec. 154.1872):

Acetaldehyde
Ammonia, anhydrous
Dimethylamine
Ethylamine
Ethyl chloride
Ethylene oxide
Methyl bromide
Methyl chloride
Sulfur dioxide
Vinyl chloride

    Vapor pressure means the absolute equilibrium pressure of the
saturated vapor above the liquid, expressed in kPa (psia), at a specific
temperature.
    Void space means an enclosed space in the cargo area outside of the
cargo containment system, except a hold space, ballast space, fuel oil
tank, cargo pump or compressor room, or any space used by personnel.
    1974 Safety Convention stands for the International Convention on
Safety of Life at Sea, 1974, done at London, November 1, 1974.



Sec. 154.9  Issuance of documents.

    The Coast Guard issues an endorsed Certificate of Inspection to a
U.S. flag vessel or an endorsed Certificate of Compliance to a foreign
flag vessel that meets this part.



Sec. 154.12  Existing gas vessel: Endorsements and requirements.

    (a) Except an existing gas vessel under paragraph (b), (c), or (d)
of this section, an existing gas vessel must meet subpart C of this part
if the owner desires a document endorsed for the carriage of a cargo
listed in Table 4 (follows Sec. 154.1872).
    (b) If an existing gas vessel is issued a document by the Coast
Guard before November 1, 1987 that is endorsed for the carriage of a
cargo listed in Table 4 (follows Sec. 154.1872), and the owner desires
the same endorsement on a reissued document, the vessel must--
    (1) Continue to meet the same design and construction standards
under which the Coast Guard issued the original document; and
    (2) Meet paragraph (e) of this section.
    (c) If an existing gas vessel is issued a document by the Coast
Guard before November 1, 1987 that is endorsed for the carriage of a
cargo listed in Table 4 (follows Sec. 154.1872), and the owner desires
an endorsement for a different cargo listed in that table, the vessel
must--
    (1) Continue to meet the same design and construction standards
under which the Coast Guard issued the original document;
    (2) Meet paragraph (e) of this section;
    (3) Meet subpart D for the different cargo; and
    (4) Meet any additional requirements of this part that the
Commandant (CG-ENG) determines to be necessary for safety.
    (d) If an existing gas vessel does not meet paragraph (b) or (c) of
this section and the owner desires a document endorsed for the carriage
of a cargo listed in Table 4 (follows Sec. 154.1872), the vessel must--
    (1) Have a letter from the Coast Guard dated before November 1, 1987
stating that--
    (i) Review of the vessel's plans for the carriage of that cargo is
completed; or
    (ii) The vessel's IMO Certificate endorsed for the carriage of that
cargo is accepted;
    (2) Meet the plans that were reviewed and marked ``Examined'' or
``Approved'' by the Coast Guard, or meet the standards under which the
IMO Certificate was issued;
    (3) Meet paragraph (e) of this section; and
    (4) Meet any additional requirements of this part that the
Commandant (CG-ENG) determines to be necessary for safety.
    (e) If the owner of a vessel desires any document endorsement
described in paragraph (b), (c), or (d) of this section, the existing
gas vessel must meet the requirements in each of the following:
    (1) Section 154.310 (d) and (e).
    (2) Section 154.320 (b) and (c).
    (3) Section 154.330 (a) through (e).
    (4) Section 154.340(d).
    (5) Section 154.345 (a), (b)(1) through (b)(5), (b)(7) and (c).
    (6) Section 154.476(a).
    (7) Section 154.519(a)(2).

[[Page 276]]

    (8) Section 154.534.
    (9) Section 154.538.
    (10) Section 154.540 (c) and (d).
    (11) Section 154.556.
    (12) Section 154.558.
    (13) Section 154.560.
    (14) Section 154.562.
    (15) Section 154.703.
    (16) Section 154.705.
    (17) Section 154.706.
    (18) Section 154.707.
    (19) Section 154.708.
    (20) Section 154.709.
    (21) Section 154.904.
    (22) Section 154.906.
    (23) Section 154.908(a), unless the space is separated from the
accommodation, service, or control space by a steel door that--
    (i) Is watertight when tested with a firehose at not less than 207
kPa gauge (30 psig);
    (ii) Has a means to self-close and does not have latches or other
devices designed to hold it open; and
    (iii) Has an audible and visual alarm on both sides of the door
which is actuated when the door is open.
    (24) Section 154.910.
    (25) Section 154.912.
    (26) Sections 154.1110 through 154.1130, except Sec. Sec.
154.1115(b), 154.1120(b), and 154.1125 (c) and (f).
    (27) Section 154.1145, except an existing gas vessel with a cargo
carrying capacity of less than 2500 m \3\ (88,200 ft \3\) may have only
one self-contained dry chemical storage unit if that unit--
    (i) is installed before November 1, 1987; and
    (ii) Has the capacity to meet Sec. 154.1145 (d) and (e), and Sec.
154.1170(e).
    (28) Section 154.1150 (a) and (b).
    (29) Section 154.1155.
    (30) Section 154.1160.
    (31) Section 154.1165 (a), (b), (d), and (f).
    (32) Section 154.1170 (b) through (f).
    (33) Section 154.1200 (a), (b)(1), and (b)(2).
    (34) Section 154.1205(f).
    (35) Section 154.1325.
    (36) Section 154.1335(e).
    (37) Section 154.1350 (e), (f), (i), (o), and (u).



Sec. 154.15  U.S. flag vessel: Endorsement application.

    (a) A person who desires the endorsement required under Sec.
154.1801 for a U.S. flag vessel must submit an application for an
endorsement of the vessel's Subchapter D Certificate of Inspection under
the procedures in Sec. 91.55-15 of this chapter.
    (b) The person requesting an endorsement under paragraph (a) of this
section must submit to the Coast Guard, if requested--
    (1) Calculations for hull design required by Sec. 172.175 of this
chapter;
    (2) The plans and information listed in Sec. Sec. 54.01-18, 56.01-
10, 91.55-5 (a), (b), (d), (g), and (h), and 110.25-1 of this chapter;
    (3) Plans for the dry chemical supply and distribution systems,
including the controls; and
    (4) Any other vessel information, including, but not limited to
plans, design calculations, test results, certificates, and
manufacturer's data, needed to determine whether or not the vessel meets
the standards of this part.



Sec. 154.17  U.S. flag vessel: Certificate of Inspection endorsement.

    The Certificate of Inspection for a U.S. flag vessel allowed to
carry a liquefied gas listed in Table 4 has the following endorsement
for each cargo, with the corresponding carriage requirement data
inserted:

    Inspected and approved for the carriage of ------ at a maximum
allowable relief valve setting of ------ kPa gauge (------ psig) with an
F factor of ------, a maximum external pressure of ------ kPa gauge (--
---- psig), a minimum service temperature of ------ [deg]C (------
[deg]F), and a maximum specific gravity of ------. Hull type ------.



Sec. 154.19  U.S. flag vessel: IMO certificate issuance.

    (a) Either a classification society authorized under 46 CFR part 8,
or the Coast Guard Officer in Charge, Marine Inspection, issues an IMO
Certificate to a U.S. flag vessel when requested by the owner or
representative, if--
    (1) The vessel meets the requirements of this part; and
    (2) It is a new gas vessel, it meets the IMO Resolution A.328(IX),
``Code for the Construction and Equipment of Ships Carrying Liquefied
Gases in Bulk, 1975''; or
    (3) It is an existing gas vessel, it meets the IMO ``Code for
Existing Ships Carrying Liquefied Gases in Bulk, 1975''.

[[Page 277]]

    (b) The IMO Certificate expires on the same date that the vessel's
Certificate of Inspection expires.

[CGD 77-069, 52 FR 31626, Aug. 21, 1987, as amended by CGD 95-010, 62 FR
67537, Dec. 24, 1997]



Sec. 154.22  Foreign flag vessel: Certificate of Compliance endorsement
application.

    (a) A person who desires an endorsed Certificate of Compliance to
meet Sec. 154.1802(a) of this part for a foreign flag vessel, whose
flag administration issues IMO Certificates, must submit to the
Commanding Officer (MSC), Attn: Marine Safety Center, U.S. Coast Guard
Stop 7410, 4200 Wilson Boulevard Suite 400, Arlington, VA 20598-7410, in
a written or electronic format, an application that includes the
following:
    (1) The vessel's valid IMO Certificate.
    (2) A description of the vessel.
    (3) Specifications for the cargo containment system.
    (4) A general arrangement plan of the vessel.
    (5) A midship section plan of the vessel.
    (6) Schematic plans of the liquid and vapor cargo piping.
    (7) A firefighting and safety plan.
    (8) If the applicant is requesting an endorsement for the carriage
of ethylene oxide, a classification society certification that the
vessel meets Sec. 154.1725(a) (4), (5), and (7).
    (9) If the vessel is a new gas vessel, or an existing vessel that
does not meet Sec. 154.12 (b), (c), or (d)--
    (i) A certification from a classification society that the vessel--
    (A) Has enhanced grades of steel meeting Sec. 154.170 (b)(1) and
(b)(2) for crack arresting purposes in the deck stringer, sheer strake,
and bilge strake; and
    (B) Meets Sec. 154.701, or if the vessel carries methane, meets
Sec. 154.703, by having the capability of cargo tank pressure and
temperature control without venting; and
    (ii) The vessel's valid SOLAS Cargo Ship Safety Construction
Certificate and Cargo Ship Safety Equipment Certificate.
    (10) Any additional plans, certificates, and information needed by
the Commanding Officer, Marine Safety Center to determine whether or not
the vessel meets this part.
    (b) A person who desires an endorsed Certificate of Compliance to
meet Sec. 154.1802(b) for a foreign flag vessel, whose flag
administration does not issue IMO Certificates, must submit to the
Commanding Officer, Marine Safety Center the plans, calculations, and
information under Sec. 154.15(b).

[CGD 77-069, 52 FR 31626, Aug. 21, 1987, as amended by CGD 88-070, 53 FR
34535, Sept. 7, 1988; CGD 89-025, 54 FR 19571, May 8, 1989; CGD 95-072,
60 FR 50466, Sept. 29, 1995; 60 FR 54106, Oct. 19, 1995; USCG-2005-
23172, 70 FR 75734, Dec. 21, 2005; USCG-2007-29018, 72 FR 53967, Sept.
21, 2007; USCG-2013-0671, 78 FR 60155, Sept. 30, 2013]



Sec. 154.24  Foreign flag vessel: IMO Certificate.

    (a) An IMO Certificate issued under the IMO Resolution
A.328(IX),''Code for the Construction and Equipment of Ships Carrying
Liquefied Gases in Bulk, 1975'' is usually sufficient evidence of
compliance with this part for the Coast Guard to endorse a foreign flag
vessel's Certificate of Compliance with the name of each cargo in Table
4 (follows Sec. 154.1872) that is listed on the IMO Certificate, if the
information listed in item 3 of the IMO Certificate shows that--
    (1) The design ambient temperatures meet Sec. 154.174 and Sec.
154.176;
    (2) The cargo tank design stress factors and resulting MARVS of
independent tanks type B or C meet Sec. 154.447 or Sec. 154.450; and
    (3) The cargo tank MARVS of a type IIPG ship meets Sec. 172.175(c)
of this chapter.
    (b) If a foreign flag existing gas vessel meets Sec. 154.12 (b),
(c), or (d), the vessel's IMO Certificate issued under the IMO ``Code
for Existing Ships Carrying Liquefied Gases in Bulk, 1975'' is usually
sufficient evidence of compliance with the requirements of Sec.
154.12(e) for the Coast Guard to endorse the Certificate of Compliance
with the name of each cargo in Table 4 (follows Sec. 154.1872) that is
listed on the IMO Certificate; however if a foreign flag existing gas
vessel does not meet Sec. 154.12 (b), (c), or (d), an IMO Certificate
issued under the IMO ``Code for Existing Ships Carrying Liquefied Gases
in Bulk, 1975'' is not acceptable evidence of compliance with

[[Page 278]]

the requirements of this part for the endorsement of a Certificate of
Compliance.



Sec. 154.30  [Reserved]



Sec. 154.32  Equivalents.

    (a) A vessel that fails to meet the standards in this part for an
endorsement on a Certificate of Inspection or a Certificate of
Compliance may meet an alternate standard if the Commandant (CG-ENG)
finds that the alternate standard provides an equivalent or greater
level of protection for the purpose of safety.
    (b) The Commandant (CG-ENG) considers issuance of a finding of
equivalence to the standard required by this part if the person
requesting the finding submits a written application to the Commandant
(CG-ENG) that includes--
    (1) A detailed explanation of the vessel's characteristics that do
not meet the requirements in this part; and
    (2) An explanation of how each substituted standard would enable the
vessel to meet a level of safety that would be equivalent to or greater
than the standard in this part.
    (c) Operational methods or procedures may not be substituted for a
particular fitting, material, appliance, apparatus, item, or type of
equipment required in this part.



Sec. 154.34  Special approval: Requests.

    Each request for special approval must be in writing and submitted
to the Commandant (CG-ENG), Attn: Office of Design and Engineering
Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King Jr. Avenue
SE., Washington, DC 20593-7509.

[CGD 77-069, 52 FR 31626, Aug. 21, 1987, as amended by USCG-2013-0671,
78 FR 60155, Sept. 30, 2013]



Sec. 154.36  Correspondence and vessel information: Submission.

    Correspondence to the Coast Guard and all vessel information
submitted to the Coast Guard must be in English, except--
    (a) IMO Certificates may be in French; and
    (b) SOLAS Certificates may be in the official language of the flag
administration.



Sec. 154.40  Right of appeal.

    Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



                     Subpart B_Inspections and Tests

            Examination Requirements for Foreign Flag Vessels



Sec. 154.150  Examination required for a Certificate of Compliance.

    Before a vessel receives an initial or reissued Certificate of
Compliance endorsed with the name of a cargo from Table 4 of this part,
the vessel must call at a United States port for an examination, during
which the Officer in Charge, Marine Inspection, determines whether or
not the vessel meets the requirements of this chapter.

[CGD 81-052, 50 FR 8734, Mar. 5, 1985]



Sec. 154.151  Procedures for having the Coast Guard examine a vessel
for a Certificate of Compliance.

    To have the Coast Guard examine the vessel for a Certificate of
Compliance, as required in Sec. 154.150, the owner of a foreign flag
vessel must proceed as follows:
    (a) After submitting an application under Sec. 154.22, await
notification by the Commanding Officer, Marine Safety Center that review
of the vessel's plans or IMO Certificate and supporting documents is
complete.
    (b) Except when paragraph (c) of this section applies,
    (1) After receiving notification from Commanding Officer, Marine
Safety Center that review is complete and the application is acceptable,
dispatch the vessel to a United States port;
    (2) Notify the Officer in Charge, Marine Inspection, for the port
where the vessel is to be inspected at least seven days before the
vessel arrives and arrange the exact time and other details of the
examination. This notification is

[[Page 279]]

in addition to any other pre-arrival notice to the Coast Guard required
by other regulations and must include:
    (i) The name of the vessel's first U.S. port of call;
    (ii) The date the vessel is scheduled to arrive;
    (iii) The name and telephone number of the owner's local agent; and
    (iv) The names of all cargoes listed in Table 4 of this part that
are on board the vessel;
    (3) Make sure that the following items are available on board the
vessel for the use of the Marine Inspector before beginning the
examination required by Sec. 154.150:
    (i) A general arrangement (including the location of firefighting,
safety, and lifesaving gear); and
    (ii) The cargo manual required by Sec. 154.1810.
    (c) If the vessel was accepted for U.S. service on the basis of
Coast Guard plan review under Sec. 154.22(b), the vessel owner must
notify Commanding Officer, Marine Safety Center 14 days prior to the
vessel's arrival at a U.S. port. This notification must include:
    (1) The name of the vessel's first U.S. port of call;
    (2) The date the vessel is scheduled to arrive;
    (3) The name and telephone number of the owner's local agent; and
    (4) The names of all cargoes listed in Table 4 of this part that are
on board the vessel.

[CGD 81-052, 50 FR 8734, Mar. 5, 1985; 50 FR 15895, Apr. 23, 1985; CGD
77-069, 52 FR 31630, Aug. 21, 1987; CGD 95-072, 60 FR 50466, Sept. 29,
1995; 60 FR 54106, Oct. 19, 1995; USCG-2013-0671, 78 FR 60155, Sept. 30,
2013]



              Subpart C_Design, Construction and Equipment

                             Hull Structure



Sec. 154.170  Outer hull steel plating.

    (a) Except as required in paragraph (b) of this section, the outer
hull steel plating, including the shell and deck plating must meet the
material standards of the American Bureau of Shipping published in
``Rules for Building and Classing Steel Vessels'' 1981.
    (b) Along the length of the cargo area, grades of steel must be as
follows:
    (1) The deck stringer and sheer strake must be at least Grade E
steel or a grade of steel that has equivalent chemical properties,
mechanical properties, and heat treatment, and that is specially
approved by the Commandant (CG-ENG).
    (2) The strake at the turn of the bilge must be Grade D, Grade E, or
a grade of steel that has equivalent chemical properties, mechanical
properties, and heat treatment, and that is specially approved by the
Commandant (CG-ENG).
    (3) The outer hull steel of vessels must meet the standards in Sec.
154.172 if the hull steel temperature is calculated to be below -5
[deg]C (23 [deg]F) assuming:
    (i) For any waters in the world, the ambient cold conditions of
still air at 5 [deg]C (41 [deg]F) and still sea water at 0 [deg]C (32
[deg]F);
    (ii) For cargo containment systems with secondary barriers, the
temperature of the secondary barrier is the design temperature; and
    (iii) For cargo containment systems without secondary barriers, the
temperature of the cargo tank is the design temperature.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 77-069, 52 FR 31630, Aug. 21, 1987]



Sec. 154.172  Contiguous steel hull structure.

    (a) Except as allowed in paragraphs (b) and (c) of this section,
plates, forgings, forged and rolled fittings, and rolled and forged bars
and shapes used in the construction of the contiguous steel hull
structure must meet the thickness and steel grade in Table 1 for the
temperatures under Sec. Sec. 154.174(b) and 154.176(b).
    (b) for a minimum temperature, determined under Sec. Sec.
154,174(b) and 154.176(b), below -25 [deg]C (-13 [deg]F), the contiguous
steel hull structure must meet Sec. 54.25-10 for that minimum
temperature.
    (c) If a steel grade that is not listed in Table 1 has the
equivalent chemical properties, mechanical properties, and heat
treatment of a steel grade that is listed, the steel grade not listed
may be specially approved by the Commandant

[[Page 280]]

(CG-ENG), for use in the contiguous hull structure.

 Table 1--Minimum Temperature, Thickness, and Steel Grades in Contiguous
                             Hull Structures
------------------------------------------------------------------------
       Minimum temperature          Steel thickness     Steel \1\ grade
------------------------------------------------------------------------
0 [deg]C (32 [deg]F)............  All...............  Standards of the
                                                       American Bureau
                                                       of Shipping
                                                       published in
                                                       ``Rules for
                                                       Building and
                                                       Classing Steel
                                                       Vessels'', 1981
-10 [deg]C (14 [deg]F)..........  T<=112.5 mm (\1/2\  B
                                   in.).
                                  12.525.5 mm  E
                                   (1 in.).
-25 [deg]C (-13 [deg]F).........  t<=112.5 mm (\1/2\  D
                                   in.).
                                  12.5 mm  E
                                   (\1/2\ in.).
------------------------------------------------------------------------
\1\ Steel grade of the American Bureau of Shipping published in ``Rules
  for Building and Classing Steel Vessels'', 1981.


[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 77-069, 52 FR 31630, Aug. 21, 1987]



Sec. 154.174  Transverse contiguous hull structure.

    (a) The transverse contiguous hull structure of a vessel having
cargo containment systems without secondary barriers must meet the
standards of the American Bureau of Shipping published in ``Rules for
Building and Classing Steel Vessels'', 1981.
    (b) The transverse contiguous hull structure of a vessel having
cargo containment systems with secondary barriers must be designed for a
temperature that is:
    (1) Colder than the calculated temperature of this hull structure
when:
    (i) The temperature of the secondary barrier is the design
temperature, and
    (ii) The ambient cold condition under Sec. 154.176(b)(1)(ii) and
(iii) are assumed; or
    (2) Maintained by the heating system under Sec. 154.178.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.176  Longitudinal contiguous hull structure.

    (a) The longitudinal contiguous hull structure of a vessel having
cargo containment systems without secondary barriers must meet the
standards of the American Bureau of Shipping published in ``Rules for
Building and Classing Steel Vessels'', 1981.
    (b) The longitudinal contiguous hull structure of a vessel having
cargo containment systems with secondary barriers must be designed for a
temperature that is:
    (1) Colder than the calculated temperature of this hull structure
when:
    (i) The temperature of the secondary barrier is the design
temperature; and
    (ii) For any waters in the world except Alaskan waters, the ambient
cold condition of:
    (A) Five knots air at -18 [deg]C (0 [deg]F); and
    (B) Still sea water at 0 [deg]C (32 [deg]F); or
    (iii) For Alaskan waters the ambient cold condition of:
    (A) Five knots air at -29 [deg]C (-20 [deg]F); and
    (B) Still sea water at -2 [deg]C (28 [deg]F); or
    (2) Maintained by the heating system under Sec. 154.178, if,
without heat, the contiguous hull structure is designed for a
temperature that is colder than the calculated temperature of the hull
structure assuming the:
    (i) Temperature of the secondary barrier is the design temperature;
and
    (ii) Ambient cold conditions of still air at 5 [deg]C (41 [deg]F)
and still sea water at 0 [deg]C (32 [deg]F).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.178  Contiguous hull structure: Heating system.

    The heating system for transverse and longitudinal contiguous hull
structure must:
    (a) Be shown by a heat load calculation to have the heating capacity
to meet Sec. 154.174(b)(2) or Sec. 154.176(b)(2);
    (b) Have stand-by heating to provide 100% of the required heat load
and distribution determined under paragraph (a); and
    (c) Meet Parts 52, 53, and 54 of this chapter.



Sec. 154.180  Contiguous hull structure: Welding procedure.

    Welding procedure tests for contiguous hull structure designed for a
temperature colder than -18 [deg]C (0 [deg]F) must

[[Page 281]]

meet Sec. 54.05-15 and subpart 57.03 of this chapter.



Sec. 154.182  Contiguous hull structure: Production weld test.

    If a portion of the contiguous hull structure is designed for a
temperature colder than -34 [deg]C (-30 [deg]F) and is not part of the
secondary barrier, each 100m (328 ft.) of full penetration butt welded
joints in that portion of the contiguous hull structure must pass the
following production weld tests in the position that the joint is
welded:
    (a) Bend tests under Sec. 57.06-4 of this chapter.
    (b) A Charpy V-notch toughness test under Sec. 57.06-5 of this
chapter on one set of 3 specimens alternating the notch location on
successive tests between the center of the weld and the most critical
location in the heat affected zone. \2\
---------------------------------------------------------------------------

    \2\ The most critical location in the heat affected zone of the weld
is based on procedure qualification results, except austenitic stainless
steel need have notches only in the center of the weld.
---------------------------------------------------------------------------

    (c) If the contiguous hull structure does not pass the test under
paragraph (b) of this section, the retest procedures under Sec. 54.05-
5(c) must be met.



Sec. 154.188  Membrane tank: Inner hull steel.

    For a vessel with membrane tanks, the inner hull plating thickness
must meet the deep tank requirements of the American Bureau of Shipping
published in ``Rules for Building and Classing Steel Vessels'', 1981.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.195  Aluminum cargo tank: Steel enclosure.

    (a) An aluminum cargo tank and its dome must be enclosed by the
vessel's hull structure or a separate steel cover.
    (b) The steel cover for the aluminum cargo tank must meet the steel
structural standards of the American Bureau of Shipping published in
``Rules for Building and Classing Steel Vessels'', 1981.
    (c) The steel cover for the aluminum tank dome must be:
    (1) At least 3.2 mm (\1/8\ in.) thick;
    (2) Separated from the tank dome, except at the support points; and
    (3) Thermally isolated from the dome.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]

            Ship Survival Capability and Cargo Tank Location



Sec. 154.200  Stability requirements: General.

    Each vessel must meet the applicable requirements in subchapter S of
this chapter.

[CGD 79-023, 48 FR 51009, Nov. 4, 1983]



Sec. 154.235  Cargo tank location.

    (a) For type IG hulls, cargo tanks must be located inboard of:
    (1) The transverse extent of damage for collision penetration
specified in Table 172.180 of this chapter;
    (2) The vertical extent of damage for grounding penetration
specified in Table 172.180 of this chapter; and
    (3) 30 inches (760 mm) from the shell plating.
    (b) For type IIG, IIPG, and IIIG hulls, cargo tanks must be located
inboard of:
    (1) The vertical extent of damage for grounding penetration
specified in Table 172.180 of this chapter; and
    (2) 30 inches (760 mm) from the shell plating.
    (c) In vessels having membrane and semi-membrane tanks, the vertical
and transverse extents of damage must be measured to the inner hull.
    (d) For type IIG, IIPG, and IIIG hulls, cargo tank suction wells may
penetrate into the area of bottom damage specified as the vertical
extent of damage for grounding penetration in Table 172.180 of this
chapter if the penetration is the lesser of 25% of the double bottom
height or 13.8 in. (350 mm).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 79-023, 48 FR
51010, Nov. 4, 1983]

[[Page 282]]

                            Ship Arrangements



Sec. 154.300  Segregation of hold spaces from other spaces.

    Hold spaces must be segregated from machinery and boiler spaces,
accommodation, service and control spaces, chain lockers, potable,
domestic and feed water tanks, store rooms and spaces immediately below
or outboard of hold spaces by a:
    (a) Cofferdam, fuel oil tank, or single gastight A-60 Class Division
of all welded construction in a cargo containment system not required by
this part to have a secondary barrier;
    (b) Cofferdam or fuel oil tank in a cargo containment system
required by this part to have a secondary barrier; or
    (c) If there are no sources of ignition or fire hazards in the
adjoining space, single gastight A-O Class Division of all welded
construction.



Sec. 154.305  Segregation of hold spaces from the sea.

    In vessels having cargo containment systems required by this part to
have a secondary barrier, hold spaces must be segregated from the sea
by:
    (a) A double bottom if the cargo tanks meet this part for design
temperatures colder than -10 [deg]C (14 [deg]F); and
    (b) Wing tanks if the cargo tanks meet this part for design
temperatures colder than -55 [deg]C (-67 [deg]F).



Sec. 154.310  Cargo piping systems.

    Cargo liquid or vapor piping must:
    (a) Be separated from other piping systems, except where an
interconnection to inert gas or purge piping is required by Sec.
154.901(a);
    (b) Not enter or pass through any accommodation, service, or control
space;
    (c) Except as allowed under Sec. 154.703, not enter or pass through
a machinery space other than a cargo pump or compressor room;
    (d) Be in the cargo area except:
    (1) As allowed under Sec. 154.703;
    (2) Bow and stern loading piping; and
    (3) Emergency jettisoning piping.
    (e) Be above the weather deck except:
    (1) As allowed under Sec. 154.703;
    (2) Pipes in a trunk traversing void spaces above a cargo
containment system; and
    (3) Pipes for draining, venting, or purging interbarrier and hold
spaces;
    (f) Connect into the cargo containment system above the weather deck
except:
    (1) Pipes in a trunk traversing void spaces above a cargo
containment system; and
    (2) Pipes for draining, venting, or purging interbarrier and hold
spaces.
    (g) Be inboard of the transverse cargo tank location required by
Sec. 154.235, except for athwartship shore connection manifolds not
subject to internal pressure at sea.



Sec. 154.315  Cargo pump and cargo compressor rooms.

    (a) Cargo pump rooms and cargo compressor rooms must be above the
weather deck and must be within the cargo area.
    (b) Where pumps and compressors are driven by a prime mover in an
adjacent gas safe space:
    (1) The bulkhead or deck must be gastight; and
    (2) The shafting passing through the bulkhead or deck must be sealed
by a fixed oil reservoir gland seal, a pressure grease seal, or another
type of positive pressure seal specially approved by the Commandant (CG-
ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.320  Cargo control stations.

    (a) Cargo control stations must be above the weather deck.
    (b) If a cargo control station is in accommodation, service, or
control spaces or has access to such a space, the station must:
    (1) Be a gas safe space;
    (2) Have an access to the space that meets Sec. 154.330; and
    (3) Have indirect reading instrumentation, except for gas detectors.
    (c) Cargo control stations, including a room or area, must contain
all alarms, indicators, and remote controls associated with each cargo
tank that the station controls.

[[Page 283]]



Sec. 154.325  Accommodation, service, and control spaces.

    (a) Accommodation, service, and control spaces must be outside the
cargo area.
    (b) If a hold space having a cargo containment system, required by
this part to have a secondary barrier, is separated from any
accommodation, service, or control space by a cruciform joint, there
must be a cofferdam providing at least 760 mm (30 inches) by 760 mm (30
inches) clearance on one side of the cruciform joint.



Sec. 154.330  Openings to accommodation, service, or control spaces.

    (a) Entrances, forced or natural ventilation intakes and exhausts,
and other openings to accommodation, service, or control spaces, except
as allowed in paragraph (c) of this section, must be:
    (1) At least L/25 or 3.05m (10 ft) from the athwartship bulkhead
facing the cargo area, whichever is farther, except that the distance
need not exceed 5m (16.4 ft); and
    (2) On a house athwartship bulkhead not facing the cargo area or on
the outboard side of the house.
    (b) Each port light, located on the athwartship bulkhead of a house
facing the cargo area or the house sides within the distance specified
in paragraph (a)(1) of this section, must be a fixed type.
    (c) Wheelhouse doors and windows that are not fixed may be within
the distance specified in paragraph (a)(1) of this section from the
athwartship bulkhead of a house facing the cargo area, if they have
gaskets and pass a tightness test with a fire hose at not less than 207
kPa gauge (30 psig).
    (d) Port lights in the hull plating below the uppermost continuous
deck and in the first tier of the superstructure must be a fixed type.
    (e) Air intakes and openings into accommodation, service, and
control spaces must have metal closures that pass a tightness test with
a fire hose at not less than 207 kPa gauge (30 psig).
    (f) On liquefied toxic gas vessels, the closures required in
paragraph (e) of this section must be capable of being closed from
inside the space.



Sec. 154.340  Access to tanks and spaces in the cargo area.

    (a) Each cargo tank must have a manhole from the weather deck, the
clear opening of which is at least 600 mm by 600 mm (23.6 in. by 23.6
in.).
    (b) Each access into and through a void space or other gas-dangerous
space in the cargo area, except spaces described in paragraph (e) of the
definition for ``gas-dangerous space'' in Sec. 154.7, must--
    (1) Have a clear opening of at least 600 mm by 600 mm (23.6 in. by
23.6 in.) through horizontal openings, hatches, or manholes;
    (2) Have a clear opening of at least 600 mm by 800 mm (23.6 in. by
31.5 in.) through bulkheads, frames or other vertical structural
members; and
    (3) Have a fixed ladder if the lower edge of a vertical opening is
more than 600 mm (23.6 in.) above the deck or bottom plating.
    (c) Each access trunk in the cargo area must be at least 760 mm (30
in.) in diameter.
    (d) The lower edge of each access from the weather deck to gas-safe
spaces in the cargo area must be at least 2.4 m (7.9 ft.) above the
weather deck or the access must be through an air lock that meets Sec.
154.345.
    (e) The inner hull in the cargo area must be accessible for
inspection from at least one side without the removal of any fixed
structure or fitting.
    (f) The hold space insulation in the cargo area must be accessible
for inspection from at least one side from within the hold space or
there must be a means, that is specially approved by the Commandant, of
determining from outside the hold space whether or not the hold space
insulation meets this part.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.345  Air locks.

    (a) An air lock may be used for access from a gas-dangerous zone on
the weather deck to a gas-safe space.
    (b) Each air lock must:
    (1) Consist of two steel doors, at least 1.5 m (4.9 ft.) but not
more than 2.5 m (8.2 ft.) apart, each gasketed and tight

[[Page 284]]

when tested with a fire hose at not less 207 kPa gauge (30 psig);
    (2) Have self-closing doors with no latches or other devices for
holding them open;
    (3) Have an audible and visual alarm on both sides which are
actuated when both door securing devices are in other than the fully
closed position at the same time;
    (4) Have mechanical ventilation in the space between the doors from
a gas-safe area;
    (5) Have a pressure greater than that of the gas-dangerous area on
the weather deck;
    (6) Have the rate of air change in the space between the doors of at
least 8 changes per hour; and
    (7) Have the space between the doors monitored for cargo vapor leaks
under Sec. 154.1350.
    (c) In addition to the requirements of paragraphs (a) and (b) of
this section, no gas-safe space on a liquefied flammable gas carrier may
have an air lock unless the space:
    (1) Is mechanically ventilated to make the pressure in the space
greater than that in the air lock; and
    (2) Has a means of automatically de-energizing all electrical
equipment that is not explosion-proof in the space when the pressure in
the space falls to or below the pressure in the air lock.



Sec. 154.350  Bilge and ballast systems in the cargo area.

    (a) Hold, interbarrier, and insulation spaces must have a means of
sounding the space or other means of detecting liquid leakage specially
approved by the Commandant (CG-ENG).
    (b) Each hold and insulation space must have a bilge drainage
system.
    (c) Interbarrier spaces must have an eductor or pump for removing
liquid cargo and returning it to the cargo tanks or to an emergency
jettisoning system meeting Sec. 154.356.
    (d) Spaces in the cargo containment portion of the vessel, except
ballast spaces and gas-safe spaces, must not connect to pumps in the
main machinery space.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.355  Bow and stern loading piping.

    (a) Bow and stern loading piping must:
    (1) Meet Sec. 154.310;
    (2) Be installed in an area away from the accommodation, service, or
control space on type IG hulls;
    (3) Be clearly marked;
    (4) Be segregated from the cargo piping by a removable spool piece
in the cargo area or by at least two shut-off valves in the cargo area
that have means of locking to meet Sec. 154.1870(a);
    (5) Have a means for checking for cargo vapor between the two valves
under paragraph (a)(4) of this section;
    (6) Have fixed inert gas purging lines; and
    (7) Have fixed vent lines for purging with inert gas to meet Sec.
154.1870(b).
    (b) Entrances, forced or natural ventilation intakes, exhausts, and
other openings to accommodation, service, or control spaces that face
the bow or stern loading area must meet Sec. 154.330.



Sec. 154.356  Cargo emergency jettisoning piping.

    Emergency jettisoning piping must:
    (a) Meet Sec. 154.355(a);
    (b) Be designed to allow cargo discharge without the outer hull
steel temperature falling below the minimum temperatures under
Sec. Sec. 154.170 and 154.172; and
    (c) Be specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                        Cargo Containment Systems



Sec. 154.401  Definitions.

    As used in Sec. Sec. 154.440 and 154.447:
    ``[sigma]Y'' means the minimum yield strength of the tank
material, including weld metal, at room temperature.
    ``[sigma]B'' means minimum tensile strength of the tank
material, including weld metals, at room temperature.



Sec. 154.405  Design vapor pressure (Po) of a cargo tank.

    (a) The design vapor pressure (Po) of a cargo tank must
be equal to or greater than the MARVS.

[[Page 285]]

    (b) The Po of a cargo tank must be equal to or greater
than the vapor pressure of the cargo at 45 [deg]C (113 [deg]F) if:
    (1) The cargo tank has no temperature control for the cargo; and
    (2) The vapor pressure of the cargo results solely from ambient
temperature.
    (c) The Po of a cargo tank may be exceeded under harbor
conditions if specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.406  Design loads for cargo tanks and fixtures: General.

    (a) Calculations must show that a cargo tank and its fixtures are
designed for the following loads:
    (1) Internal pressure head.
    (2) External pressure load.
    (3) Dynamic loads resulting from the motion of the vessel.
    (4) Transient or stationary thermal loads if the design temperature
is colder than -55 [deg]C (-67 [deg]F) or causes thermal stresses in
cargo tank supports.
    (5) Sloshing loads, if the cargo tank is designed for partial loads.
    (6) Loads resulting from vessel's deflection.
    (7) Tank weight, cargo weight, and corresponding support reaction.
    (8) Insulation weight.
    (9) Loads of a pipe tower and any other attachments to the cargo
tank.
    (10) Vapor pressure loads in harbor conditions allowed under Sec.
154.405.
    (11) Gas pressurization if the cargo tank is designed for gas
pressurization as a means of cargo transfer.
    (b) A cargo tank must be designed for the most unfavorable static
heel angle within a 0[deg] to 30[deg] range without exceeding the
allowable stress of the material.
    (c) A hydrostatic or hydropneumatic test design load must be
specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 154.407  Cargo tank internal pressure head.

    (a) For the calculation required under Sec. 154.406(a)(1) and (b),
the internal pressure head (heq), must be determined from the
following formula:

heq=10 Po+(hgd)max

where:

hgd (the value of internal pressure, in meters of fresh
          water, resulting from the combined effects of gravity and
          dynamic accelerations of a full tank)=a[beta] Z[beta] Y;

where:

a[beta]=dimensionless acceleration relative to the acceleration of
          gravity resulting from gravitational and dynamic loads in the
          [beta] direction (see figure 1);
Z[beta]=largest liquid height (m) above the point where the pressure is
          to be determined in the [beta] direction (see figure 2);
Y=maximum specific weight of the cargo (t/m\3\) at the design
          temperature.

[[Page 286]]

[GRAPHIC] [TIFF OMITTED] TC02FE91.083


[[Page 287]]


[GRAPHIC] [TIFF OMITTED] TC02FE91.084

    (b) The (hgd) max is determined for the [beta]
direction, on the ellipse in Figure 1, which gives the maximum value for
hgd.
    (c) When the longitudinal acceleration is considered in addition to
the vertical transverse acceleration, an ellipsoid must be used in the
calculations instead of the ellipse contained in Figure 1.



Sec. 154.408  Cargo tank external pressure load.

    For the calculation required under Sec. 154.406 (a)(2) and (b), the
external pressure load must be the difference between the minimum
internal pressure (maximum vacuum), and the maximum external pressure to
which any portion of the cargo tank may be simultaneously subjected.



Sec. 154.409  Dynamic loads from vessel motion.

    (a) For the calculation required under Sec. 154.406 (a)(3) and (b),
the dynamic loads must be determined from the long term distribution of
vessel motions, including the effects of surge, sway, heave, roll,
pitch, and yaw on irregular seas that the vessel may experience during
10\8\ wave encounters. The speed used for this calculation may be
reduced from the ship service speed if specially approved by the
Commandant

[[Page 288]]

(CG-ENG) and if that reduced speed is used in the hull strength
calculation under Sec. 31.10-5(c) of this chapter.
    (b) If the loads determined under paragraphs (c), (d), or (e) of
this section result in a design stress that is lower than the allowable
stress of the material under Sec. Sec. 154.610, 154.615, or 154.620,
the allowable stress must be reduced to that stress determined in
paragraphs (c), (d), or (e).
    (c) If a tank is designed to avoid plastic deformation and buckling,
then acceleration components of the dynamic loads must be determined for
the largest loads the vessel may experience during an operating life
corresponding to the probability level of 10-8, by using one
of the following methods:
    (1) Method 1 is a detailed analysis of the vessel's acceleration
components.
    (2) Method 2 applies to vessels of 50 m (164 ft) or more in length
and is an analysis by the following formulae that corresponds to a
10-8 probability level in the North Atlantic:
    (i) Vertical acceleration under paragraph (f)(1) of this section:
    [GRAPHIC] [TIFF OMITTED] TC02FE91.085


[[Page 289]]


[GRAPHIC] [TIFF OMITTED] TC02FE91.086

    (d) If a cargo tank is designed to avoid fatigue, the dynamic loads
determined under paragraph (a) of this section must be used to develop
the dynamic spectrum.

[[Page 290]]

    (e) If a cargo tank is designed to avoid uncontrolled crack
propagation, the dynamic loads are:
    (1) Determined under paragraph (a) of this section; and
    (2) For a load distribution for a period of 15 days by the method in
Figure 3.
[GRAPHIC] [TIFF OMITTED] TC02FE91.087


[[Page 291]]


    (f) When determining the accelerations for dynamic loads under
paragraph (a) of this section, the accelerations acting in a cargo tank
must be estimated for the cargo tank's center of gravity and include the
following component accelerations:
    (1) Vertical accelerations, meaning the motion acceleration of heave
and pitch, and of any roll normal to the vessel base that has an effect
on the component acceleration.
    (2) Transverse acceleration, meaning the motion acceleration of
sway, yaw and roll, and gravity component of roll.
    (3) Longitudinal acceleration, meaning the motion acceleration of
surge and pitch and gravity component of pitch.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.410  Cargo tank sloshing loads.

    (a) For the calculation required under Sec. 154.406 (a)(5) and (b),
the determined sloshing loads resulting from the accelerations under
Sec. 154.409(f) must be specially approved by the Commandant (CG-ENG).
    (b) If the sloshing loads affect the cargo tank scantlings, an
analysis of the effects of the sloshing loads in addition to the
calculation under paragraph (a) of this section must be specially
approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.411  Cargo tank thermal loads.

    For the calculations required under Sec. 154.406(a)(4), the
following determined loads must be specially approved by the Commandant
(CG-ENG):
    (a) Transient thermal loads for the cooling down periods of cargo
tanks for design temperatures lower than -55 [deg]C (-67 [deg]F).
    (b) Stationary thermal loads for cargo tanks for design temperatures
lower than -55 [deg]C (-67 [deg]F) that cause high thermal stress.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.412  Cargo tank corrosion allowance.

    A cargo tank must be designed with a corrosion allowance if the
cargo tank:
    (a) is located in a space that does not have inert gas or dry air;
or
    (b) carries a cargo that corrodes the tank material.

    Note: Corrosion allowance for independent tank type C is contained
in Sec. 54.01-35 of this chapter.

                             Integral Tanks



Sec. 154.418  General.

    An integral tank must not be designed for a temperature colder than
-10 [deg]C (14 [deg]F), unless the tank is specially approved by the
Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.419  Design vapor pressure.

    The Po of an integral tank must not exceed 24.5 kPa gauge
(3.55 psig) unless special approval by the Commandant (CG-ENG) allows a
Po between 24.5 kPa gauge (3.55 psig) and 69 kPa gauge (10
psig).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.420  Tank design.

    (a) The structure of an integral tank must meet the deep tank
scantling standards of the American Bureau of Shipping published in
``Rules for Building and Classing Steel Vessels'', 1981.
    (b) The structure of an integral tank must be designed and shown by
calculation to withstand the internal pressure determined under Sec.
154.407.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.421  Allowable stress.

    The allowable stress for the integral tank structure must meet the
American Bureau of Shipping's allowable stress for the vessel's hull
published in

[[Page 292]]

``Rules for Building and Classing Steel Vessels'', 1981.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]

                             Membrane Tanks



Sec. 154.425  General.

    The design of the hull structure and the design of the membrane tank
system, that includes the membrane tank, secondary barrier, including
welds, the supporting insulation, and pressure control equipment, must
be specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.426  Design vapor pressure.

    The Po of a membrane tank must not exceed 24.5 kPa gauge
(3.55 psig) unless special approval by the Commandant (CG-ENG) allows a
Po between 24.5 kPa gauge (3.55 psig) and 69 kPa gauge (10
psig).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.427  Membrane tank system design.

    A membrane tank system must be designed for:
    (a) Any static and dynamic loads with respect to plastic deformation
and fatigue;
    (b) Combined strains from static, dynamic, and thermal loads;
    (c) Preventing collapse of the membrane from:
    (1) Over-pressure in the interbarrier space;
    (2) Vacuum in the cargo tank;
    (3) Sloshing in a partially filled cargo tank; and
    (4) Hull vibrations; and
    (d) The deflections of the vessel's hull.



Sec. 154.428  Allowable stress.

    The membrane tank and the supporting insulation must have allowable
stresses that are specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.429  Calculations.

    The tank design load calculations for a membrane tank must include
the following:
    (a) Plastic deformation and fatigue life resulting from static and
dynamic loads in the membrane and the supporting insulation.
    (b) The response of the membrane and its supporting insulation to
vessel motion and acceleration under the worst weather conditions.
Calculations from a similar vessel may be submitted to meet this
paragraph.
    (c) The combined strains from static, dynamic, and thermal loads.



Sec. 154.430  Material test.

    (a) The membrane and the membrane supporting insulation must be made
of materials that withstand the combined strains calculated under Sec.
154.429(c).
    (b) Analyzed data of a material test for the membrane and the
membrane supporting insulation must be submitted to the Commandant (CG-
ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.431  Model test.

    (a) The primary and secondary barrier of a membrane tank, including
the corners and joints, must withstand the combined strains from static,
dynamic, and thermal loads calculated under Sec. 154.429(c).
    (b) Analyzed data of a model test for the primary and secondary
barrier of the membrane tank must be submitted to the Commandant (CG-
ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.432  Expansion and contraction.

    The support system of a membrane tank must allow for thermal and
physical expansion and contraction of the tank.

[[Page 293]]

                           Semi-Membrane Tanks



Sec. 154.435  General.

    (a) The design of a semi-membrane tank, the supporting insulation
for the tank, and the supporting hull structure for the tank must be
specially approved by the Commandant (CG-ENG).
    (b) A semi-membrane tank must be designed to meet:
    (1) Sec. 154.425 through Sec. 154.432;
    (2) Sec. 154.437 through Sec. 154.440; or
    (3) Sec. 154.444 through Sec. 154.449.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.436  Design vapor pressure.

    The Po of a semi-membrane tank must not exceed 24.5 kPa
gauge (3.55 psig) unless special approval by the Commandant (CG-ENG)
allows a Po between 24.5 kPa gauge (3.55 psig) and 69 kPa
gauge (10 psig).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                         Independent Tank Type A



Sec. 154.437  General.

    An independent tank type A must meet Sec. 154.438 through Sec.
154.440.



Sec. 154.438  Design vapor pressure.

    (a) If the surface of an independent tank type A are mostly flat
surfaces, the Po must not exceed 69 kPa gauge (10 psig).
    (b) If the surfaces of an independent tank type A are formed by
bodies of revolution, the design calculation of the Po must
be specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]



Sec. 154.439  Tank design.

    An independent tank type A must meet the deep tank standard of the
American Bureau of Shipping published in ``Rules for Building and
Classing Steel Vessels'', 1981, and must:
    (a) Withstand the internal pressure determined under Sec. 154.407;
    (b) Withstand loads from tank supports calculated under Sec. Sec.
154.470 and 154.471; and
    (c) Have a corrosion allowance that meets Sec. 154.412.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.440  Allowable stress.

    (a) The allowable stresses for an independent tank type A must:
    (1) For tank web frames, stringers, or girders of carbon manganese
steel or aluminum alloys, meet [sigma]B/2.66 or
[sigma]Y/1.33, whichever is less; and
    (2) For other materials, be specially approved by the Commandant
(CG-ENG).
    (b) A greater allowable stress than required in paragraph (a)(1) of
this section may be specially approved by the Commandant (CG-ENG) if the
equivalent stress ([sigma]c) is calculated from the formula
in appendix A of this part.
    (c) Tank plating must meet the American Bureau of Shipping's deep
tank standards, for an internal pressure head that meets Sec.
154.439(a), published in ``Rules for Building and Classing Steel
Vessels'', 1981.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; CGD 77-069, 52 FR 31630, Aug. 21, 1987]

                         Independent Tank Type B



Sec. 154.444  General.

    An independent tank type B must be designed to meet Sec. Sec.
154.445 through 154.449.



Sec. 154.445  Design vapor pressure.

    If the surfaces of an independent tank type B are mostly flat
surfaces, the Po must not exceed 69 kPa gauge (10 psig).



Sec. 154.446  Tank design.

    An independent tank type B must meet the calculations under Sec.
154.448.



Sec. 154.447  Allowable stress.

    (a) An independent tank type B designed from bodies of revolution
must

[[Page 294]]

have allowable stresses \3\ determined by the following formulae:
---------------------------------------------------------------------------

    \3\ See Appendix B for stress analyses definitions.

---------------------------------------------------------------------------
[sigma]m<=f

[sigma]L<=1.5 f

[sigma]b<=1.5 F

[sigma]L + [sigma]b<=1.5 F

[sigma]m + [sigma]b<=1.5 F

where:

[sigma]m=equivalent primary general membrane stress \4\
---------------------------------------------------------------------------

    \4\ See Appendix A for equivalent stress.
---------------------------------------------------------------------------

[sigma]L=equivalent primary local membrane stress \4\
[sigma]b=equivalent primary bending stress \4\
f=the lesser of ([sigma]B/A) or ([sigma]Y/B)
F=the lesser of ([sigma]B/C) or ([sigma]Y/D)
A, B, C, and D=stress factors in Table 2.

                   Table 2--Values for Stress Factors
------------------------------------------------------------------------
                                      Nickel
                                    steel and
                                      carbon     Austenitic    Aluminum
                                    manganese      steel        alloy
                                      steel        values       values
                                      values
------------------------------------------------------------------------
Stress factors:
  A..............................          4.0          4.0          4.0
  B..............................          2.0          1.6          1.5
  C..............................          3.0          3.0          3.0
  D..............................          1.5          1.5          1.5
------------------------------------------------------------------------

    (b) An independent tank type B designed from plane surfaces must
have allowable stresses specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.448  Calculations.

    The following calculations for an independent tank type B must be
specially approved by the Commandant (CG-ENG):
    (a) Plastic deformation, fatigue life, buckling, and crack
propagation resulting from static and dynamic loads on the tank and its
support.
    (b) A three-dimensional analysis of the stress exerted by the hull
on the tank, its support, and its keys.
    (c) The response of the tank and its support to the vessel's motion
and acceleration in irregular waves or calculations from a similar
vessel.
    (d) A tank buckling analysis considering the maximum construction
tolerance.
    (e) A finite element analysis using the loads determined under Sec.
154.406.
    (f) A fracture mechanics analysis using the loads determined under
Sec. 154.406.
    (g) The cumulative effects of the fatigue load from the following
formula:
[GRAPHIC] [TIFF OMITTED] TC02FE91.088

where:

ni=the number of stress cycles at each stress level during
          the life of the vessel;
Ni=the number of cycles to failure for corresponding stress
          levels from the Wohler (S-N) curve;
Nj=the number of cycles to failure from the fatigue load by
          loading and unloading the tank; and
Cw=0.5 or less. A Cw of greater than 0.5 but not
          exceeding 1.0 may be specially approved by the Commandant (G-
          MTH).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.449  Model test.

    The following analyzed data of a model test of structural elements
for independent tank type B must be submitted to the Commandant (CG-ENG)
for special approval:
    (a) Stress concentration factors.
    (b) Fatigue life.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

          Independent Tank Type C and Process Pressure Vessels



Sec. 154.450  General.

    Independent tanks type C and process pressure vessels must be
designed to meet the requirements under Part 54 of this chapter, except
Sec. 54.01-40(b), and:
    (a) The calculation under Sec. 54.01-18 (b)(1) must also include
the design loads determined under Sec. 154.406;
    (b) The calculated tank plating thickness, including any corrosion
allowance, must be the minimum thickness without a negative plate
tolerance; and
    (c) The minimum tank plating thickness must not be less than:
    (1) 5mm (\3/16\ in.) for carbon-manganese steel and nickel steel;

[[Page 295]]

    (2) 3mm (\1/8\ in.) for austenitic steels; or
    (3) 7mm (\9/32\ in.) for aluminum alloys.



Sec. 154.451  Design vapor pressure.

    The Po (kPa) of an independent tank type C must be
calculated by the following formula:

Po = 196 + AC([rho]) \3/2\

where:

A = 1.813 ([sigma]m/[Delta][sigma]A)
          \2\;
[sigma]m=design primary membrane stress;
[Delta][sigma]A=(allowable dynamic membrane stress
          for double amplitude at probability level Q=10-8)
          53.9 MPa (7821 psi) for ferritic and martensitic steels and
          24.5 MPa (3555 psi) for 5083-0 aluminum;
C=a characteristic tank dimension that is the greatest of h, 0.75b, or
          0.45 l;

where:

h=the height of the tank or the dimension in the vessel's vertical
          direction, in meters;
b=the width of the tank or the dimension in the vessel's transverse
          direction; in meters; and
l=the length of the tank or the dimension in the vessel's longitudinal
          direction, in meters; and
[rho]=the specific gravity of the cargo.



Sec. 154.452  External pressure.

    The design external pressure, Pe, for an independent tank
type C must be calculated by the following formula:

Pe=P1+P2+P3+P4

where:

P1=the vacuum relief valve setting for tanks with a vacuum
          relief valve, or 24.5 kPa gauge (3.55 psig) for tanks without
          a vacuum relief valve.
P2=0, or the pressure relief valve setting for an enclosed
          space containing any portion of a pressure vessel.
P3=total compressive load in the tank shell from the weight
          of the tank, including corrosion allowance, weight of
          insulation, weight of dome, weight of pipe tower and piping,
          the effect of the partially filled tank, the effect of
          acceleration and hull deflection, and the local effect of
          external and internal pressure.
P4=0, or the external pressure from the head of water from
          any portion of the pressure vessel on exposed decks.



Sec. 154.453  Failure to meet independent tank type C standards.

    If the Commandant (CG-ENG) determines during plan review, that a
tank designed as an independent tank type C fails to meet the standards
under Sec. 154.450, Sec. 154.451, and 154.452 and cannot be redesigned
to meet those standards, the tank may be redesigned as an independent
tank type A or B.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]

                            Secondary Barrier



Sec. 154.459  General.

    (a) Each cargo tank must have a secondary barrier that meets Table 3
and except as allowed in Table 3, the hull must not be the secondary
barrier.
    (b) If the Commandant (CG-ENG) specially approves an integral tank
for a design temperature at atmospheric pressure lower than -10 [deg]C
(14 [deg]F), the integral tank must have a complete secondary barrier
that meets Sec. 154.460.
    (c) If the Commandant (CG-ENG) specially approves a semi-membrane
tank under the requirements of an independent tank type B, the semi-
membrane tank may have a partial secondary barrier specially approved by
the Commandant (CG-ENG).
    (d) If Table 3 allows the hull to be a secondary barrier, the
vessel's hull must:
    (1) Meet Sec. Sec. 154.605 through 154.630; and
    (2) Be designed for the stresses resulting from the design
temperature.

                                      Table 3--Secondary Barriers for Tanks
----------------------------------------------------------------------------------------------------------------
                                                    Cargo temperature (T) at atmospheric pressure
                                    ----------------------------------------------------------------------------
             Tank type                                       T<-10 [deg]C (14 [deg]F)=-10        thn-eq>=55 [deg]C (-67       T<-55 [deg]C (-67
                                       [deg]C (14 [deg]F)               [deg]F)                   [deg]F)
----------------------------------------------------------------------------------------------------------------
Integral...........................  No secondary barrier    Tank type not usually         Tank type not
                                      required.               allowed \1\.                  allowed.
Membrane...........................  ......do..............  Complete secondary barrier    Complete secondary
                                                              \1\.                          barrier.
Semi-membrane......................  ......do..............  ......do....................   Do.
Independent:
  Type A...........................  ......do..............  ......do....................   Do.
  Type B...........................  ......do..............  Partial secondary barrier     Partial secondary
                                                              \1\.                          barrier.

[[Page 296]]


  Type C...........................  ......do..............  No secondary barrier          No secondary barrier
                                                              required.                     required.
----------------------------------------------------------------------------------------------------------------
\1\ The hull may be a secondary barrier.


(14 U.S.C. 632; 46 U.S.C. 369, 375, and 416; 49 U.S.C. 1655(b); 49 CFR
1.46(b))

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.460  Design criteria.

    At static angles of heel up through 30[deg], a secondary barrier
must
    (a) If a complete secondary barrier is required in Sec. 154.459,
hold all of the liquid cargo in the cargo tank for at least 15 days
under the dynamic loads in Sec. 154.409(e);
    (b) If a partial secondary barrier is permitted in Sec. 154.459,
hold any leakage of liquid cargo corresponding to the extent of failure
under Sec. 154.448(a) after initial detection or primary barrier leak
for at least 15 days under the dynamic loads in Sec. 154.409(e);
    (c) If the primary barrier fails, prevent the temperature of the
vessel's structure from falling below the minimum allowable service
temperature of the steel; and
    (d) Be designed so that a cargo tank failure does not cause a
failure in the secondary barrier.

                               Insulation



Sec. 154.465  General.

    If the design temperature is below -10 [deg]C (14 [deg]F), the cargo
tank insulation must prevent the temperature of the vessel's hull from
cooling below the minimum temperature allowed under Sec. 154.172.



Sec. 154.466  Design criteria.

    (a) The insulation for a cargo tank without a secondary barrier must
be designed for the cargo tank at the design temperature, and for a
vessel operating in:
    (1) Any waters in the world, except Alaskan waters, for the ambient
cold condition of:
    (i) Five knots air at -18 [deg]C (0 [deg]F); and
    (ii) Still sea water at 0 [deg]C (32 [deg]F); or
    (2) Alaskan waters for the ambient cold condition of:
    (i) Five knots air at -29 [deg]C (20 [deg]F); and
    (ii) Still sea water at -2 [deg]C (28 [deg]F).
    (b) The insulation for a cargo tank with a secondary barrier must be
designed for the secondary barrier at the design temperature, and the
ambient cold conditions listed under paragraph (a)(1) or paragraph
(a)(2) of this section.
    (c) The insulation material must be designed for any loads
transmitted from adjacent hull structure.
    (d) Insulation for cargo tank and piping must meet Sec. 38.05-20 of
this chapter.
    (e) Powder or granulated insulation must:
    (1) Not compact from vibrations of the vessel;
    (2) Maintain the thermal conductivity listed under Sec. 154.467;
and
    (3) Not exert a static pressure greater than the external design
pressure of the cargo tank under Sec. 154.408.



Sec. 154.467  Submission of insulation information.

    The following insulation information must be submitted for special
approval by the Commandant (CG-ENG):
    (a) Compatibility with the cargo.
    (b) Solubility in the cargo.
    (c) Absorption of the cargo.
    (d) Shrinkage.
    (e) Aging.
    (f) Closed cell content.
    (g) Density.
    (h) Mechanical properties.
    (i) Thermal expansion.
    (j) Abrasion.
    (k) Cohesion.
    (l) Thermal conductivity.
    (m) Resistance to vibrations.
    (n) Resistance to fire and flame spread.
    (o) The manufacturing and installation details of the insulation
including:
    (1) Fabrication;

[[Page 297]]

    (2) Storage;
    (3) Handling;
    (4) Erection; and
    (5) Quality control.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                             Support System



Sec. 154.470  General.

    (a) A cargo tank must have a support system that:
    (1) prevents movement of the cargo tank under the static and dynamic
loads in Sec. 154.406; and
    (2) allows the cargo tank to contract and expand from temperature
variation and hull deflection without exceeding the design stress of the
cargo tank and the hull.
    (b) The cargo tank support system must have a key that prevents
rotation of the cargo tank.
    (c) An independent tank must have supports with an antifloatation
system that withstands the upward force of the tank without causing
plastic deformation that endangers the hull structure when the tank is:
    (1) Empty; and
    (2) In a hold space flooded to the summer load draft of the vessel.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by USCG-2014-0688, 79
FR 58285, Sept. 29, 2014]



Sec. 154.471  Design criteria.

    (a) The cargo tank support system must be designed:
    (1) For the loads in Sec. 154.406(a);
    (2) To not exceed the allowable stress under this part at a static
angle of heel of 30[deg];
    (3) To withstand a collision force equal to at least one-half the
weight of the cargo tank and cargo from forward and one-quarter the
weight of the cargo tank and cargo from aft; and
    (4) For the largest resulting acceleration in Figure 1, including
rotational and translation effects.
    (b) The cargo tank support design loads in paragraph (a) of this
section may be analyzed separately.



Sec. 154.476  Cargo transfer devices and means.

    (a) If a cargo pump in a cargo tank is not accessible for repair
when the cargo tank is in use, the cargo tank must have an additional
means of cargo transfer, such as another pump or gas pressurization.
    (b) If cargo is transferred by gas pressurization, the pressurizing
line must have a safety relief valve that is set at less than 90 percent
of the tank relief valve setting.

                    Cargo and Process Piping Systems



Sec. 154.500  Cargo and process piping standards.

    The cargo liquid and vapor piping and process piping systems must
meet the requirements in Sec. Sec. 154.503 through 154.562, Subparts
56.01 through 56.35, Sec. Sec. 56.50-20 and 56.50-105, and Subparts
56.60 through 56.97 of this chapter.



Sec. 154.503  Piping and piping system components: Protection from
movement.

    Where thermal movement and movements of the cargo tank and the hull
structure may cause stresses that exceed the design stresses, the piping
and piping system components and cargo tanks must be protected from
movement by:
    (a) Offsets;
    (b) Loops;
    (c) Bends;
    (d) Mechanical expansion joints including:
    (1) Bellows;
    (2) Slip joints;
    (3) Ball joints; or
    (e) Other means specially approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.506  Mechanical expansion joint: Limits in a piping system.

    Mechanical expansion joints in a piping system outside of a cargo
tank:
    (a) May be installed only if offsets, loops or bends cannot be
installed due to limited space or piping arrangement;
    (b) Must be a bellows type; and

[[Page 298]]

    (c) Must not have insulation or a cover unless necessary to prevent
damage.



Sec. 154.512  Piping: Thermal isolation.

    Low temperature piping must be thermally isolated from any adjacent
hull structure to prevent the temperature of that structure from
dropping below the minimum temperature for the hull material under Sec.
154.170.



Sec. 154.514  Piping: Electrical bonding.

    (a) Cargo tanks or piping that are separated from the hull structure
by thermal isolation must be electrically bonded to the hull structure
by a method under paragraph (c) of this section.
    (b) A pipe joint or a hose connection fitting that has a gasket must
be electrically bonded by a method under paragraph (c) of this section
that bonds:
    (1) Both sides of the connection to the hull structure; or
    (2) Each side of the connection to the other side.
    (c) An electrical bond must be made by at least one of the following
methods:
    (1) A metal bonding strap attached by welding or bolting.
    (2) Two or more bolts that give metal to metal contact between the
bolts and the parts to be bonded.
    (3) Metal to metal contact between adjacent parts under designed
operating conditions.



Sec. 154.516  Piping: Hull protection.

    A vessel's hull must be protected from low temperature liquid
leakage by a drip pan, or other means specially approved by the
Commandant (CG-ENG), at:
    (a) Each piping connection dismantled on a routine basis;
    (b) Cargo discharge and loading manifolds; and
    (c) Pump seals.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.517  Piping: Liquid pressure relief.

    The cargo loading and discharge crossover headers, cargo hoses, and
cargo loading arms must have means to relieve cargo pressure and to
remove liquid cargo.



Sec. 154.519  Piping relief valves.

    (a) The liquid relief valve that protects the cargo piping system
from liquid pressure exceeding the design pressure must discharge into:
    (1) A cargo tank; or
    (2) A cargo vent mast if that vent mast has a means for the
detection and removal of the liquid cargo that is specially approved by
the Commandant (CG-ENG).
    (b) A relief valve on a cargo pump that protects the cargo piping
system must discharge into the pump suction.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.520  Piping calculations.

    A piping system must be designed to meet the allowable stress values
under Sec. 56.07-10 of this chapter and, if the design temperature is -
110 [deg]C (-166 [deg]F) or lower, the stress analysis must be specially
approved by the Commandant (CG-ENG) and must include:
    (a) Pipe weight loads;
    (b) Acceleration loads;
    (c) Internal pressure loads;
    (d) Thermal loads; and
    (e) Loads from the hull.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.522  Materials for piping.

    (a) The materials for piping systems must meet Sec. 154.625 for the
minimum design temperature of the piping, except the material for open
ended vent piping may be specially approved by the Commandant (CG-ENG)
if:
    (1) The temperature of the cargo at the pressure relief valve
setting is -55 [deg]C (-67 [deg]F) or warmer; and
    (2) Liquid cannot discharge to the vent piping.
    (b) Materials for piping outside the cargo tanks must have a melting
point of at least 925 [deg]C (1697 [deg]F), except for

[[Page 299]]

short lengths of pipes with fire resisting insulation that are attached
to the cargo tanks.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by USCG-2014-0688, 79
FR 58285, Sept. 29, 2014]



Sec. 154.524  Piping joints: Welded and screwed couplings.

    Pipe lengths without flanges must be joined by one of the following:
    (a) A butt welded joint with complete penetration at the weld root
except that for design temperatures colder than -10 [deg]C (14 [deg]F)
the butt weld must be double welded or must be welded using:
    (1) A backing ring that for design pressures greater than 979 kPa
gauge (142 psig) must be removed after the weld is completed;
    (2) A consumable insert; or
    (3) An inert gas back-up on the first weld pass.
    (b) A slip-on welded joint with sleeves and attachment welds is
allowed for an open ended pipe with an external diameter of 50 mm (2
in.) or less and a design temperature of -55 [deg]C (-67 [deg]F), or
warmer.
    (c) A socket weld fitting with attachment welds is allowed for pipe
with an external diameter of 50 mm (2 in.) or less and a design
temperature of -55 [deg]C (-67 [deg]F) or warmer.
    (d) Screwed couplings are allowed for instrumentation and control
piping that meets Sec. 56.30-20 and Sec. 56.50-105 (a)(4) and (b)(4)
of this chapter.
    (e) A method or fitting specially approved by the Commandant (CG-
ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.526  Piping joints: Flange connection.

    Flange connections for pipe joints must meet Sec. 56.30-10 and
Sec. 56.50-105 (a)(4) and (b)(4) of this chapter.



Sec. 154.528  Piping joints: Flange type.

    (a) A flange must be one of the following types:
    (1) Welding neck.
    (2) Slip-on.
    (3) Socket weld.
    (b) If the piping is designed for a temperature between -10 [deg]C
(14 [deg]F) and -55 [deg]C (-67 [deg]F), the pipe flange may be a:
    (1) Slip-on type, if the nominal pipe size is 100 mm (4 in.) or
less;
    (2) Socket weld, if the nominal pipe size is 50 mm (2 in.) or less;
or
    (3) Welding neck.
    (c) If the piping is designed for a temperature lower than -55
[deg]C (-67 [deg]F), the pipe flange must be a welding neck type.



Sec. 154.530  Valves: Cargo tank MARVS 69 kPa gauge (10 psig) or lower.

    (a) Except those connections for tank safety relief valves and for
liquid level gauging devices other than those under Sec. Sec. 154.536
and 154.1310, liquid and vapor connections on a cargo tank with a MARVS
of 69 kPa gauge (10 psig) or lower must have shut-off valves that--
    (1) Are located as close to the tank as practical;
    (2) Are capable of local manual operation; and
    (3) May be remotely controlled.
    (b) The cargo piping system for a cargo tank with a MARVS of 69 kPa
gauge (10 psig) or lower must have at least one remotely controlled
quick-closing shut-off valve for closing liquid and vapor piping between
vessel and shore that meets Sec. Sec. 154.540 and 154.544.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.532  Valves: Cargo tank MARVS greater than 69 kPa gauge (10
psig).

    (a) Except connections for tank safety relief valves and except for
liquid level gauging devices other than those under Sec. Sec. 154.536
and 154.1310, liquid and vapor connections on a cargo tank with a MARVS
greater than 69 kPa gauge (10 psig) must have, as close to the tank as
practical, a:
    (1) Stop valve capable of local manual operation; and
    (2) A remotely controlled quick-closing shut-off valve.
    (b) If the nominal pipe size of a liquid or vapor connection is less
than 50 mm (2 in.), an excess flow valve may be substituted for the
quick-closing valve under paragraph (a) of this section.
    (c) One valve may be substituted for the manual controlled stop
valve and the remotely controlled quick-closing

[[Page 300]]

shut-off valve required under paragraph (a) of this section if that
valve:
    (1) Meets Sec. Sec. 154.540 and 154.544; and
    (2) Is capable of local manual operation.



Sec. 154.534  Cargo pumps and cargo compressors.

    Cargo pumps and cargo compressors must shut-down automatically when
the quick-closing shut-off valves under Sec. Sec. 154.530 and 154.532
are closed by the emergency shut-down system required under Sec.
154.540.



Sec. 154.536  Cargo tank gauging and measuring connections.

    Unless the outward flow from a cargo tank is less than the flow
through a circular hole of 1.4 mm (0.055 in.) in diameter, cargo tank
connections for gauging or measuring devices must have the excess flow,
shut-off, or quick-closing shut-off valves under Sec. 154.530 or Sec.
154.532.



Sec. 154.538  Cargo transfer connection.

    A cargo transfer connection must have a:
    (a) Remotely controlled quick-closing shut-off valve that meets
Sec. Sec. 154.540 and 154.544; or
    (b) Blank flange.



Sec. 154.540  Quick-closing shut-off valves: Emergency shut-down system.

    The quick-closing shut-off valves under Sec. Sec. 154.530, 154.532,
and 154.538 must have an emergency shut-down system that:
    (a) Closes all the valves;
    (b) Is actuated by a single control in at least two locations remote
from the quick-closing valves;
    (c) Is actuated by a single control in each cargo control station
under Sec. 154.320; and
    (d) Has fusible elements at each tank dome and cargo loading and
discharge manifold that melt between 98 [deg]C (208 [deg]F) and 104
[deg]C (220 [deg]F) and actuate the emergency shut-down system.



Sec. 154.544  Quick-closing shut-off valves.

    The quick-closing shut-off valve under Sec. Sec. 154.530, 154.532
and 154.538 must:
    (a) Be a shut-off valve;
    (b) Close from the time of actuation in 30 seconds or less;
    (c) Be the fail-closed type; and
    (d) Be capable of local manual closing.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987]



Sec. 154.546  Excess flow valve: Closing flow.

    (a) The rated closing flow of vapor or liquid cargo for an excess
flow valve must be specially approved by the Commandant (CG-ENG).
    (b) An excess flow valve allowed under Sec. 154.532(b) must close
automatically at the rated closing flow.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.548  Cargo piping: Flow capacity.

    Piping with an excess flow valve must have a vapor or liquid flow
capacity that is greater than the rated closing flow under Sec.
154.546.



Sec. 154.550  Excess flow valve: Bypass.

    If the excess flow valve allowed under Sec. 154.532(b) has a
bypass, the bypass must be of 1.0 mm (0.0394 in.) or less in diameter.

                               Cargo Hose



Sec. 154.551  Cargo hose: General.

    Each of the vessel's liquid and vapor cargo hose for loading or
discharging cargo must meet Sec. Sec. 154.552 through 154.562.



Sec. 154.552  Cargo hose: Compatibility.

    Liquid and vapor cargo hoses must:
    (a) Not chemically react with the cargo; and
    (b) Withstand design temperature.



Sec. 154.554  Cargo hose: Bursting pressure.

    Cargo hose that may be exposed to the pressure in the cargo tank,
the cargo pump discharge, or the vapor compressor discharge must have a
bursting pressure of at least five times the maximum working pressure on
the hose during cargo transfer.

[[Page 301]]



Sec. 154.556  Cargo hose: Maximum working pressure.

    A cargo hose must have a maximum working pressure not less than the
maximum pressure to which it may be subjected and at least 1034 kPa
gauge (150 psig).



Sec. 154.558  Cargo hose: Marking.

    Each cargo hose must be marked with the:
    (a) Maximum working pressure; and
    (b) Minimum service temperature for service at other than ambient
temperature.



Sec. 154.560  Cargo hose: Prototype test.

    (a) Each cargo hose must be of a type that passes a prototype test
at a pressure of at least five times its maximum working pressure at or
below the minimum service temperature.
    (b) Each cargo hose must not be the hose used in the prototype test.



Sec. 154.562  Cargo hose: Hydrostatic test.

    Each cargo hose must pass a hydrostatic pressure test at ambient
temperature of at least one and a half times its specified maximum
working pressure but not more than two-fifths its bursting pressure.

                                Materials



Sec. 154.605  Toughness test.

    (a) Each toughness test under Sec. Sec. 154.610 through 154.625
must meet Subpart 54.05 of this chapter.
    (b) If subsize test specimens are used for the Charpy V-notch
toughness test, the Charpy V-notch energy must meet Table 54.05-20 (a)
of this chapter.



Sec. 154.610  Design temperature not colder than 0 [deg]C (32 [deg]F).

    Materials for cargo tanks for a design temperature not colder than 0
[deg]C (32 [deg]F) must meet the following:
    (a) The tank materials must meet Sec. Sec. 54.25-1 and 54.25-3 of
this chapter.
    (b) Plates, forgings, rolled and forged bars and shapes must be
carbon manganese steel or other material allowed under Sec. Sec.
154.615, 154.620, and 154.625.
    (c) Plates must be normalized or quenched and tempered and where the
thickness exceeds 20 mm (0.787 in.), made with fine grain practice,
austenitic grain size of five or finer. A control rolling procedure may
be substituted for normalizing if specially approved by the Commandant
(CG-ENG). Plate for an independent tank type C must also meet the
requirements of ASTM A 20 (incorporated by reference, see Sec. 154.1)
and Sec. 54.01-18(b)(5) of this chapter.
    (d) For integral and independent type A tanks, the American Bureau
of Shipping's grade D not exceeding 20 mm (0.787 in.) in thickness, and
Grade E hull structural steel are allowed if the steel meets Sec.
54.05-10 of this chapter.
    (e) The tensile properties under paragraph (a) of this section must
be determined for:
    (1) Each plate as rolled; and
    (2) Each five short ton batch of forgings, forged or rolled
fittings, and forged or rolled bars and shapes.
    (f) The specified yield strength must not exceed 637 MPa (92.43 Ksi)
and when it exceeds 490 MPa (71.10 Ksi), the hardness of the weld and
the heat affected zone must be specially approved by the Commandant (CG-
ENG).
    (g) The Charpy V-notch impact energy must be determined for:
    (1) Each plate as rolled; and
    (2) Each five short ton batch of forgings, forged or rolled fittings
and rolled or forged bars and shapes.
    (h) The orientation and required impact energy of a 10 mm x 10 mm
(0.394 in. x 0.394 in.) Charpy V-notch specimen must be:
    (1) For plates; transverse specimen and 27.4 J (20 ft-lbs); and
    (2) For forgings, forged and rolled fittings and rolled and forged
bars: longitudinal specimen and 41.1 J (30 ft-lbs).
    (i) The test temperature of the Charpy V-notch specimens is as
follows:

------------------------------------------------------------------------
               Material Thickness                    Test Temperature
------------------------------------------------------------------------
t<=20 mm (0.788 in.)...........................     0 [deg]C (32 [deg]F)
20
Sec. 154.615  Design temperature below 0 [deg]C (32 [deg]F) and down
to -55 [deg]C (-67 [deg]F).

    Plates, forgings, forged or rolled or forged bars and shapes for
cargo tanks and secondary barriers for a design temperature below 0
[deg]C (32 [deg]F) and down to -55 [deg]C (-67 [deg]F) must meet Sec.
54.25-10 of this chapter.



Sec. 154.620  Design temperature below -55 [deg]C (-67 [deg]F) and down
to -165 [deg]C (-265 [deg]F).

    Plates, forgings and forged or rolled fittings, and rolled, forged
or extruded bars and shapes for cargo tanks, secondary barriers, and
process pressure vessels for a design temperature below -55 [deg]C (-67
[deg]F) and down to -165 [deg]C (-265 [deg]F) must:
    (a) Meet Sec. 54.25-10(b)(2), Sec. 54.25-15, or Sec. 54.25-20 of
this chapter; or
    (b) Be of an aluminum alloy that is specially approved by the
Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.625  Design temperature below 0 [deg]C (32 [deg]F) and down
to -165 [deg]C (-265 [deg]F).

    Pipes, tubes, forgings, castings, bolting, and nuts for cargo and
process piping for a design temperature below 0 [deg]C (32 [deg]F) and
down to -165 [deg]C (-265 [deg]F) must meet Sec. 56.50-105 of this
chapter.



Sec. 154.630  Cargo tank material.

    (a) If a material of a cargo tank is not listed in Sec. Sec.
154.610, 154.615 or Sec. 154.620, the allowable stress of that material
must be specially approved by the Commandant (CG-ENG).
    (b) For cargo tanks of aluminum alloys with welded connections, the
minimum tensile strength ([sigma]B) for the calculations
under Sec. 154.440, Sec. 154.447 and Sec. 154.450 must be the minimum
tensile strength of the alloy in the annealed condition.
    (c) Increased yield strength and tensile strength of a material at
low temperature for independent tanks type A, B, and C must be specially
approved by the Commandant (CG-ENG).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                              Construction



Sec. 154.650  Cargo tank and process pressure vessel welding.

    (a) Cargo tank and process pressure vessel welding must meet Subpart
54.05 and Part 57 of this chapter.
    (b) Welding consumables used in welding cargo tanks must meet Sec.
57.02-4 of this chapter.
    (c) Independent tanks must meet the following:
    (1) Each welded joint of the shells must be a full penetration butt
weld, except dome to shell connections may have full penetration tee
welds.
    (2) Each nozzle weld must be of the full penetration type, except
for small penetrations on domes.
    (d) Each welded joint in an independent tank type C or in a process
pressure vessel must meet part 54 of this chapter, except that any
backing rings must be removed unless specially approved by the
Commandant (CG-OES).
    (e) Each welded joint in a membrane tank must meet the quality
assurance measures, weld procedure qualification, design details,
materials, construction, inspection, and production testing of
components developed during the prototype testing program that are
specially approved by the Commandant (CG-OES) under this part.
    (f) Each welded joint in a semi-membrane tank must meet paragraph
(c) or (e) of this section.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.655  Stress relief for independent tanks type C.

    For a design temperature colder than -10 [deg]C (14 [deg]F), an
independent tank type C of:
    (a) Carbon and carbon-manganese steel must be stress relieved by
post-weld heat treatment under Sec. 54.25-7 of this chapter or by
mechanical stress relief under subpart 54.30 of this chapter; or
    (b) Materials other than carbon and carbon manganese steel must be
stress relieved as required under part 54 of this chapter. The procedure
for stress relieving must be specially approved by the Commandant (CG-
OES).

[[Page 303]]



Sec. 154.660  Pipe welding.

    (a) Pipe welding must meet part 57 of this chapter.
    (b) Longitudinal butt welds, in piping that does not meet a standard
or specification under Sec. 56.60-1 of this chapter, and girth butt
welds must meet the following:
    (1) Butt welds of pipes made from carbon, carbon manganese, or low
alloy steels must meet Sec. 56.50-105 of this chapter, including the
requirements for post-weld heat treatment.
    (2) Except for piping inside an independent cargo tank type A, B, or
C, butt welds must be 100% radiographically tested if the design
temperature is lower than -10 [deg]C (14 [deg]F), and:
    (i) The wall thickness is greater than 10 mm (0.394 in.); or
    (ii) The nominal pipe diameter is greater than 100 mm (nominal 4
in.).
    (3) If Table 4 references this section, butt welds for deck cargo
piping exceeding 75 mm (3 in.) in diameter must be 100% radiographically
tested.
    (4) Butt welds of pipes not meeting paragraph (b)(2) or (b)(3) of
this section must meet the non-destructive testing requirements under
Subpart 56.95 of this chapter.



Sec. 154.665  Welding procedures.

    Welding procedure tests for cargo tanks for a design temperature
colder than 0 [deg]C (32 [deg]F), process pressure vessels, and piping
must meet Sec. 54.05-15 and Subpart 57.03 of this chapter.

                 Cargo Pressure and Temperature Control



Sec. 154.701  Cargo pressure and temperature control: General.

    Except as allowed under Sec. 154.703, cargo tanks must:
    (a) Have their safety relief valves set at a pressure equal to or
greater than the vapor pressure of the cargo at 45 [deg]C (113 [deg]F)
but not greater than the MARVS under Sec. 154.405; or
    (b) Be refrigerated by a system meeting Sec. 154.702, and each
refrigerated incompatible cargo refrigerated by a separate system.



Sec. 154.702  Refrigerated carriage.

    (a) Each refrigeration system must:
    (1) Have enough capacity to maintain the cargo vapor pressure in
each cargo tank served by the system below the set pressure of the
relief valves under ambient temperatures of 45 [deg]C (113 [deg]F) still
air and 32 [deg]C (89.6 [deg]F) still water with the largest unit in the
system inoperative; or
    (2) Have a standby unit with a capacity at least equal to the
capacity of the largest refrigeration unit in the system.
    (b) For the purpose of this section, a ``refrigeration unit''
includes a compressor and its motors and controls.
    (c) Each refrigeration system must:
    (1) Have a heat exchanger with an excess capacity of 25 percent of
the required capacity; or
    (2) A standby heat exchanger.
    (d) Where cooling water is used in a refrigeration system:
    (1) The cooling water pump or pumps must be used exclusively for the
system;
    (2) Each pump must have suction lines from sea chests on the port
and starboard sides of the vessel; and
    (3) There must be a standby pump, that may be used for:
    (i) Non-essential purposes on the vessel; or
    (ii) Essential purposes on the vessel, if the pump is sized to
simultaneously provide for the capacity requirements for the essential
purposes and the refrigeration cooling water.
    (e) Each refrigeration system must use refrigerants that are
compatible with the cargo and, for cascade units, with each other.
    (f) The pressure of the heat transfer fluid in each cooling coil in
a tank must be greater than the pressure of the cargo.



Sec. 154.703  Methane (LNG).

    Unless a cargo tank carrying methane (LNG) can withstand the
pressure build up due to boil-off for 21 days, the pressure in the cargo
tank must be maintained below the set pressure of the safety relief
valve for at least 21 days by:
    (a) A refrigeration system that meets Sec. 154.702;
    (b) A waste heat or catalytic furnace that burns boil-off gas, and:

[[Page 304]]

    (1) Maintains the stack exhaust temperature below 535 [deg]C (995
[deg]F);
    (2) Exhibits no visible flame; and
    (3) Is specially approved by the Commandant (CG-OES);
    (c) Boilers, inert gas generators, and combustion engines in the
main propelling machinery space that use boil-off gas as fuel; or
    (d) Equipment for services, other than those under paragraph (c) of
this section, that use boil-off gas as fuel and that are located:
    (1) In the main propelling machinery space; or
    (2) a space specially approved by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.705  Cargo boil-off as fuel: General.

    (a) Each cargo boil-off fuel system under Sec. 154.703(c) must meet
Sec. Sec. 154.706 through 154.709.
    (b) The piping in the cargo boil-off fuel system must have a
connection for introducing inert gas and for gas freeing the piping in
the machinery space.
    (c) A gas fired main propulsion boiler or combustion engine must
have a fuel oil fired pilot that maintains fuel flow as required under
Sec. 154.1854 if the gas fuel supply is cut-off.



Sec. 154.706  Cargo boil-off as fuel: Fuel lines.

    (a) Gas fuel lines must not pass through accommodation, service, or
control spaces. Each gas fuel line passing through other spaces must
have a master gas fuel valve and meet one of the following:
    (1) The fuel line must be a double-walled piping system with the
annular space containing an inert gas at a pressure greater than the
fuel pressure. Visual and audible alarms must be installed at the
machinery control station to indicate loss of inert gas pressure.
    (2) The fuel line must be installed in a mechanically exhaust-
ventilated pipe or duct, having a rate of air change of at least 30
changes per hour. The pressure in the space between the inner pipe and
outer pipe or duct must be maintained at less than atmospheric pressure.
Continuous gas detection must be installed to detect leaks in the
ventilated space. The ventilation system must meet Sec. 154.1205.
    (b) Each double wall pipe or vent duct must terminate in the
ventilation hood or casing under Sec. 154.707(a). Continuous gas
detection must be installed to indicate leaks in the hood or casing.



Sec. 154.707  Cargo boil-off as fuel: Ventilation.

    (a) A ventilation hood or casing must be installed in areas occupied
by flanges, valves, and piping at the fuel burner to cause air to sweep
across them and be exhausted at the top of the hood or casing.
    (b) The hood or casing must be mechanically exhaust-ventilated and
meet Sec. 154.1205.
    (c) The ventilated hood or casing must have an airflow rate
specially approved by the Commandant.



Sec. 154.708  Cargo boil-off as fuel: Valves.

    (a) Gas fuel lines to the gas consuming equipment must have two
fail-closed automatic valves in series. A third valve, designed to fail-
open, must vent that portion of pipe between the two series valves to
the open atmosphere.
    (b) The valves under paragraph (a) of this section must be arranged
so that loss of boiler forced draft, flame failure, or abnormal gas fuel
supply pressure automatically causes the two series valves to close and
the vent valve to open. The function of one of the series valves and the
vent valve may be performed by a single three-way valve.
    (c) A master gas fuel valve must be located outside the machinery
space, but be operable from inside the machinery space and at the valve.
The valve must automatically close when there is:
    (1) A gas leak detected under Sec. 154.706(a)(2) or Sec.
154.706(b);
    (2) Loss of the ventilation under Sec. 154.706(a)(2) or Sec.
154.707(c); or
    (3) Loss of inert gas pressure within the double-walled piping
system under Sec. 154.706(a)(1).

[[Page 305]]



Sec. 154.709  Cargo boil-off as fuel: Gas detection equipment.

    (a) The continuous gas detection system required under Sec.
154.706(a)(2) and (b) must:
    (1) Meet Sec. 154.1350(c), (d), and (j) through (s); and
    (2) Have a device that:
    (i) Activates an audible and visual alarm at the machinery control
station and in the wheelhouse if the methane concentration reaches 1.5
percent by volume; and
    (ii) Closes the master gas fuel valve required under Sec.
154.708(c) before the methane concentration reaches 3 percent by volume.
    (b) The number and arrangement of gas sampling points must be
specially approved by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                           Cargo Vent Systems



Sec. 154.801  Pressure relief systems.

    (a) Each cargo tank that has a volume of 20m\3\ (706 ft.\3\) or less
must have at least one pressure relief valve.
    (b) Each cargo tank that has a volume of more than 20m\3\ (706
ft.\3\) must have at least two pressure relief valves of the same
nominal relieving capacity.
    (c) Each pressure relief valve must:
    (1) Meet Subpart 162.018 of this chapter or, if the valve is also
capable of vacuum relief and the MARVS is 69 kPa gauge (10 psig) or
less, Subpart 162.017 of this chapter, and have at least the capacity
required under Sec. 154.806;
    (2) Not be set for a higher pressure than the MARVS;
    (3) Have a fitting for sealing wire that prevents the set pressure
from being changed without breaking the sealing wire;
    (4) Be fitted on the cargo tank to remain in the vapor phase under
conditions of 15[deg] list and of 0.015 L trim by both the bow and
stern;
    (5) Vent to a vent mast under Sec. 154.805, except a relief valve
may vent to a common tank relief valve header if the back pressure is
included in determining the required capacity under Sec. 154.806;
    (6) Not vent to a common header or common vent mast if the relief
valves are connected to cargo tanks carrying chemically incompatible
cargoes;
    (7) Not have any stop valves or other means of isolating the cargo
tank from its relief valve unless:
    (i) The stop valves are interlocked or arranged so that only one
pressure relief valve is out of service at any one time;
    (ii) The interlock arrangement automatically shows the relief valve
that is out of service; and
    (iii) The other valves have the relieving capacity required under
Sec. 154.806, or all relief valves on the cargo tank are the same size
and there is a spare of the same size, or there is a spare for each
relief valve on a cargo tank.
    (d) The pressure relief system must:
    (1) If the design temperature is below 0 [deg]C (32 [deg]F), be
designed to prevent the relief valve from becoming inoperative due to
ice formation; and
    (2) Be designed to prevent chattering of the relief valve.

[CGD 74-289, 44 FR 26009, May 3, 1979; 44 FR 59234, Oct. 15, 1979]



Sec. 154.802  Alternate pressure relief settings.

    Cargo tanks with more than one relief valve setting must have one of
the following arrangements:
    (a) Relief valves that:
    (1) Are set and sealed under Sec. 154.801(c);
    (2) Have the capacity under Sec. 154.806; and
    (3) Are interlocked so that cargo tank venting can occur at any
time.
    (b) Relief valves that have spacer pieces or springs that:
    (1) Change the set pressure without pressure testing to verify the
new setting; and
    (2) Can be installed without breaking the sealing wire required
under Sec. 154.801(c)(3).



Sec. 154.804  Vacuum protection.

    (a) Except as allowed under paragraph (b) of this section, each
cargo tank must have a vacuum protection system meeting paragraph (a)(1)
of this

[[Page 306]]

section and either paragraph (a)(2) or (a)(3) of this section.
    (1) There must be a means of testing the operation of the system.
    (2) There must be a pressure switch that operates an audible and
visual alarm in the cargo control station identifying the tank and the
alarm condition and a remote group audible and visual alarm in the
wheelhouse. Both alarms must be set at or below 80% of the maximum
external design pressure differential of the cargo tanks. There must be
a second, independent pressure switch that automatically shuts off all
suction of cargo liquid or vapor from the cargo tank and secures any
refrigeration of that tank at or below the maximum external design
pressure differential.
    (3) There must be a vacuum relief valve that:
    (i) Has a gas flow capacity at least equal to the maximum cargo
discharge rate per tank;
    (ii) Is set to open at or below the maximum external design pressure
differential; and
    (iii) Admits inert gas, cargo vapor from a source other than a cargo
vapor header, or air except as prohibited under Sec. 154.1710.
    (b) A vacuum protection system does not have to be installed if the
cargo tank is designed to withstand:
    (1) A maximum external pressure differential exceeding 24.5 kPa
gauge (3.55 psig); and
    (2) The maximum external pressure differential that can be obtained:
    (i) At maximum discharge rates with no vapor return to the cargo
tanks;
    (ii) By operation of the cargo refrigeration system; or
    (iii) By drawing off vapor for use in accordance with Sec.
154.703(c)

[CGD 74-289, 44 FR 26009, May 3, 1979; 44 FR 59234, Oct. 15, 1979]



Sec. 154.805  Vent masts.

    Relief valves or common vent headers from relief valves must
discharge to a vent mast that:
    (a) Discharges vertically upward;
    (b) Has a rain cap or other means of preventing the entrance of rain
or snow;
    (c) Has a screen with 25mm (1 inch) wire mesh or bars not more than
25mm (1 in.) apart on the discharge port;
    (d) Extends at least to a height of B/3 or 6m (19.7 ft.), whichever
is greater, above the weather deck and 6m (19.7 ft.) above the working
level;
    (e) For a cargo tank, does not exhaust cargo vapors within a radius
of B or 25m (82 ft.), whichever is less, from any forced or natural
ventilation intake or other opening to an accommodation, service,
control station, or other gas-safe space, except that for vessels less
than 90m (295 ft.) in length, shorter distances may be specially
approved by the Commandant (CG-OES);
    (f) For a containment system, except a cargo tank, does not exhaust
vapor within a radius of 10m (32.8 ft.) or less from any forced or
natural ventilation intake or other opening to an accommodation,
service, control station, or other gas-safe space;
    (g) Has drains to remove any liquid that may accumulate; and
    (h) Prevents accumulations of liquid at the relief valves.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.806  Capacity of pressure relief valves.

    Pressure relief valves for each cargo tank must have a combined
relief capacity, including the effects of back pressure from vent
piping, headers, and masts, to discharge the greater of the following
with not more than a 20% rise in cargo tank pressure above the set
pressure of the relief valves:
    (a) The maximum capacity of an installed cargo tank inerting system
if the maximum attainable working pressure of the cargo tank inerting
system exceeds the set pressure of the relief valves.
    (b) The quantity of vapors generated from fire exposure that is
calculated under Sec. 54.15-25 of this chapter.

[[Page 307]]

            Atmospheric Control in Cargo Containment Systems



Sec. 154.901  Atmospheric control within cargo tanks and cargo piping
systems.

    (a) Each vessel must have a piping system for purging each cargo
tank and all cargo piping.
    (b) The piping system must minimize the pocketing of gas or air
remaining after purging.
    (c) For cargo tanks certificated to carry flammable gases, the
piping system must allow purging the tank of flammable vapors before air
is introduced and purging the tank of air before the tank is filled with
cargo.
    (d) Each cargo tank must have:
    (1) Gas sampling points at its top and bottom; and
    (2) Gas sampling line connections that are valved and capped above
the deck.



Sec. 154.902  Atmospheric control within hold and interbarrier spaces.

    (a) Vessels certificated to carry flammable cargo in cargo
containment systems with full secondary barriers must have an inert gas
system or onboard storage of inert gas that provides enough inert gas to
meet the requirements of Sec. 154.1848 for 30 days consumption.
    (b) Vessels certificated to carry flammable cargo in cargo
containment systems with partial secondary barriers must:
    (1) Have an inert gas system or onboard inert gas storage that can
inert the largest hold and interbarrier space so that the oxygen
concentration is 8 percent or less by volume; and
    (2) Meet paragraph (a) or (c)(2) of this section.
    (c) Vessels certificated to carry only nonflammable cargo in cargo
containment systems with secondary barriers must:
    (1) Meet paragraph (a) of this section; or
    (2) Have air drying systems that reduce the dew point of air
admitted to hold or interbarrier spaces below the temperature of any
surface in those spaces or -45 [deg]C (-49 [deg]F), whichever is warmer.
    (d) Vessels with refrigerated independent tanks type C must have
inert gas or air drying systems that reduce the dew point of any inert
gas or air admitted to the hold spaces below the temperature of any
surface in those spaces or -45 [deg]C (-49 [deg]F), whichever is warmer.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by USCG-2014-0688, 79
FR 58285, Sept. 29, 2014]



Sec. 154.903  Inert gas systems: General.

    (a) Inert gas carried or generated to meet Sec. Sec. 154.901,
154.902, and 154.1848 must be non-flammable and non-reactive with the
cargoes that the vessel is certificated to carry and the materials of
construction of the cargo tanks, hold and interbarrier spaces, and
insulation.
    (b) The boiling point and dew point at atmospheric pressure of the
inert gas must be below the temperature of any surface in those spaces
or -45 [deg]C (-49 [deg]F), whichever is warmer.
    (c) For the temperatures and pressures at which the gas is stored
and used, storage vessels and inert gas piping must meet Sec. Sec.
154.450 and 154.500 respectively.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by USCG-2014-0688, 79
FR 58285, Sept. 29, 2014]



Sec. 154.904  Inert gas system: Controls.

    The inert gas system must have:
    (a) At least one check valve in the cargo area to prevent the back
flow of cargo vapor into the inert gas system, or another means
specially approved by the Commandant (CG-OES);
    (b) If the inert gas system is in the machinery space or another
space outside the cargo area, a second check valve in the cargo area
meeting paragraph (a) of this section;
    (c) Automatic and manual inert gas pressure controls; and
    (d) Valves to isolate each inerted space.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.906  Inert gas generators.

    The inert gas generator must:

[[Page 308]]

    (a) Produce an inert gas containing less than 5% oxygen by volume;
    (b) Have a device to continuously sample the discharge of the
generator for oxygen content; and
    (c) Have an audible and visual alarm in the cargo control station
that alarms when the inert gas contains 5% or more oxygen by volume.



Sec. 154.908  Inert gas generator: Location.

    (a) Except as allowed in paragraph (b) of this section, an inert gas
generator must be located in the main machinery space or a space that is
not in the cargo area and does not have direct access to any
accommodation, service, or control space.
    (b) An inert gas generator that does not use flame burning equipment
may be located in the cargo area if specially approved by the Commandant
(CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.910  Inert gas piping: Location.

    Inert gas piping must not pass through or terminate in an
accommodation, service, or control space.



Sec. 154.912  Inerted spaces: Relief devices.

    Inerted spaces must be fitted with relief valves, rupture discs, or
other devices specially approved by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979; CGD 82-063b, 48 FR 39629, Sept.
1, 1983]

                               Electrical



Sec. 154.1000  Applicability.

    Sections 154.1005 through 154.1020 apply to flammable cargo and
ammonia carriers.



Sec. 154.1002  Definition.

    For the purposes of Sec. Sec. 154.1005 through 154.1020, ``gas-
dangerous'' does not include the weather deck of an ammonia carrier.



Sec. 154.1005  Equipment approval.

    (a) Electrical equipment that is required to be intrinsically safe
or explosion proof under Sec. 154.1010 must be specially approved by
the Commandant or listed as intrinsically safe or explosion proof by an
independent laboratory that is specially approved by the Commandant (CG-
OES), for Class I Division I locations and the Group that is specified
in Table 4 for the cargo carried.
    (b) Each submerged cargo pump motor installation must be specially
approved by the Commandant (CG-OES).
    (c) Electrical equipment that must be intrinsically safe to meet
Sec. 154.1010 must meet the definition in Sec. 110.15-100(i) of this
chapter.
    (d) Electrical equipment that must be explosion proof to meet Sec.
154.1010 must meet Sec. 110.15-65(e) of this chapter.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1010  Electrical equipment in gas-dangerous space or zone.

    (a) Except as allowed in this section, electrical equipment must not
be installed in a gas-dangerous space or zone.
    (b) Intrinsically safe electrical equipment and wiring may be in a
gas-dangerous space or zone.
    (c) A submerged cargo pump motor may be in a cargo tank if:
    (1) Low liquid level, motor current, or pump discharge pressure
automatically shuts down power to the pump motor if the pump loses
suction;
    (2) There is an audible and visual alarm at the cargo control
station that actuates if the motor shuts down under the requirements of
paragraph (c)(1) of this section; and
    (3) There is a lockable circuit breaker or lockable switch that
disconnects the power to the motor.
    (d) A supply cable for a submerged cargo pump motor may be in a hold
space.
    (e) A hold space that has a tank that is not required to have a
secondary barrier under Sec. 154.459 may only have:
    (1) Through runs of cable;
    (2) Explosion-proof lighting fixtures;
    (3) Depth sounding devices in gas-tight enclosures;
    (4) Log devices in gas-tight enclosures; and

[[Page 309]]

    (5) Impressed current cathodic protection system electrodes in gas-
tight enclosures.
    (f) A space that is separated by a gastight steel boundary from a
hold space that has a cargo tank that must have a secondary barrier,
under the requirements of Sec. 154.459, may only have:
    (1) Through runs of cable;
    (2) Explosion-proof lighting fixtures;
    (3) Depth sounding devices in gastight enclosures;
    (4) Log devices in gastight enclosures;
    (5) Impressed current cathodic protection system electrodes in
gastight enclosures;
    (6) Explosion-proof motors that operate cargo system valves or
ballast system valves; and
    (7) Explosion-proof bells for general alarm systems.
    (g) A cargo handling room may only have:
    (1) Explosion-proof lighting fixtures; and
    (2) Explosion-proof bells for general alarm systems.
    (h) A space for cargo hose storage may only have:
    (1) Explosion-proof lighting fixtures; and
    (2) Through runs of cable.
    (i) A space that has cargo piping may only have:
    (1) Explosion-proof lighting fixtures; and
    (2) Through runs of cable.
    (j) A gas-dangerous zone on the weather deck may only have:
    (1) Explosion-proof equipment that is for the operation of the
vessel; and
    (2) Through runs of cable.
    (k) A space, except those under paragraphs (e) through (j) of this
section, that has a direct opening to a gas-dangerous space or zone may
only have the electrical equipment allowed in the gas-dangerous space or
zone.



Sec. 154.1015  Lighting in gas-dangerous space.

    (a) Each gas-dangerous space that has lighting fixtures must have at
least two branch circuits for lighting.
    (b) Each switch and each overcurrent protective device for any
lighting circuit that is in a gas-dangerous space must open each
conductor of the circuit simultaneously.
    (c) Each switch and each overcurrent protective device for lighting
in a gas-dangerous space must be in a gas-safe space.



Sec. 154.1020  Emergency power.

    The emergency generator must be designed to allow operation at the
final angle of heel under Sec. 154.230(a).

                              Firefighting

                Firefighting System: Exterior Water Spray



Sec. 154.1105  Exterior water spray system: General.

    Each liquefied flammable gas vessel and each liquefied toxic gas
vessel must have an exterior water spray system that meets Sec. Sec.
154.1110 through 154.1135.



Sec. 154.1110  Areas protected by system.

    Each water spray system must protect:
    (a) All cargo tank surfaces that are not covered by the vessel's
hull structure or a steel cover;
    (b) Each cargo tank dome;
    (c) Each on-deck storage vessel for flammable or toxic liquefied
gases;
    (d) Each cargo discharge and loading manifold;
    (e) Each quick-closing valve under Sec. Sec. 154.530, 154.532, and
154.538, and other control valves essential to cargo flow;
    (f) Each boundary facing the cargo area of each superstructure that
contains accommodation, service, or control spaces;
    (g) Each boundary facing the cargo area of each deckhouse that
contains accommodation, service, or control spaces; and
    (h) Each boundary of each deckhouse that is within the cargo area
and that is manned during navigation of the vessel or during cargo
transfer operations, except the deckhouse roof if it is 2.4 m (8 ft.) or
higher above the cargo containing structure.

[CGD 74-289, 44 FR 26009, May 3, 1979; 44 FR 59234, Oct. 15, 1979]



Sec. 154.1115  Discharge.

    (a) The discharge density of each water spray system must be at
least:

[[Page 310]]

    (1) 10000 cm\3\/m\2\/min. (0.25 gpm/ft.\2\) over each horizontal
surface; and
    (2) 4000 cm\3\/m\2\/min. (0.10 gpm/ft.\2\) against vertical surface,
including the water rundown.
    (b) The water spray protection under Sec. 154.1110 (d) and (e) must
cover an area in a horizontal plane extending at least 0.5 m (19 in.) in
each direction from the pipes, fittings, and valves, or the area of the
drip tray, whichever is greater.



Sec. 154.1120  Nozzles.

    (a) Nozzles for the water spray system must be spaced to provide the
minimum discharge density under Sec. 154.1115 in each part of the
protected area.
    (b) The vertical distance between water spray nozzles for the
protection of vertical surfaces must be 3.7 m (12 ft.) or less.



Sec. 154.1125  Pipes, fittings, and valves.

    (a) Each pipe, fitting, and valve for each water spray system must
meet Part 56 of this chapter.
    (b) Each water spray main that protects more than one area listed in
Sec. 154.1110 must have at least one isolation valve at each branch
connection and at least one isolation valve downstream of each branch
connection to isolate damaged sections.
    (c) Each valved cross-connection from the water spray system to the
fire main must be outside of the cargo area.
    (d) Each pipe, fitting, and valve for the water spray system must be
made of fire resistant and corrosion resistant materials, such as
galvanized steel or galvanized iron pipe.
    (e) Each water spray system must have a means of drainage to prevent
corrosion of the system and freezing of accumulated water in subfreezing
temperatures.
    (f) Each water spray system must have a dirt strainer that is
located at the water spray system manifold or pump.



Sec. 154.1130  Sections.

    (a) If a water spray system is divided into sections, each section
must at least include the entire deck area bounded by the length of a
cargo tank and the full beam of the vessel.
    (b) If a water spray system is divided into sections, the control
valves must be at a single manifold that is aft of the cargo area.



Sec. 154.1135  Pumps.

    (a) Water to the water spray system must be supplied by:
    (1) A pump that is only for the use of the system;
    (2) A fire pump; or
    (3) A pump specially approved by the Commandant (CG-OES).
    (b) Operation of a water spray system must not interfere with
simultaneous operation of the fire main system at its required capacity.
There must be a valved cross-connection between the two systems.
    (c) Except as allowed under paragraph (d) of this section, each pump
for each water spray system must have the capacity to simultaneously
supply all areas named in Sec. 154.1110.
    (d) If the water spray system is divided into sections, the pump
under paragraph (a) of this section must have the capacity to
simultaneously supply the required discharge density under Sec.
154.1115(a) for:
    (1) The areas in Sec. Sec. 154.1110(f) through (h) and 154.1115(b);
and
    (2) The largest section that includes the required protection under
Sec. 154.1110 (a), (b), and (c).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]

                    Firefighting System: Dry Chemical



Sec. 154.1140  Dry chemical system: General.

    Each liquefied flammable gas carrier must have a dry chemical
firefighting system that meets Sec. Sec. 154.1145 through 154.1170,
Part 56 and Subpart 162.039 of this chapter.



Sec. 154.1145  Dry chemical supply.

    (a) A vessel with a cargo carrying capacity less that 1000 m\3\
(35,300 ft.\3\) must have at least one self-contained dry chemical
storage unit for the cargo area with an independent inert gas
pressurizing source adjacent to each unit.
    (b) A vessel with a cargo carrying capacity of 1000 m\3\ (35,300
ft.\3\) or more must have at least two self-contained dry chemical
storage units for the

[[Page 311]]

cargo area with an independent inert gas pressurizing source adjacent to
each unit.
    (c) A vessel with bow and stern loading and discharge areas must
have at least one self-contained dry chemical storage unit with an
independent inert gas pressurizing source adjacent to the unit for each
area.
    (d) Each dry chemical storage unit and associated piping must be
designed for:
    (1) Sequential discharge of each hose line and each monitor for 45
seconds; and
    (2) Simultaneous discharge of all hose lines and monitors for 45
seconds.
    (e) Each fully charged dry chemical storage unit must have the
greater of the following:
    (1) Enough dry chemical to provide for sequential discharge of each
attached hose and monitor for 45 seconds.
    (2) Enough dry chemical to provide for simultaneous discharge of all
attached hoses and monitors for 45 seconds.



Sec. 154.1150  Distribution of dry chemical.

    (a) All locations on the above deck cargo area and the cargo piping
outside that cargo area must be protected by:
    (1) At least two dry chemical hand hose lines; or
    (2) At least one dry chemical hand hose line and one dry chemical
monitor.
    (b) At least one dry chemical storage unit and hand hose line or
monitor must be at the after end of the cargo areas.
    (c) Each cargo loading and discharge manifold must be protected by
at least one dry chemical monitor.



Sec. 154.1155  Hand hose line: Coverage.

    The coverage for the area for a hand hose line under Sec. 154.1150
must not exceed the length of the hand hose line except the coverage for
the protection of areas that are inaccessible to personnel must not
exceed one-half the projection of the hose at its rated discharge, or 10
m (32.8 ft.), whichever is less.



Sec. 154.1160  Monitor coverage of system.

    The coverage of each dry chemical system monitor under Sec.
154.1150 must not exceed:
    (a) 10 m (32.8 ft.) at 10 kg/sec (22 lb/sec);
    (b) 30 m (98.4 ft.) at 25 kg/sec (55 lb/sec);
    (c) 40 m (131.2 ft.) at 45 kg/sec (99 lb/sec);
    (d) An interpolation between 10 m (32.8 ft.) at 10 kg/sec (22 lb/
sec) and 30 m (98.4 ft.) at 25 kg/sec (55 lb/sec); or
    (e) An interpolation between 30 m (98.4 ft.) at 25 kg/sec (55 lb/
sec) and 40 m (131.2 ft.) at 45 kg/sec (99 lb/sec).



Sec. 154.1165  Controls.

    (a) Each dry chemical hand hose line must be one that can be
actuated at its hose reel or hose storage cabinet.
    (b) Each dry chemical monitor must be one that can be actuated and
controlled at the monitor.
    (c) A dry chemical monitor for the cargo loading and discharging
manifold areas must be one that can be:
    (1) Actuated from a location other than the monitor and manifold
area; and
    (2) Except for pre-aimed monitors, controlled from a location other
than the monitor and manifold area.
    (d) Each dry chemical storage unit must have independent piping with
a stop valve in the piping for each remote hand hose line and remote
monitor where the piping connects to the storage container, if the unit
has:
    (1) More than one hand hose line;
    (2) More than one monitor; or
    (3) A combination of hand hose lines and monitors.
    (e) Each stop valve under paragraph (d) of the section must be
capable of:
    (1) Manual operation; and
    (2) Being opened from the hose reel or monitor to which it is
connected.
    (f) Damage to any dry chemical system hose, monitor, pipe or control
circuits must not prevent the operation of other hoses, monitors, or
control circuit that are connected to the same storage unit.



Sec. 154.1170  Hand hose line: General.

    Each dry chemical hand hose line must:
    (a) Not be longer than 33m (108 ft.);

[[Page 312]]

    (b) Be stored on a hose reel or in a hose cabinet and be one that is
operable whether or not it is unwound from a hose reel or removed from a
hose cabinet;
    (c) Be non-kinkable;
    (d) Have a nozzle with a valve to start and stop the flow of
chemical;
    (e) Have a capacity of at least 3.5 kg/sec (7.7 lb./sec); and
    (f) Be one that can be operated by one person.

                Cargo Area: Mechanical Ventilation System



Sec. 154.1200  Mechanical ventilation system: General.

    (a) Each cargo compressor room, pump room, gas-dangerous cargo
control station, and space that contains cargo handling equipment must
have a fixed, exhaust-type mechanical ventilation system.
    (b) The following must have a supply-type mechanical ventilation
system:
    (1) Each space that contains electric motors for cargo handling
equipment.
    (2) Each gas-safe cargo control station in the cargo area.
    (3) Each gas-safe space in the cargo area.
    (4) Each space that contains inert gas generators, except main
machinery spaces.



Sec. 154.1205  Mechanical ventilation system: Standards.

    (a) Each exhaust type mechanical ventilation system required under
Sec. 154.1200 (a) must have ducts for vapors from the following:
    (1) The deck level.
    (2) Bilges.
    (3) If the vapors are lighter than air, the top of each space that
personnel enter during cargo handling operations.
    (b) The discharge end of each duct under paragraph (a) of this
section must be at least 10 m (32.8 ft.) from ventilation intakes and
openings to accommodations, service, control station, and other gas-safe
spaces.
    (c) Each ventilation system under Sec. 154.1200 (a) and (b)(1) must
change the air in that space and its adjoining trunks at least 30 times
each hour.
    (d) Each ventilation system for a gas-safe cargo control station in
the cargo area must change the air in that space at least eight times
each hour.
    (e) A ventilation system must not recycle vapor from ventilation
discharges.
    (f) Each mechanical ventilation system must have its operational
controls outside the ventilated space.
    (g) No ventilation duct for a gas-dangerous space may pass through
any machinery, accommodation, service, or control space, except as
allowed under Sec. 154.703.
    (h) Each electric motor that drives a ventilation fan must not be
within the ducts for any space that may contain flammable cargo vapors.
    (i) Ventilation impellers and the housing in way of those impellers
on a flammable cargo carrier must meet one of the following:
    (1) The impeller, housing, or both made of non-metallic material
that does not generate static electricity.
    (2) The impeller and housing made of non-ferrous material.
    (3) The impeller and housing made of austenitic stainless steel.
    (4) The impeller and housing made of ferrous material with at least
13mm (0.512 in.) tip clearance.
    (j) No ventilation fan may have any combination of fixed or rotating
components made of an aluminum or magnesium alloy and ferrous fixed or
rotating components.
    (k) Each ventilation intake and exhaust must have a protective metal
screen of not more than 13mm (0.512 in.) square mesh.



Sec. 154.1210  Hold space, void space, cofferdam, and spaces containing
cargo piping.

    (a) Each hold space, void space, cofferdam, and spaces containing
cargo piping must have:
    (1) A fixed mechanical ventilation system; or
    (2) A fixed ducting system that has a portable blower that meets
Sec. 154.1205(i) and (j).
    (b) A portable blower in any personnel access opening must not
reduce the area of that opening so that the opening does not meet Sec.
154.340.

[[Page 313]]

                             Instrumentation



Sec. 154.1300  Liquid level gauging system: General.

    (a) If Table 4 lists a closed gauge for a cargo, the liquid level
gauging system under Sec. 154.1305 must be closed gauges that do not
have any opening through which cargo liquid or vapor could escape, such
as an ultrasonic device, float type device, electronic or magnetic
probe, or bubble tube indicator.
    (b) If Table 4 lists a restricted gauge for a cargo, the liquid
level gauging system under Sec. 154.1305 must be closed gauges that
meet paragraph (a) of this section or restricted gauges that do not vent
the cargo tank's vapor space, such as a fixed tube, slip tube, or rotary
tube.



Sec. 154.1305  Liquid level gauging system: Standards.

    (a) Each cargo tank must have at least one liquid level gauging
system that is operable:
    (1) At pressures up to, and including, the MARVS of the tank; and
    (2) At temperatures that are within the cargo handling temperature
range for all cargoes carried.
    (b) Unless the cargo tank has one liquid gauging system that can be
repaired and maintained when the tank contains cargo, each cargo tank
must have at least two liquid level gauging systems that meet paragraph
(a) of this section.
    (c) Each liquid level gauging system must measure liquid levels from
400 mm (16 in.) or less from the lowest point in the cargo tank, except
collection wells, to 100 percent full.



Sec. 154.1310  Closed gauge shut-off valve.

    Each closed gauge that is not mounted directly on the cargo tank
must have a shut-off valve that is as close to the tank as practical.



Sec. 154.1315  Restricted gauge excess flow valve.

    Each restricted gauge that penetrates a cargo tank must have an
excess flow valve unless the gauge meets Sec. 154.536.



Sec. 154.1320  Sighting ports, tubular gauge glasses, and flat plate
type gauge glasses.

    (a) Cargo tanks may have sighting ports as a secondary means of
liquid level gauging in addition to the gauges under Sec. 154.1305, if:
    (1) The tank has a MARVS that is less than 69 kPa gauge (10 psig);
    (2) The port has a protective cover and an internal scale; and
    (3) The port is above the liquid level.
    (b) Tubular gauge glasses must not be liquid level gauges for cargo
tanks.
    (c) Plate type gauge glasses must not be liquid level gauges for
cargo tanks, except deck tanks if the gauge connections have excess flow
valves.



Sec. 154.1325  Liquid level alarm system: All cargo tanks.

    Except as allowed under Sec. 154.1330, each cargo tank must have a
high liquid level alarm system that:
    (a) Is independent of the liquid level gauging system under Sec.
154.1305;
    (b) Actuates quick-closing valves under Sec. Sec. 154.530, 154.532,
and 154,538 or a stop valve in the cargo tank loading line to prevent
the tank from becoming 100 percent liquid full and without causing the
pressure in the loading lines to exceed the design pressure; and
    (c) Actuates an audible and visual alarm at the cargo control
station at the liquid level at which the valves under paragraph (b) of
this section are actuated or at some lower liquid level.



Sec. 154.1330  Liquid level alarm system: Independent tank type C.

    Independent tanks type C need not have the high liquid level alarm
system under Sec. 154.1325 if:
    (a) The tank volume is less than 200 m\3\ (7,060 ft.\3\); or
    (b) The tank can withstand the maximum possible pressure during
loading, that pressure is below the relief valve setting, and overflow
of the tank cannot occur.



Sec. 154.1335  Pressure and vacuum protection.

    (a) Each cargo tank must have the following:
    (1) A pressure gauge that:
    (i) Monitors the vapor space;
    (ii) Is readable at the tank; and

[[Page 314]]

    (iii) Has remote readouts at the cargo control station.
    (2) If vacuum protection is required under Sec. 154.804, a vacuum
gauge meeting paragraphs (a)(1)(i), (a)(1)(ii), and (a)(1)(iii) of this
section.
    (b) The vessel must have at least one high pressure alarm that:
    (1) Actuates before the pressure in any cargo tank exceeds the
maximum pressure specially approved by the Commandant (CG-OES); and
    (2) Actuates an audible and visual alarm at the cargo control
station, and a remote group alarm in the wheelhouse.
    (c) If vacuum protection is required under Sec. 154.804, the vessel
must have at least one low pressure alarm that:
    (1) Actuates before the pressure in any cargo tank falls below the
minimum pressure specially approved by the Commandant (CG-522); and
    (2) Actuates an audible and visual alarm at the cargo control
station, and a remote group alarm in the wheelhouse.
    (d) At least one pressure gauge must be fitted on each:
    (1) Enclosed hold;
    (2) Enclosed interbarrier space;
    (3) Cargo pump discharge line;
    (4) Liquid cargo manifold; and
    (5) Vapor cargo manifold.
    (e) There must be a local manifold pressure gauge between each
manifold stop valve and each hose connection to the shore.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1340  Temperature measuring devices.

    (a) Each cargo tank must have devices that measure the temperature:
    (1) At the bottom of the tank; and
    (2) Near the top of the tank and below the maximum liquid level
allowed under Sec. 154.1844.
    (b) Each device required by paragraph (a) must have a readout at the
cargo control station.
    (c) Except for independent tanks type C, each cargo containment
system for a design temperature colder than -55 [deg]C (-67 [deg]F) must
have temperature measuring devices that meet the following:
    (1) The number and location of the devices must be specially
approved by the Commandant (CG-OES).
    (2) The devices must be within the cargo tank's insulation or on the
adjacent hull structure.
    (3) Each device must show the temperature continuously or at regular
intervals of one hour or less.
    (4) Each device must actuate an audible and visual alarm at the
cargo control station and a remote group alarm in the wheelhouse before
the temperature of the steel of the adjacent hull structure is cooled
below the lowest temperature allowed for the steel under Sec. 154.172.
    (d) For each cargo tank with a design temperature colder than -55
[deg]C (-67 [deg]F), the number and arrangement of the devices that show
the temperature of the tank during cool down procedures must be
specially approved by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1345  Gas detection.

    (a) Each vessel carrying a cargo that is designated with an ``I'' or
``I and T'' in Table 4 must have:
    (1) A fixed flammable gas detection system that meets Sec.
154.1350; and
    (2) Two portable gas detectors that can each measure 0 to 100% of
the lower flammable limit of the cargo carried.
    (b) Each vessel carrying a cargo that is designated with a ``T'' or
``I and T'' in Table 4 must have:
    (1) Two portable gas detectors that show if the concentration of
cargo is above or below the threshold limit value listed in 29 CFR
1910.1000 for that cargo; and
    (2) Fixed gas sampling tubes in each hold space and interbarrier
space with:
    (i) The number of tubes specially approved by the Commandant (CG-
OES);
    (ii) Each tube valved and capped above the main deck unless it is
connected to a fixed toxic gas detector;
    (iii) If the vessel carries cargo that is heavier than the
atmosphere of the space, each tube's open end in the lower part of the
space;
    (iv) If the vessel carries cargo that is lighter than the atmosphere
of the

[[Page 315]]

space, each tube's open end in the upper part of the space;
    (v) If the vessel carries cargo that is heavier than the atmosphere
of the space and another cargo that is lighter than the atmosphere of
the space, tubes with their open ends in the lower part of the space and
tubes with their open ends in the upper part of the space; and
    (vi) If the vessel carries cargo that can be both heavier and
lighter than the atmosphere of the space, tubes with their open ends in
the lower part of the space and tubes with their open ends in the upper
part of the space.
    (c) A vessel that carries methyl bromide or sulfur dioxide must have
a fixed gas detection system that is not located in a gas-safe space.
    (d) A vessel that carries sulfur dioxide must have a fixed gas
detection system that meets Sec. 154.1350 except paragraph (j).
    (e) Each alarm under Sec. 154.1350(e) on a vessel that carries
methyl bromide or sulfur dioxide must be set at or below the threshold
limit value listed in 29 CFR 1910.1000 for the cargo carried.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1350  Flammable gas detection system.

    (a) The vessel must have a fixed flammable gas detection system that
has sampling points in:
    (1) Each cargo pump room;
    (2) Each cargo compressor room;
    (3) Each motor room for cargo handling machinery;
    (4) Each cargo control station that is not gas-safe;
    (5) Each hold space, interbarrier space, and other enclosed spaces,
except fuel oil or ballast tanks, in the cargo area, unless the vessel
has independent tanks type C; and
    (6) Each space between the doors of an air lock under Sec. 154.345.
    (b) The sampling points under paragraph (a) of this section must
meet Sec. 154.1345(b)(2) (iii) through (vi).
    (c) Gas sampling lines for the flammable gas detection system must
not pass through any gas-safe space, except the gas-safe space in which
the gas detection equipment is located.
    (d) Gas detection systems must have a readout with meters that show
flammable gas concentration over the concentration or volume ranges
under paragraph (t) or (u) of this section.
    (e) Each flammable gas detection system must have audible and visual
alarms that are actuated at a cargo concentration that is 30% or less of
the lower flammable limit in air of the cargo carried.
    (f) Each flammable gas detection system must have an audible and
visual alarm for power failure and loss of gas sampling flow.
    (g) The alarms under paragraphs (e) and (f) of this section must
signal in the space where the gas detection system's readout is located
and must meet Sec. 154.1365.
    (h) Remote group alarms, that indicate that one of the alarm
conditions under paragraphs (e) and (f) of this section exists, must
meet Sec. 154.1365 and must be in each wheelhouse and in each cargo
control station if the gas detection system's readout is not located in
those spaces.
    (i) Each flammable gas detection system must monitor each sampling
point at 30 minute or shorter intervals.
    (j) Electrical equipment for each flammable gas detection system
that is in a gas-dangerous space or area must meet Sec. Sec. 154.1000
through 154.1015.
    (k) Each flammable gas detection system must have enough flame
arrestors for all gas sampling lines to prevent flame propagation to the
spaces served by the system through the sampling lines.
    (l) Each flammable gas detection system must have a filter that
removes particulate matter in each gas sampling line.
    (m) Each filter under paragraph (l) of this section must be located
where it can be removed during vessel operation, unless it can be freed
by back pressure.
    (n) Each flammable gas detection system in a gas-safe space must:
    (1) Have a shut-off valve in each sampling line from an enclosed
space, such as a hold or interbarrier space; and
    (2) Exhaust gas to a safe location in the open atmosphere and away
from all ignition sources.

[[Page 316]]

    (o) Each flammable gas detection system must not have common
sampling lines, except sampling lines may be manifolded at the gas
detector location if each line has an automatic valve that prevents
cross-communication between sampling points.
    (p) Each flammable gas detection system must have at least one
connection for injecting zero gas and span gas into the system for
testing and calibration.
    (q) Each flammable gas detection system must have span gas for
testing and calibration that is of known concentration.
    (r) The calibration test procedure and type and concentration of
span gas under paragraph (q) of this section must be on or in each gas
analyzer cabinet.
    (s) Each flammable gas detection system must have at least one flow
meter capable of measuring the flow to the gas analyzer, and must
provide a means for ensuring that there is a positive flow in the right
direction in each sampling line at all times.
    (t) Each flammable gas detection system must measure gas
concentrations that:
    (1) Are at least 0% through 200% of the alarm concentration; and
    (2) Allow calibration of the equipment with span gas.
    (u) In each hold and each interbarrier space that contains tanks
other than independent tanks type A, B, or C, the flammable gas
detection system must measure cargo concentrations of 0 to 100% by
volume with:
    (1) An analyzer other than the one under paragraph (t) of this
section; or
    (2) The analyzer under paragraph (t) of this section with a scale
switch that automatically returns the analyzer to the concentration
range under paragraph (t) of this section when released.



Sec. 154.1360  Oxygen analyzer.

    The vessel must have a portable analyzer that measures oxygen levels
in an inert atmosphere.



Sec. 154.1365  Audible and visual alarms.

    (a) Each audible alarm must have an arrangement that allows it to be
turned off after sounding. For remote group alarms this arrangement must
not interrupt the alarm's actuation by other faults.
    (b) Each visual alarm must be one that can be turned off only after
the fault that actuated it is corrected.
    (c) Each visual alarm must be marked to show the type and, except
for remote group alarms, the location of each fault that actuates it.
    (d) Each vessel must have means for testing each alarm.



Sec. 154.1370  Pressure gauge and vacuum gauge marking.

    Each pressure gauge and vacuum gauge under Sec. 154.1335(a) must be
marked with the maximum and minimum pressures that are specified on the
vessel's certificate for the cargo carried.



Sec. 154.1375  Readout for temperature measuring device: Marking.

    Each readout under Sec. 154.1340 for a device that measures
temperature in a cargo tank must be marked with the design temperature
specified for the cargo tank on the vessel's certificate.

                            Safety Equipment



Sec. 154.1400  Safety equipment: All vessels.

    (a) Instead of the equipment under Sec. 35.30-20 of this chapter, a
vessel of less than 25,000 m\3\ cargo capacity must have the following
personnel safety equipment:
    (1) Six self-contained, pressure-demand-type, air-breathing
apparatus approved by the Mining Enforcement and Safety Administration
(MESA) or the National Institute for Occupational Safety and Health
(NIOSH), each having at least a 30 minute capacity.
    (2) Nine spare bottles of air for the self-contained air-breathing
apparatus, each having at least a 30 minute capacity.
    (3) Six steel-cored lifelines.
    (4) Six Type II or Type III flashlights constructed and marked in
accordance with ASTM F 1014 (incorporated by reference, see Sec.
154.1).
    (5) Three fire axes.
    (6) Six helmets that meet ANSI Safety Requirements for Industrial
Head Protection, Z-89.1 (1969).

[[Page 317]]

    (7) Six sets of boots and gloves that are made of rubber or other
electrically non-conductive material.
    (8) Six sets of goggles that meet the specifications of ANSI
Practice for Occupational and Educational Eye and Face Protection, Z-
87.1 (1979).
    (9) Three outfits that protect the skin from scalding steam and the
heat of a fire, and that have a water resistant outer surface.
    (10) Three chemical protective outfits that protect the wearers from
the particular personnel hazards presented by the cargo vapor.
    (b) Instead of the equipment under Sec. 35.30-20 of this chapter, a
vessel of 25,000 m\3\ cargo capacity or more must have the following
personnel safety equipment:
    (1) Eight self-contained, pressure-demand-type, air-breathing
apparatus approved by the Mining Enforcement and Safety Administration
(MESA) or the National Institute for Occupational Safety and Health
(NIOSH), each having at least a 30 minute capacity.
    (2) Nine spare bottles of air for the self-contained air-breathing
apparatus, each having at least a 30 minute capacity.
    (3) Eight steel-cored lifelines.
    (4) Eight Type II or Type III flashlights constructed and marked in
accordance with ASTM F 1014 (incorporated by reference, see Sec.
154.1).
    (5) Three fire axes.
    (6) Eight helmets that meet ANSI Safety Requirements for Industrial
Head Protection, Z-89.1 (1969).
    (7) Eight sets of boots and gloves that are made of rubber or other
electrically non-conductive material.
    (8) Eight sets of goggles that meet the specifications of ANSI
Practice for Occupational and Educational Eye and Face Protection, Z-
87.1 (1979).
    (9) Five outfits that protect the skin from scalding steam and the
heat of a fire, and that have a water resistant outer surface.
    (10) Three chemical protective outfits that protect the wearers from
the particular personnel hazards presented by the cargo vapor.
    (c) When Table 4 references this section, a vessel carrying the
listed cargo must have the following additional personnel protection
equipment:
    (1) Three self-contained, pressure-demand-type, air-breathing
apparatus approved by the Mining Enforcement and Safety Administration
(MESA) or the National Institute for Occupational Safety and Health
(NIOSH), each having at least a 30 minute capacity.
    (2) Nine spare bottles of air for the self-contained air-breathing
apparatus, each having at least a 30 minute capacity.
    (3) Three steel-cored lifelines.
    (4) Three Type II or Type III flashlights constructed and marked in
accordance with ASTM F 1014 (incorporated by reference, see Sec.
154.1).
    (5) Three helmets that meet ANSI Safety Requirements for Industrial
Head Protection, Z-89.1 (1969).
    (6) Three sets of boots and gloves that are made of rubber or other
electrically non-conductive material.
    (7) Three sets of goggles that meet the specifications of ANSI
Practice for Occupational and Educational Eye and Face Protection, Z-
87.1 (1979).
    (8) Three chemical protective outfits that protect the wearers from
the particular personnel hazards presented by the cargo vapor.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR
31630, Aug. 21, 1987; CGD 82-042, 17705, May 18, 1988; USCG-1999-5151,
64 FR 67183, Dec. 1, 1999]



Sec. 154.1405  Respiratory protection.

    When Table 4 references this section, a vessel carrying the listed
cargo must have:
    (a) Respiratory protection equipment for each person on board that
protects the person from the cargo vapor for at least 5 minutes; and
    (b) Two additional sets of respiratory protection equipment that:
    (1) Are stowed in the wheelhouse; and
    (2) Protects the wearer from the cargo vapor for at least 5 minutes.



Sec. 154.1410  Decontamination shower.

    When Table 4 references this section, a vessel carrying the listed
cargo must have a decontamination shower and an eye wash that:
    (a) Are on the weatherdeck; and
    (b) Have their location marked EMERGENCY SHOWER in letters:
    (1) 7.6 cm (3 in.) high; and
    (2) 5.1 cm (2 in.) wide.

[[Page 318]]



Sec. 154.1415  Air compressor.

    Each vessel must have an air compressor to recharge the bottles for
the air-breathing apparatus.



Sec. 154.1420  Stretchers and equipment.

    Each vessel must have:
    (a) Two stretchers or wire baskets; and
    (b) Equipment for lifting an injured person from a cargo tank, hold,
or void space.



Sec. 154.1430  Equipment locker.

    One of each item of equipment under Sec. Sec. 154.1400 and 154.1420
must be stowed in a marked locker:
    (a) On the open deck in or adjacent to the cargo area; or
    (b) In the accommodation house, near to a door that opens onto the
main deck.



Sec. 154.1435  Medical first aid guide.

    Each vessel must have a copy of the IMO Medical First Aid Guide for
Use in Accidents Involving Dangerous Goods, printed by IMO, London, U.K.



Sec. 154.1440  Antidotes.

    Each vessel must have the antidotes prescribed in the IMO Medical
First Aid Guide for Use in Accidents Involving Dangerous Goods, printed
by IMO, London, U.K. for the cargoes being carried.



           Subpart D_Special Design and Operating Requirements



Sec. 154.1700  Purpose.

    This subpart prescribes design and operating requirements that are
unique for certain cargoes regulated by this part.



Sec. 154.1702  Materials of construction.

    When Table 4 references one of the following paragraphs in this
section, the materials in the referenced paragraph must not be in
components that contact the cargo liquid or vapor:
    (a) Aluminum and aluminum bearing alloys.
    (b) Copper and copper bearing alloys.
    (c) Zinc or galvanized steel.
    (d) Magnesium.
    (e) Mercury.
    (f) Acetylide forming materials, such as copper, silver, and
mercury.



Sec. 154.1705  Independent tank type C.

    The following cargoes must be carried in an independent tank type C
that meets Sec. 154.701(a):
    (a) Ethylene oxide.
    (b) Methyl bromide.
    (c) Sulfur dioxide.



Sec. 154.1710  Exclusion of air from cargo tank vapor spaces.

    When a vessel is carrying acetaldehyde, butadiene, ethylene oxide,
or vinyl chloride, the master shall ensure that air is:
    (a) Purged from the cargo tanks and associated piping before the
cargo is loaded; and
    (b) Excluded after the cargo is loaded by maintaining a positive
pressure of at least 13.8 kPa gauge (2 psig) by:
    (1) Introducing a gas that:
    (i) Is not reactive;
    (ii) Is not flammable; and
    (iii) Does not contain more than 0.2% oxygen by volume; or
    (2) Controlling the cargo temperature.



Sec. 154.1715  Moisture control.

    When a vessel is carrying sulfur dioxide, the master shall ensure
that:
    (a) A cargo tank is dry before it is loaded with sulfur dioxide; and
    (b) Air or inert gas admitted into a cargo tank carrying sulfur
dioxide during discharging or tank breathing has a moisture content
equal to or less than the moisture content of air with a dew point of -
45 [deg]C (-49 [deg]F) at atmospheric pressure.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by USCG-2014-0688, 79
FR 58285, Sept. 29, 2014]



Sec. 154.1720  Indirect refrigeration.

    A refrigeration system that is used to cool acetaldehyde, ethylene
oxide, or methyl bromide, must be an indirect refrigeration system that
does not use vapor compression.



Sec. 154.1725  Ethylene oxide.

    (a) A vessel carrying ethylene oxide must:

[[Page 319]]

    (1) Have cargo piping, vent piping, and refrigeration equipment that
have no connections to other systems;
    (2) Have valves, flanges, fittings, and accessory equipment made of
steel, stainless steel, except types 416 and 442, or other material
specially approved by the Commandant (CG-OES);
    (3) Have valve disk faces, and other wearing parts of valves made of
stainless steel containing not less than 11% chromium;
    (4) Have gaskets constructed of spirally wound stainless steel with
Teflon or other material specially approved by the Commandant (CG-OES);
    (5) Not have asbestos, rubber, or cast iron components in the cargo
containment system and piping;
    (6) Not have threaded joints in cargo piping;
    (7) Have a water spray system under Sec. 154.1105 that protects the
above deck cargo piping; and
    (8) Have a nitrogen inerting system or on board nitrogen gas storage
that can inert the vapor space of an ethylene oxide cargo tank for a
period of 30 days under the condition of paragraph (e) of this section.
    (b) Cargo hose used for ethylene oxide must:
    (1) Be specially approved by the Commandant (CG-OES); and
    (2) Be marked ``For (Alkylene or Ethylene) Oxide Transfer Only.''
    (c) Ethylene oxide must be maintained at less than 30 [deg]C (86
[deg]F).
    (d) Cargo tank relief valves for tanks containing ethylene oxide
must be set at 539 kPa gauge (78.2 psig) or higher.
    (e) The vapor space of a cargo tank carrying ethylene oxide must be
maintained at a nitrogen concentration of 45% by volume.
    (f) A vessel must have a method for jettisoning ethylene oxide that
meets Sec. Sec. 154.356 and 154.1872.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983; USCG-2014-0688, 79 FR 58285, Sept. 29, 2014]



Sec. 154.1730  Ethylene oxide: Loading and off loading.

    (a) The master shall ensure that before ethylene oxide is loaded
into a cargo tank:
    (1) The tank is thoroughly clean, dry, and free of rust;
    (2) The hold spaces are inerted with an inert gas that meets Sec.
154.1710(b)(1); and
    (3) The cargo tank vapor space is inerted with nitrogen.
    (b) Ethylene oxide must be off loaded by a deepwell pump or inert
gas displacement.
    (c) Ethylene oxide must not be carried in deck tanks.



Sec. 154.1735  Methyl acetylene-propadiene mixture.

    (a) The composition of the methyl acetylene-propadiene mixture at
loading must be within the following limits or specially approved by the
Commandant (CG-OES):
    (1) One composition is:
    (i) Maximum methyl acetylene and propadiene molar ratio of 3 to 1;
    (ii) Maximum combined concentration of methyl acetylene and
propadiene of 65 mole percent;
    (iii) Minimum combined concentration of propane, butane, and
isobutane of 24 mole percent, of which at least one-third (on a molar
basis) must be butanes and one-third propane; and
    (iv) Maximum combined concentration of propylene and butadiene of 10
mole percent.
    (2) A second composition is:
    (i) Maximum methyl acetylene and propadiene combined concentration
of 30 mole percent;
    (ii) Maximum methyl acetylene concentration of 20 mole percent;
    (iii) Maximum propadiene concentration of 20 mole percent;
    (iv) Maximum propylene concentration of 45 mole percent;
    (v) Maximum butadiene and butylenes combined concentration of 2 mole
percent;
    (vi) A minimum saturated C 4 hydrocarbon concentration of
4 mole percent; and
    (vii) A minimum propane concentration of 25 mole percent.
    (b) A vessel carrying a methyl acetylene-propadiene mixture must
have a refrigeration system without vapor compression or have a
refrigeration system with the following features:
    (1) A vapor compressor that does not raise the temperature and
pressure of

[[Page 320]]

the vapor above 60 [deg]C (140 [deg]F) and 1.72 MPa gauge (250 psig)
during its operation and that does not allow vapor to stagnate in the
compressor while it continues to run.
    (2) Discharge piping from each compressor stage or each cylinder in
the same stage of a reciprocating compressor that has:
    (i) Two temperature actuated shutdown switches set to operate at 60
[deg]C (140 [deg]F) or less;
    (ii) A pressure actuated shutdown switch set to operate at 1.72 MPa
gauge (250 psig) or less; and
    (iii) A safety relief valve set to relieve at 1.77 MPa gauge (256
psig) or less.
    (3) A relief valve that vents to a mast meeting Sec. 154.805 and
that does not relieve into the compressor suction line.
    (4) An alarm that sounds in the cargo control station and in the
wheelhouse when any of the high pressure or high temperature switches
under paragraphs (b)(2)(i) and (b)(2)(ii) of this section operate.
    (c) A vessel carrying a methyl acetylene-propadiene mixture must
have separate cargo piping, vent piping, and refrigeration equipment for
methyl acetylene-propadiene that are segregated from other cargo piping,
vent piping and refrigeration equipment on the vessel.

[CGD 74-289, 44 FR 26009, May 3, 1979; 44 FR 59234, Oct. 15, 1979; CGD
82-063b, 48 FR 4782, Feb. 3, 1983]



Sec. 154.1740  Vinyl chloride: Inhibiting and inerting.

    When a vessel is carrying vinyl chloride, the master shall ensure
that:
    (a) Section 154.1818 is met; or
    (b) Section 154.1710 is met, and the oxygen content of inert gas is
less than 0.1% by volume.



Sec. 154.1745  Vinyl chloride: Transferring operations.

    A vessel carrying vinyl chloride must meet the requirements of Sec.
151.50-34(g) through (k) of this chapter.

[CGD 95-012, 60 FR 48051, Sept. 18, 1995]



Sec. 154.1750  Butadiene or vinyl chloride: Refrigeration system.

    A refrigeration system for butadiene or vinyl chloride must not use
vapor compression unless it:
    (a) Avoids any stagnation points where uninhibited liquid can
accumulate; or
    (b) Has inhibited liquid from the cargo tank added to the vapor
upstream of the condenser.



Sec. 154.1755  Nitrogen.

    Except for deck tanks and their piping systems, cargo containment
systems and piping systems carrying nitrogen must be specially approved
by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1760  Liquid ammonia.

    The master shall ensure that no person sprays liquid ammonia into a
cargo tank containing more than 8% oxygen by volume.



                          Subpart E_Operations



Sec. 154.1800  Special operating requirements under Part 35 of this
chapter.

    Each vessel must meet the requirements of Part 35 of this chapter
except Sec. 35.30-20.



Sec. 154.1801  Certificates, letters, and endorsements: U.S. flag vessels.

    No person may operate a U.S. flag vessel unless the vessel has a
Certificate of Inspection, issued under Subchapter D of this chapter,
which is endorsed with the name of the cargo that it is allowed to
carry.



Sec. 154.1802  Certificates, letters and endorsements: Foreign flag
vessels.

    (a) No person may operate on the navigable waters of the United
States a foreign flag vessel, whose flag administration issues IMO
Certificates, unless the vessel has:
    (1) An IMO Certificate issued by the flag administration that is
endorsed with the name of the cargo that it is

[[Page 321]]

allowed to carry, and, except when entering United States waters to be
examined as required by Sec. 154.150, a Certificate of Compliance \1\
issued by the Coast Guard endorsed under this part with the name of the
cargo that it is allowed to carry; or
    (2) Special approval under Sec. 154.30.
    (b) No person may operate on the navigable waters of the United
States a foreign flag vessel, whose flag administration does not issue
IMO Certificates, unless the vessel has:
    (1) Except when entering United States waters to be examined as
required by Sec. 154.150, a Certificate of Compliance \1\ issued by the
Coast Guard endorsed under this part with the name of the cargo it is
allowed to carry; or
---------------------------------------------------------------------------

    \1\ Until the Certificate of Compliance form is developed, the
Letter of Compliance with a Subchapter O endorsement for the carriage of
liquefied gases will serve the purpose of the endorsed Certificate of
Compliance.
---------------------------------------------------------------------------

    (2) Special approval under Sec. 154.30.
    (c) No person may operate on the navigable waters of the United
States a foreign flag vessel unless the vessel has onboard the following
plans and information which except for the certificates under paragraph
(c)(1) of this section, are in English:
    (1) The vessel's Cargo Ship Safety Construction Certificate and
Cargo Ship Safety Equipment Certificate issued under the International
Convention for Safety of Life at Sea, 1974.
    (2) A description and schematic plan of the arrangement for inerting
cargo tanks, hold spaces, and interbarrier spaces.
    (3) A description of the cargo tank gauging equipment.
    (4) A description and instruction manual for the calibration of the
cargo leak detector equipment.
    (5) A schematic plan that shows the locations of leak detectors and
sampling points.
    (6) If the vessel carries methane, a description of the systems for
cargo temperature and pressure control. (See Sec. Sec. 154.703 through
154.709).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 81-052, 50 FR
8735, Mar. 5, 1985; CGD 77-069, 52 FR 31631, Aug. 21, 1987; CGD 90-008,
55 FR 30663, July 26, 1990]



Sec. 154.1803  Expiration of Certificates of Compliance.

    (a) A Certificate of Compliance expires after a period not to exceed
twenty-four months from the date of the examination under Sec. 154.150.
    (b) If a vessel's IMO Certificate of Fitness expires or otherwise
becomes invalid, its Certificate of Compliance becomes invalid for the
carriage of cargoes listed in Table 4 of this part or authorized by
special approval under Sec. 154.12. To maintain the validity of the
Certificate of Compliance, the vessel's owner must submit a copy of any
revised or reissued IMO Certificate to Commanding Officer, Marine Safety
Center.

[CGD 81-052, 50 FR 8735, Mar. 5, 1985; CGD 95-072, 60 FR 50466, Sept.
29, 1995; 60 FR 54106, Oct. 19, 1995]



Sec. 154.1804  Document posted in wheelhouse.

    No person may operate a U.S. flag vessel unless the documents under
Sec. 154.1801 are under glass in a conspicuous place in the wheelhouse.



Sec. 154.1806  Regulations on board.

    No person may operate a U.S. flag vessel unless a copy of this part
and a copy of Part 35 of this chapter are on board.



Sec. 154.1808  Limitations in the endorsement.

    No person may operate a vessel unless that person complies with all
limitations in the endorsement on the vessel's Certificate of Inspection
or Certificate of Compliance.

[CGD 81-052, 50 FR 8735, Mar. 5, 1985]



Sec. 154.1809  Loading and stability manual.

    (a) No person may operate a vessel unless that vessel has on board a
loading and stability manual.
    (b) The loading and stability manual must contain:
    (1) Information that enables the master to load and ballast the
vessel while keeping structural stresses within design limits; and

[[Page 322]]

    (2) The information required by Sec. 170.110 of this chapter.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 79-023, 49 FR
51010, Nov. 4, 1983]



Sec. 154.1810  Cargo manual.

    (a) No person may operate a foreign flag vessel, whose flag
administration does not issue IMO Certificates, on the navigable waters
of the United States, or a U.S. flag vessel, unless the vessel has on
board a cargo manual containing the following information:
    (1) A description of each cargo carried, its handling hazards as a
liquid or as a gas including frostbite or asphyxiation, its safety
equipment and necessary first aid measures required by this part.
    (2) A description of the dangers of asphyxiation from the inerting
gases used on the vessel.
    (3) The measures that mitigate embrittlement of steel structure in
way of cargo leakage.
    (4) The use of the firefighting systems on the vessel.
    (5) The features of the cargo containment system that affect its
operation and maintenance, including pressure and temperature ranges and
relief valve settings.
    (6) Pressures, temperatures, and liquid levels for all operations.
    (7) General information derived from the first loading of the
vessel.
    (8) Alarm settings.
    (9) Descriptions of the components of the cargo system, including
the following:
    (i) Liquid cargo system.
    (ii) Liquid recirculating or condensate return system.
    (iii) Cargo tank cool-down system.
    (iv) Cargo tank warm-up or vaporization system.
    (v) Gas main system.
    (vi) Cargo tank or compressor relief system and blocked liquid or
gas relief system.
    (vii) Inerting system.
    (viii) Boil-off gas compressor or reliquefaction system.
    (ix) Gas detection systems.
    (x) Alarm or safety indication systems.
    (xi) Cargo jettisoning system.
    (xii) The system for using boil-off gas as fuel.
    (10) A description of cargo loading and discharge operations,
including simultaneous handling of multigrades of cargo and ballast.
    (11) A description of cargo operations during the voyage.
    (12) A description of cargo tank cool-down and warm-up operations
including purging with inert gas and air.
    (13) A description of hull and cargo tank temperature monitoring
systems.
    (14) A description of gas detection systems and alarm or safety
systems.
    (15) A description of the following conditions and their symptoms,
including emergency measures and corrective actions:
    (i) Cargo or ballast valve malfunction.
    (ii) Low cargo tank gas pressure.
    (iii) High fill level shutdown.
    (iv) Gas compressor shutdown.
    (v) Hull cold spots.
    (vi) Cargo piping leaks.
    (vii) Primary or secondary barrier failure.
    (viii) Hold boundary structural failure.
    (ix) Fire in vent mast head.
    (x) Reliquefaction plant failure.
    (xi) Vaporizer malfunction or failure.
    (xii) Piping or cargo valve freeze-up.
    (16) Any other matters relating to operation of the cargo systems.
    (17) The operational means to maintain the vessel in a condition of
positive stability in accordance with the loading and stability manual
under Sec. 154.1809 through all conditions of:
    (i) Loading and deballasting; and
    (ii) Unloading and ballasting.
    (b) The master shall ensure that the cargo manual is kept up-to-
date.



Sec. 154.1812  Operational information for terminal personnel.

    The master shall ensure that terminal personnel are told the
operational information required by Sec. 154.1810(a)(17).



Sec. 154.1814  Cargo information cards.

    (a) No person may operate a vessel unless a cargo information card
for each cargo being transported is carried either in the wheelhouse, in
the ship's

[[Page 323]]

office, or in another location easily accessible to the person in charge
of the watch.
    (b) When a vessel is moored at a terminal, the master shall ensure
that a set of information cards is in the possession of the terminal's
person in charge of cargo transfer operations.
    (c) Each card must be at least 17 cm x 24 cm (6\3/4\ in. x 9\1/2\
in.), have printing on one side only, and must contain the following
information about the cargo:
    (1) Name as listed in Table 4.
    (2) Appearance.
    (3) Odor.
    (4) Safe handling procedures, including special handling
instructions, and handling hazards.
    (5) Procedures to follow in the event of spills, leaks, or
uncontrolled cargo release.
    (6) Procedures to be followed if a person is exposed to the cargo.
    (7) Firefighting procedures and materials.



Sec. 154.1816  Cargo location plan.

    The master shall ensure that:
    (a) A cargo location plan is prepared that gives:
    (1) The location and number of each cargo tank; and
    (2) The name of the cargo in each tank;
    (b) One cargo location plan is kept with the sets of cargo
information cards required under Sec. 154.1814; and
    (c) The cargo names in the cargo location plan do not differ from
the names of the cargoes listed in Table 4.



Sec. 154.1818  Certification of inhibition.

    (a) Except as provided in Sec. 154.1740(b), no person may operate a
vessel carrying butadiene or vinyl chloride without carrying in the
wheelhouse written certification from the shipper that the product is
inhibited.
    (b) The certification required by this section must contain the
following information:
    (1) The name and concentration of the inhibitor.
    (2) The date the inhibitor was added.
    (3) The expected duration of the inhibitor's effectiveness.
    (4) Any temperature limitations qualifying the inhibitor's effective
lifetime.
    (5) The action to be taken if the time of the voyage exceeds the
inhibitor's lifetime.



Sec. 154.1820  Shipping document.

    No person may operate a vessel without carrying a shipping document
in the wheelhouse that lists for each cargo on board:
    (a) The cargo tank in which the cargo is stowed;
    (b) The name of the shipper;
    (c) The location of the loading terminal;
    (d) The cargo name as listed in Table 4; and
    (e) The approximate quantity of the cargo.



Sec. 154.1822  Shipping document: Copy for transfer terminal.

    While a vessel is moored at a transfer terminal, the master shall
ensure that at least one copy of the shipping document is given to the
terminal's person in charge of cargo transfer.



Sec. 154.1824  Obstruction of pumproom ladderways.

    The master shall ensure that each cargo pumproom access is
unobstructed.



Sec. 154.1826  Opening of cargo tanks and cargo sampling.

    (a) The master shall ensure that each cargo tank opening is fully
closed at all times.
    (b) The master may authorize the opening of a cargo tank:
    (1) During tank cleaning; and
    (2) To sample a cargo that Table 4 allows to be carried in a
containment system having a restricted gauging system if:
    (i) The cargo tank is not being filled during sampling;
    (ii) The vent system has relieved any pressure in the tank; and
    (iii) The person sampling the cargo wears protective clothing.
    (c) The master shall ensure that cargoes requiring closed gauging as
listed in Table 4 are sampled only through the controlled sampling
arrangement of the cargo tank.

[[Page 324]]



Sec. 154.1828  Spaces containing cargo vapor: Entry.

    (a) No person may enter a cargo handling space without the
permission of the master or without following a safety procedure
established by the master.
    (b) Before allowing anyone to enter a cargo handling space, the
master shall ensure that:
    (1) The space is free of toxic vapors and has an oxygen
concentration of at least 19.5 percent oxygen by volume; or
    (2) Those entering the space wear protective equipment with
breathing apparatus and an officer closely supervises the entire
operation in the space.



Sec. 154.1830  Warning sign.

    (a) The master shall ensure that a vessel transferring cargo, while
fast to a dock or while at anchor in port, displays a warning sign:
    (1) At the gangway facing the shore so that the sign may be seen
from the shore; and
    (2) Facing outboard towards the water so that the sign may be seen
from the water.
    (b) Except as provided in paragraph (e) of this section, each
warning sign must have the following words:
    (1) Warning.
    (2) Dangerous Cargo.
    (3) No Visitors.
    (4) No Smoking.
    (5) No Open Lights.
    (c) Each letter in the words on the sign must:
    (1) Be block style;
    (2) Be black on a white background;
    (3) Be 7.6 cm (3 in.) high;
    (4) Be 5.1 cm (2 in.) wide, except for ``M'' and ``W'' which must be
7.6 cm (3 in.) wide, and the letter ``I'' which may be 1.3 cm (\1/2\
in.) wide; and
    (5) Have 1.3 cm (\1/2\ in.) stroke width.
    (d) The spacing between letters must be:
    (1) 1.3 cm (\1/2\ in.) between letters of the same word on the sign;
    (2) 5.1 cm (2 in.) between words;
    (3) 5.1 cm (2 in.) between lines; and
    (4) 5.1 cm (2 in.) at the borders of the sign.
    (e) The words ``No Smoking'' and ``No Open Lights'' may be omitted
when the cargoes on board a vessel are not flammable.
    (f) When a vessel carries or transfers vinyl chloride, the warning
sign under paragraph (b) of this section must also have the words
``Cancer Suspect Agent.''



Sec. 154.1831  Persons in charge of transferring liquid cargo in bulk
or preparing cargo tanks.

    (a) The owner and operator of the vessel, and his or her agent, and
each of them, shall ensure that--
    (1) Enough ``Tankerman-PICs'' or restricted ``Tankerman-PICs'', and
``Tankerman-Assistants'', authorized for the classification of cargo
carried, are on duty to safely conduct a transfer of liquid cargo in
bulk or a cool-down, warm-up, gas-free, or air-out of each cargo tank;
    (2) Each transfer of liquid cargo in bulk, and each cool-down, warm-
up, gas-free, or air-out of a cargo tank, is supervised by a person
designated as a person in charge of the transfer that possesses the
qualifications required by 33 CFR 155.710;
    (3) On each foreign tankship, the person in charge of either a
transfer of liquid cargo in bulk or a cool-down, warm-up, gas-free, or
air-out of a cargo tank possesses the qualifications required by 33 CFR
155.710;
    (4) When cargo regulated under this part is being transferred, the
person in charge of the transfer has received special training in the
particular hazards associated with the cargo and in all special
procedures for its handling; and
    (5) On each foreign vessel, the person in charge understands his or
her responsibilities as described in this subchapter.
    (b) Upon request by the Officer in Charge, Marine Inspection, in
whose zone the transfer will take place, the owner and operator of the
vessel, and his or her agent, and each of them, shall provide
documentary evidence that the person in charge has received the training
specified by paragraph (a)(4) of this section and is capable of
competently performing the procedures necessary for the cargo.

[CGD 79-116, 60 FR 17158, Apr. 4, 1995]

[[Page 325]]



Sec. 154.1834  Cargo transfer piping.

    The person in charge of cargo transfer shall ensure that cargo is
transferred to or from a cargo tank only through the cargo piping
system.



Sec. 154.1836  Vapor venting as a means of cargo tank pressure and
temperature control.

    When the vessel is on the navigable waters of the United States, the
master shall ensure that the cargo pressure and temperature control
system under Sec. Sec. 154.701 through 154.709 is operating and that
venting of cargo is unnecessary to maintain cargo temperature and
pressure control, except under emergency conditions.



Sec. 154.1838  Discharge by gas pressurization.

    The person in charge of cargo transfer may not authorize cargo
discharge by gas pressurization unless:
    (a) The tank to be offloaded is an independent tank type B or C;
    (b) The pressurizing medium is the cargo vapor or a nonflammable,
nontoxic gas that is inert with the cargo; and
    (c) The pressurizing line has:
    (1) A pressure reducing valve that has a setting that is 90 percent
or less of the tank's relief valve setting; and
    (2) A manual control valve between the pressure reducing valve and
the tank.



Sec. 154.1840  Protective clothing.

    The person in charge of cargo transfer shall ensure that each person
involved in a cargo transfer operation, except those assigned to gas-
safe cargo control rooms, wears protective clothing.



Sec. 154.1842  Cargo system: Controls and alarms.

    The master shall ensure that the cargo emergency shut-down system
and the alarms under Sec. 154.1325 are tested and working before cargo
is transferred.



Sec. 154.1844  Cargo tanks: Filling limits.

    (a) Unless a higher limit is specified on the certificate the master
shall ensure that a cargo tank is not loaded:
    (1) More than 98 percent liquid full; or
    (2) In excess of the volume determined under the following formula:
    [GRAPHIC] [TIFF OMITTED] TC02FE91.089

where:

VL=maximum volume to which the tank may be loaded;
V=volume of the tank;
dr=density at the reference temperature specified in
          paragraph (b) of this section; and
dL=density of the cargo at the loading temperature and
          pressure.

    (b) The reference temperature to be used in paragraph (a)(2) of this
section is the temperature corresponding to the vapor pressure of the
cargo at the set pressure of the pressure relief valves.



Sec. 154.1846  Relief valves: Changing set pressure.

    The master shall:
    (a) Supervise the changing of the set pressure of relief valves
under Sec. 154.802(b);
    (b) Enter the change of set pressure in the vessel's log; and
    (c) Ensure that a sign showing the set pressure is posted:
    (1) In the cargo control room or station; and
    (2) At each relief valve.



Sec. 154.1848  Inerting.

    (a) The master shall ensure that:
    (1) Hold and interbarrier spaces on a vessel with full secondary
barriers are inerted so that the oxygen concentration is 8 percent or
less by volume when flammable cargoes are carried;
    (2) Hold and interbarrier spaces contain only dry air or inert gas
on:
    (i) A vessel with partial secondary barriers;
    (ii) A vessel with full secondary barriers when non-flammable
cargoes are carried; and
    (iii) A vessel with refrigerated independent tanks type C;
    (3) When cargo tanks containing flammable vapor are to be gas freed,
the flammable vapors are purged from the tank by inert gas before air is
admitted; and

[[Page 326]]

    (4) When gas free cargo tanks are to be filled with a flammable
cargo, air is purged from the tank by inert gas until the oxygen
concentration in the tank is 8 percent or less by volume before cargo
liquid or vapor is introduced.
    (b) Inert gas must be supplied from the shore or from the vessel's
inert gas system.



Sec. 154.1850  Entering cargo handling spaces.

    (a) The master shall ensure that the ventilation system under Sec.
154.1200 is in operation for 30 minutes before a person enters one of
the following:
    (1) Spaces containing cargo pumps, compressors, and compressor
motors.
    (2) Gas-dangerous cargo control spaces.
    (3) Other spaces containing cargo handling equipment.
    (b) The master shall ensure that a warning sign listing the
requirement for use of the ventilation system, is posted outside of each
space under paragraph (a) of this section.
    (c) The master shall ensure that no sources of ignition are put in a
cargo handling space on a vessel carrying flammable cargo unless the
space is gas free.



Sec. 154.1852  Air breathing equipment.

    (a) The master shall ensure that a licensed officer inspects the
compressed air breathing equipment at least once each month.
    (b) The master shall enter in the vessel's log a record of the
inspection required under paragraph (a) of this section that includes:
    (1) The date of the inspection; and
    (2) The condition of the equipment at the time of the inspection.



Sec. 154.1854  Methane (LNG) as fuel.

    (a) If methane (LNG) vapors are used as fuel in the main propulsion
system of a vessel, the master shall ensure that the fuel oil fired
pilot under Sec. 154.705(c) is used when the vessel is on the navigable
waters of the United States.
    (b) When the methane (LNG) fuel supply is shut down due to loss of
ventilation or detection of gas, the master shall ensure that the
methane (LNG) fuel supply is not used until the leak or other cause of
the shutdown is found and corrected.
    (c) The master shall ensure that the required procedure under
paragraph (b) of this section is posted in the main machinery space.
    (d) The master shall ensure that the oxygen concentration in the
annular space of the fuel line under Sec. 154.706(a)(1) is 8% or less
by volume before methane (LNG) vapors are admitted to the fuel line.



Sec. 154.1858  Cargo hose.

    The person in charge of cargo transfer shall ensure that cargo hose
used for cargo transfer service meets Sec. Sec. 154.552 through
154.562.



Sec. 154.1860  Integral tanks: Cargo colder than -10 [deg]C (14 [deg]F).

    The master shall ensure that an integral tank does not carry a cargo
colder than -10 [deg]C (14 [deg]F) unless that carriage is specially
approved by the Commandant (CG-OES).

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



Sec. 154.1862  Posting of speed reduction.

    If a speed reduction is specially approved by the Commandant under
Sec. 154.409, the master shall ensure that the speed reduction is
posted in the wheelhouse.



Sec. 154.1864  Vessel speed within speed reduction.

    The master shall ensure that the speed of the vessel is not greater
than the posted speed reduction.



Sec. 154.1866  Cargo hose connection: Transferring cargo.

    No person may transfer cargo through a cargo hose connection unless
the connection has the remotely controlled quick closing shut off valve
required under Sec. 154.538.



Sec. 154.1868  Portable blowers in personnel access openings.

    The master shall ensure that a portable blower in a personnel access
opening does not reduce the area of the opening so that it does not meet
Sec. 154.340.

[[Page 327]]



Sec. 154.1870  Bow and stern loading.

    (a) When the bow or stern loading piping is not in use, the master
shall lock closed the shut-off valves under Sec. 154.355(a)(4) or
remove the spool piece under Sec. 154.355(a)(4).
    (b) The person in charge of cargo transfer shall ensure that after
the bow or stern loading piping is used it is purged of cargo vapors
with inert gas.
    (c) The person in charge of cargo transfer shall ensure that
entrances, forced or natural ventilation intakes, exhausts, and other
openings to any deck house alongside the bow or stern loading piping are
closed when this piping is in use.
    (d) The person in charge of cargo transfer shall ensure that bow or
stern loading piping installed in the area of the accommodation,
service, or control space is not used for transfer of the following:
    (1) Acetaldehyde.
    (2) Ammonia, anhydrous.
    (3) Dimethylamine.
    (4) Ethylamine.
    (5) Ethyl Chloride.
    (6) Methyl Chloride.
    (7) Vinyl Chloride.



Sec. 154.1872  Cargo emergency jettisoning.

    (a) The master shall ensure that emergency jettisoning piping under
Sec. 154.356, except bow and stern loading and discharging piping, is
only used when an emergency exists.
    (b) Emergency jettisoning piping when being used may be outside of
the transverse tank location under Sec. 154.310.
    (c) The master shall ensure that cargo is not jettisoned in a U.S.
port.
    (d) When ethylene oxide is carried, the master shall ensure that the
emergency jettisoning piping with associated pumps and fittings is on-
line and ready for use for an emergency.
    (e) The master shall lock closed the shut-off valves under Sec.
154.356 when the emergency jettisoning piping is not in use.
    (f) The person in charge of cargo transfer shall ensure that after
the emergency jettisoning piping is used it is purged of cargo vapors
with inert gas.
    (g) The person in charge of cargo transfer shall ensure that
entrances, forced or natural ventilation intakes, exhausts, and other
openings to accommodation, service, or control spaces facing the
emergency jettisoning piping area and alongside the emergency
jettisoning piping are closed when this piping is in use.

                                                        Table 4--Summary of Minimum Requirements
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                       Electrical
         Cargo name \1\             Ship type    Independent tank  Control of cargo       Vapor        Gauging \3\    hazard class         Special
                                                  type C required  tank vapor space   detection \2\                   and group \4\      requirements
--------------------------------------------------------------------------------------------------------------------------------------------------------
Acetaldehyde....................  IIG/IIPG.....  ................  Inert...........  I & T.........  C.............  I-C...........  154.1410 (c),
                                                                                                                                      154.1410,
                                                                                                                                      154.1710,
                                                                                                                                      154.1720,
                                                                                                                                      154.1870.
Ammonia, anhydrous..............  IIG/IIPG.....  ................  ................  T.............  C.............  I-D...........  154.1000, 154.1400
                                                                                                                                      (c), 154.1405,
                                                                                                                                      154.1410, 154.1702
                                                                                                                                      (b), (c), (e),
                                                                                                                                      154.1760,
                                                                                                                                      154.1870.
Butadiene.......................  IIG/IIPG.....  ................  Inert...........  I.............  R.............  I-B...........  154.1702 (b), (d),
                                                                                                                                      (f), 154.1710,
                                                                                                                                      154.1750,
                                                                                                                                      154.1818.
Butane..........................  IIG/IIPG.....  ................  ................  I.............  R.............  I-D...........  None.
Butylene........................  IIG/IIPG.....  ................  ................  I.............  R.............  I-D...........  None.
Dimethylamine...................  IIG/IIPG.....  ................  ................  I & T.........  C.............  I-C...........  154.1400 (c),
                                                                                                                                      154.1405,
                                                                                                                                      154.1410, 154.1702
                                                                                                                                      (b), (c), (e),
                                                                                                                                      154.1870.
Ethane..........................  IIG..........  ................  ................  I.............  R.............  I-D...........  None.
Ethylamine......................  IIG/IIPG.....  ................  ................  I & T.........  C.............  I-C...........  154.1400 (c),
                                                                                                                                      154.1405,
                                                                                                                                      154.1410, 154.1702
                                                                                                                                      (b), (c), (e),
                                                                                                                                      154.1870.
Ethyl Chloride..................  IIG/IIPG.....  ................  ................  I & T.........  R.............  I-D...........  154.1870.
Ethylene........................  IIG..........  ................  ................  I.............  R.............  I-C...........  None.

[[Page 328]]


Ethylene oxide..................  IG...........  Yes.............  Inert...........  I & T.........  C.............  I-B...........  154.660 (b) (3),
                                                                                                                                      154.1400 (c),
                                                                                                                                      154.1405,
                                                                                                                                      154.1410, 154.1702
                                                                                                                                      (b), (d), (f),
                                                                                                                                      154.1705,
                                                                                                                                      154.1710,
                                                                                                                                      154.1720,
                                                                                                                                      154.1725,
                                                                                                                                      154.1730, 154.1870
                                                                                                                                      (a), (b).
Methane (LNG)...................  IIG..........  ................  ................  I.............  C.............  I-D...........  154.703 through
                                                                                                                                      154.709, 154.1854.
Methyl acetylene-propadiene       IIG/IIPG.....  ................  ................  I.............  R.............  I.............  154.1735.
 mixture.
Methyl bromide..................  IG...........  Yes.............  ................  I & T.........  C.............  I-D...........  154.660 (b) (3),
                                                                                                                                      154.1345 (c) (d),
                                                                                                                                      154.1400 (c),
                                                                                                                                      154.1405,
                                                                                                                                      154.1410, 154.1702
                                                                                                                                      (a), (d),
                                                                                                                                      154.1705,
                                                                                                                                      154.1720, 154.1870
                                                                                                                                      (a), (b).
Methyl chloride.................  IIG/IIPG.....  ................  ................  I & T.........  C.............  I-D...........  154.1702 (a),
                                                                                                                                      154.1870.
Nitrogen........................  IIIG.........  ................  ................  O.............  C.............  ..............  154.1755.
Propane.........................  IIG/IIPG.....  ................  ................  I.............  R.............  I-D...........  None.
Propylene.......................  IIG/IIPG.....  ................  ................  I.............  R.............  I-D...........  None.
Refrigerant.....................  IIIG.........  ................  ................  ..............  R.............  ..............  None.
Sulfur dioxide..................  IG...........  Yes.............  Dry.............  T.............  C.............  ..............  154.660 (b) (3),
                                                                                                                                      154.1345 (c), (d),
                                                                                                                                      154.1400 (c),
                                                                                                                                      154.1405,
                                                                                                                                      154.1410,
                                                                                                                                      154.1705,
                                                                                                                                      154.1715,
                                                                                                                                      154.1720, 154.1870
                                                                                                                                      (a), (b).
Vinyl chloride..................  IIG/IIPG.....  ................  ................  I & T.........  C.............  I-D...........  154.1405, 154.1410,
                                                                                                                                      154.1702 (a) (b)
                                                                                                                                      (d) (f), 154.1710,
                                                                                                                                      154.1740,
                                                                                                                                      154.1745,
                                                                                                                                      154.1750,
                                                                                                                                      154.1818, 154.1830
                                                                                                                                      (f), 154.1870.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Refrigerant gases include non-toxic, non-flammable gases such as: dichlorodifluoromethane, dichloromonofluoromethane, dichlorotetrafluoroethane,
  monochlorodifluoromethane, monochlorotetrafluoroethane, and monochlorotrifluoromethane.
\2\ As used in this column: ``I'' stands for flammable vapor detection; ``T'' stands for toxic vapor detection; ``O'' stands for oxygen detection; and
  see Sec. Sec. 154.1345 thru 154.1360.
\3\ As used in this column: ``C'' stands for closed gauging; ``R'' stands for restricted gauging; and see Sec. 154.1300.
\4\ The designations used in this column are from the National Electrical Code.


[CGD 74-289, 44 FR 26009, May 3, 1979; 44 FR 59234, Oct. 15, 1979]



             Sec. Appendix A to Part 154--Equivalent Stress

    I. Equivalent stress ([sigma] c) is calculated by the following
formula or another formula specially approved by the Commandant (CG-522)
as equivalent to the following:
[GRAPHIC] [TIFF OMITTED] TC02FE91.090

where:

[sigma]x=total normal stress in ``x'' direction.
[sigma]y=total normal stress in ``y'' direction.
[tau]xy=total shear stress in ``xy'' plane.


[[Page 329]]


    II. When the static and dynamic stresses are calculated separately,
the total stresses in paragraph I are calculated from the following
formulae or another formulae specially approved by the Commandant (CG-
522) as equivalent to the following:
[GRAPHIC] [TIFF OMITTED] TC02FE91.091

[GRAPHIC] [TIFF OMITTED] TC02FE91.092

[GRAPHIC] [TIFF OMITTED] TC02FE91.093

    III. Each dynamic and static stress is determined from its
acceleration component and its hull strain component from hull
deflection and torsion.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR
4782, Feb. 3, 1983]



        Sec. Appendix B to Part 154--Stress Analyses Definitions

    The following are the standard definitions of stresses for the
analysis of an independent tank type B:
    Normal stress means the component of stress normal to the plane of
reference.
    Membrane stress means the component of normal stress that is
uniformly distributed and equal to the average value of the stress
across the thickness of the section under consideration.
    Bending stress means the variable stress across the thickness of the
section under consideration, after the subtraction of the membrane
stress.
    Shear stress means the component of the stress acting in the plane
of reference.
    Primary stress means the stress produced by the imposed loading that
is necessary to balance the external forces and moments. (The basic
characteristic of a primary stress is that it is not self-limiting.
Primary stresses that considerably exceed the yield strength result in
failure or at least in gross deformations.)
    Primary general membrane stress means the primary membrane stress
that is so distributed in the structure that no redistribution of load
occurs as a result of yielding.
    Primary local membrane stress means the resulting stress from both a
membrane stress, caused by pressure or other mechanical loading, and a
primary or a discontinuity effect that produces excessive distortion in
the transfer of loads to other portions of the structure. (The resulting
stress is a primary local membrane stress although it has some
characteristics of a secondary stress.) A stress region is local if:
[GRAPHIC] [TIFF OMITTED] TC02FE91.094

[GRAPHIC] [TIFF OMITTED] TC02FE91.095

where:

S1=distance in the meridional direction over which the
          equivalent stress exceeds 1.1 f.
S2=distance in the meridional direction to another region
          where the limits for primary general membrane stress are
          exceeded.
R=mean radius of the vessel.
t=wall thickness of the vessel at the location where the primary general
          membrane stress limit is exceeded.
f=allowable primary general membrane stress.

    Secondary stress means a normal stress or shear stress caused by
constraints of adjacent parts or by self-constraint of a structure. The
basic characteristic of a secondary stress is that it is self-limiting.
Local yielding and minor distortions can satisfy the conditions that
cause the stress to occur.

                           PART 155 [RESERVED]



               SUBCHAPTER P_MANNING OF VESSELS [RESERVED]



[[Page 331]]



                              FINDING AIDS




  --------------------------------------------------------------------

  A list of CFR titles, subtitles, chapters, subchapters and parts and 
an alphabetical list of agencies publishing in the CFR are included in 
the CFR Index and Finding Aids volume to the Code of Federal Regulations 
which is published separately and revised annually.

  Table of CFR Titles and Chapters
  Alphabetical List of Agencies Appearing in the CFR
  List of CFR Sections Affected

[[Page 333]]



                    Table of CFR Titles and Chapters




                     (Revised as of October 1, 2014)

                      Title 1--General Provisions

         I  Administrative Committee of the Federal Register 
                (Parts 1--49)
        II  Office of the Federal Register (Parts 50--299)
       III  Administrative Conference of the United States (Parts 
                300--399)
        IV  Miscellaneous Agencies (Parts 400--500)

                    Title 2--Grants and Agreements

            Subtitle A--Office of Management and Budget Guidance 
                for Grants and Agreements
         I  Office of Management and Budget Governmentwide 
                Guidance for Grants and Agreements (Parts 2--199)
        II  Office of Management and Budget Guidance (Parts 200--
                299)
            Subtitle B--Federal Agency Regulations for Grants and 
                Agreements
       III  Department of Health and Human Services (Parts 300--
                399)
        IV  Department of Agriculture (Parts 400--499)
        VI  Department of State (Parts 600--699)
       VII  Agency for International Development (Parts 700--799)
      VIII  Department of Veterans Affairs (Parts 800--899)
        IX  Department of Energy (Parts 900--999)
        XI  Department of Defense (Parts 1100--1199)
       XII  Department of Transportation (Parts 1200--1299)
      XIII  Department of Commerce (Parts 1300--1399)
       XIV  Department of the Interior (Parts 1400--1499)
        XV  Environmental Protection Agency (Parts 1500--1599)
     XVIII  National Aeronautics and Space Administration (Parts 
                1800--1899)
        XX  United States Nuclear Regulatory Commission (Parts 
                2000--2099)
      XXII  Corporation for National and Community Service (Parts 
                2200--2299)
     XXIII  Social Security Administration (Parts 2300--2399)
      XXIV  Housing and Urban Development (Parts 2400--2499)
       XXV  National Science Foundation (Parts 2500--2599)
      XXVI  National Archives and Records Administration (Parts 
                2600--2699)
     XXVII  Small Business Administration (Parts 2700--2799)
    XXVIII  Department of Justice (Parts 2800--2899)

[[Page 334]]

       XXX  Department of Homeland Security (Parts 3000--3099)
      XXXI  Institute of Museum and Library Services (Parts 3100--
                3199)
     XXXII  National Endowment for the Arts (Parts 3200--3299)
    XXXIII  National Endowment for the Humanities (Parts 3300--
                3399)
     XXXIV  Department of Education (Parts 3400--3499)
      XXXV  Export-Import Bank of the United States (Parts 3500--
                3599)
    XXXVII  Peace Corps (Parts 3700--3799)
     LVIII  Election Assistance Commission (Parts 5800--5899)

                        Title 3--The President

         I  Executive Office of the President (Parts 100--199)

                           Title 4--Accounts

         I  Government Accountability Office (Parts 1--199)
        II  Recovery Accountability and Transparency Board (Parts 
                200--299)

                   Title 5--Administrative Personnel

         I  Office of Personnel Management (Parts 1--1199)
        II  Merit Systems Protection Board (Parts 1200--1299)
       III  Office of Management and Budget (Parts 1300--1399)
         V  The International Organizations Employees Loyalty 
                Board (Parts 1500--1599)
        VI  Federal Retirement Thrift Investment Board (Parts 
                1600--1699)
      VIII  Office of Special Counsel (Parts 1800--1899)
        IX  Appalachian Regional Commission (Parts 1900--1999)
        XI  Armed Forces Retirement Home (Parts 2100--2199)
       XIV  Federal Labor Relations Authority, General Counsel of 
                the Federal Labor Relations Authority and Federal 
                Service Impasses Panel (Parts 2400--2499)
        XV  Office of Administration, Executive Office of the 
                President (Parts 2500--2599)
       XVI  Office of Government Ethics (Parts 2600--2699)
       XXI  Department of the Treasury (Parts 3100--3199)
      XXII  Federal Deposit Insurance Corporation (Parts 3200--
                3299)
     XXIII  Department of Energy (Parts 3300--3399)
      XXIV  Federal Energy Regulatory Commission (Parts 3400--
                3499)
       XXV  Department of the Interior (Parts 3500--3599)
      XXVI  Department of Defense (Parts 3600--3699)
    XXVIII  Department of Justice (Parts 3800--3899)
      XXIX  Federal Communications Commission (Parts 3900--3999)
       XXX  Farm Credit System Insurance Corporation (Parts 4000--
                4099)
      XXXI  Farm Credit Administration (Parts 4100--4199)

[[Page 335]]

    XXXIII  Overseas Private Investment Corporation (Parts 4300--
                4399)
     XXXIV  Securities and Exchange Commission (Parts 4400--4499)
      XXXV  Office of Personnel Management (Parts 4500--4599)
    XXXVII  Federal Election Commission (Parts 4700--4799)
        XL  Interstate Commerce Commission (Parts 5000--5099)
       XLI  Commodity Futures Trading Commission (Parts 5100--
                5199)
      XLII  Department of Labor (Parts 5200--5299)
     XLIII  National Science Foundation (Parts 5300--5399)
       XLV  Department of Health and Human Services (Parts 5500--
                5599)
      XLVI  Postal Rate Commission (Parts 5600--5699)
     XLVII  Federal Trade Commission (Parts 5700--5799)
    XLVIII  Nuclear Regulatory Commission (Parts 5800--5899)
      XLIX  Federal Labor Relations Authority (Parts 5900--5999)
         L  Department of Transportation (Parts 6000--6099)
       LII  Export-Import Bank of the United States (Parts 6200--
                6299)
      LIII  Department of Education (Parts 6300--6399)
       LIV  Environmental Protection Agency (Parts 6400--6499)
        LV  National Endowment for the Arts (Parts 6500--6599)
       LVI  National Endowment for the Humanities (Parts 6600--
                6699)
      LVII  General Services Administration (Parts 6700--6799)
     LVIII  Board of Governors of the Federal Reserve System 
                (Parts 6800--6899)
       LIX  National Aeronautics and Space Administration (Parts 
                6900--6999)
        LX  United States Postal Service (Parts 7000--7099)
       LXI  National Labor Relations Board (Parts 7100--7199)
      LXII  Equal Employment Opportunity Commission (Parts 7200--
                7299)
     LXIII  Inter-American Foundation (Parts 7300--7399)
      LXIV  Merit Systems Protection Board (Parts 7400--7499)
       LXV  Department of Housing and Urban Development (Parts 
                7500--7599)
      LXVI  National Archives and Records Administration (Parts 
                7600--7699)
     LXVII  Institute of Museum and Library Services (Parts 7700--
                7799)
    LXVIII  Commission on Civil Rights (Parts 7800--7899)
      LXIX  Tennessee Valley Authority (Parts 7900--7999)
       LXX  Court Services and Offender Supervision Agency for the 
                District of Columbia (Parts 8000--8099)
      LXXI  Consumer Product Safety Commission (Parts 8100--8199)
    LXXIII  Department of Agriculture (Parts 8300--8399)
     LXXIV  Federal Mine Safety and Health Review Commission 
                (Parts 8400--8499)
     LXXVI  Federal Retirement Thrift Investment Board (Parts 
                8600--8699)
    LXXVII  Office of Management and Budget (Parts 8700--8799)
      LXXX  Federal Housing Finance Agency (Parts 9000--9099)
   LXXXIII  Special Inspector General for Afghanistan 
                Reconstruction (Parts 9300--9399)

[[Page 336]]

    LXXXIV  Bureau of Consumer Financial Protection (Parts 9400--
                9499)
    LXXXVI  National Credit Union Administration (Parts 9600--
                9699)
     XCVII  Department of Homeland Security Human Resources 
                Management System (Department of Homeland 
                Security--Office of Personnel Management) (Parts 
                9700--9799)
     XCVII  Council of the Inspectors General on Integrity and 
                Efficiency (Parts 9800--9899)
      XCIX  Military Compensation and Retirement Modernization 
                Commission (Parts 9900--9999)

                      Title 6--Domestic Security

         I  Department of Homeland Security, Office of the 
                Secretary (Parts 1--99)
         X  Privacy and Civil Liberties Oversight Board (Parts 
                1000--1099)

                         Title 7--Agriculture

            Subtitle A--Office of the Secretary of Agriculture 
                (Parts 0--26)
            Subtitle B--Regulations of the Department of 
                Agriculture
         I  Agricultural Marketing Service (Standards, 
                Inspections, Marketing Practices), Department of 
                Agriculture (Parts 27--209)
        II  Food and Nutrition Service, Department of Agriculture 
                (Parts 210--299)
       III  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 300--399)
        IV  Federal Crop Insurance Corporation, Department of 
                Agriculture (Parts 400--499)
         V  Agricultural Research Service, Department of 
                Agriculture (Parts 500--599)
        VI  Natural Resources Conservation Service, Department of 
                Agriculture (Parts 600--699)
       VII  Farm Service Agency, Department of Agriculture (Parts 
                700--799)
      VIII  Grain Inspection, Packers and Stockyards 
                Administration (Federal Grain Inspection Service), 
                Department of Agriculture (Parts 800--899)
        IX  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Fruits, Vegetables, Nuts), Department 
                of Agriculture (Parts 900--999)
         X  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Milk), Department of Agriculture 
                (Parts 1000--1199)
        XI  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Miscellaneous Commodities), Department 
                of Agriculture (Parts 1200--1299)
       XIV  Commodity Credit Corporation, Department of 
                Agriculture (Parts 1400--1499)
        XV  Foreign Agricultural Service, Department of 
                Agriculture (Parts 1500--1599)

[[Page 337]]

       XVI  Rural Telephone Bank, Department of Agriculture (Parts 
                1600--1699)
      XVII  Rural Utilities Service, Department of Agriculture 
                (Parts 1700--1799)
     XVIII  Rural Housing Service, Rural Business-Cooperative 
                Service, Rural Utilities Service, and Farm Service 
                Agency, Department of Agriculture (Parts 1800--
                2099)
        XX  Local Television Loan Guarantee Board (Parts 2200--
                2299)
       XXV  Office of Advocacy and Outreach, Department of 
                Agriculture (Parts 2500--2599)
      XXVI  Office of Inspector General, Department of Agriculture 
                (Parts 2600--2699)
     XXVII  Office of Information Resources Management, Department 
                of Agriculture (Parts 2700--2799)
    XXVIII  Office of Operations, Department of Agriculture (Parts 
                2800--2899)
      XXIX  Office of Energy Policy and New Uses, Department of 
                Agriculture (Parts 2900--2999)
       XXX  Office of the Chief Financial Officer, Department of 
                Agriculture (Parts 3000--3099)
      XXXI  Office of Environmental Quality, Department of 
                Agriculture (Parts 3100--3199)
     XXXII  Office of Procurement and Property Management, 
                Department of Agriculture (Parts 3200--3299)
    XXXIII  Office of Transportation, Department of Agriculture 
                (Parts 3300--3399)
     XXXIV  National Institute of Food and Agriculture (Parts 
                3400--3499)
      XXXV  Rural Housing Service, Department of Agriculture 
                (Parts 3500--3599)
     XXXVI  National Agricultural Statistics Service, Department 
                of Agriculture (Parts 3600--3699)
    XXXVII  Economic Research Service, Department of Agriculture 
                (Parts 3700--3799)
   XXXVIII  World Agricultural Outlook Board, Department of 
                Agriculture (Parts 3800--3899)
       XLI  [Reserved]
      XLII  Rural Business-Cooperative Service and Rural Utilities 
                Service, Department of Agriculture (Parts 4200--
                4299)

                    Title 8--Aliens and Nationality

         I  Department of Homeland Security (Immigration and 
                Naturalization) (Parts 1--499)
         V  Executive Office for Immigration Review, Department of 
                Justice (Parts 1000--1399)

                 Title 9--Animals and Animal Products

         I  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 1--199)

[[Page 338]]

        II  Grain Inspection, Packers and Stockyards 
                Administration (Packers and Stockyards Programs), 
                Department of Agriculture (Parts 200--299)
       III  Food Safety and Inspection Service, Department of 
                Agriculture (Parts 300--599)

                           Title 10--Energy

         I  Nuclear Regulatory Commission (Parts 0--199)
        II  Department of Energy (Parts 200--699)
       III  Department of Energy (Parts 700--999)
         X  Department of Energy (General Provisions) (Parts 
                1000--1099)
      XIII  Nuclear Waste Technical Review Board (Parts 1300--
                1399)
      XVII  Defense Nuclear Facilities Safety Board (Parts 1700--
                1799)
     XVIII  Northeast Interstate Low-Level Radioactive Waste 
                Commission (Parts 1800--1899)

                      Title 11--Federal Elections

         I  Federal Election Commission (Parts 1--9099)
        II  Election Assistance Commission (Parts 9400--9499)

                      Title 12--Banks and Banking

         I  Comptroller of the Currency, Department of the 
                Treasury (Parts 1--199)
        II  Federal Reserve System (Parts 200--299)
       III  Federal Deposit Insurance Corporation (Parts 300--399)
        IV  Export-Import Bank of the United States (Parts 400--
                499)
         V  Office of Thrift Supervision, Department of the 
                Treasury (Parts 500--599)
        VI  Farm Credit Administration (Parts 600--699)
       VII  National Credit Union Administration (Parts 700--799)
      VIII  Federal Financing Bank (Parts 800--899)
        IX  Federal Housing Finance Board (Parts 900--999)
         X  Bureau of Consumer Financial Protection (Parts 1000--
                1099)
        XI  Federal Financial Institutions Examination Council 
                (Parts 1100--1199)
       XII  Federal Housing Finance Agency (Parts 1200--1299)
      XIII  Financial Stability Oversight Council (Parts 1300--
                1399)
       XIV  Farm Credit System Insurance Corporation (Parts 1400--
                1499)
        XV  Department of the Treasury (Parts 1500--1599)
       XVI  Office of Financial Research (Parts 1600--1699)
      XVII  Office of Federal Housing Enterprise Oversight, 
                Department of Housing and Urban Development (Parts 
                1700--1799)
     XVIII  Community Development Financial Institutions Fund, 
                Department of the Treasury (Parts 1800--1899)

[[Page 339]]

               Title 13--Business Credit and Assistance

         I  Small Business Administration (Parts 1--199)
       III  Economic Development Administration, Department of 
                Commerce (Parts 300--399)
        IV  Emergency Steel Guarantee Loan Board (Parts 400--499)
         V  Emergency Oil and Gas Guaranteed Loan Board (Parts 
                500--599)

                    Title 14--Aeronautics and Space

         I  Federal Aviation Administration, Department of 
                Transportation (Parts 1--199)
        II  Office of the Secretary, Department of Transportation 
                (Aviation Proceedings) (Parts 200--399)
       III  Commercial Space Transportation, Federal Aviation 
                Administration, Department of Transportation 
                (Parts 400--1199)
         V  National Aeronautics and Space Administration (Parts 
                1200--1299)
        VI  Air Transportation System Stabilization (Parts 1300--
                1399)

                 Title 15--Commerce and Foreign Trade

            Subtitle A--Office of the Secretary of Commerce (Parts 
                0--29)
            Subtitle B--Regulations Relating to Commerce and 
                Foreign Trade
         I  Bureau of the Census, Department of Commerce (Parts 
                30--199)
        II  National Institute of Standards and Technology, 
                Department of Commerce (Parts 200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)
        IV  Foreign-Trade Zones Board, Department of Commerce 
                (Parts 400--499)
       VII  Bureau of Industry and Security, Department of 
                Commerce (Parts 700--799)
      VIII  Bureau of Economic Analysis, Department of Commerce 
                (Parts 800--899)
        IX  National Oceanic and Atmospheric Administration, 
                Department of Commerce (Parts 900--999)
        XI  Technology Administration, Department of Commerce 
                (Parts 1100--1199)
      XIII  East-West Foreign Trade Board (Parts 1300--1399)
       XIV  Minority Business Development Agency (Parts 1400--
                1499)
            Subtitle C--Regulations Relating to Foreign Trade 
                Agreements
        XX  Office of the United States Trade Representative 
                (Parts 2000--2099)
            Subtitle D--Regulations Relating to Telecommunications 
                and Information
     XXIII  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                2300--2399)

[[Page 340]]

                    Title 16--Commercial Practices

         I  Federal Trade Commission (Parts 0--999)
        II  Consumer Product Safety Commission (Parts 1000--1799)

             Title 17--Commodity and Securities Exchanges

         I  Commodity Futures Trading Commission (Parts 1--199)
        II  Securities and Exchange Commission (Parts 200--399)
        IV  Department of the Treasury (Parts 400--499)

          Title 18--Conservation of Power and Water Resources

         I  Federal Energy Regulatory Commission, Department of 
                Energy (Parts 1--399)
       III  Delaware River Basin Commission (Parts 400--499)
        VI  Water Resources Council (Parts 700--799)
      VIII  Susquehanna River Basin Commission (Parts 800--899)
      XIII  Tennessee Valley Authority (Parts 1300--1399)

                       Title 19--Customs Duties

         I  U.S. Customs and Border Protection, Department of 
                Homeland Security; Department of the Treasury 
                (Parts 0--199)
        II  United States International Trade Commission (Parts 
                200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)
        IV  U.S. Immigration and Customs Enforcement, Department 
                of Homeland Security (Parts 400--599)

                     Title 20--Employees' Benefits

         I  Office of Workers' Compensation Programs, Department 
                of Labor (Parts 1--199)
        II  Railroad Retirement Board (Parts 200--399)
       III  Social Security Administration (Parts 400--499)
        IV  Employees' Compensation Appeals Board, Department of 
                Labor (Parts 500--599)
         V  Employment and Training Administration, Department of 
                Labor (Parts 600--699)
        VI  Office of Workers' Compensation Programs, Department 
                of Labor (Parts 700--799)
       VII  Benefits Review Board, Department of Labor (Parts 
                800--899)
      VIII  Joint Board for the Enrollment of Actuaries (Parts 
                900--999)
        IX  Office of the Assistant Secretary for Veterans' 
                Employment and Training Service, Department of 
                Labor (Parts 1000--1099)

[[Page 341]]

                       Title 21--Food and Drugs

         I  Food and Drug Administration, Department of Health and 
                Human Services (Parts 1--1299)
        II  Drug Enforcement Administration, Department of Justice 
                (Parts 1300--1399)
       III  Office of National Drug Control Policy (Parts 1400--
                1499)

                      Title 22--Foreign Relations

         I  Department of State (Parts 1--199)
        II  Agency for International Development (Parts 200--299)
       III  Peace Corps (Parts 300--399)
        IV  International Joint Commission, United States and 
                Canada (Parts 400--499)
         V  Broadcasting Board of Governors (Parts 500--599)
       VII  Overseas Private Investment Corporation (Parts 700--
                799)
        IX  Foreign Service Grievance Board (Parts 900--999)
         X  Inter-American Foundation (Parts 1000--1099)
        XI  International Boundary and Water Commission, United 
                States and Mexico, United States Section (Parts 
                1100--1199)
       XII  United States International Development Cooperation 
                Agency (Parts 1200--1299)
      XIII  Millennium Challenge Corporation (Parts 1300--1399)
       XIV  Foreign Service Labor Relations Board; Federal Labor 
                Relations Authority; General Counsel of the 
                Federal Labor Relations Authority; and the Foreign 
                Service Impasse Disputes Panel (Parts 1400--1499)
        XV  African Development Foundation (Parts 1500--1599)
       XVI  Japan-United States Friendship Commission (Parts 
                1600--1699)
      XVII  United States Institute of Peace (Parts 1700--1799)

                          Title 23--Highways

         I  Federal Highway Administration, Department of 
                Transportation (Parts 1--999)
        II  National Highway Traffic Safety Administration and 
                Federal Highway Administration, Department of 
                Transportation (Parts 1200--1299)
       III  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 1300--1399)

                Title 24--Housing and Urban Development

            Subtitle A--Office of the Secretary, Department of 
                Housing and Urban Development (Parts 0--99)
            Subtitle B--Regulations Relating to Housing and Urban 
                Development
         I  Office of Assistant Secretary for Equal Opportunity, 
                Department of Housing and Urban Development (Parts 
                100--199)

[[Page 342]]

        II  Office of Assistant Secretary for Housing-Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 200--299)
       III  Government National Mortgage Association, Department 
                of Housing and Urban Development (Parts 300--399)
        IV  Office of Housing and Office of Multifamily Housing 
                Assistance Restructuring, Department of Housing 
                and Urban Development (Parts 400--499)
         V  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 500--599)
        VI  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 600--699) [Reserved]
       VII  Office of the Secretary, Department of Housing and 
                Urban Development (Housing Assistance Programs and 
                Public and Indian Housing Programs) (Parts 700--
                799)
      VIII  Office of the Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Section 8 Housing Assistance 
                Programs, Section 202 Direct Loan Program, Section 
                202 Supportive Housing for the Elderly Program and 
                Section 811 Supportive Housing for Persons With 
                Disabilities Program) (Parts 800--899)
        IX  Office of Assistant Secretary for Public and Indian 
                Housing, Department of Housing and Urban 
                Development (Parts 900--1699)
         X  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Interstate Land Sales 
                Registration Program) (Parts 1700--1799)
       XII  Office of Inspector General, Department of Housing and 
                Urban Development (Parts 2000--2099)
        XV  Emergency Mortgage Insurance and Loan Programs, 
                Department of Housing and Urban Development (Parts 
                2700--2799) [Reserved]
        XX  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 3200--3899)
      XXIV  Board of Directors of the HOPE for Homeowners Program 
                (Parts 4000--4099) [Reserved]
       XXV  Neighborhood Reinvestment Corporation (Parts 4100--
                4199)

                           Title 25--Indians

         I  Bureau of Indian Affairs, Department of the Interior 
                (Parts 1--299)
        II  Indian Arts and Crafts Board, Department of the 
                Interior (Parts 300--399)
       III  National Indian Gaming Commission, Department of the 
                Interior (Parts 500--599)
        IV  Office of Navajo and Hopi Indian Relocation (Parts 
                700--799)

[[Page 343]]

         V  Bureau of Indian Affairs, Department of the Interior, 
                and Indian Health Service, Department of Health 
                and Human Services (Part 900)
        VI  Office of the Assistant Secretary-Indian Affairs, 
                Department of the Interior (Parts 1000--1199)
       VII  Office of the Special Trustee for American Indians, 
                Department of the Interior (Parts 1200--1299)

                      Title 26--Internal Revenue

         I  Internal Revenue Service, Department of the Treasury 
                (Parts 1--End)

           Title 27--Alcohol, Tobacco Products and Firearms

         I  Alcohol and Tobacco Tax and Trade Bureau, Department 
                of the Treasury (Parts 1--399)
        II  Bureau of Alcohol, Tobacco, Firearms, and Explosives, 
                Department of Justice (Parts 400--699)

                   Title 28--Judicial Administration

         I  Department of Justice (Parts 0--299)
       III  Federal Prison Industries, Inc., Department of Justice 
                (Parts 300--399)
         V  Bureau of Prisons, Department of Justice (Parts 500--
                599)
        VI  Offices of Independent Counsel, Department of Justice 
                (Parts 600--699)
       VII  Office of Independent Counsel (Parts 700--799)
      VIII  Court Services and Offender Supervision Agency for the 
                District of Columbia (Parts 800--899)
        IX  National Crime Prevention and Privacy Compact Council 
                (Parts 900--999)
        XI  Department of Justice and Department of State (Parts 
                1100--1199)

                            Title 29--Labor

            Subtitle A--Office of the Secretary of Labor (Parts 
                0--99)
            Subtitle B--Regulations Relating to Labor
         I  National Labor Relations Board (Parts 100--199)
        II  Office of Labor-Management Standards, Department of 
                Labor (Parts 200--299)
       III  National Railroad Adjustment Board (Parts 300--399)
        IV  Office of Labor-Management Standards, Department of 
                Labor (Parts 400--499)
         V  Wage and Hour Division, Department of Labor (Parts 
                500--899)
        IX  Construction Industry Collective Bargaining Commission 
                (Parts 900--999)

[[Page 344]]

         X  National Mediation Board (Parts 1200--1299)
       XII  Federal Mediation and Conciliation Service (Parts 
                1400--1499)
       XIV  Equal Employment Opportunity Commission (Parts 1600--
                1699)
      XVII  Occupational Safety and Health Administration, 
                Department of Labor (Parts 1900--1999)
        XX  Occupational Safety and Health Review Commission 
                (Parts 2200--2499)
       XXV  Employee Benefits Security Administration, Department 
                of Labor (Parts 2500--2599)
     XXVII  Federal Mine Safety and Health Review Commission 
                (Parts 2700--2799)
        XL  Pension Benefit Guaranty Corporation (Parts 4000--
                4999)

                      Title 30--Mineral Resources

         I  Mine Safety and Health Administration, Department of 
                Labor (Parts 1--199)
        II  Bureau of Safety and Environmental Enforcement, 
                Department of the Interior (Parts 200--299)
        IV  Geological Survey, Department of the Interior (Parts 
                400--499)
         V  Bureau of Ocean Energy Management, Department of the 
                Interior (Parts 500--599)
       VII  Office of Surface Mining Reclamation and Enforcement, 
                Department of the Interior (Parts 700--999)
       XII  Office of Natural Resources Revenue, Department of the 
                Interior (Parts 1200--1299)

                 Title 31--Money and Finance: Treasury

            Subtitle A--Office of the Secretary of the Treasury 
                (Parts 0--50)
            Subtitle B--Regulations Relating to Money and Finance
         I  Monetary Offices, Department of the Treasury (Parts 
                51--199)
        II  Fiscal Service, Department of the Treasury (Parts 
                200--399)
        IV  Secret Service, Department of the Treasury (Parts 
                400--499)
         V  Office of Foreign Assets Control, Department of the 
                Treasury (Parts 500--599)
        VI  Bureau of Engraving and Printing, Department of the 
                Treasury (Parts 600--699)
       VII  Federal Law Enforcement Training Center, Department of 
                the Treasury (Parts 700--799)
      VIII  Office of International Investment, Department of the 
                Treasury (Parts 800--899)
        IX  Federal Claims Collection Standards (Department of the 
                Treasury--Department of Justice) (Parts 900--999)
         X  Financial Crimes Enforcement Network, Department of 
                the Treasury (Parts 1000--1099)

[[Page 345]]

                      Title 32--National Defense

            Subtitle A--Department of Defense
         I  Office of the Secretary of Defense (Parts 1--399)
         V  Department of the Army (Parts 400--699)
        VI  Department of the Navy (Parts 700--799)
       VII  Department of the Air Force (Parts 800--1099)
            Subtitle B--Other Regulations Relating to National 
                Defense
       XII  Defense Logistics Agency (Parts 1200--1299)
       XVI  Selective Service System (Parts 1600--1699)
      XVII  Office of the Director of National Intelligence (Parts 
                1700--1799)
     XVIII  National Counterintelligence Center (Parts 1800--1899)
       XIX  Central Intelligence Agency (Parts 1900--1999)
        XX  Information Security Oversight Office, National 
                Archives and Records Administration (Parts 2000--
                2099)
       XXI  National Security Council (Parts 2100--2199)
      XXIV  Office of Science and Technology Policy (Parts 2400--
                2499)
     XXVII  Office for Micronesian Status Negotiations (Parts 
                2700--2799)
    XXVIII  Office of the Vice President of the United States 
                (Parts 2800--2899)

               Title 33--Navigation and Navigable Waters

         I  Coast Guard, Department of Homeland Security (Parts 
                1--199)
        II  Corps of Engineers, Department of the Army (Parts 
                200--399)
        IV  Saint Lawrence Seaway Development Corporation, 
                Department of Transportation (Parts 400--499)

                          Title 34--Education

            Subtitle A--Office of the Secretary, Department of 
                Education (Parts 1--99)
            Subtitle B--Regulations of the Offices of the 
                Department of Education
         I  Office for Civil Rights, Department of Education 
                (Parts 100--199)
        II  Office of Elementary and Secondary Education, 
                Department of Education (Parts 200--299)
       III  Office of Special Education and Rehabilitative 
                Services, Department of Education (Parts 300--399)
        IV  Office of Vocational and Adult Education, Department 
                of Education (Parts 400--499)
         V  Office of Bilingual Education and Minority Languages 
                Affairs, Department of Education (Parts 500--599)
        VI  Office of Postsecondary Education, Department of 
                Education (Parts 600--699)
       VII  Office of Educational Research and Improvement, 
                Department of Education (Parts 700--799)[Reserved]
            Subtitle C--Regulations Relating to Education

[[Page 346]]

        XI  National Institute for Literacy (Parts 1100--1199)
       XII  National Council on Disability (Parts 1200--1299)

                          Title 35 [Reserved]

             Title 36--Parks, Forests, and Public Property

         I  National Park Service, Department of the Interior 
                (Parts 1--199)
        II  Forest Service, Department of Agriculture (Parts 200--
                299)
       III  Corps of Engineers, Department of the Army (Parts 
                300--399)
        IV  American Battle Monuments Commission (Parts 400--499)
         V  Smithsonian Institution (Parts 500--599)
        VI  [Reserved]
       VII  Library of Congress (Parts 700--799)
      VIII  Advisory Council on Historic Preservation (Parts 800--
                899)
        IX  Pennsylvania Avenue Development Corporation (Parts 
                900--999)
         X  Presidio Trust (Parts 1000--1099)
        XI  Architectural and Transportation Barriers Compliance 
                Board (Parts 1100--1199)
       XII  National Archives and Records Administration (Parts 
                1200--1299)
        XV  Oklahoma City National Memorial Trust (Parts 1500--
                1599)
       XVI  Morris K. Udall Scholarship and Excellence in National 
                Environmental Policy Foundation (Parts 1600--1699)

             Title 37--Patents, Trademarks, and Copyrights

         I  United States Patent and Trademark Office, Department 
                of Commerce (Parts 1--199)
        II  U.S. Copyright Office, Library of Congress (Parts 
                200--299)
       III  Copyright Royalty Board, Library of Congress (Parts 
                300--399)
        IV  Assistant Secretary for Technology Policy, Department 
                of Commerce (Parts 400--599)

           Title 38--Pensions, Bonuses, and Veterans' Relief

         I  Department of Veterans Affairs (Parts 0--199)
        II  Armed Forces Retirement Home (Parts 200--299)

                       Title 39--Postal Service

         I  United States Postal Service (Parts 1--999)
       III  Postal Regulatory Commission (Parts 3000--3099)

                  Title 40--Protection of Environment

         I  Environmental Protection Agency (Parts 1--1099)

[[Page 347]]

        IV  Environmental Protection Agency and Department of 
                Justice (Parts 1400--1499)
         V  Council on Environmental Quality (Parts 1500--1599)
        VI  Chemical Safety and Hazard Investigation Board (Parts 
                1600--1699)
       VII  Environmental Protection Agency and Department of 
                Defense; Uniform National Discharge Standards for 
                Vessels of the Armed Forces (Parts 1700--1799)
      VIII  Gulf Coast Ecosystem Restoration Council (Parts 1800--
                1899)

          Title 41--Public Contracts and Property Management

            Subtitle A--Federal Procurement Regulations System 
                [Note]
            Subtitle B--Other Provisions Relating to Public 
                Contracts
        50  Public Contracts, Department of Labor (Parts 50-1--50-
                999)
        51  Committee for Purchase From People Who Are Blind or 
                Severely Disabled (Parts 51-1--51-99)
        60  Office of Federal Contract Compliance Programs, Equal 
                Employment Opportunity, Department of Labor (Parts 
                60-1--60-999)
        61  Office of the Assistant Secretary for Veterans' 
                Employment and Training Service, Department of 
                Labor (Parts 61-1--61-999)
   62--100  [Reserved]
            Subtitle C--Federal Property Management Regulations 
                System
       101  Federal Property Management Regulations (Parts 101-1--
                101-99)
       102  Federal Management Regulation (Parts 102-1--102-299)
  103--104  [Reserved]
       105  General Services Administration (Parts 105-1--105-999)
       109  Department of Energy Property Management Regulations 
                (Parts 109-1--109-99)
       114  Department of the Interior (Parts 114-1--114-99)
       115  Environmental Protection Agency (Parts 115-1--115-99)
       128  Department of Justice (Parts 128-1--128-99)
  129--200  [Reserved]
            Subtitle D--Other Provisions Relating to Property 
                Management [Reserved]
            Subtitle E--Federal Information Resources Management 
                Regulations System [Reserved]
            Subtitle F--Federal Travel Regulation System
       300  General (Parts 300-1--300-99)
       301  Temporary Duty (TDY) Travel Allowances (Parts 301-1--
                301-99)
       302  Relocation Allowances (Parts 302-1--302-99)
       303  Payment of Expenses Connected with the Death of 
                Certain Employees (Part 303-1--303-99)
       304  Payment of Travel Expenses from a Non-Federal Source 
                (Parts 304-1--304-99)

[[Page 348]]

                        Title 42--Public Health

         I  Public Health Service, Department of Health and Human 
                Services (Parts 1--199)
        IV  Centers for Medicare & Medicaid Services, Department 
                of Health and Human Services (Parts 400--599)
         V  Office of Inspector General-Health Care, Department of 
                Health and Human Services (Parts 1000--1999)

                   Title 43--Public Lands: Interior

            Subtitle A--Office of the Secretary of the Interior 
                (Parts 1--199)
            Subtitle B--Regulations Relating to Public Lands
         I  Bureau of Reclamation, Department of the Interior 
                (Parts 400--999)
        II  Bureau of Land Management, Department of the Interior 
                (Parts 1000--9999)
       III  Utah Reclamation Mitigation and Conservation 
                Commission (Parts 10000--10099)

             Title 44--Emergency Management and Assistance

         I  Federal Emergency Management Agency, Department of 
                Homeland Security (Parts 0--399)
        IV  Department of Commerce and Department of 
                Transportation (Parts 400--499)

                       Title 45--Public Welfare

            Subtitle A--Department of Health and Human Services 
                (Parts 1--199)
            Subtitle B--Regulations Relating to Public Welfare
        II  Office of Family Assistance (Assistance Programs), 
                Administration for Children and Families, 
                Department of Health and Human Services (Parts 
                200--299)
       III  Office of Child Support Enforcement (Child Support 
                Enforcement Program), Administration for Children 
                and Families, Department of Health and Human 
                Services (Parts 300--399)
        IV  Office of Refugee Resettlement, Administration for 
                Children and Families, Department of Health and 
                Human Services (Parts 400--499)
         V  Foreign Claims Settlement Commission of the United 
                States, Department of Justice (Parts 500--599)
        VI  National Science Foundation (Parts 600--699)
       VII  Commission on Civil Rights (Parts 700--799)
      VIII  Office of Personnel Management (Parts 800--899)
         X  Office of Community Services, Administration for 
                Children and Families, Department of Health and 
                Human Services (Parts 1000--1099)
        XI  National Foundation on the Arts and the Humanities 
                (Parts 1100--1199)

[[Page 349]]

       XII  Corporation for National and Community Service (Parts 
                1200--1299)
      XIII  Office of Human Development Services, Department of 
                Health and Human Services (Parts 1300--1399)
       XVI  Legal Services Corporation (Parts 1600--1699)
      XVII  National Commission on Libraries and Information 
                Science (Parts 1700--1799)
     XVIII  Harry S. Truman Scholarship Foundation (Parts 1800--
                1899)
       XXI  Commission on Fine Arts (Parts 2100--2199)
     XXIII  Arctic Research Commission (Part 2301)
      XXIV  James Madison Memorial Fellowship Foundation (Parts 
                2400--2499)
       XXV  Corporation for National and Community Service (Parts 
                2500--2599)

                          Title 46--Shipping

         I  Coast Guard, Department of Homeland Security (Parts 
                1--199)
        II  Maritime Administration, Department of Transportation 
                (Parts 200--399)
       III  Coast Guard (Great Lakes Pilotage), Department of 
                Homeland Security (Parts 400--499)
        IV  Federal Maritime Commission (Parts 500--599)

                      Title 47--Telecommunication

         I  Federal Communications Commission (Parts 0--199)
        II  Office of Science and Technology Policy and National 
                Security Council (Parts 200--299)
       III  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                300--399)
        IV  National Telecommunications and Information 
                Administration, Department of Commerce, and 
                National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 400--499)

           Title 48--Federal Acquisition Regulations System

         1  Federal Acquisition Regulation (Parts 1--99)
         2  Defense Acquisition Regulations System, Department of 
                Defense (Parts 200--299)
         3  Health and Human Services (Parts 300--399)
         4  Department of Agriculture (Parts 400--499)
         5  General Services Administration (Parts 500--599)
         6  Department of State (Parts 600--699)
         7  Agency for International Development (Parts 700--799)
         8  Department of Veterans Affairs (Parts 800--899)
         9  Department of Energy (Parts 900--999)

[[Page 350]]

        10  Department of the Treasury (Parts 1000--1099)
        12  Department of Transportation (Parts 1200--1299)
        13  Department of Commerce (Parts 1300--1399)
        14  Department of the Interior (Parts 1400--1499)
        15  Environmental Protection Agency (Parts 1500--1599)
        16  Office of Personnel Management, Federal Employees 
                Health Benefits Acquisition Regulation (Parts 
                1600--1699)
        17  Office of Personnel Management (Parts 1700--1799)
        18  National Aeronautics and Space Administration (Parts 
                1800--1899)
        19  Broadcasting Board of Governors (Parts 1900--1999)
        20  Nuclear Regulatory Commission (Parts 2000--2099)
        21  Office of Personnel Management, Federal Employees 
                Group Life Insurance Federal Acquisition 
                Regulation (Parts 2100--2199)
        23  Social Security Administration (Parts 2300--2399)
        24  Department of Housing and Urban Development (Parts 
                2400--2499)
        25  National Science Foundation (Parts 2500--2599)
        28  Department of Justice (Parts 2800--2899)
        29  Department of Labor (Parts 2900--2999)
        30  Department of Homeland Security, Homeland Security 
                Acquisition Regulation (HSAR) (Parts 3000--3099)
        34  Department of Education Acquisition Regulation (Parts 
                3400--3499)
        51  Department of the Army Acquisition Regulations (Parts 
                5100--5199)
        52  Department of the Navy Acquisition Regulations (Parts 
                5200--5299)
        53  Department of the Air Force Federal Acquisition 
                Regulation Supplement (Parts 5300--5399) 
                [Reserved]
        54  Defense Logistics Agency, Department of Defense (Parts 
                5400--5499)
        57  African Development Foundation (Parts 5700--5799)
        61  Civilian Board of Contract Appeals, General Services 
                Administration (Parts 6100--6199)
        63  Department of Transportation Board of Contract Appeals 
                (Parts 6300--6399)
        99  Cost Accounting Standards Board, Office of Federal 
                Procurement Policy, Office of Management and 
                Budget (Parts 9900--9999)

                       Title 49--Transportation

            Subtitle A--Office of the Secretary of Transportation 
                (Parts 1--99)
            Subtitle B--Other Regulations Relating to 
                Transportation
         I  Pipeline and Hazardous Materials Safety 
                Administration, Department of Transportation 
                (Parts 100--199)

[[Page 351]]

        II  Federal Railroad Administration, Department of 
                Transportation (Parts 200--299)
       III  Federal Motor Carrier Safety Administration, 
                Department of Transportation (Parts 300--399)
        IV  Coast Guard, Department of Homeland Security (Parts 
                400--499)
         V  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 500--599)
        VI  Federal Transit Administration, Department of 
                Transportation (Parts 600--699)
       VII  National Railroad Passenger Corporation (AMTRAK) 
                (Parts 700--799)
      VIII  National Transportation Safety Board (Parts 800--999)
         X  Surface Transportation Board, Department of 
                Transportation (Parts 1000--1399)
        XI  Research and Innovative Technology Administration, 
                Department of Transportation (Parts 1400--1499) 
                [Reserved]
       XII  Transportation Security Administration, Department of 
                Homeland Security (Parts 1500--1699)

                   Title 50--Wildlife and Fisheries

         I  United States Fish and Wildlife Service, Department of 
                the Interior (Parts 1--199)
        II  National Marine Fisheries Service, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 200--299)
       III  International Fishing and Related Activities (Parts 
                300--399)
        IV  Joint Regulations (United States Fish and Wildlife 
                Service, Department of the Interior and National 
                Marine Fisheries Service, National Oceanic and 
                Atmospheric Administration, Department of 
                Commerce); Endangered Species Committee 
                Regulations (Parts 400--499)
         V  Marine Mammal Commission (Parts 500--599)
        VI  Fishery Conservation and Management, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 600--699)

[[Page 353]]





           Alphabetical List of Agencies Appearing in the CFR




                     (Revised as of October 1, 2014)

                                                  CFR Title, Subtitle or 
                     Agency                               Chapter

Administrative Committee of the Federal Register  1, I
Administrative Conference of the United States    1, III
Advisory Council on Historic Preservation         36, VIII
Advocacy and Outreach, Office of                  7, XXV
Afghanistan Reconstruction, Special Inspector     22, LXXXIII
     General for
African Development Foundation                    22, XV
  Federal Acquisition Regulation                  48, 57
Agency for International Development              2, VII; 22, II
  Federal Acquisition Regulation                  48, 7
Agricultural Marketing Service                    7, I, IX, X, XI
Agricultural Research Service                     7, V
Agriculture Department                            2, IV; 5, LXXIII
  Advocacy and Outreach, Office of                7, XXV
  Agricultural Marketing Service                  7, I, IX, X, XI
  Agricultural Research Service                   7, V
  Animal and Plant Health Inspection Service      7, III; 9, I
  Chief Financial Officer, Office of              7, XXX
  Commodity Credit Corporation                    7, XIV
  Economic Research Service                       7, XXXVII
  Energy Policy and New Uses, Office of           2, IX; 7, XXIX
  Environmental Quality, Office of                7, XXXI
  Farm Service Agency                             7, VII, XVIII
  Federal Acquisition Regulation                  48, 4
  Federal Crop Insurance Corporation              7, IV
  Food and Nutrition Service                      7, II
  Food Safety and Inspection Service              9, III
  Foreign Agricultural Service                    7, XV
  Forest Service                                  36, II
  Grain Inspection, Packers and Stockyards        7, VIII; 9, II
       Administration
  Information Resources Management, Office of     7, XXVII
  Inspector General, Office of                    7, XXVI
  National Agricultural Library                   7, XLI
  National Agricultural Statistics Service        7, XXXVI
  National Institute of Food and Agriculture      7, XXXIV
  Natural Resources Conservation Service          7, VI
  Operations, Office of                           7, XXVIII
  Procurement and Property Management, Office of  7, XXXII
  Rural Business-Cooperative Service              7, XVIII, XLII, L
  Rural Development Administration                7, XLII
  Rural Housing Service                           7, XVIII, XXXV, L
  Rural Telephone Bank                            7, XVI
  Rural Utilities Service                         7, XVII, XVIII, XLII, L
  Secretary of Agriculture, Office of             7, Subtitle A
  Transportation, Office of                       7, XXXIII
  World Agricultural Outlook Board                7, XXXVIII
Air Force Department                              32, VII
  Federal Acquisition Regulation Supplement       48, 53
Air Transportation Stabilization Board            14, VI
Alcohol and Tobacco Tax and Trade Bureau          27, I
Alcohol, Tobacco, Firearms, and Explosives,       27, II
     Bureau of
AMTRAK                                            49, VII
American Battle Monuments Commission              36, IV
American Indians, Office of the Special Trustee   25, VII

[[Page 354]]

Animal and Plant Health Inspection Service        7, III; 9, I
Appalachian Regional Commission                   5, IX
Architectural and Transportation Barriers         36, XI
     Compliance Board
Arctic Research Commission                        45, XXIII
Armed Forces Retirement Home                      5, XI
Army Department                                   32, V
  Engineers, Corps of                             33, II; 36, III
  Federal Acquisition Regulation                  48, 51
Bilingual Education and Minority Languages        34, V
     Affairs, Office of
Blind or Severely Disabled, Committee for         41, 51
     Purchase from People Who Are
Broadcasting Board of Governors                   22, V
  Federal Acquisition Regulation                  48, 19
Bureau of Ocean Energy Management, Regulation,    30, II
     and Enforcement
Census Bureau                                     15, I
Centers for Medicare & Medicaid Services          42, IV
Central Intelligence Agency                       32, XIX
Chemical Safety and Hazardous Investigation       40, VI
     Board
Chief Financial Officer, Office of                7, XXX
Child Support Enforcement, Office of              45, III
Children and Families, Administration for         45, II, III, IV, X
Civil Rights, Commission on                       5, LXVIII; 45, VII
Civil Rights, Office for                          34, I
Council of the Inspectors General on Integrity    5, XCVIII
     and Efficiency
Court Services and Offender Supervision Agency    5, LXX
     for the District of Columbia
Coast Guard                                       33, I; 46, I; 49, IV
Coast Guard (Great Lakes Pilotage)                46, III
Commerce Department                               2, XIII; 44, IV; 50, VI
  Census Bureau                                   15, I
  Economic Analysis, Bureau of                    15, VIII
  Economic Development Administration             13, III
  Emergency Management and Assistance             44, IV
  Federal Acquisition Regulation                  48, 13
  Foreign-Trade Zones Board                       15, IV
  Industry and Security, Bureau of                15, VII
  International Trade Administration              15, III; 19, III
  National Institute of Standards and Technology  15, II
  National Marine Fisheries Service               50, II, IV
  National Oceanic and Atmospheric                15, IX; 50, II, III, IV, 
       Administration                             VI
  National Telecommunications and Information     15, XXIII; 47, III, IV
       Administration
  National Weather Service                        15, IX
  Patent and Trademark Office, United States      37, I
  Productivity, Technology and Innovation,        37, IV
       Assistant Secretary for
  Secretary of Commerce, Office of                15, Subtitle A
  Technology Administration                       15, XI
  Technology Policy, Assistant Secretary for      37, IV
Commercial Space Transportation                   14, III
Commodity Credit Corporation                      7, XIV
Commodity Futures Trading Commission              5, XLI; 17, I
Community Planning and Development, Office of     24, V, VI
     Assistant Secretary for
Community Services, Office of                     45, X
Comptroller of the Currency                       12, I
Construction Industry Collective Bargaining       29, IX
     Commission
Consumer Financial Protection Bureau              5, LXXXIV; 12, X
Consumer Product Safety Commission                5, LXXI; 16, II
Copyright Royalty Board                           37, III
Corporation for National and Community Service    2, XXII; 45, XII, XXV
Cost Accounting Standards Board                   48, 99
Council on Environmental Quality                  40, V
Court Services and Offender Supervision Agency    5, LXX; 28, VIII
     for the District of Columbia
Customs and Border Protection                     19, I

[[Page 355]]

Defense Contract Audit Agency                     32, I
Defense Department                                2, XI; 5, XXVI; 32, 
                                                  Subtitle A; 40, VII
  Advanced Research Projects Agency               32, I
  Air Force Department                            32, VII
  Army Department                                 32, V; 33, II; 36, III, 
                                                  48, 51
  Defense Acquisition Regulations System          48, 2
  Defense Intelligence Agency                     32, I
  Defense Logistics Agency                        32, I, XII; 48, 54
  Engineers, Corps of                             33, II; 36, III
  National Imagery and Mapping Agency             32, I
  Navy Department                                 32, VI; 48, 52
  Secretary of Defense, Office of                 2, XI; 32, I
Defense Contract Audit Agency                     32, I
Defense Intelligence Agency                       32, I
Defense Logistics Agency                          32, XII; 48, 54
Defense Nuclear Facilities Safety Board           10, XVII
Delaware River Basin Commission                   18, III
District of Columbia, Court Services and          5, LXX; 28, VIII
     Offender Supervision Agency for the
Drug Enforcement Administration                   21, II
East-West Foreign Trade Board                     15, XIII
Economic Analysis, Bureau of                      15, VIII
Economic Development Administration               13, III
Economic Research Service                         7, XXXVII
Education, Department of                          2, XXXIV; 5, LIII
  Bilingual Education and Minority Languages      34, V
       Affairs, Office of
  Civil Rights, Office for                        34, I
  Educational Research and Improvement, Office    34, VII
       of
  Elementary and Secondary Education, Office of   34, II
  Federal Acquisition Regulation                  48, 34
  Postsecondary Education, Office of              34, VI
  Secretary of Education, Office of               34, Subtitle A
  Special Education and Rehabilitative Services,  34, III
       Office of
  Vocational and Adult Education, Office of       34, IV
Educational Research and Improvement, Office of   34, VII
Election Assistance Commission                    2, LVIII; 11, II
Elementary and Secondary Education, Office of     34, II
Emergency Oil and Gas Guaranteed Loan Board       13, V
Emergency Steel Guarantee Loan Board              13, IV
Employee Benefits Security Administration         29, XXV
Employees' Compensation Appeals Board             20, IV
Employees Loyalty Board                           5, V
Employment and Training Administration            20, V
Employment Standards Administration               20, VI
Endangered Species Committee                      50, IV
Energy, Department of                             2, IX; 5, XXIII; 10, II, 
                                                  III, X
  Federal Acquisition Regulation                  48, 9
  Federal Energy Regulatory Commission            5, XXIV; 18, I
  Property Management Regulations                 41, 109
Energy, Office of                                 7, XXIX
Engineers, Corps of                               33, II; 36, III
Engraving and Printing, Bureau of                 31, VI
Environmental Protection Agency                   2, XV; 5, LIV; 40, I, IV, 
                                                  VII
  Federal Acquisition Regulation                  48, 15
  Property Management Regulations                 41, 115
Environmental Quality, Office of                  7, XXXI
Equal Employment Opportunity Commission           5, LXII; 29, XIV
Equal Opportunity, Office of Assistant Secretary  24, I
     for
Executive Office of the President                 3, I
  Administration, Office of                       5, XV
  Environmental Quality, Council on               40, V
  Management and Budget, Office of                2, Subtitle A; 5, III, 
                                                  LXXVII; 14, VI; 48, 99

[[Page 356]]

  National Drug Control Policy, Office of         21, III
  National Security Council                       32, XXI; 47, 2
  Presidential Documents                          3
  Science and Technology Policy, Office of        32, XXIV; 47, II
  Trade Representative, Office of the United      15, XX
       States
Export-Import Bank of the United States           2, XXXV; 5, LII; 12, IV
Family Assistance, Office of                      45, II
Farm Credit Administration                        5, XXXI; 12, VI
Farm Credit System Insurance Corporation          5, XXX; 12, XIV
Farm Service Agency                               7, VII, XVIII
Federal Acquisition Regulation                    48, 1
Federal Aviation Administration                   14, I
  Commercial Space Transportation                 14, III
Federal Claims Collection Standards               31, IX
Federal Communications Commission                 5, XXIX; 47, I
Federal Contract Compliance Programs, Office of   41, 60
Federal Crop Insurance Corporation                7, IV
Federal Deposit Insurance Corporation             5, XXII; 12, III
Federal Election Commission                       5, XXXVII; 11, I
Federal Emergency Management Agency               44, I
Federal Employees Group Life Insurance Federal    48, 21
     Acquisition Regulation
Federal Employees Health Benefits Acquisition     48, 16
     Regulation
Federal Energy Regulatory Commission              5, XXIV; 18, I
Federal Financial Institutions Examination        12, XI
     Council
Federal Financing Bank                            12, VIII
Federal Highway Administration                    23, I, II
Federal Home Loan Mortgage Corporation            1, IV
Federal Housing Enterprise Oversight Office       12, XVII
Federal Housing Finance Agency                    5, LXXX; 12, XII
Federal Housing Finance Board                     12, IX
Federal Labor Relations Authority                 5, XIV, XLIX; 22, XIV
Federal Law Enforcement Training Center           31, VII
Federal Management Regulation                     41, 102
Federal Maritime Commission                       46, IV
Federal Mediation and Conciliation Service        29, XII
Federal Mine Safety and Health Review Commission  5, LXXIV; 29, XXVII
Federal Motor Carrier Safety Administration       49, III
Federal Prison Industries, Inc.                   28, III
Federal Procurement Policy Office                 48, 99
Federal Property Management Regulations           41, 101
Federal Railroad Administration                   49, II
Federal Register, Administrative Committee of     1, I
Federal Register, Office of                       1, II
Federal Reserve System                            12, II
  Board of Governors                              5, LVIII
Federal Retirement Thrift Investment Board        5, VI, LXXVI
Federal Service Impasses Panel                    5, XIV
Federal Trade Commission                          5, XLVII; 16, I
Federal Transit Administration                    49, VI
Federal Travel Regulation System                  41, Subtitle F
Financial Crimes Enforcement Network              31, X
Financial Research Office                         12, XVI
Financial Stability Oversight Council             12, XIII
Fine Arts, Commission on                          45, XXI
Fiscal Service                                    31, II
Fish and Wildlife Service, United States          50, I, IV
Food and Drug Administration                      21, I
Food and Nutrition Service                        7, II
Food Safety and Inspection Service                9, III
Foreign Agricultural Service                      7, XV
Foreign Assets Control, Office of                 31, V
Foreign Claims Settlement Commission of the       45, V
     United States
Foreign Service Grievance Board                   22, IX
Foreign Service Impasse Disputes Panel            22, XIV
Foreign Service Labor Relations Board             22, XIV
Foreign-Trade Zones Board                         15, IV

[[Page 357]]

Forest Service                                    36, II
General Services Administration                   5, LVII; 41, 105
  Contract Appeals, Board of                      48, 61
  Federal Acquisition Regulation                  48, 5
  Federal Management Regulation                   41, 102
  Federal Property Management Regulations         41, 101
  Federal Travel Regulation System                41, Subtitle F
  General                                         41, 300
  Payment From a Non-Federal Source for Travel    41, 304
       Expenses
  Payment of Expenses Connected With the Death    41, 303
       of Certain Employees
  Relocation Allowances                           41, 302
  Temporary Duty (TDY) Travel Allowances          41, 301
Geological Survey                                 30, IV
Government Accountability Office                  4, I
Government Ethics, Office of                      5, XVI
Government National Mortgage Association          24, III
Grain Inspection, Packers and Stockyards          7, VIII; 9, II
     Administration
Gulf Coast Ecosystem Restoration Council          40, VIII
Harry S. Truman Scholarship Foundation            45, XVIII
Health and Human Services, Department of          2, III; 5, XLV; 45, 
                                                  Subtitle A,
  Centers for Medicare & Medicaid Services        42, IV
  Child Support Enforcement, Office of            45, III
  Children and Families, Administration for       45, II, III, IV, X
  Community Services, Office of                   45, X
  Family Assistance, Office of                    45, II
  Federal Acquisition Regulation                  48, 3
  Food and Drug Administration                    21, I
  Human Development Services, Office of           45, XIII
  Indian Health Service                           25, V
  Inspector General (Health Care), Office of      42, V
  Public Health Service                           42, I
  Refugee Resettlement, Office of                 45, IV
Homeland Security, Department of                  2, XXX; 6, I; 8, I
  Coast Guard                                     33, I; 46, I; 49, IV
  Coast Guard (Great Lakes Pilotage)              46, III
  Customs and Border Protection                   19, I
  Federal Emergency Management Agency             44, I
  Human Resources Management and Labor Relations  5, XCVII
       Systems
  Immigration and Customs Enforcement Bureau      19, IV
  Transportation Security Administration          49, XII
HOPE for Homeowners Program, Board of Directors   24, XXIV
     of
Housing and Urban Development, Department of      2, XXIV; 5, LXV; 24, 
                                                  Subtitle B
  Community Planning and Development, Office of   24, V, VI
       Assistant Secretary for
  Equal Opportunity, Office of Assistant          24, I
       Secretary for
  Federal Acquisition Regulation                  48, 24
  Federal Housing Enterprise Oversight, Office    12, XVII
       of
  Government National Mortgage Association        24, III
  Housing--Federal Housing Commissioner, Office   24, II, VIII, X, XX
       of Assistant Secretary for
  Housing, Office of, and Multifamily Housing     24, IV
       Assistance Restructuring, Office of
  Inspector General, Office of                    24, XII
  Public and Indian Housing, Office of Assistant  24, IX
       Secretary for
  Secretary, Office of                            24, Subtitle A, VII
Housing--Federal Housing Commissioner, Office of  24, II, VIII, X, XX
     Assistant Secretary for
Housing, Office of, and Multifamily Housing       24, IV
     Assistance Restructuring, Office of
Human Development Services, Office of             45, XIII
Immigration and Customs Enforcement Bureau        19, IV
Immigration Review, Executive Office for          8, V
Independent Counsel, Office of                    28, VII

[[Page 358]]

Indian Affairs, Bureau of                         25, I, V
Indian Affairs, Office of the Assistant           25, VI
     Secretary
Indian Arts and Crafts Board                      25, II
Indian Health Service                             25, V
Industry and Security, Bureau of                  15, VII
Information Resources Management, Office of       7, XXVII
Information Security Oversight Office, National   32, XX
     Archives and Records Administration
Inspector General
  Agriculture Department                          7, XXVI
  Health and Human Services Department            42, V
  Housing and Urban Development Department        24, XII, XV
Institute of Peace, United States                 22, XVII
Inter-American Foundation                         5, LXIII; 22, X
Interior Department                               2, XIV
  American Indians, Office of the Special         25, VII
       Trustee
  Bureau of Ocean Energy Management, Regulation,  30, II
       and Enforcement
  Endangered Species Committee                    50, IV
  Federal Acquisition Regulation                  48, 14
  Federal Property Management Regulations System  41, 114
  Fish and Wildlife Service, United States        50, I, IV
  Geological Survey                               30, IV
  Indian Affairs, Bureau of                       25, I, V
  Indian Affairs, Office of the Assistant         25, VI
       Secretary
  Indian Arts and Crafts Board                    25, II
  Land Management, Bureau of                      43, II
  National Indian Gaming Commission               25, III
  National Park Service                           36, I
  Natural Resource Revenue, Office of             30, XII
  Ocean Energy Management, Bureau of              30, V
  Reclamation, Bureau of                          43, I
  Secretary of the Interior, Office of            2, XIV; 43, Subtitle A
  Surface Mining Reclamation and Enforcement,     30, VII
       Office of
Internal Revenue Service                          26, I
International Boundary and Water Commission,      22, XI
     United States and Mexico, United States 
     Section
International Development, United States Agency   22, II
     for
  Federal Acquisition Regulation                  48, 7
International Development Cooperation Agency,     22, XII
     United States
International Joint Commission, United States     22, IV
     and Canada
International Organizations Employees Loyalty     5, V
     Board
International Trade Administration                15, III; 19, III
International Trade Commission, United States     19, II
Interstate Commerce Commission                    5, XL
Investment Security, Office of                    31, VIII
James Madison Memorial Fellowship Foundation      45, XXIV
Japan-United States Friendship Commission         22, XVI
Joint Board for the Enrollment of Actuaries       20, VIII
Justice Department                                2, XXVIII; 5, XXVIII; 28, 
                                                  I, XI; 40, IV
  Alcohol, Tobacco, Firearms, and Explosives,     27, II
       Bureau of
  Drug Enforcement Administration                 21, II
  Federal Acquisition Regulation                  48, 28
  Federal Claims Collection Standards             31, IX
  Federal Prison Industries, Inc.                 28, III
  Foreign Claims Settlement Commission of the     45, V
       United States
  Immigration Review, Executive Office for        8, V
  Offices of Independent Counsel                  28, VI
  Prisons, Bureau of                              28, V
  Property Management Regulations                 41, 128
Labor Department                                  5, XLII
  Employee Benefits Security Administration       29, XXV
  Employees' Compensation Appeals Board           20, IV
  Employment and Training Administration          20, V

[[Page 359]]

  Employment Standards Administration             20, VI
  Federal Acquisition Regulation                  48, 29
  Federal Contract Compliance Programs, Office    41, 60
       of
  Federal Procurement Regulations System          41, 50
  Labor-Management Standards, Office of           29, II, IV
  Mine Safety and Health Administration           30, I
  Occupational Safety and Health Administration   29, XVII
  Office of Workers' Compensation Programs        20, VII
  Public Contracts                                41, 50
  Secretary of Labor, Office of                   29, Subtitle A
  Veterans' Employment and Training Service,      41, 61; 20, IX
       Office of the Assistant Secretary for
  Wage and Hour Division                          29, V
  Workers' Compensation Programs, Office of       20, I
Labor-Management Standards, Office of             29, II, IV
Land Management, Bureau of                        43, II
Legal Services Corporation                        45, XVI
Library of Congress                               36, VII
  Copyright Royalty Board                         37, III
  U.S. Copyright Office                           37, II
Local Television Loan Guarantee Board             7, XX
Management and Budget, Office of                  5, III, LXXVII; 14, VI; 
                                                  48, 99
Marine Mammal Commission                          50, V
Maritime Administration                           46, II
Merit Systems Protection Board                    5, II, LXIV
Micronesian Status Negotiations, Office for       32, XXVII
Military Compensation and Retirement              5, XCIX
     Modernization Commission
Millennium Challenge Corporation                  22, XIII
Mine Safety and Health Administration             30, I
Minority Business Development Agency              15, XIV
Miscellaneous Agencies                            1, IV
Monetary Offices                                  31, I
Morris K. Udall Scholarship and Excellence in     36, XVI
     National Environmental Policy Foundation
Museum and Library Services, Institute of         2, XXXI
National Aeronautics and Space Administration     2, XVIII; 5, LIX; 14, V
  Federal Acquisition Regulation                  48, 18
National Agricultural Library                     7, XLI
National Agricultural Statistics Service          7, XXXVI
National and Community Service, Corporation for   2, XXII; 45, XII, XXV
National Archives and Records Administration      2, XXVI; 5, LXVI; 36, XII
  Information Security Oversight Office           32, XX
National Capital Planning Commission              1, IV
National Commission for Employment Policy         1, IV
National Commission on Libraries and Information  45, XVII
     Science
National Council on Disability                    34, XII
National Counterintelligence Center               32, XVIII
National Credit Union Administration              5, LXXXVI; 12, VII
National Crime Prevention and Privacy Compact     28, IX
     Council
National Drug Control Policy, Office of           21, III
National Endowment for the Arts                   2, XXXII
National Endowment for the Humanities             2, XXXIII
National Foundation on the Arts and the           45, XI
     Humanities
National Highway Traffic Safety Administration    23, II, III; 47, VI; 49, V
National Imagery and Mapping Agency               32, I
National Indian Gaming Commission                 25, III
National Institute for Literacy                   34, XI
National Institute of Food and Agriculture        7, XXXIV
National Institute of Standards and Technology    15, II
National Intelligence, Office of Director of      32, XVII
National Labor Relations Board                    5, LXI; 29, I
National Marine Fisheries Service                 50, II, IV
National Mediation Board                          29, X
National Oceanic and Atmospheric Administration   15, IX; 50, II, III, IV, 
                                                  VI

[[Page 360]]

National Park Service                             36, I
National Railroad Adjustment Board                29, III
National Railroad Passenger Corporation (AMTRAK)  49, VII
National Science Foundation                       2, XXV; 5, XLIII; 45, VI
  Federal Acquisition Regulation                  48, 25
National Security Council                         32, XXI
National Security Council and Office of Science   47, II
     and Technology Policy
National Telecommunications and Information       15, XXIII; 47, III, IV
     Administration
National Transportation Safety Board              49, VIII
Natural Resources Conservation Service            7, VI
Natural Resource Revenue, Office of               30, XII
Navajo and Hopi Indian Relocation, Office of      25, IV
Navy Department                                   32, VI
  Federal Acquisition Regulation                  48, 52
Neighborhood Reinvestment Corporation             24, XXV
Northeast Interstate Low-Level Radioactive Waste  10, XVIII
     Commission
Nuclear Regulatory Commission                     2, XX; 5, XLVIII; 10, I
  Federal Acquisition Regulation                  48, 20
Occupational Safety and Health Administration     29, XVII
Occupational Safety and Health Review Commission  29, XX
Ocean Energy Management, Bureau of                30, V
Offices of Independent Counsel                    28, VI
Office of Workers' Compensation Programs          20, VII
Oklahoma City National Memorial Trust             36, XV
Operations Office                                 7, XXVIII
Overseas Private Investment Corporation           5, XXXIII; 22, VII
Patent and Trademark Office, United States        37, I
Payment From a Non-Federal Source for Travel      41, 304
     Expenses
Payment of Expenses Connected With the Death of   41, 303
     Certain Employees
Peace Corps                                       2, XXXVII; 22, III
Pennsylvania Avenue Development Corporation       36, IX
Pension Benefit Guaranty Corporation              29, XL
Personnel Management, Office of                   5, I, XXXV; 45, VIII
  Human Resources Management and Labor Relations  5, XCVII
       Systems, Department of Homeland Security
  Federal Acquisition Regulation                  48, 17
  Federal Employees Group Life Insurance Federal  48, 21
       Acquisition Regulation
  Federal Employees Health Benefits Acquisition   48, 16
       Regulation
Pipeline and Hazardous Materials Safety           49, I
     Administration
Postal Regulatory Commission                      5, XLVI; 39, III
Postal Service, United States                     5, LX; 39, I
Postsecondary Education, Office of                34, VI
President's Commission on White House             1, IV
     Fellowships
Presidential Documents                            3
Presidio Trust                                    36, X
Prisons, Bureau of                                28, V
Privacy and Civil Liberties Oversight Board       6, X
Procurement and Property Management, Office of    7, XXXII
Productivity, Technology and Innovation,          37, IV
     Assistant Secretary
Public Contracts, Department of Labor             41, 50
Public and Indian Housing, Office of Assistant    24, IX
     Secretary for
Public Health Service                             42, I
Railroad Retirement Board                         20, II
Reclamation, Bureau of                            43, I
Recovery Accountability and Transparency Board    4, II
Refugee Resettlement, Office of                   45, IV
Relocation Allowances                             41, 302
Research and Innovative Technology                49, XI
     Administration
Rural Business-Cooperative Service                7, XVIII, XLII, L
Rural Development Administration                  7, XLII
Rural Housing Service                             7, XVIII, XXXV, L

[[Page 361]]

Rural Telephone Bank                              7, XVI
Rural Utilities Service                           7, XVII, XVIII, XLII, L
Saint Lawrence Seaway Development Corporation     33, IV
Science and Technology Policy, Office of          32, XXIV
Science and Technology Policy, Office of, and     47, II
     National Security Council
Secret Service                                    31, IV
Securities and Exchange Commission                5, XXXIV; 17, II
Selective Service System                          32, XVI
Small Business Administration                     2, XXVII; 13, I
Smithsonian Institution                           36, V
Social Security Administration                    2, XXIII; 20, III; 48, 23
Soldiers' and Airmen's Home, United States        5, XI
Special Counsel, Office of                        5, VIII
Special Education and Rehabilitative Services,    34, III
     Office of
State Department                                  2, VI; 22, I; 28, XI
  Federal Acquisition Regulation                  48, 6
Surface Mining Reclamation and Enforcement,       30, VII
     Office of
Surface Transportation Board                      49, X
Susquehanna River Basin Commission                18, VIII
Technology Administration                         15, XI
Technology Policy, Assistant Secretary for        37, IV
Tennessee Valley Authority                        5, LXIX; 18, XIII
Thrift Supervision Office, Department of the      12, V
     Treasury
Trade Representative, United States, Office of    15, XX
Transportation, Department of                     2, XII; 5, L
  Commercial Space Transportation                 14, III
  Contract Appeals, Board of                      48, 63
  Emergency Management and Assistance             44, IV
  Federal Acquisition Regulation                  48, 12
  Federal Aviation Administration                 14, I
  Federal Highway Administration                  23, I, II
  Federal Motor Carrier Safety Administration     49, III
  Federal Railroad Administration                 49, II
  Federal Transit Administration                  49, VI
  Maritime Administration                         46, II
  National Highway Traffic Safety Administration  23, II, III; 47, IV; 49, V
  Pipeline and Hazardous Materials Safety         49, I
       Administration
  Saint Lawrence Seaway Development Corporation   33, IV
  Secretary of Transportation, Office of          14, II; 49, Subtitle A
  Surface Transportation Board                    49, X
  Transportation Statistics Bureau                49, XI
Transportation, Office of                         7, XXXIII
Transportation Security Administration            49, XII
Transportation Statistics Bureau                  49, XI
Travel Allowances, Temporary Duty (TDY)           41, 301
Treasury Department                               5, XXI; 12, XV; 17, IV; 
                                                  31, IX
  Alcohol and Tobacco Tax and Trade Bureau        27, I
  Community Development Financial Institutions    12, XVIII
       Fund
  Comptroller of the Currency                     12, I
  Customs and Border Protection                   19, I
  Engraving and Printing, Bureau of               31, VI
  Federal Acquisition Regulation                  48, 10
  Federal Claims Collection Standards             31, IX
  Federal Law Enforcement Training Center         31, VII
  Financial Crimes Enforcement Network            31, X
  Fiscal Service                                  31, II
  Foreign Assets Control, Office of               31, V
  Internal Revenue Service                        26, I
  Investment Security, Office of                  31, VIII
  Monetary Offices                                31, I
  Secret Service                                  31, IV
  Secretary of the Treasury, Office of            31, Subtitle A
  Thrift Supervision, Office of                   12, V
Truman, Harry S. Scholarship Foundation           45, XVIII
United States and Canada, International Joint     22, IV
   Commission
[[Page 362]]

United States and Mexico, International Boundary  22, XI
     and Water Commission, United States Section
U.S. Copyright Office                             37, II
Utah Reclamation Mitigation and Conservation      43, III
     Commission
Veterans Affairs Department                       2, VIII; 38, I
  Federal Acquisition Regulation                  48, 8
Veterans' Employment and Training Service,        41, 61; 20, IX
     Office of the Assistant Secretary for
Vice President of the United States, Office of    32, XXVIII
Vocational and Adult Education, Office of         34, IV
Wage and Hour Division                            29, V
Water Resources Council                           18, VI
Workers' Compensation Programs, Office of         20, I
World Agricultural Outlook Board                  7, XXXVIII

[[Page 363]]



List of CFR Sections Affected



All changes in this volume of the Code of Federal Regulations (CFR) that 
were made by documents published in the Federal Register since January 
1, 2009 are enumerated in the following list. Entries indicate the 
nature of the changes effected. Page numbers refer to Federal Register 
pages. The user should consult the entries for chapters, parts and 
subparts as well as sections for revisions.
For changes to this volume of the CFR prior to this listing, consult the 
annual edition of the monthly List of CFR Sections Affected (LSA). The 
LSA is available at www.fdsys.gov. For changes to this volume of the CFR 
prior to 2001, see the ``List of CFR Sections Affected, 1949-1963, 1964-
1972, 1973-1985, and 1986-2000'' published in 11 separate volumes. The 
``List of CFR Sections Affected 1986-2000'' is available at 
www.fdsys.gov.

                                  2009

46 CFR
                                                                   74 FR
                                                                    Page
Chapter I
147 Nomenclature changes...........................................49235
147.5 Amended......................................................49235
148 Nomenclature change............................................49235
148.01-9 (a) amended...............................................49235
148.01-11 (b)(2) amended...........................................49236
150 Tables I and II amended........................................49236
151 Nomenclature change............................................49236
151.03-53 Introductory text amended................................11266
153 Nomenclature change............................................49236
153.4 (a) amended..................................................49236
153.9 (b) amended..................................................49236
154 Nomenclature change............................................49236
154.1 (a) amended..................................................49236
154.22 (a) amended.................................................49236
154.34 Amended.....................................................49236

                                  2010

46 CFR
                                                                   75 FR
                                                                    Page
Chapter I
148 Revised........................................................64591
150 Table 1 amended................................................60003
154.30 Removed.....................................................60003

                                  2011

46 CFR
                                                                   76 FR
                                                                    Page
Chapter I
148 Regulation at 75 FR 64591 confirmed.............................8658

                                  2012

46 CFR
                                                                   77 FR
                                                                    Page
Chapter I
147.1 Heading revised; (d) added...................................33885
147.5 Amended......................................................59783
147.7 Revised......................................................33885
    (a) amended....................................................59783
147.9 (a) amended..................................................59783
147.40 Heading, (a) introductory text, (b) and (c) amended.........59783
147.45 (f)(4), (5) and (6) revised.................................33885
147.50 (d) amended.................................................59783
147.60 (a)(4) revised..............................................33886
    (c)(2) amended.................................................59783
147.66 Added.......................................................33886
147.67 Added.......................................................33886
148.3 Amended......................................................59783
148.5 (a) amended..................................................59783
148.8 (a) amended..................................................59783
148.15 (b) and (c) amended.........................................59783
148.25 (b) amended.................................................59783
148.30 Amended.....................................................59783
148.55 (b)(3) and (4) amended......................................59783
148.115 (b) and (c) amended........................................59783
148.245 (a)(1) amended.............................................59783
148.250 (a)(1) amended.............................................59783

[[Page 364]]

148.310 (i) amended................................................59783
150.140 Amended....................................................59783
150.150 Introductory text amended..................................59783
150.160 (a) amended................................................59783
150 Table I Note 1 amended.........................................59783
    Table II Note 1 and Appendix III amended.......................59784
151.50-20 (i) amended..............................................59784
151.50-22 (d) amended..............................................59784
151.50-23 (e) amended..............................................59784
151.50-36 (b) amended..............................................59784
151.50-50 (n) amended..............................................59784
151.50-75 Amended..................................................59784
151.50-76 (b), (c) and (g) amended.................................59784
151.50-77 (a) amended..............................................59784
151.50-80 (c) amended..............................................59784
151.50-84 (e)(2) amended...........................................59784
153.2 Amended......................................................59784
153.4 (a) amended..................................................59784
153.7 (b)(4) introductory text, (iii), (c)(3) introductory text, 
        (4) introductory text, (5) and (6) amended.................59784
153.10 (a)(1) introductory text, (3) and (b) introductory text 
        amended....................................................59784
153.15 (b)(4) amended..............................................59784
153.16 (a) amended.................................................59784
153.219 (b)(3) amended.............................................59784
153.250 Amended....................................................59784
153.336 (a)(3) amended.............................................59784
153.353 (c) amended................................................59784
153.365 (a)(3) amended.............................................59784
153.407 (b) amended................................................59784
153.460 (b) and (c) amended........................................59784
153.490 (b)(1) amended.............................................59784
153.491 (b)(3) amended.............................................59784
153.525 (d)(3) amended.............................................59784
153.530 (c) introductory text, (1), (2) and (o)(1) amended.........59784
153.556 (a) amended................................................59784
153.557 (a)(3) and (b) amended.....................................59784
153.558 (b) amended................................................59785
153.921 Amended....................................................59785
153.935a (a)(2) amended............................................59785
153.1010 (b)(4) amended............................................59785
153.1011 (a)(2) and (3) amended....................................59785
153.1025 (c) amended...............................................59785
153.1052 Amended...................................................59785
153.1101 (c) introductory text amended.............................59785
153.1119 (c)(1), (2)(viii), (3) and (e) amended....................59785
153.1502 (a) amended...............................................59785
153.1608 Note amended..............................................59785
153 Table 1 footnote h amended.....................................59785
154.1 (a) amended..................................................59785
154.12 (c)(4) and (d)(4) amended...................................59785
154.32 (a) and (b) amended.........................................59785
154.34 Amended.....................................................59785
154.170 (b)(1) and (2) amended.....................................59785
154.172 (c) amended................................................59785
154.315 (b)(2) amended.............................................59785
154.350 (a) amended................................................59785
154.356 (c) amended................................................59785
154.405 (c) amended................................................59785
154.406 (c) amended................................................59785
154.409 (a) amended................................................59785
154.410 (a) and (b) amended........................................59785
154.411 Introductory text amended..................................59785
154.418 Amended....................................................59785
154.419 Amended....................................................59785
154.425 Amended....................................................59785
154.426 Amended....................................................59785
154.428 Amended....................................................59785
154.430 (b) amended................................................59785
154.431 (b) amended................................................59785
154.435 (a) amended................................................59785
154.436 Amended....................................................59785
154.438 (b) amended................................................59785
154.440 (a)(2) and (b) amended.....................................59785
154.447 (b) amended................................................59785
154.448 Introductory text amended..................................59785
154.449 Introductory text amended..................................59785
154.453 Amended....................................................59785
154.459 (b) and (c) amended........................................59785
154.467 Introductory text amended..................................59785
154.503 (e) amended................................................59785
154.516 Introductory text amended..................................59785
154.519 (a)(2) amended.............................................59785
154.520 Introductory text amended..................................59785
154.522 (a) amended................................................59785
154.524 (e) amended................................................59785
154.546 (a) amended................................................59785
154.610 (c) and (f) amended........................................59785
154.620 (b) amended................................................59785
154.630 (a) and (c) amended........................................59785
154.650 (d) and (e) amended........................................59785
154.655 (b) amended................................................59785
154.703 (b)(3) and (d)(2) amended..................................59785
154.709 (b) amended................................................59785
154.805 (e) amended................................................59785

[[Page 365]]

154.904 (a) amended................................................59785
154.908 (b) amended................................................59785
154.912 Amended....................................................59785
154.1005 (a) and (b) amended.......................................59785
154.1135 (a)(3) amended............................................59785
154.1335 (b)(1) amended............................................59785
154.1340 (c)(1) and (d) amended....................................59785
154.1345 (b)(2)(i) amended.........................................59785
154.1725 (a)(2), (4) and (b)(1) amended............................59785
154.735 (a) introductory text amended..............................59785
154.1755 Amended...................................................59785
154.1860 Amended...................................................59785

                                  2013

46 CFR
                                                                   78 FR
                                                                    Page
Chapter I
147.5 Revised......................................................60154
147.7 (a) amended..................................................60154
147.9 (a) amended..................................................60154
147.40 (a), (b) and (c) amended....................................60154
147.60 (c)(2) amended..............................................60154
147.95 (a) and (b)(2) revised......................................60154
148.3 Amended......................................................60154
148.8 (a) amended..................................................60154
148.115 (b) amended................................................60154
150 Note 1 table 1 amended.........................................60155
    Note 1 table 2 amended.........................................60155
    Appendix III amended...........................................60155
150.160 Regulation at 78 FR 50162 eff. date delayed to 1-16-14.....56837
    Regulation at 78 FR 50187 eff. date delayed to 1-16-14.........56837
    Regulation at 78 FR 50205 eff. date delayed to 1-16-14.........56837
150 Table I revised; interim.......................................50162
    Table II revised; interim......................................50187
    Appendix I revised; interim....................................50205
151.03-31 Amended..................................................60155
153.2 Amended......................................................60155
153.4 (b) revised; (c) added.......................................13251
    (a) amended....................................................60155
153.9 (b) amended..................................................60155
153 Table 2 revised; interim.......................................50208
    Regulation at 78 FR 50208 eff. date delayed to 1-16-14.........56837
154.1 (a) amended..................................................60155
154.22 (a) amended.................................................60155
154.34 Amended.....................................................60155
154.151 (c) amended................................................60155

                                  2014

  (Regulations published from January 1, 2014, through October 1, 2014)

46 CFR
                                                                   79 FR
                                                                    Page
Chapter I
150 Regulation at 78 FR 50162 eff. date delayed to 1-16-15..........2106
    Regulation at 78 FR 50187 eff. date delayed to 1-16-15..........2106
    Regulation at 78 FR 50205 eff. date delayed to 1-16-15..........2106
    Appendix III amended...........................................58284
151.04-5 (h) amended...............................................58284
151.50-23 (d) amended..............................................58284
151.50-31 (d) amended..............................................58284
151.50-79 (b)(1) amended...........................................58284
151.50-84 (e)(1) amended...........................................58284
153 Regulation at 78 FR 50208 eff. date delayed to 1-16-15..........2106
153.240 (b) amended................................................58284
153.330 (a) amended................................................58284
153.530 (b) amended................................................58284
153.940 (b)(2) amended.............................................58284
153.1052 Amended...................................................58284
153.1119 (c)(1) amended............................................58284
153.1602 Heading amended...........................................58284
154.406 (a)(4) amended.............................................58284
154.438 (a) amended................................................58284
154.453 Amended....................................................58284
154.470 (c) amended................................................58285
154.522 (a)(2) amended.............................................58285
154.902 (c)(2) and (d) amended.....................................58285
154.903 (b) amended................................................58285
154.1715 (b) amended...............................................58285
154.1725 (a)(4) amended............................................58285


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