[Federal Register Volume 59, Number 168 (Wednesday, August 31, 1994)]
[Unknown Section]
[Page 0]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 94-20717]


[[Page Unknown]]

[Federal Register: August 31, 1994]


_______________________________________________________________________

Part III





Department of Transportation





_______________________________________________________________________



Coast Guard



_______________________________________________________________________



46 CFR Parts 30, 150, 151 and 153




Upgrades to Bulk Hazardous Materials Tables; Final Rule
DEPARTMENT OF TRANSPORTATION

Coast Guard

46 CFR Parts 30, 150, 151, and 153

[CGD 94-900]
RIN 2115-AE73

 
Upgrades to Bulk Hazardous Materials Tables

AGENCY: Coast Guard, DOT.

ACTION: Final rule.

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

SUMMARY: The Coast Guard is amending its regulations on carriage of 
bulk hazardous materials. These amendments assign additional carriage 
requirements, a higher Pollution Category, or both to certain 
commodities already listed in the tables. These amendments are 
necessary to align the minimum requirements in the table with those 
approved by the International Maritime Organization (IMO) for inclusion 
in its Chemical Codes applicable to tankships. Additionally, the Coast 
Guard is making various revisions to correct past errors.

EFFECTIVE DATES:  September 30, 1994.

ADDRESSES: Unless otherwise indicated, documents referenced in this 
preamble are available for inspection or copying at the office of the 
Executive Secretary, Marine Safety Council (G-LRA/3406), U.S. Coast 
Guard Headquarters, 2100 Second Street SW., room 3406, Washington, DC 
20593-0001 between 8 a.m. and 3 p.m., Monday through Friday, except 
Federal holidays. The telephone number is (202) 267-1477.

FOR FURTHER INFORMATION CONTACT: Mr. Curtis G. Payne, Hazardous 
Materials Branch, (202) 267-1577.

SUPPLEMENTARY INFORMATION:

Drafting Information

    The principal persons involved in drafting this document are Mr. 
Curtis G. Payne, Project Manager, and Ms. Helen G. Boutrous, Project 
Counsel, Office of Chief Counsel.

Related Rulemakings

    On April 11, 1994, the Coast Guard published a final rule (FR) 
entitled Bulk Hazardous Materials in the Federal Register (59 FR 16999) 
updating its chemical tables to reflect the International Maritime 
Organization's (IMO's) final and provisional determinations, with the 
exception of ``upgrades'' to entries currently in the IMO Chemical 
Code.
    On October 17, 1991, the Coast Guard published a final rule 
entitled ``Benzene'' in the Federal Register (56 FR 52122) which became 
effective January 15, 1992. On December 13, 1991, the Coast Guard 
published a correction to that final rule entitled ``Benzene; 
Correction'' in the Federal Register (56 FR 65005) which became 
effective January 15, 1992.
    Elsewhere in this edition of the Federal Register, the Coast Guard 
is publishing a final rule concerning upgrades to the noxious liquid 
substances lists in 33 CFR 151.47 and 151.49 (CGD 94-901). Also in this 
edition of the Federal Register, a notice and request for comments (CGD 
94-902) is published concerning cargo entries the Coast Guard has 
reason to believe are obsolete.

Background and Purpose

    This rulemaking updates various Coast Guard hazardous materials 
tables in 46 CFR parts 30, 150, 151, and 153 to include ``upgrades'' to 
requirements authorized by Coast Guard regulations or international 
law. An ``upgrade'' means that a commodity is assigned additional 
carriage requirements, a higher Pollution Category (Pol. Cat.), or 
both. The upgrades assigned by this final rule were determined by the 
IMO for inclusion in the IMO Chemical Codes (``International Code for 
the Construction and Equipment of Ships Carrying Dangerous Chemicals in 
Bulk'' (IBC Code), and ``Code for the Construction and Equipment of 
Ships Carrying Dangerous Chemicals in Bulk'' (BCH Code)). Adoption of 
these upgrades in the Coast Guard regulations is necessary to ensure 
consistency with international law. These upgrades were included, for 
informational purposes, in an appendix to the Bulk Hazardous Materials 
NPRM published on May 20, 1993 (58 FR 29937). At that time, the IMO had 
determined the upgrades, but were not scheduled to become effective 
until July 1, 1994. The upgrades, with brief explanations where 
helpful, are shown in a table in the Discussion of Amendments section 
below. The corrections and editorial revisions included in this rule 
are also discussed below.

Discussion of Amendments

    (a) Benzene and benzene containing cargoes. Concurrent with the 
``upgrade'' actions, the IMO has revised the gauging requirement for 
benzene and benzene containing cargoes to ``closed''. This revision has 
been based upon the known human health hazards posed by the chemical 
benzene. Today's rulemaking incorporates this revision in both the 
Coast Guard's tankship table of minimum requirements, table 1, part 153 
as well as its tank barge table of minimum requirements, table 151.05, 
part 151. Compliance with the tankship requirements must be met as of 
the effective date of this rule, to coincide, as closely as possible, 
with the implementation of the amendment to the IMO Chemical Codes. 
However, compliance with the new tank barge requirements of this rule 
is not required until August 15, 1994.
    (b) Corrections to listed electrical hazard class and group.
    As indicated in the Table of Changes below, the currently listed 
electrical hazard class and group of various entries in table 151.05 of 
46 CFR part 151 are corrected. The entries below were identified by the 
Cargo Classification Working Group of the Chemical Transportation 
Advisory Committee (CTAC) 151 Subcommittee as having erroneous 
electrical hazard class-group listed in the tank barge table. The 
revised electrical hazard class and group listings shown below have 
been verified using the National Fire Protection Association's NFPA 
497M, ``Manual for Classification of Gases, Vapors and Dusts for 
Electrical Equipment in Hazardous (Classified) Locations,'' 1991, or 
the National Academy Press's NMAB 353-5, ``Classification of Gases, 
Liquids and Volatile Solids Relative to Explosion-Proof Electrical 
Equipment,'' 1982. These revisions merely correct errors contained in 
the informational electrical hazard class and group column in the table 
and represent no change in requirements for the industry.
    The electrical hazard class-group of the entries listed below from 
table 151.05, part 151 will be corrected as indicated:

------------------------------------------------------------------------
       Cargo name                Current                    New         
------------------------------------------------------------------------
Acetone cyanohydrin                 NA                      I-D         
Adiponitrile                        NA                      I-D         
N-Aminoethylpiperazine              I-D                     I-C         
Aniline                             NA                      I-D         
Dichloromethane                     NA                      I-D         
2,2'-Dichloroethyl ether            I-D                     I-C         
Ethanolamine                        NA                      I-D         
2-Ethylhexyl acrylate               NA                      I-D         
Ethylidene norbornene               I-C                     NA          
Formaldehyde solution               I-C                     I-B         
 (37% to 50%)                                                           
2-Methyl-5-ethylpyridine            NA                      I-D         
Methyl methacrylate                 NA                      I-D         
Phthalic anhydride                  NA                      I-D         
 (molten)                                                               
Phenol                              NA                      I-D         
1,2,3-Trichloropropane              NA                      I-D         
Toluene diisocyanate                NA                      I-D         
Triethanolamine                     NA                      I-C         
Triethylenetetramine                NA                      I-C         
Tetraethylenepentamine              NA                      I-C         
------------------------------------------------------------------------

    This rulemaking also makes other non-substantive editorial changes 
and corrections, including a correction to an error contained in the 
final rule entitled ``Bulk Hazardous Materials'' published April 11, 
1994, in the Federal Register. In revising the section heading to 
Sec. 153.560, the Coast Guard inadvertently revised the section number 
to incorrectly read as ``Sec.  153.60'' (59 FR 17028). This error is 
corrected in this final rule. The correct section number is 153.560.
    The Table of ``Upgrade'' Changes below lists all changes by the 
IMO, as ``upgrades'' to current entries in the IMO Chemical Codes and 
Coast Guard regulations with a brief explanation where helpful.

                                          Table of ``Upgrade'' Changes                                          
----------------------------------------------------------------------------------------------------------------
                 Cargo Name                                Pollution Category                                   
-------------------------------------------------------------------------------------------       Comments      
       Current                Proposed               Current                Proposed                            
----------------------------------------------------------------------------------------------------------------
(iso-, n-) Butyl       Butyl acetate (all           No change              No change        ....................
 acetate.               isomers).                                                                               
sec-Butyl acetate....  Butyl acetate (all               D                      C            46 CFR 30, Table    
                        isomers).                                                            30.25-1.           
iso-Butyl acrylate...  Butyl acrylate (all        Not applicable         Not applicable     46 CFR 151, Table   
                        isomers).                                                            151.05.            
n-Butyl acrylate.....  Butyl acrylate (all        Not applicable         Not applicable     46 CFR 151, Table   
                        isomers).                                                            151.05.            
(iso-, n-) Butyl       Butyl acrylate (all              D                      B            46 CFR 153, Table 1.
 acrylate.              isomers).                                                                               
n-Butyl butyrate.....  Butyl butyrate (all              C                      B                                
                        isomers).                                                                               
iso-Butyl isobutyrate  Butyl butyrate (all             [B]                     B                                
                        isomers).                                                                               
Calcium hypochlorite   No change............        No change              No change        46 CFR 153, Table 1:
 solution (15% or                                                                            Change in materials
 less).                                                                                      of construction.   
Calcium hypochlorite   No change............        No change              No change        46 CFR 153, Table 1:
 solution (more than                                                                         Change in materials
 15%).                                                                                       of construction.   
Crotonaldehyde.......  No change............            B                      A                                
Cumene...............  Propylbenzene (all               B                      A                                
                        isomers).                                                                               
2,4-                   No change............        No change              No change        46 CFR 153, Table 1:
 Dichlorophenoxyaceti                                                                        Materials of       
 c acid,                                                                                     construction       
 dimethylamine salt                                                                          requirement.       
 solution.                                                                                                      
2,4-                   No change............        No change              No change        46 CFR 153, Table 1:
 Dichlorophenoxyaceti                                                                        Materials of       
 c acid,                                                                                     construction       
 triisopropanolamine                                                                         requirement.       
 salt solution.                                                                                                 
Diethanolamine.......  No change............           III                     D                                
Diethylbenzene.......  No change............            C                      A            ....................
Diethylene glycol....  No change............           III                     D                                
Diethylene glycol      Poly(2-8)alkylene               III                     D                                
 butyl ether.           glycol monoalkyl(C1-                                                                    
                        C6) ether.                                                                              
Diethylene glycol      Poly(2-8)alkylene               III                     D                                
 ethyl ether.           glycol monoalkyl(C1-                                                                    
                        C6) ether.                                                                              
Dinitrotoluene         No change............            B                      A            46 CFR 153, Table 1:
 (molten).                                                                                   Additional         
                                                                                             requirements.      
Dodecyl diphenyl       No change............            B                      A            46 CFR 153, Table 1:
 ether disulfonate                                                                           Type III to II     
 solution.                                                                                   Cargo containment  
                                                                                             system; reduced    
                                                                                             requirements.      
Epichlorohydrin......  No change............            C                      A                                
2-Ethoxyethanol......  Ethylene glycol              No change              No change        46 CFR 30, Table    
                        monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylbenzene.........  No change............            C                      B                                
Ethylene glycol butyl  Ethylene glycol                 III                     D            46 CFR 30, Table    
 ether.                 monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylene glycol tert-  Ethylene glycol                 III                     D            46 CFR 30, Table    
 butyl ether.           monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylene glycol ethyl  Ethylene glycol              No change              No change        46 CFR 30, Table    
 ether.                 monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylene glycol        Ethylene glycol              No change              No change        46 CFR 30, Table    
 isopropyl ether.       monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylene glycol        Ethylene glycol              No change              No change        46 CFR 30, Table    
 methyl ether.          monoalkyl ethers.                                                    30.25-1: Delete    
                                                                                             from table (health 
                                                                                             safety hazards).   
Ethylene glycol        No change............            D                      C            46 CFR 153, Table 1:
 methyl ether acetate.                                                                       Add to table.      
Ethylene oxide (30%    No change............            D                      C                                
 or less), Propylene                                                                                            
 oxide mixture.                                                                                                 
2-Ethyl-3-             No change............            B                      A            46 CFR 153, Table 1:
 propylacrolein.                                                                             Reduced            
                                                                                             requirements.      
Isophorone             No change............        No change              No change        46 CFR 153, Table 1:
 diisocyanate.                                                                               Type III to II     
                                                                                             Cargo containment  
                                                                                             system.            
Metam sodium solution  No change............        No change              No change        46 CFR 153, Table 1:
                                                                                             Type III to II     
                                                                                             Cargo containment  
                                                                                             system.            
Methyl alcohol.......  No change............           III                     D                                
Motor fuel anti-knock  No change............        No change              No change        46 CFR 153, Table 1:
 compounds                                                                                   Type II to I Cargo 
 (containing lead                                                                            containment system.
 alkyls).                                                                                                       
(o-, p-)Nitrotoluene.  No change............            C                      B                                
Octyl acetate........  No change............            D                      C            46 CFR 153, Table 1:
                                                                                             Add to table.      
Pentane (all isomers)  No change............        No change              No change        46 CFR 153, Table 1:
                                                                                             Additional         
                                                                                             requirement.       
Pentene (all isomers)  No change............        No change              No change        46 CFR 153, Table 1:
                                                                                             Additional         
                                                                                             requirement.       
Perchloroethylene....  No change............        No change              No change        46 CFR 153, Table 1:
                                                                                             Vent height, 4m to 
                                                                                             B/3; additional    
                                                                                             requirement.       
Pinene...............  1. alpha-Pinene......            B                      A                                
                       2. beta-Pinene.......            B                      B                                
Polypropylene glycol   Poly(2-8)alkylene               III                     D                                
 methyl ether.          glycol monoalkyl(C1-                                                                    
                        C6) ether.                                                                              
Proprionaldehyde.....  No change............            D                      C            46 CFR 153, Table 1:
                                                                                             Additional         
                                                                                             requirements.      
iso-Propylbenzene....  Propylbenzene (all               B                      A                                
                        isomers).                                                                               
n-Propylbenzene......  Propylbenzene (all               C                      A                                
                        isomers).                                                                               
Propylene oxide......  No change............            D                      C                                
Sodium hydrogen        Sodium hydrogen                                                                          
 sulfite solution       sulfite solution                                                                        
 (35% or less).         (45% or less).                                                                          
Sodium silicate        No change............            D                      C            46 CFR 153, Table 1:
 solution.                                                                                   Add to table.      
Sulfolane............  No change............           III                     D            ....................
1,2,3,5-               Tetramethylbenzene               C                      A                                
 Tetramethylbenzene.    (all isomers).                                                                          
Tridecanoic acid.....  No change............           III                     B            46 CFR 153, Table 1:
                                                                                             Add to table.      
Triethylene glycol     Poly(2-8)alkylene               III                     D                                
 butyl ether.           glycol monoalkyl(C1-                                                                    
                        C6) ether.                                                                              
Triethyl phosphite...  No change............            #                      B            46 CFR 153, Table 1:
                                                                                             Additional         
                                                                                             requirements.      
Trimethylbenzene (all  No change............            B                      A                                
 isomers).                                                                                                      
Undecanoic acid......  No change............            C                      B                                
iso-Valeraldehyde....  Valeraldehyde (all           No change              No change        46 CFR 153, Table 1.
                        isomers).                                                                               
n-Valeraldehyde......  Valeraldehyde (all               D                      C            46 CFR 153, Table 1.
                        isomers).                                                                               
Valeraldehyde (iso-,   Valeraldehyde (all         Not applicable         Not applicable     46 CFR 151, Table   
 n-).                   isomers).                                                            151.05.            
----------------------------------------------------------------------------------------------------------------
                                                                                                                

    Because the United States is a party to the International 
Convention for the Prevention of Pollution from Ships, 1973 as modified 
by the protocol of 1978 relating thereto (MARPOL 73/78), these 
amendments are required to ensure that the Coast Guard regulations are 
consistent with revisions to IMO's chemical codes, which took effect 
July 1, 1994. Accordingly, the Coast Guard finds that good cause exists 
under 5 U.S.C. 553(b) to publish this rule without opportunity for 
comment. On May 24, 1993, in an appendix to the Bulk Hazardous 
Materials NPRM (58 FR 29937), the public was notified of the IMO 
revisions that are being adopted into Coast Guard regulations by this 
final rule.

Future rulemaking

    The IMO reevaluated the Pol. Cat. and ship type of a number of 
entries based upon revised Hazard Profiles from the Working Group on 
the Evaluation of the Hazards of Harmful Substances Carried by Ships 
(EHS), EHS 28 meeting held in February 1993. This action resulted in 
several entries in the IMO's Chemical Codes having their Pol. Cat. or 
carriage requirements ``downgraded'' or ``upgraded''. All 
``downgrades'' have been incorporated into Coast Guard regulations by 
the final rule, CGD 92-100 published April 11, 1994. The ``upgrades'' 
from the EHS 28 meeting will be incorporated into Coast Guard 
regulations by a future rulemaking. A new Table of ``Upgrades'', as are 
known at this time is set out in Appendix I to this rulemaking for the 
information of interested parties.

Regulatory Assessment

    This rulemaking is not a significant regulatory action under 
section 3(f) of Executive Order 12866 and does not require an 
assessment of potential costs and benefits under section 6(a)(3) of 
that order. It has not been reviewed by the Office of Management and 
Budget under that order. It is not significant under the Department of 
Transportation Regulatory Policies and Procedures (44 FR 11040; 
February 26, 1979). The Coast Guard expects the economic impact of this 
final rule to be so minimal that a full Regulatory Evaluation under 
paragraph 10e of the regulatory policies and procedures is unnecessary.
    This rulemaking is largely administrative in nature and updates the 
chemical tables by adding cargoes recently authorized by the Coast 
Guard or added to the IMO Chemical Codes and makes other non-
substantive editorial changes and corrections. Some costs are 
associated with the changes instituted by the IMO. Many U.S. flagged 
tank ships covered by these regulations are already in compliance with 
these requirements which coincide with existing regulatory 
requirements.
    The Coast Guard has identified costs associated with the 
``upgrade'' from open or restricted gauging to closed gauging. However, 
because of the marine vapor control systems regulations (final rule CGD 
88-102, 55 FR 25396, June 21, 1990), the Coast Guard has reason to 
believe that most U.S. tank vessels, barge or ship certificated to 
carry any commodity affected by this rulemaking, will have or is having 
its gauging refitted to be in compliance with the vapor control 
regulations. A sampling of barge operators and tank ship operators 
supports this position.
    Because of the IMO requirements which ``upgrade'' ``motor fuel 
anti-knock compounds'' from the current ship type II to ship type I, 
there may be an economic impact on vessels certificated to carry this 
material. No U.S. flagged vessels are certificated to carry this 
material. World-wide there are six vessels certificated to carry this 
commodity, of which four are operated by a U.S. company, the remaining 
two are operated by an overseas company. All six vessels are 
certificated under foreign flags; four Liberian and two Norwegian. 
These ships currently may meet the requirements of ship type I vessels, 
in which case, there will be no economic impact. However, the Coast 
Guard has no information on these foreign flagged vessels to indicate 
whether the ships certificated to carry this material currently meet 
those requirements.

Small Entities

    Under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.), the 
Coast Guard must consider the economic impact on small entities of a 
rule for which a general notice of proposed rulemaking is required. 
``Small entities'' may include (1) small businesses and not-for-profit 
organizations that are independently owned and operated and are not 
dominant in their fields and (2) governmental jurisdictions with 
populations of less than 50,000. This rule does not require a general 
notice of proposed rulemaking and, therefore, is exempt from the 
requirements of the Act. Although this rule is exempt, the Coast Guard 
has reviewed it for potential impact on small entities.
    This final rule is largely administrative in nature. Some costs are 
associated with the IMO requirments implemented by this final rule. As 
discussed above, most U.S. flagships that are covered by this 
rulemaking are in compliance with this rule due to existing regulatory 
requirements.
    Therefore, the Coast Guard certifies under section 605(b) of the 
Regulatory Flexibility Act (5 U.S.C. 601 et seq.) that this rule will 
not have a significant economic impact on a substantial number of small 
entities.

Collection of Information

    This final rule contains no collection of information requirements 
under the Paperwork Reduction Act (44 U.S.C. 3501 et seq.).

Federalism

    The Coast Guard has analyzed this rulemaking in accordance with the 
principles and criteria contained in Executive Order 12612 and has 
determined that this rulemaking does not have sufficient federalism 
implications to warrant the preparation of a Federalism Assessment. 
This rulemaking is largely administrative in nature and will merely 
update current chemical tables in Coast Guard regulations and will have 
no Federalism implications. However, the authority to implement the 
requirements of this rule has been committed to the Coast Guard by 
Federal statutes and the importance of uniform requirements in the 
carriage of bulk hazardous cargo aboard ships moving from port to port 
requires that the Coast Guard preempt conflicting State and local 
requirements in the same subject area.

Environment

    The Coast Guard has considered the environmental impact of this 
final rule and concluded that, under section 2.B.2 of Commandant 
Instruction M16475.1B, this action is categorically excluded from 
further environmental documentation. This rulemaking is an 
administrative update of current tables to add chemicals already 
approved under Coast Guard regulation or international law. Any impact 
on the environment will be positive because the carriage requirements 
established by the IMO could result in a reduction in maritime 
pollution from tankships. A Categorical Exclusion Determination is 
available in the docket for inspection or copying where indicated under 
``ADDRESSES.''

List of Subjects

46 CFR Part 30

    Cargo vessels, Foreign relations, Hazardous materials 
transportation, Penalties, Reporting and recordkeeping requirements, 
Seamen.

46 CFR Part 150

    Hazardous materials transportation, Marine safety, Occupational 
safety and health, Reporting and recordkeeping requirements.

46 CFR Part 151

    Cargo vessels, Hazardous materials transportation, Marine safety, 
Reporting and recordkeeping requirements, Water pollution control.

46 CFR Part 153

    Administrative practice and procedure, Cargo vessels, Hazardous 
materials transportation, Marine safety, Reporting and recordkeeping 
requirements, Water pollution control.
    For the reasons set out in the preamble, the Coast Guard amends 46 
CFR parts 30, 150, 151, and 153 as follows:

PART 30--GENERAL PROVISIONS

    1. The authority citation for part 30 continues to read as follows:
    Authority: 46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; 49 CFR 
1.45, 1.46; Section 30.01-2 also issued under the authority of 44 
U.S.C. 3507.


Sec.  30.25-1  [Amended]

    2. In table 30.25-1, remove the following entries in their 
entirety: ``2-Ethoxyethanol'', ``Ethylene glycol butyl ether'', 
``Ethylene glycol tert-butyl ether'', ``Ethylene glycol ethyl ether, 
see 2-Ethoxyethanol'', ``Ethylene glycol isopropyl ether'', and 
``Ethylene glycol methyl ether''.
    3. Table 30.25-1 is amended further as follows:
    a. In the ``Cargoes'' column, remove the words ``(iso-, n-) Butyl 
acetate'' and add, in their place, the words ``(iso-,
n-) Butyl acetate, see Butyl acetate (all isomers)''.
    b. In the ``Cargoes'' column, remove the words ``sec-Butyl 
acetate'' and add, in their place, the words ``sec-Butyl acetate, see 
Butyl acetate (all isomers)'' and, in the ``Pollution Category'' column 
for the new entry, remove the letter ``D'' and add, in its place, the 
letter ``C'' in boldface type.
    c. In the ``Cargoes'' column, remove the words ``Cumene (see also 
iso-Propylbenzene)'' and add, in their place, the words ``Cumene 
(isopropylbenzene), see Propylbenzene (all isomers)'' and, in the 
``Pollution Category'' column for the new entry, remove the letter 
``B'' and add, in its place, the letter ``A'' in boldface type.
    d. For the entry ``Diethylbenzene'', in the ``Pollution Category'' 
column, remove the letter ``C'' and add, in its place, the letter ``A'' 
in boldface type.
    e. For the entry ``Diethylene glycol'', in the ``Pollution 
Category'' column, remove the number ``III'' and add, in its place, the 
letter ``D'' in boldface type.
    f. In the ``Cargoes'' column, remove the words ``Diethylene glycol 
butyl ether'' and add, in their place, the words ``Diethylene glycol 
butyl ether, see Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether'' and, 
in the ``Pollution Category'' column for the new entry, remove the 
number ``III'' and add, in its place, the letter ``D'' in boldface 
type.
    g. In the ``Cargoes'' column, remove the words ``Diethylene glycol 
ethyl ether'' and add, in their place, the words ``Diethylene glycol 
ethyl ether, see Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether'' and, 
in the ``Pollution Category'' column for the new entry, remove the 
number ``III'' and add, in its place, the letter ``D'' in boldface 
type.
    h. For the entry ``Ethylbenzene'', in the ``Pollution Category'' 
column, remove the letter ``C'' and add, in its place, the letter ``B'' 
in boldface type.
    i. For the entry ``Ethylene glycol methyl ether acetate'', in the 
``Pollution Category'' column, remove the letter ``D'' and add, in its 
place, the letter ``C'' in boldface type.
    j. For the entry ``Methyl alcohol'', in the ``Pollution Category'' 
column, remove the number ``III'' and add, in its place, the letter 
``D'' in boldface type.
    k. For the entry ``Octyl acetate'', in the ``Pollution Category'' 
column, remove the letter ``D'', and add, in its place, the letter 
``C'' in boldface type.
    l. In the ``Cargoes'' column, remove the word ``Pinene'', and add, 
in its place, the words ``Pinene, see the alpha- or beta- isomers'' 
and, in the ``Pollution Category'' column for the new entry, remove the 
letter ``B''.
    m. In the ``Cargoes'' column, remove the words ``Polypropylene 
glycol methyl ether'' and add, in their place, the words 
``Polypropylene glycol methyl ether, see Poly(2-8)alkylene glycol 
monoalkyl(C1-C6) ether'' and, in the ``Pollution Category'' column for 
the new entry remove the number ``III'' and add, in its place, the 
letter ``D'' in boldface type.
    n. In the ``Cargoes'' column, remove the words ``iso-Propylbenzene 
(see also Cumene)'' and add, in their place, the words ``iso-
Propylbenzene (cumene), see Propylbenzene (all isomers)'' and, in the 
``Pollution Category'' column for the new entry remove the letter ``B'' 
and add, in its place, the letter ``A'' in boldface type.
    o. In the ``Cargoes'' column, remove the words ``n-Propylbenzene'' 
and add, in their place, the words ``n-Propylbenzene, see Propylbenzene 
(all isomers)'' and, in the ``Pollution Category'' column for the new 
entry, remove the letter ``C'' and add, in its place, the letter ``A'' 
in boldface type.
    p. In the ``Cargoes'' column, remove the words ``Sodium acetate, 
Glycol, Water mixture (containing 1% or less, Sodium hydroxide)'' and 
add, in their place, the words ``Sodium acetate, Glycol, Water mixture 
(containing 1% or less, Sodium hydroxide) (if flammable or 
combustible)''.
    q. For the entry ``Sulfolane'', in the ``Pollution Category'' 
column, remove the number ``III'' and add, in its place, the letter 
``D'' in boldface type.
    r. For the entry ``Tridecanoic acid'', in the ``Pollution 
Category'' column, remove the number ``III'' and add, in its place, the 
letter ``B'' in boldface type.
    s. In the ``Cargoes'' column, remove the words ``Triethylene glycol 
butyl ether'' and add, in their place, the words ``Triethylene glycol 
butyl ether, see Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether'' and, 
in the ``Pollution Category'' column for the new entry, remove the 
number ``III'' and add, in its place, the letter ``D'' in boldface 
type.
    t. In the ``Cargoes'' column, remove the words ``Trimethylbenzenes 
(all isomers)'' and add, in their place, the words ``Trimethylbenzene 
(all isomers)'' in boldface type and, in the ``Pollution Category'' 
column for the new entry, remove the letter ``B'' and add, in its 
place, the letter ``A'' in boldface type.
    4. Table 30.25-1 is amended further as follows:
    a. In the ``Cargoes'' column, remove the entry for ``Dialkyl(C7-
C13) phthalates'' and add, in its place, the entry:

``Dialkyl(C7-C13) phthalates
    Including:
    Diisodecyl phthalate
    Diisononyl phthalate
    Dinonyl phthalate
    Ditridecyl phthalate
    Diundecyl phthalate''
    b. In the ``Cargoes'' column, remove the words ``Poly(2-8)alkylene 
glycol monoalkyl(C1-C6) ether'' and add, in their place the words:
``Poly(2-8)alkylene glycol monoalkyl(C1-C6) 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
    Polypropylene glycol methyl ether
    Triethylene glycol butyl ether
    Triethylene glycol ethyl ether
    Triethylene glycol methyl ether
    Tripropylene glycol methyl ether''
    c. In the ``Cargoes'' column, remove the words ``Poly(2-8)alkylene 
glycol monoalkyl(C1-C6) ether acetate'' and add, in their place, the 
words:
``Poly(2-8)alkylene glycol monoalkyl(C1-C6) ether acetate
    Including:
    Diethylene glycol butyl ether acetate
    Diethylene glycol ethyl ether acetate
    Diethylene glycol methyl ether acetate''
    d. In the ``Cargoes'' column, remove the words ``Propylene glycol 
monoalkyl ether'' and add, in their place, the words:
``Propylene glycol monoalkyl ether
    Including:
    n-Propoxypropanol
    Propylene glycol n-butyl ether
    Propylene glycol ethyl ether
    Propylene glycol methyl ether''
    5. In table 30.25-1, add the following new entries in chemically 
proper alphabetized order:

  Table 30.25-1--List of Flammable and Combustible Bulk Liquid Cargoes  
------------------------------------------------------------------------
              Cargoes                         Pollution Category        
------------------------------------------------------------------------
                                  *****                                 
Butyl acetate (all isomers)                            C                
                                  *****                                 
alpha-Pinene                                           A                
beta-Pinene                                            B                
                                  *****                                 
Propylbenzene (all isomers)                            A                
                                  *****                                 
------------------------------------------------------------------------

    6. In the footnote to Table 30.25-1, remove the words ``Items with 
a bullet () or in boldface are changes per CGD 92-100'' and 
insert the words ``Items with a bullet () or in boldface are 
changes since October 1, 1993'', in their place.
    7. In the footnote to Table 30.25-1, add the words ``Note: See 
Table 2 of Part 153 for additional cargoes permitted to be carried by 
tank barge.'' to precede the phrase ``Explanation of Symbols:''.

PART 151--BARGES CARRYING BULK LIQUID HAZARDOUS MATERIAL CARGOES

    8. The authority citation for Part 151 continues to read as 
follows:
    Authority: 33 U.S.C. 1903, 46 U.S.C. 3703; 49 CFR 1.46.
    9. Section 151.05-2 is added to read as follows:


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 acarylate cargoes must comply with the gauging 
requirement of Table 151.05 of this part by August 15, 1998.

Table 151.05 [Amended]

    10. In table 151.05, for the four entries ``Benzene'', ``Benzene 
hydrocarbon mixture (containing Acetylenes) (having 10% Benzene or 
more)'', ``Benzene hydrocarbon mixtures (having 10% Benzene or more)'', 
and ``Benzene, Toluene, Xylene mixtures (having 10% Benzene or more)'', 
in the ``Gauging device'' column, remove the word ``Restr.'' and add, 
in its place, the word ``Closed'' in bold face type and, in the 
``Special requirements'' column remove ``151'' wherever it may appear .
    11. In table 151.05 column remove the words ``Ethylene glycol 
monoalkyl ether'' and add, in their place, the words:
``Ethylene glycol monoalkyl ethers
    Including:
    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''
    12. In table 151.05, in the ``Electrical Hazard class-group'' 
column, replace the current listing with the new listing, in boldface 
type to read as follows:

------------------------------------------------------------------------
       Cargo name                Current                    New         
------------------------------------------------------------------------
Acetone cyanohydrin                 NA                      I-D         
Adiponitrile                        NA                      I-D         
Aniline                             NA                      I-D         
Dichloromethane                     NA                      I-D         
2,2'-Dichloroethyl ether            I-D                     I-C         
Ethanolamine                        NA                      I-D         
2-Ethylhexyl acrylate               NA                      I-D         
Ethylidene norbornene               I-C                     NA          
Formaldehyde solution               I-C                     I-B         
 (37% to 50%)                                                           
2-Methyl-5-ethylpyridine            NA                      I-D         
Phenol                              NA                      I-D         
Phthalic anhydride                  NA                      I-D         
 (molten)                                                               
Tetraethylenepentamine              NA                      I-C         
Toluene diisocyanate                NA                      I-D         
1,2,3-Trichloropropane              NA                      I-D         
Triethanolamine                     NA                      I-C         
Triethylenetetramine                NA                      I-C         
------------------------------------------------------------------------

    13. In table 151.05, remove the following entries in their 
entirety:
    (a) iso-Butyl acrylate
    (b) n-Butyl acrylate
    (c) Valeraldehyde (iso-, n-)
    14. In table 151.05, add the following new entries in chemically 
proper alphabetized order:
*  *  *  *  *

                                                                                             Table 151.05--Summary of Minimum Requirements                                                                                              
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
             Cargo identification                                                         Tanks                         Cargo transfer       Environmental                                                                              
-----------------------------------------------                     ---------------------------------------------------------------------      control                                               Electrical    Temp.                
                                                 Hull      Cargo                                                                         --------------------    Fire        Special requirements      hazard     control  Tank internal
                                                 type   segregation                                          Gauging   Piping                         Cargo   protection   (section in 46 CFR part     class-    install.     inspect.  
           Name              Pressure   Temp.              tank                 Type                Vent     device    class    Control     Cargo   handling   required             151)               group               period--years
                                                                                                                                            tanks    space                                                                              
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                        
                                                                                                              * * * * * * *                                                                                                             
iso-Butyl acrylate, see                                                                                                                                                                                                                 
 Butyl acrylate, (all                                                                                                                                                                                                                   
 isomers).                                                                                                                                                                                                                              
n-Butyl acrylate, see                                                                                                                                                                                                                   
 Butyl acrylate, (all                                                                                                                                                                                                                   
 isomers).                                                                                                                                                                                                                              
Butyl acrylate (all            Atmos.     Amb.     III          1i   Integral Gravity..........         PV     Restr        II       G-1        NR    Vent F         Yes  .50-70(a)................        I-D         NA           G   
 isomers).                                                     2ii                                                                                                        .50-81(a), (b)...........                                     
                                                                                                              * * * * * * *                                                                                                             
1,1-, 1,2-, or 1,3-                                                                                                                                                                                                                     
 Dichloropropane, see                                                                                                                                                                                                                   
 individual entries.                                                                                                                                                                                                                    
1,1-Dichloropropane.......     Atmos.     Amb.     III          1i   Integral Gravity..........         PV    Restr.        II       G-1        NR    Vent F         Yes  No.......................        I-D         NA            G  
                                                               2ii                                                                                                                                                                      
1,2-Dichloropropane.......     Atmos.     Amb.     III          1i   Integral Gravity..........         PV    Restr.        II       G-1        NR    Vent F         Yes  No.......................        I-D         NA            G  
                                                               2ii                                                                                                                                                                      
1,3-Dichloropropane.......     Atmos.     Amb.     III          1i   Integral Gravity..........         PV    Restr.        II       G-1        NR    Vent F         Yes  No.......................        I-D         NA            G  
                                                               2ii                                                                                                                                                                      
                                                                                                              * * * * * * *                                                                                                             
Valeraldehyde (iso-, n-),                                                                                                                                                                                                               
 see Valeraldehyde (all                                                                                                                                                                                                                 
 isomers).                                                                                                                                                                                                                              
Valeraldehyde (all             Atmos.     Amb.     III          1i   Integral Gravity..........         PV    Restr.        II       G-1     Inert    Vent F         Yes  No.......................        I-C         NA            G  
 isomers).                                                     2ii                                                                                                                                                                      
                                                                                                              * * * * * * *                                                                                                             
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
*****                                                                                                                                                                                                                                   

    15. In the footnote to Table 151.05, remove the words ``Items with 
a bullet () or in boldface are changes per CGD 92-100'' and 
insert the words ``Items with a bullet () or in boldface are 
changes since October 1, 1993'', in their place.


Sec.  151.12-5  [Amended]

    16. In Sec.  151.12-5, remove the word ``Ethylcyclohexyl-amine'' 
and add, in its place, the word ``N-Ethylcyclohexyl-amine''; remove the 
words ``Polyethylene polyamine'', and add, in their place, the words 
``Polyethylene polyamines''; and remove the entries ``Propylene oxide'' 
and ``n-Valeraldehyde''.

PART 153--SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED 
GAS HAZARDOUS MATERIALS

    17. The authority citation for Part 153 continues to read as 
follows:
    Authority: 46 U.S.C. 3703; 49 CFR 1.46. Section 153.40 issued under 
49 U.S.C. 1804. 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).


Sec.  153.560  [Amended]

    18. The section heading to Sec. 153.560 incorrectly redesignated as 
Sec. 153.60 at 59 FR 17028, April 11, 1994, is revised to read as 
follows:


Sec.  153.560  Special requirements for Alkyl(C7-C9) nitrates.

    19. Section 153.565 is added to read as follows:


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.
    20. Section 153.1052 is revised to read as follows:


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 with out specific authorization 
from the Commandant (G-MTH).

Table 1 [Amended]

    21. In table 1 to part 153, in the ``IMO Annex II pollution 
category'' column, replace the current listing with the new listing, in 
boldface type to read as follows:

------------------------------------------------------------------------
       Cargo name                Current                    New         
------------------------------------------------------------------------
Crotonaldehyde                       B                       A          
Diethanolamine                      III                      D          
Diethylbenzene                       C                       A          
Epichlorohydrin                      C                       A          
Ethylbenzene                         C                       B          
(o-, p-) Nitrotoluene                C                       B          
Trimethylbenzene (all                B                       A          
 isomers)                                                               
Undecanoic acid                      C                       B          
------------------------------------------------------------------------

    22. In table 1, for the entries listed below, in the ``Gauge'' 
column, remove the word ``Open'' and add, in its place, the word 
``Restr'', in boldface type:
    a. Butyraldehyde (all isomers)
    b. Camphor oil
    c. Styrene (monomer)
    d. Vinyl acetate
    23. In table 1 to part 153, for the entries listed below, in the 
``Special requirements'' column add, in numerical order, ``.409'', in 
boldface type:
    a. Acetic acid
    b. Acetic anhydride
    c. Acetonitrile
    d. Acrylic acid
    e. n-Butyl ether
    f. Butyl methacrylate
    g. Cresylate spent caustic
    h. Cyclohexanone
    i. Cyclohexylamine
    j. Dibutylamine
    k. Diethylamine
    l. Diethylethanolamine
    m. Diethyl sulfate
    n. Dimethylamine solution (45% or less)
    o. Dimethylethanolamine
    p. Dimethylformamide
    q. Diphenylol propane-epichlorohydrin resins
    r. Dodecylamine, Tetradecylamine mixture
    s. Ethylamine
    t. Ethylenediamine
    u. Ethyl methacrylate
    v. Formaldehyde (50% or more), Methanol mixtures
    w. Formaldehyde solution (37% to 50%)
    x. Formic acid
    y. Furfural
    z. Hexamethyleneimine
    aa. Isophorone diisocyanate
    bb. Isoprene
    cc. Lauric acid
    dd. Methyl methacrylate
    ee. Morpholine
    ff. o-Nitrophenol (molten)
    gg. 1- or 2-Nitropropane
    hh. Nitropropane (60%), Nitroethane (40%) mixture
    ii. Noxious liquid, N.F. (11)
    jj. Noxious liquid, N.F. (12)
    kk. Paraldehyde
    ll. 1,3-Pentadiene
    mm. Propionaldehyde
    nn. Propionic acid
    oo. Tetrahydrofuran
    pp. Triethylamine
    qq. Triethyl phosphite
    rr. 1-Undecyl alcohol
    ss. Vinyl acetate
    24. In table 1 to part 153, for the entries listed below, in the 
``Special requirements'' column, remove the word ``None'' and add, in 
its place, the number ``.409'', in boldface type:
    a. Butene oligomer
    b. Dimethyl naphthalene sulfonic acid, sodium salt solution
    c. Heptyl acetate
    d. Naphthalene sulfonic acid, sodium salt solution (40% or less)
    e. Noxious liquid, N.F. (9)

Table 1 [Amended]

    25. Table 1 to part 153 is amended further as follows:
    a. For the entry ``Benzene hydrocarbon mixtures (having 10% Benzene 
or more)'', in the ``Gauge'' column, remove the word ``Restr'' and add, 
in its place, the word ``Closed'', in boldface type and, in the 
``Special requirements'' column add, in numerical order, ``.409'', in 
bold face type.
    b. For the entry ``Benzene, Toluene, Xylene mixtures (having 10% 
Benzene or more)'', in the ``Gauge'' column, remove the word ``Restr'' 
and add, in its place, the word ``Closed'', in boldface type and, in 
the ``Special requirements'' column add, in numerical order, ``.409'', 
in bold face type.
    c. For the entry ``Calcium hypochlorite solution (15% or less)'', 
in the ``Special requirements'' column, remove the number ``.238(d)'' 
and add, in its place, the number ``.236(a), (b)'', in boldface type.
    d. For the entry ``Calcium hypochlorite solution (more than 15%)'', 
in the ``Special requirements'' column, remove the number ``.238(d)'' 
and add, in its place, the numbers ``.236(a), (b)'' and ``.409'', in 
boldface type.
    e. For the entry ``2,4-Dichloro-phenoxyacetic acid, dimethylamine 
salt solution'', in the ``Special requirements'' column, add, in 
numerical order, ``.236(a), (b), (c), (g)'', in bold face type.
    f. For the entry ``2,4-Dichloro-phenoxyacetic acid, 
triisopropanolamine salt solution'', in the ``Special requirements'' 
column add, in numerical order, ``.236(a), (b), (c), (g)'', in bold 
face type.
    g. For the entry ``Dinitrotoluene (molten)'', in the ``IMO Annex II 
pollution category'' column, remove the letter ``B'' and add, in its 
place, the letter ``A'', in boldface type and, in the ``Special 
requirements'' column, remove ``.440'', and ``.908(a), (b)''.
    h. For the entry ``Dodecyl diphenyl ether disulfonate solution'', 
in the ``IMO Annex II pollution category'' column, remove the letter 
``B'' and add, in its place, the letter ``A'', in boldface type and, in 
the ``Cargo containment system'' column, remove the number ``III'' and 
add, in its place, the number ``II'', in boldface type and, in the 
``Special requirements'' column, remove ``.440'', ``.488'', and 
``.908(a)''.
    i. For the entry ``Ethylene oxide (30% or less), Propylene oxide 
mixture'', in the ``IMO Annex II pollution category'' column, remove 
the letter ``D'' and add, in its place, the letter ``C'', in boldface 
type and, in the ``Haz.'' column, remove the letter ``S'' and add, in 
its place, the letters ``S/P'', in boldface type.
    j. For the entry ``2-Ethyl-3-propylacrolein'', in the ``IMO Annex 
II pollution category'' column, remove the letter ``B'' and add, in its 
place, the letter ``A'', in boldface type and, in the ``Special 
requirements'' column, remove ``.440'', and ``.908(b)''.
    k. For the entry ``Isophorone diisocyanate'', in the ``Cargo 
containment system'' column, remove the number ``III'' and add, in its 
place, the number ``II'', in boldface type and, in the ``Special 
requirements'' column add, in numerical order, ``.409'' and ``.525'', 
in bold face type.
    l. For the entry ``Metam sodium solution'', in the ``Cargo 
containment system'' column, remove the number ``III'' and add, in its 
place, the number ``II'', in boldface type.
    m. For the entry ``Motor fuel anti-knock compound (containing lead 
alkyls)'', in the ``Cargo containment system'' column, remove the 
number ``II'' and add, in its place, the number ``I'', in boldface 
type.
    n. For the entry ``Pentane (all isomers)'', in the ``Special 
requirements'' column add, in numerical order, ``.372'', in bold face 
type.
    o. For the entry ``Pentene (all isomers)'', in the ``Special 
requirements'' column add, in numerical order, ``.372'', in bold face 
type.
    p. For the entry ``Perchloroethylene'', in the ``Vent height'' 
column, remove the number ``4m'' and add, in its place, the number ``B/
3'', in boldface type and, in the ``Special requirements'' column add, 
in numerical order, ``.409'', in bold face type.
    q. For the entry ``Propionaldehyde'', in the ``IMO Annex II 
pollution category'' column, remove the letter ``D'' and add, in its 
place, the letter ``C'', in boldface type and, in the ``Haz.'' column, 
remove the letter ``S'' and add, in its place, the letters ``S/P'', in 
boldface type, and in the ``Special requirements'' column add, in 
numerical order, ``.409'', in bold face type.
    r. For the entry ``Propylene oxide'', in the ``IMO Annex II 
pollution category'' column, remove the letter ``D'', and add, in its 
place, the letter ``C'', in boldface type, and in the ``Haz.'' column, 
remove the letter ``S'', and add, in its place, the letters ``S/P'', in 
boldface type.
    s. For the entry ``Sodium hydrogen sulfite solution (35% or 
less)'', in the ``Cargo name'' column, remove the words ``(35% or 
less)'', and add, in their place, the words ``(45% or less)'', in 
boldface type.
    t. For the entry ``Triethyl phosphite'', in the ``IMO Annex II 
pollution category'' column, remove the symbol ``'' and add, 
in its place, the letter ``B'', in boldface type and, in the ``Haz.'' 
column, remove the letter ``S'', and add, in its place, the letters 
``S/P'', in boldface type, and in the ``Special requirements'' column 
add, in numerical order, ``.409'', in bold face type.

Table 1 [Amended]

    26. In table 1 to part 153, remove the following entries in their 
entirety:
    a. (iso-, n-) Butyl acetate
    b. (iso-, n-) Butyl acrylate
    c. n-Butyl butyrate
    d. iso-Butyl isobutyrate
    e. Cumene
    f. Pinene
    g. n-Propylbenzene
    h. 1,2,3,5-Tetramethylbenzene
    i. iso-Valeraldehyde
    j. n-Valeraldehyde
    27. In Table 1 to part 153, add the following new entries in 
chemically proper alphabetized order:

                                                        Table 1.--Summary of Minimum Requirements                                                       
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                IMO Annex                                                                                                     Electrical
                                    II                 Cargo       Vent                          Fire       Special requirements in 46 CFR      hazard  
          Cargo name            pollution    Haz.   containment   height    Vent      Gauge   protection               Part 153                class and
                                 category              system                                   system                                           group  
--------------------------------------------------------------------------------------------------------------------------------------------------------
a.                                     b.       c.          d.        e.  f.        g.        h.          i.................................  j.        
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
(iso-, n-) Butyl acetate, see                                                                                                                           
 Butyl acetate (all isomers).                                                                                                                           
Butyl acetate (all isomers)...      C         P         III         4m    PV        Restr     A           .409..............................  I-D       
(iso-, n-) Butyl acrylate, see                                                                                                                          
 Butyl acrylate (all isomers).                                                                                                                          
Butyl acrylate (all isomers)..      B        S/P         II         4m    PV        Restr     A           .409, .526, .912(a)(1), .1002(a),   I-D       
                                                                                                           (b), .1004.                                  
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
n-Butyl butyrate, see Butyl                                                                                                                             
 butyrate (all isomers).                                                                                                                                
Butyl butyrate (all isomers)..      B         P         III         4m    PV        Restr     A           .409..............................  I-D       
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
iso-Butyl isobutyrate, see                                                                                                                              
 Butyl butyrate (all isomers).                                                                                                                          
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Cumene (isopropylbenzene), see                                                                                                                          
 Propylbenzene (all isomers).                                                                                                                           
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Ethylene glycol methyl ether        C         P         III         NR    Open      Open      A           None..............................  I-C       
 acetate.                                                                                                                                               
Ethylene glycol monoalkyl           D         S         III         4m    PV        Restr     A           .409..............................  I-C       
 ether.                                                                                                                                                 
Including:                                                                                                                                              
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                                                                                                                                                  
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Octyl acetate.................      C         P         III         NR    Open      Open      A           None..............................  I-D       
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Oleylamine....................      A        S/P         II         4m    PV        Restr     A           .409, .526........................  NA        
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Pinene, see the alpha- or beta-                                                                                                                         
  isomers.                                                                                                                                              
alpha-Pinene..................      A         P         III         4m    PV        Restr     A           .409..............................  I-D       
beta-Pinene...................      B         P         III         4m    PV        Restr     A           .409..............................  I-D       
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
n-Propylbenzene, see                                                                                                                                    
 Propylbenzene (all isomers).                                                                                                                           
Propylbenzene (all isomers)...      A         P         III         4m    PV        Restr     A           .409..............................  I-D       
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Sodium silicate solution......      C         P         III         NR    Open      Open      A           None..............................  NA        
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
1,2,3,5-Tetramethylbenzene,                                                                                                                             
 see Tetramethylbenzene (all                                                                                                                            
 isomers).                                                                                                                                              
Tetramethylbenzene (all             A         P         III         NR    Open      Open      A           None..............................  I-D       
 isomers).                                                                                                                                              
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
Tridecanoic acid..............      B         P         III         NR    Open      Open      A           .409, .440, .488, .908(a), (b)....  NA        
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
iso-Valeraldehyde, see                                                                                                                                  
 Valeraldehyde (all isomers).                                                                                                                           
n-Valeraldehyde, see                                                                                                                                    
 Valeraldehyde (all isomers).                                                                                                                           
Valeraldehyde (all isomers)...      C        S/P        III         4m    PV        Restr     A           .409, .500, .526..................  I-C       
                                                                                                                                                        
                                                                                                                                                        
                                                                      * * * * * * *                                                                     
                                                                                                                                                        
                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
*****                                                                                                                                                   

    28. In the footnote to Table 1 to part 153, remove the words 
``Items with a bullet () or in boldface are changes per CGD 92-
100'' and insert the words ``Items with a bullet () or in 
boldface are changes since October 1, 1993'', in their place.
    29. In footnote j to Table 1 to part 153, remove the words ``for 
organic acids'' and add, in their place, the words ``for inorganic 
acids''.

Table 2 [Amended]

    30. Table 2 to part 153 is amended as follows:
    a. In the ``Cargoes'' column, remove the words ``Drilling brine 
(containing Calcium, Potassium, or Sodium salts)'' and add, in their 
place, the words ``Drilling brine (containing Calcium, Potassium, or 
Sodium salts) (see also Potassium chloride solution (10% or more))''.
    b. For the entry ``Sodium silicate solution'', in the ``Pollution 
Category'' column, remove the letter ``D'', and add, in its place, the 
letter ``C'' in boldface type.
    31. Table 2 to part 153 is amended further by adding the following 
two new entries in chemically proper alphabetized order:

Table 2.--Cargoes Not Regulated Under Subchapters D or O of this Chapter
              when carried in Bulk on Non-oceangoing Barges             
------------------------------------------------------------------------
              Cargoes                         Pollution Category        
------------------------------------------------------------------------
                                  *****                                 
Potassium chloride solution (10% or                   III               
 more)(see also the drilling brines                                     
 entry)                                                                 
Sodium acetate, Glycol, Water                          #                
 mixture (containing 1% or less,                                        
 Sodium hydroxide) (if non-flammable                                    
 or non-combustible)                                                    
                                  *****                                 
------------------------------------------------------------------------

    32. In the footnote to Table 2, remove the words ``Items with a 
bullet () or in boldface are changes per CGD 92-100'' and 
insert the words ``Items with a bullet () or in boldface are 
changes since October 1, 1993'', in their place.

    Dated: August 18, 1994.
J. F. McGowan,
Acting Chief, Office of Marine Safety, Security and Environmental 
Protection.

Appendix to this Final Rule

    Note: The following appendix will not appear in the Code of 
Federal Regulations.
SUMMARY: The information contained in this appendix is for 
informational purposes only, and is intended to provide mariners 
with insight into revisions that may be adopted in future 
rulelmaking actions. It does not change existing regulations. The 
table below lists ``upgrades'' to current entries in the IMO 
Chemical Codes and Coast Guard tables and lists that, if adopted by 
the IMO as anticipated, would take effect sometime in mid-1997. This 
table was prepared from documents from the IMO Evaluation of Hazards 
Working Group (BCH), BCH 23 meeting (September 13-17, 1993).
    The IMO reevaluated the Pol. Cat. and ship type of a number of 
entries based upon decisions reached at the EHS 28 meeting held in 
February 1993. The decisions were based on the Group of Experts on 
the Scientific Aspects of Marine Pollution (GESAMP) Hazard Profiles 
from the Working Group on the Evaluation of the Hazards of Harmful 
Substances Carried by Ships (EHS). The reevaluations resulted in 
several ``downgrades'' and ``upgrades''. All ``downgrades'' 
established at that meeting have been incorporated into Coast Guard 
regulations by the final rule, CGD 92-100, published April 11, 1994.
    These new, and any other ``upgrades'' established in the future 
will be included in future Coast Guard rulemaking(s) to coincide 
with amendments to the IMO Chemical Codes. As stated above, at this 
time, the next set of amendments is scheduled for adoption in mid-
1997.
    ``Upgrades'' to current entries in the various tables consist of 
increased carriage requirements or revised, higher Pol. Cat.'s. The 
Coast Guard does not consider a change in Pol. Cat. from a 
provisional category, designated by having square brackets ``[ ]'' 
around it, to a final Pol. Cat. as an ``upgrade'' or ``downgrade''. 
It is considered a final assignment and takes effect immediately 
upon IMO's removal of provisional status.
    All ``upgrades'' as are currently known are addressed in this 
appendix.

------------------------------------------------------------------------
            Cargo Name               Pollution Category                 
--------------------------------------------------------     Comments   
     Current          Proposed       Current   Proposed                 
------------------------------------------------------------------------
Camphor oil       Camphor oil,         Not       Not     46 CFR 151,    
 (light).          white (Camphor    applica   applicab   Table 151.05. 
                   oil).               ble        le                    
Camphor oil.....  Camphor oil,          B         A      46 CFR 153,    
                   white (Camphor                         Table 1.      
                   oil).                                                
Diisobutyl        No change.......      D         C      46 CFR 153,    
 ketone.                                                  Table 1: Add  
                                                          to table.     
Ethyl amyl        No change.......      C         B                     
 ketone.                                                                
Methyl amyl       1. Methyl             D         C      46 CFR 153,    
 ketone.           isoamyl ketone.      D         B       Table 1: Add  
                  2. Methyl n-amyl                        to table.     
                   ketone.                               46 CFR 153,    
                                                          Table 1: Add  
                                                          to table.     
Methyl butyl      1. Methyl n-         No     No change  46 CFR 30-40.  
 ketone.           butyl ketone.      change  No change  46 CFR 30-40.  
                  2. Methyl iso-       No         C      46 CFR 153,    
                   butyl ketone.      change              Table 1: Add  
                  3. Methyl tert-       D                 to table.     
                   butyl ketone.                                        
Methyl heptyl     No change.......      B         A                     
 ketone.                                                                
------------------------------------------------------------------------

    1. In its continued effort to maintain consistency between the 
requirements of the tank ship regulations (part 153) and the 
tankbarge (part 151) where applicable, the Coast Guard, in a future 
rulemaking, will be changing, modifying or adding carriage 
requirements as discussed in paragraphs (a) and (b) below.
    (a) In order to conform tank ship and tankbarge requirements, 
special requirement 151.50-5 - ``Cargoes having toxic properties'' 
will be added to the entries in table 151.01 of part 151 of the 
tankbarge regulations for the commodities listed below. This is in 
conformance with the current special requirement for these 
comodities found in tank ship regulations at Sec.  153.525, 
``Special requirements for unusually toxic cargoes''.
    Acetonitrile
    Acrylonitrile
    Ammonium hydroxide
    Butylamine
    Carbon tetrachloride
    Crotonaldehyde
    Chloroform
    Dichlorobenzene
    1,1-Dichloropropane
    1,2-Dichloropropane
    1,3-Dichloropropane
    1,3-Dichloropropene
    Diisobutylamine
    Diisopropylamine
    N,N-Dimethylacetamide
    Di-n-propylamine
    Ethylamine solution (72% or less)
    N-Ethylbutylamine
    2-Methylpyridine
    1,1,2-Trichloroethane
    1,2,3-Trichloropropane
    Trichloroethylene
    Triethylamine
    These discrepancies between the special requirements in the tank 
ship table and the tankbarge table were identified by the Cargo 
Classification Working Group of the Chemical Transportation Advisory 
Committee (CTAC) Subcommittee on the Revision of Title 46 CFR part 
151. These changes, to be included in a future rulemaking, would 
conform the requirements for unusually toxic cargoes in table 151.05 
of part 151 with the requirements in table 1 of part 153 for the 
same material.
    (b) In addition, the entries in table 151.05, part 151 listed 
below were identified as having discrepancies between the 
requirements for venting, or gauging, or both, as indicated by an 
``X'' in the chart below when compared to the tank ship 
requirements:

                                                                        
------------------------------------------------------------------------
                                                           Tank    Tank 
                       Cargo name                          Vent    Gauge
------------------------------------------------------------------------
Acetic acid.............................................     X       X  
Adiponitrile............................................             X  
(iso-, n-) Butyl acrylate...............................             X  
Butylamine (all isomers)................................             X  
Carbon disulfide........................................             X  
Carbon tetrachloride....................................             X  
Camphor oil.............................................     X          
Chlorobenzene...........................................             X  
Chloroform..............................................     X       X  
Chlorosulfonic acid.....................................             X  
2,4-D, dimethylamine salt solution......................     X       X  
1,3-Dichloropropene.....................................             X  
Ethylidene norbornene...................................             X  
Hydrochloric acid.......................................     X       X  
Isoprene................................................             X  
Morpholine..............................................     X       X  
2-Methylpyridine........................................             X  
Oleum...................................................     X       X  
Propionic acid..........................................     X       X  
Propylene oxide.........................................     X       X  
Styrene.................................................     X          
1,2,3-Trichloropropane..................................             X  
Vinylidene chloride.....................................     X          
------------------------------------------------------------------------

    These discrepancies between the requirements in the tank ship 
table and the tankbarge table were identified by the Cargo 
Classification Working Group of the Chemical Transportation Advisory 
Committee (CTAC) Subcommittee on the Revision of Title 46 CFR Part 
151. The tankbarge requirements for venting and gauging will be 
reviewed by the Coast Guard to insure that these requirements meet a 
minimum level of safety. The changes will be part of a future 
rulemaking to conform the requirements of the two tables.
    2. Coal tar. The Coast Guard is considering whether to initiate 
a future rulemaking to remove the entry ``coal tar'' from table 
30.25-1 and from the list of flammable and combustible bulk liquid 
cargoes in parts 30-40, and then adding it to table 151.05 of part 
151. The addition of this entry to table 151.05 is consistent with 
the inclusion of other members of the coal tar ``family'' of 
commodities already in the table because of similar health safety 
hazards. This action would also make the tankbarge and tank ship 
tables consistent with respect to this family of commodities. The 
Coast Guard is coordinating this action with the American Coke and 
Coal Chemicals Institute's Task Force on Marine Shipping Regulations 
for Coal Tar Products under the guidance of the Chemical 
Transportation Advisory Committee (CTAC).
    The entry ``coal tar'', and its family members are currently 
included in table 1 of part 153, and no action affecting this table 
is planned.
    3. Hydrogen peroxide (H2O2) solutions. In a future rulemaking, 
the Coast Guard will revise the carriage requirements of the two 
hydrogen peroxide solution entries in table 1 of part 153, and add 
requirements to table 151.05 of part 151. The revision of the tank 
ship requirements in table 1 will correct omissions when these 
entries were first entered into the table. The addition of these 
entries to the tankbarge table will permit carriage of this material 
by barge.
[FR Doc. 94-20717 Filed 8-30-94; 8:45 am]
BILLING CODE 4910-14-F