[Title 46 CFR ]
[Code of Federal Regulations (annual edition) - October 1, 2024 Edition]
[From the U.S. Government Publishing Office]
[[Page i]]
Title 46
Shipping
________________________
Parts 41 to 69
Revised as of October 1, 2024
Containing a codification of documents of general
applicability and future effect
As of October 1, 2024
With Ancillaries
Published by the Office of the Federal Register
National Archives and Records Administration as a
Special Edition of the Federal Register
[[Page ii]]
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[[Page iii]]
Table of Contents
Page
Explanation................................................. v
Title 46:
Chapter I--Coast Guard, Department of Homeland
Security (Continued) 3
Finding Aids:
Table of CFR Titles and Chapters........................ 419
Alphabetical List of Agencies Appearing in the CFR...... 439
List of CFR Sections Affected........................... 449
[[Page iv]]
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Cite this Code: CFR
To cite the regulations in
this volume use title,
part and section number.
Thus, 46 CFR 42.01-1
refers to title 46, part
42, section 01-1.
----------------------------
[[Page v]]
EXPLANATION
The Code of Federal Regulations is a codification of the general and
permanent rules published in the Federal Register by the Executive
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parts covering specific regulatory areas.
Each volume of the Code is revised at least once each calendar year
and issued on a quarterly basis approximately as follows:
Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
Title 28 through Title 41...................................as of July 1
Title 42 through Title 50................................as of October 1
The appropriate revision date is printed on the cover of each
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OMB CONTROL NUMBERS
The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires
Federal agencies to display an OMB control number with their information
collection request.
[[Page vi]]
Many agencies have begun publishing numerous OMB control numbers as
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(b) The matter incorporated is in fact available to the extent
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(c) The incorporating document is drafted and submitted for
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that volume.
[[Page vii]]
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Oliver A. Potts,
Director,
Office of the Federal Register
October 1, 2024
[[Page ix]]
THIS TITLE
Title 46--Shipping is composed of nine volumes. The parts in these
volumes are arranged in the following order: Parts 1-40, 41-69, 70-89,
90-139, 140-155, 156-165, 166-199, 200-499, and 500 to end. The first
seven volumes containing parts 1-199 comprise chapter I--Coast Guard,
DHS. The eighth volume, containing parts 200--499, includes chapter II--
Maritime Administration, DOT and chapter III--Coast Guard (Great Lakes
Pilotage), DHS. The ninth volume, containing part 500 to end, includes
chapter IV--Federal Maritime Commission. The contents of these volumes
represent all current regulations codified under this title of the CFR
as of October 1, 2024.
For this volume, Susannah C. Hurley was Chief Editor. The Code of
Federal Regulations publication program is under the direction of John
Hyrum Martinez, assisted by Stephen J. Frattini.
[[Page 1]]
TITLE 46--SHIPPING
(This book contains parts 41 to 69)
--------------------------------------------------------------------
Part
chapter i--Coast Guard, Department of Homeland Security
(Continued)............................................... 42
[[Page 3]]
CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
--------------------------------------------------------------------
Editorial Note: Nomenclature changes to chapter I appear at 69 FR
18803, Apr. 9, 2004.
SUBCHAPTER E--LOAD LINES
Part Page
41
[Reserved]
42 Domestic and foreign voyages by sea......... 5
43
[Reserved]
44 Special service limited domestic voyages.... 65
45 Great Lakes load lines...................... 72
46 Subdivision load lines for passenger vessels 92
47 Combination load lines...................... 98
SUBCHAPTER F--MARINE ENGINEERING
50 General provisions.......................... 100
51
[Reserved]
52 Power boilers............................... 109
53 Heating boilers............................. 122
54 Pressure vessels............................ 127
56 Piping systems and appurtenances............ 163
57 Welding and brazing......................... 229
58 Main and auxiliary machinery and related
systems................................. 242
59 Repairs to boilers, pressure vessels, and
appurtenances........................... 268
60
[Reserved]
61 Periodic tests and inspections.............. 274
62 Vital system automation..................... 285
63 Automatic auxiliary boilers................. 301
64 Marine portable tanks and cargo handling
systems................................. 308
SUBCHAPTER G--DOCUMENTATION AND MEASUREMENT OF VESSELS
66
[Reserved]
67 Documentation of vessels.................... 317
68 Documentation of vessels: Exceptions to
coastwise qualification................. 355
69 Measurement of vessels...................... 372
[[Page 5]]
SUBCHAPTER E_LOAD LINES
PART 41 [RESERVED]
PART 42_DOMESTIC AND FOREIGN VOYAGES BY SEA--Table of Contents
Subpart 42.01_Authority and Purpose
Sec.
42.01-1 Authority for regulations.
42.01-5 OMB control numbers assigned pursuant to the Paperwork Reduction
Act.
42.01-10 Purpose of regulations.
Subpart 42.03_Application
42.03-5 U.S.-flag vessels subject to the requirements of this
subchapter.
42.03-10 Foreign vessels subject to this subchapter.
42.03-15 The Great Lakes of North America.
42.03-17 Special load line marks for vessels carrying timber deck cargo.
42.03-20 Equivalents.
42.03-25 Experimental installations.
42.03-30 Exemptions for vessels.
42.03-35 U.S.-flag vessels and Canadian vessels navigating on sheltered
waters of Puget Sound and contiguous west coast waters of
United States and Canada.
Subpart 42.05_Definition of Terms Used in This Subchapter
42.05-1 Approved.
42.05-10 Assigning authority.
42.05-20 Commandant.
42.05-25 Coast Guard District Commander or District Commander.
42.05-27 Credential.
42.05-30 Existing vessel.
42.05-40 Great Lakes.
42.05-45 International voyage.
42.05-47 Marine inspector or inspector.
42.05-50 New vessel.
42.05-55 Officer in Charge, Marine Inspection.
42.05-60 Recognized classification society.
42.05-63 Ship(s) and vessel(s).
42.05-65 Surveyor.
Subpart 42.07_Control, Enforcement, and Rights of Appeal
42.07-1 Load lines required.
42.07-5 Marks placed on vessel to indicate load lines.
42.07-10 Submergence of load line marks.
42.07-15 Zones and seasonal areas.
42.07-20 Logbook entries.
42.07-25 Approval of the Commandant.
42.07-30 Approval of the assigning authority.
42.07-35 American Bureau of Shipping as an assigning authority.
42.07-40 Recognized classification society as an assigning authority.
42.07-43 Change in assigning authority.
42.07-45 Load line certificates.
42.07-50 Penalties for violations.
42.07-55 Cancellation of load line certificates or exemption
certificates.
42.07-60 Control.
42.07-75 Right of appeal.
Subpart 42.09_Load Line Assignments and Surveys_General Requirements
42.09-1 Assignment of load lines.
42.09-5 All vessels--division into types.
42.09-10 Stability, subdivision, and strength.
42.09-15 Surveys by the American Bureau of Shipping or assigning
authority.
42.09-20 Surveys of foreign vessels.
42.09-25 Initial or periodic survey requirements for all vessels.
42.09-30 Additional survey requirements for steel-hull vessels.
42.09-35 Additional survey requirements for wood-hull vessels.
42.09-40 Annual surveys.
42.09-45 Correction of deficiencies.
42.09-50 Repairs or alterations to vessel after it has been surveyed.
Subpart 42.11_Applications for Load Line Assignments, Surveys, and
Certificates
42.11-1 General.
42.11-5 Applications for load line assignments, surveys, and
certificates for U.S.-flag vessels.
42.11-10 Applications for load line assignments and certificates for
vessels other than U.S.-flag vessels.
42.11-15 Application for timber load lines.
42.11-20 Application for annual survey.
Subpart 42.13_General Rules for Determining Load Lines
42.13-1 Assumptions.
42.13-5 Strength of vessel.
42.13-10 Freeboards assigned vessels.
42.13-15 Definitions of terms.
42.13-20 Deck line.
42.13-25 Load line mark.
42.13-30 Lines to be used with the load line mark.
42.13-35 Mark of assigning authority.
42.13-40 Details of marking.
42.13-45 Verification of marks.
[[Page 6]]
Subpart 42.15_Conditions of Assignment of Freeboard
42.15-1 Information to be supplied to the master.
42.15-5 Superstructure end bulkheads.
42.15-10 Doors.
42.15-15 Positions of hatchways, doorways and ventilators.
42.15-20 Cargo and other hatchways.
42.15-25 Hatchways closed by portable covers and secured weathertight by
tarpaulins and battening devices.
42.15-30 Hatchways closed by weathertight covers of steel or other
equivalent material fitted with gaskets and clamping devices.
42.15-35 Machinery space openings.
42.15-40 Miscellaneous openings in freeboard and superstructure decks.
42.15-45 Ventilators.
42.15-50 Air pipes.
42.15-55 Cargo ports and other similar openings.
42.15-60 Scuppers, inlets, and discharges.
42.15-65 Side scuttles.
42.15-70 Freeing ports.
42.15-75 Protection of the crew.
42.15-80 Special conditions of assignment for Type ``A'' vessels.
Subpart 42.20_Freeboards
42.20-3 Freeboard assignment: Type ``A'' vessels.
42.20-5 Freeboard assignment: Type ``B'' vessels.
42.20-6 Flooding standard: Type ``A'' vessels.
42.20-7 Flooding standard: Type ``B'' vessel, 60 percent reduction.
42.20-8 Flooding standard: Type ``B'' vessel, 100 percent reduction.
42.20-9 Initial conditions of loading.
42.20-10 Free surface.
42.20-11 Extent of damage.
42.20-12 Conditions of equilibrium.
42.20-13 Vessels without means of propulsion.
42.20-15 Freeboard tables.
42.20-20 Correction to the freeboard for vessels under 328 feet in
length.
42.20-25 Correction for block coefficient.
42.20-30 Correction for depth.
42.20-35 Correction for position of deck line.
42.20-40 Standard height of superstructure.
42.20-45 Length of superstructure.
42.20-50 Effective length of superstructure.
42.20-55 Trunks.
42.20-60 Deduction for superstructures and trunks.
42.20-65 Sheer.
42.20-70 Minimum bow height.
42.20-75 Minimum freeboards.
Subpart 42.25_Special Requirements for Vessels Assigned Timber
Freeboards
42.25-1 Application of this subpart.
42.25-5 Definitions of terms used in this subpart.
42.25-10 Construction of vessel.
42.25-15 Stowage.
42.25-20 Computation for freeboard.
Subpart 42.30_Zones, Areas, and Seasonal Periods
42.30-1 Basis.
42.30-5 Northern Winter Seasonal Zones and area.
42.30-10 Southern Winter Seasonal Zone.
42.30-15 Tropical Zone.
42.30-20 Seasonal Tropical Areas.
42.30-25 Summer Zones.
42.30-30 Enclosed seas.
42.30-35 The Winter North Atlantic Load Line.
Subpart 42.50_Load Line Certificates_Model Forms
42.50-1 General.
42.50-5 International load line certificates.
42.50-10 Load line certificates for nonadherent foreign flag vessels.
42.50-15 Coastwise load line certificates for U.S.-flag vessels.
Authority: 46 U.S.C. 5101-5116; Department of Homeland Security
Delegation No. 0170.1; section 42.01-5 also issued under the authority
of 44 U.S.C. 3507.
Subpart 42.01_Authority and Purpose
Sec. 42.01-1 Authority for regulations.
The statutory authority to prescribe rules and regulations requiring
certain vessels to have and display load line marks indicating the
maximum amidship draft to which such vessels may be safely loaded and
certification thereof by the assigning authority is in 46 U.S.C. 5101-
5116.
[CGD 80-120, 47 FR 5721, Feb. 8, 1982, as amended by CGD 97-057, 62 FR
51043, Sept. 30, 1997]
Sec. 42.01-5 OMB control numbers assigned pursuant to the Paperwork Reduction Act.
(a) Purpose. This section collects and displays the control numbers
assigned to information collection and recordkeeping requirements in
this subchapter by the Office of Management
[[Page 7]]
and Budget (OMB) pursuant to the Paperwork Reduction Act of 1980 (44
U.S.C. 3501 et seq.). The Coast Guard intends that this section comply
with the requirements of 44 U.S.C. 3507(f) which requires that agencies
display a current control number assigned by the Director of the OMB for
each approved agency information collection requirement.
(b) Display.
------------------------------------------------------------------------
Current
OMB
46 CFR part or section where identified or described control
No.
------------------------------------------------------------------------
Part 42..................................................... 1625-0013
Part 44..................................................... 1625-0013
Part 45..................................................... 1625-0013
Part 46..................................................... 1625-0013
------------------------------------------------------------------------
[49 FR 38120, Sept. 27, 1984, as amended by USCG-2004-18884, 69 FR
58345, Sept. 30, 2004]
Sec. 42.01-10 Purpose of regulations.
(a) The load line marks when placed on a vessel shall indicate the
maximum amidships draft to which such vessel can be lawfully submerged,
in the various circumstances and seasons applicable to such vessel.
(b) This subchapter sets forth the uniform minimum requirements for
load line marks on various categories of vessels. It also sets forth
requirements for surveys relating to the assignment of load lines, the
issuing of load line certificates by authorized issuing authorities, and
the carriage of load line certificates aboard vessels.
(c) The rules and regulations in this subchapter also provide for
the enforcement of load line requirements and control over vessels when
it is believed such vessels may be in violation of applicable load line
requirements.
[CGFR 68-60, 33 FR 10049, July 12, 1968, as amended by CGD 80-120, 47 FR
5721, Feb. 8, 1982]
Subpart 42.03_Application
Sec. 42.03-5 U.S.-flag vessels subject to the requirements of this
subchapter.
(a) Vessels engaged in foreign voyages or international voyages
other than solely Great Lakes voyages. (1) All U.S. flag vessels which
engage in foreign voyages or international voyages by sea (other than
solely in Great Lakes voyages) are subject to this part; except the
following:
(i) Ships of war;
(ii) New vessels of less than 79 feet in length;
(iii) Existing vessels of less than 150 gross tons;
(iv) Pleasure yachts not engaged in trade; and
(v) Fishing vessels.
(2) As provided in Article 4(4) of the 1966 Convention, in order for
existing vessels to take advantage of any reduction in freeboards from
those previously assigned, the regulations in subparts 42.13 to 42.25,
inclusive, of this part shall be fully complied with. Except for due
cause, such vessels shall not be required to increase their freeboards
under the provisions of the 1966 Convention.
(3) All U.S.-flag vessels authorized to engage in foreign or
international voyages may also engage in domestic voyages by sea and, as
permitted by Sec. 45.9 of this part and part 47 of this subchapter, in
Great Lakes voyages without additional load line marks and/or
certificates. Where additional load line marks and certificates are
provided to specifically cover ``Special Service, Coastwise'' or ``Great
Lakes'' operation, such vessels are subject to the applicable provisions
of parts 44 and 45 of this subchapter.
(b) Vessels engaged in domestic voyages by sea. (1) All U.S.-flag
vessels which engage in domestic voyages by sea (coastwise and
intercoastal voyages) shall be subject to the applicable provisions of
this part except the following:
(i) Merchant vessels of less than 150 gross tons.
(ii) Vessels which are mechanically propelled and numbered by a
State or the Coast Guard under the Federal Boat Safety Act of 1971 (46
U.S.C. 1451 et seq.) and not required by other laws to be inspected or
certified by the U.S. Coast Guard. (This exception includes all
mechanically propelled vessels of less than 150 gross tons, and
uninspected motor propelled oceanographic vessels of less than 300 gross
tons while operating pursuant to 46 U.S.C. 2113.
(iii) Pleasure craft not used or engaged in trade or commerce.
(iv) Barges of less than 150 gross tons.
[[Page 8]]
(v) Vessels engaged exclusively in voyages on waters within the
United States or its possessions and which are determined not to be
``coastwise'' or ``Great Lakes'' voyages.
(vi) Ships of war.
(vii) U.S. public vessels other than those vessels of 150 gross tons
or over and engaged in commercial activities.
(2) In order for existing vessels to take advantage of any reduction
in freeboards from those previously assigned, paragraph (a)(2) of this
section applies.
(c) Vessels engaged solely on Great Lakes voyages. A U.S. flag
vessel 79 feet and more and 150 gross tons or over that engages solely
on Great Lakes voyages is subject to the applicable provisions of this
part and part 45 of this subchapter and must comply with the regulations
in force on the date the keel is laid or a similar progress in
construction is made.
(d) Special service coastwise voyage. A U.S. flag vessel 150 gross
tons or over that engages in a ``special service coastwise voyage'' is
subject to the applicable provisions of this part and part 44 of this
subchapter.
(e) Hopper dredges engaged in limited service domestic voyages.
Self-propelled hopper dredges over 79 feet (24 meters) in length with
working freeboards, on limited service domestic voyages within 20
nautical miles (37 kilometers) from the mouth of a harbor of safe
refuge, are subject to the provisions of this subchapter that apply to a
Type ``B'' vessel and to the provisions of subpart E of part 44 of this
chapter.
[CGFR 68-60, 33 FR 10049, July 12, 1968, as amended by CGFR 68-126, 34
FR 9011, June 5, 1969; CGD 73-49R, 38 FR 12289, May 10, 1973; CGD 80-
120, 47 FR 5721, Feb. 8, 1982; CGD 86-016, 51 FR 9962, Mar. 24, 1986;
CGD 76-080, 54 FR 36976, Sept. 6, 1989; CGD 97-057, 62 FR 51043, Sept.
30, 1997]
Sec. 42.03-10 Foreign vessels subject to this subchapter.
(a) General. All existing foreign merchant vessels of 150 gross tons
or over, and new foreign vessels of 79 feet in length or more, loading
at or proceeding from any port or place within the jurisdiction of the
United States or its possessions for a foreign voyage by sea, or
arriving within the jurisdiction of the United States or its possessions
from a foreign voyage by sea, in both cases the Great Lakes excepted,
are subject to 46 U.S.C. 5101-5116, and the regulations in this part
applicable to such service. All foreign merchant vessels of 150 gross
tons or over, loading at or proceeding from any port or place within the
United States on the Great Lakes of North America, or arriving within
the jurisdiction of the United States on the Great Lakes, are subject to
46 U.S.C. 5101-5116 and the regulations in part 45 of this subchapter
applicable to such service.
(b) Canadian vessels. All vessels of Canadian registry and holding
valid certificates issued pursuant to Canadian laws and regulations are
assumed to be in compliance with the applicable provisions of 46 U.S.C.
5101-5116, the International Convention on Load Lines, 1966, and the
regulations in this subchapter.
(c) Vessels of countries signatory to or adhering to the 1966
Convention. The enforcement and control of load line requirements
regarding vessels of countries signatory to or adhering to The
International Convention on Load Lines, 1966, (the 1966 Convention) are
as described in Sec. 42.07-60 in this part, which is in accord with
provisions of Article 21 of the 1966 Convention. Such vessels when
holding currently valid certificates issued pursuant to the 1966
Convention, or recognized under such Convention, are assumed to be in
compliance with the applicable provisions of such Convention. Such
vessels are deemed to be in compliance with the load line requirements
found to be equally effective as those established in this part and
therefore in compliance with the applicable load line provisions of 46
U.S.C. 5101-5116, as amended, and the regulations in this part as
authorized by such laws. Vessels engaged in navigation on the Great
Lakes are subject to application of seasonal international marks as
specified in part 45 of this subchapter.
(d) Vessels of countries not signatory to or adhering to the 1966
Convention. (1) Vessels of countries not signatory to or adhering to the
1966 Convention, when within the jurisdiction of the United States,
shall be subject to 46 U.S.C.
[[Page 9]]
5101-5116, and the regulations in this subchapter as authorized by such
laws.
(2) Vessels of countries signatory to or adhering only to
International Load Line Convention, London, 1930 (the 1930 Convention),
and holding valid certificates issued under that Convention, are subject
to the applicable law described in paragraph (a) of this section and the
regulations prescribed thereunder in this subchapter.
[CGD 80-120, 47 FR 5722, Feb. 8, 1982, as amended by CGD 97-057, 62 FR
51043, Sept. 30, 1997; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998]
Sec. 42.03-15 The Great Lakes of North America.
(a) The term ``Great Lakes of North America'' means those waters of
North America which are defined in Sec. 42.05-40, and in the exception
in Article 5(2)(a) of the 1966 Convention.
(b) The expressions in the regulations in this part, such as
``voyages by sea,'' ``proceed to sea,'' ``arrive from the high seas,''
etc., shall be construed as having no application to voyages on the
Great Lakes or portions thereof unless specifically provided otherwise
in part 45 of this subchapter.
[CGFR 68-60, 33 FR 10050, July 12, 1968]
Sec. 42.03-17 Special load line marks for vessels carrying timber
deck cargo.
(a) Certain vessels having load line marks not related to carriage
of timber deck cargo may be assigned timber load lines if they are in
compliance with the applicable requirements governing timber deck
cargoes in this subchapter. The timber load lines apply and may be used
only when the vessel is carrying timber deck cargo.
(b) A new or existing vessel having timber load lines assigned to
it, when carrying timber deck cargo, may be loaded to the vessel's
timber load line applicable to the voyage and season.
[CGFR 68-60, 33 FR 10050, July 12, 1968, as amended by CGD 80-120, 47 FR
5722, Feb. 8, 1982]
Sec. 42.03-20 Equivalents.
(a) Where in this subchapter it is provided that a particular
fitting, material, appliance, apparatus, or equipment, or type thereof,
shall be fitted or carried in a vessel, or that a particular provision
shall be made or arrangement shall be adopted, the assigning authority,
with the prior approval of the Commandant, may accept in substitution
therefor any other fitting, material, apparatus, or equipment or type
thereof, or any other provision or arrangement: Provided, That it can be
demonstrated by trial thereof or otherwise that the substitution is at
least as effective as that required by the regulations in this
subchapter.
(b) In any case where it is shown to the satisfaction of the
assigning authority and the Commandant that the use of any particular
equipment, apparatus, or arrangement not specifically required by law is
unreasonable or impracticable, appropriate alternatives may be permitted
under such conditions as are consistent with the minimum standards set
forth in this subchapter.
[CGFR 68-60, 33 FR 10050, July 12, 1968]
Sec. 42.03-25 Experimental installations.
(a) Complete information (including plans, necessary instructions
and limitations, if any) on proposed experimental installations
affecting any fitting, material, appliance, apparatus, arrangement, or
otherwise shall be submitted to the assigning authority for evaluation.
After acceptance by the assigning authority, the complete information of
such installation shall be forwarded to the Commandant for specific
approval prior to installation. Complete information shall also be
furnished for any associated installation(s) deemed necessary to prevent
endangering the vessel during the trial period of proposed experimental
installations.
(b) The use of approved experimental installations shall be
permitted only when in accordance with instructions and limitations as
specifically prescribed for such installations by the Commandant.
[CGFR 68-60, 33 FR 10050, July 12, 1968]
Sec. 42.03-30 Exemptions for vessels.
(a) For an individual vessel or category of vessels, upon the
specific recommendation of the assigning authority, the Commandant may
authorize an
[[Page 10]]
exemption from one or more load line requirements. Such recommendation
and authorization will depend upon provision of any additional features
as deemed necessary by the authorities to ensure the vessel's safety in
the services and under the conditions specified in paragraph (b) of this
section.
(b) Exemptions from specific load line requirements for vessels
meeting requirements of paragraph (a) of this section are authorized,
subject to certain conditions, including type of voyage engaged in, as
follows:
(1) For vessels engaged on international voyages between the United
States and near neighboring ports of its possessions or of foreign
countries. The exemptions may be permitted because the requirements are
deemed to be unreasonable or impracticable due to the sheltered nature
of the waters on which the voyages occur or other conditions. These
exemptions shall be valid only so long as such a vessel shall remain
engaged on specific designated voyages. If the voyage involves a foreign
country or countries, the United States will require an exemption
agreement with such country or countries prior to the issuance of the
appropriate load line certificate.
(2) For vessels engaged on international voyages which embody
features of a novel kind, and where nonexemption may seriously impede
research, development, and incorporation of novel features into vessels.
If the voyage or voyages intended involve a foreign country or
countries, then the United States will require an exemption agreement
with such country or countries prior to the issuance of a Load Line
Exemption Certificate. If the Commandant grants an exemption pursuant to
this paragraph (b)(2) to a U.S. flag vessel that operates on the Great
Lakes of North America, he may notify the Chairman of the Board of
Steamship Inspection of Canada of the nature of the exemption, but no
special exemption certificate is issued.
(3) For a vessel not normally engaged on international voyages but
which is required to undertake a single international voyage under
exceptional circumstances.
(4) For self-propelled hopper dredges engaged on international
voyages or on limited service domestic voyages by sea. These vessels may
be exempt from applicable hatch cover requirements of Sec. 42.15-25 of
this part by showing they meet the requirements in Sec. 174.310 of this
chapter. When a Load Line Exemption Certificate is issued for this
exemption, it must have an endorsement that only seawater is allowed in
the vessel's hoppers.
(c) A vessel given one or more exemptions from load line
requirements under the provisions of paragraph (b)(1) of this section
will be issued the appropriate load line certificate, using Form A1, A2,
or A3. In each case the exemptions shall be specified on the load line
certificate together with the Convention authority which authorizes such
exemptions.
(d) A vessel given one or more exemptions under the provisions of
paragraph (b)(2) or (b)(3) of this section will be issued a Load Line
Exemption Certificate, using Form E1. This certificate shall be in lieu
of a regular load line certificate, and the vessel shall be considered
as in compliance with applicable load line requirements.
(e) The Commandant may exempt from any of the requirements of this
part a vessel that engages on a domestic voyage by sea or a voyage
solely on the Great Lakes and embodies features of a novel kind, if the
novel features and any additional safety measures required are described
on the face of the issued certificate.
(f) A vessel that is not usually engaged on domestic voyages by sea
or on voyages on the Great Lakes but that, in exceptional circumstances,
is required to undertake a single such voyage between two specific ports
is--
(1) Subject to 46 U.S.C. 5101-5116 and the applicable regulations of
this subchapter; and
(2) Issued a single voyage load line authorization by the Commandant
that states the conditions under which the voyage may be made and any
additional safety measures required for a single voyage.
[CGFR 68-126, 34 FR 9011, June 5, 1969, as amended by CGD 73-49R, 38 FR
12289, May 10, 1973; CGD 76-080, 54 FR 36976, Sept. 6, 1989; USCG-1998-
4442, 63 FR 52190, Sept. 30, 1998]
[[Page 11]]
Sec. 42.03-35 U.S.-flag vessels and Canadian vessels navigating on
sheltered waters of Puget Sound and contiguous west coast waters of
United States and Canada.
(a) In a Treaty between the United States and Canada proclaimed on
August 11, 1934, the respective Governments were satisfied of the
sheltered nature of certain waters of the west coast of North America.
It was agreed to exempt vessels of the United States and Canadian
vessels from load line requirements when such vessels engage on
international voyages originating on, wholly confined to, and
terminating on such waters. In Article I of this Treaty these waters are
described as follows: ``* * * the waters of Puget Sound, the waters
lying between Vancouver Island and the mainland, and east of a line from
a point 1 nautical mile west of the city limits of Port Angeles in the
State of Washington to Race Rocks on Vancouver Island, and of a line
from Hope Island, British Columbia, to Cape Calvert, Calvert Island,
British Columbia, the waters east of a line from Cape Calvert to Duke
Point on Duke Island, and the waters north of Duke Island and east of
Prince of Wales Island, Baranof Island, and Chicagof Island, the waters
of Peril, Neva, and Olga Straits to Sitka, and the waters east of a line
from Port Althorp of Chicagof Island to Cape Spencer, Alaska, are
sheltered waters * * *.''
(b) U.S.-flag vessels and Canadian vessels navigating on the treaty
waters on a voyage as described in paragraph (a) of this section are by
virtue of this Treaty of August 11, 1934, not subject to load line
requirements in 46 U.S.C. 5101-5116, the 1966 Convention, and the
regulations in this subchapter. Vessels navigating these sheltered
waters and passing outside their boundary on any voyage cannot claim the
benefits of this Treaty and shall be in compliance with the applicable
load line requirements in 46 U.S.C. 5101-5116, the 1966 Convention, and
the regulations in this subchapter.
(c) Since subdivision requirements apply to all passenger vessels
subject to the 1960 International Convention on Safety of Life at Sea,
those passenger vessels navigating on the waters described in paragraph
(a) of this section shall be in compliance with such 1960 Convention
requirements and the regulations in part 46 of this subchapter. The
Coast Guard issues to such a vessel a stability letter. The assigning
authority is authorized to issue to such a passenger vessel an
appropriate load line certificate, modified to meet the conditions
governing her service assignment, and marking.
[CGFR 68-60, 33 FR 10051, July 12, 1968, as amended by CGFR 68-126, 34
FR 9011, June 5, 1969; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998]
Subpart 42.05_Definition of Terms Used in This Subchapter
Sec. 42.05-1 Approved.
This term means approved by the Commandant, U.S. Coast Guard, unless
otherwise stated.
[CGFR 68-60, 33 FR 10051, July 12, 1968]
Sec. 42.05-10 Assigning authority.
This term means the ``American Bureau of Shipping'' or such other
recognized classification society which the Commandant may approve as
the load line assigning and issuing authority for a vessel, as provided
in sections 3 of the load line acts.
[CGFR 68-60, 33 FR 10051, July 12, 1968]
Sec. 42.05-20 Commandant.
This term means the Commandant (CG-ENG), Attn: Office of Design and
Engineering Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King
Jr. Avenue SE., Washington, DC 20593-7509.
[CGFR 68-60, 33 FR 10051, July 12, 1968, as amended by CGD 88-070, 53 FR
34534, Sept. 7, 1988; USCG-2013-0671, 78 FR 60147, Sept. 30, 2013]
Sec. 42.05-25 Coast Guard District Commander or District Commander.
These terms mean an officer of the Coast Guard designated as such by
the Commandant to command all Coast Guard activities within his
district. This includes enforcement of load line requirements as
described in this subchapter.
[CGFR 68-60, 33 FR 10051, July 12, 1968]
[[Page 12]]
Sec. 42.05-27 Credential.
As used in this subchapter, credential means any or all of the
following:
(a) Merchant mariner's document.
(b) Merchant mariner's license.
(c) STCW endorsement.
(d) Certificate of registry.
(e) Merchant mariner credential.
[USCG-2006-24371, 74 FR 11265, Mar. 16, 2009]
Sec. 42.05-30 Existing vessel.
(a) As used in this part 42, for a vessel engaged on international
voyages or on domestic voyages by sea, the term existing vessel means a
vessel which is not a new vessel. With few exceptions an existing vessel
is a vessel the keel of which was laid, or which was at a similar stage
of construction, prior to July 21, 1968. (See Sec. 42.05-50 for the
definition of a new vessel.)
(b)-(c) [Reserved]
(d) As used in part 44 of this subchapter, for a vessel marked with
load lines for special service on a coastwise or interisland voyage, the
term existing vessel means one whose keel was laid prior to September
28, 1937. (See Sec. 44.01-20 of this subchapter.)
(e) As used in part 45 of this subchapter, existing vessel in all
regulations pertaining to a vessel engaged solely on Great Lakes voyages
before April 14, 1973, means a vessel whose keel was laid before August
27, 1936. The regulations pertaining to these vessels that are in effect
after April 14, 1973, do not use the term existing vessel.
(f) As used in part 46 of this subchapter, for a passenger vessel
marked with subdivision load lines, the term existing vessel means a
vessel whose keel was laid or was converted to such service prior to May
26, 1965. (See Sec. 46.05-30 of this subchapter.)
[CGFR 68-60, 33 FR 10051, July 12, 1968, as amended by CGD 73-49R, 38 FR
12290, May 10, 1973; CGD 80-120, 47 FR 5722, Feb. 8, 1982]
Sec. 42.05-40 Great Lakes.
(a) This term means the Great Lakes of North America.
(b) As used in this part, the term solely navigating the Great Lakes
includes any special service coastwise navigation performed by the
vessel.
(c) In concurrence with related Canadian regulations, the waters of
the St. Lawrence River west of a rhumb line drawn from Cap de Rosiers to
West Point, Anticosti Island, and west of a line along 63[deg] W.
longitude from Anticosti Island to the north shore of the St. Lawrence
River shall be considered as a part of the Great Lakes. In addition, the
Victoria Bridge, Montreal, Canada, is the dividing line between fresh
water and salt water in the St. Lawrence River.
[CGFR 68-60, 33 FR 10051, July 12, 1968, as amended by CGD 73-49R, 38 FR
12290, May 10, 1973]
Sec. 42.05-45 International voyage.
(a) The term international voyage as used in this part shall have
the same meaning as the term international voyage in Article 2(4) of the
1966 Convention. Except for vessels operating solely on the waters
indicated in Article 5(2) of the 1966 Convention, an international
voyage means a sea voyage from any country to a port outside such
country, or conversely. For this purpose, every territory for the
international relations of which any specific Contracting Government is
responsible or for which the United Nations are the administering
authority is regarded as a separate country.
(b) The 1966 Convention does not apply to vessels solely navigating
the Great Lakes. Accordingly, such vessels shall not be considered as
being on an international voyage for the purpose of this subchapter.
(c) For the purpose of administration of load line requirements in
this subchapter, the Commonwealth of Puerto Rico, the Territory of Guam,
the Virgin Islands, and all possessions and lands held by the United
States under a protectorate or mandate shall each be considered to be a
territory of the United States.
[CGFR 68-60, 33 FR 10051, July 12, 1968]
Sec. 42.05-47 Marine inspector or inspector.
These terms mean any person from the civilian or military branch of
the Coast Guard assigned under the superintendence and direction of an
Officer in Charge, Marine Inspection, or any other person as may be
designated for the performance of duties with respect
[[Page 13]]
to the inspection, enforcement, and administration of title 52, Revised
Statutes, and acts amendatory thereof or supplemental thereto, and rules
and regulations thereunder.
[CGFR 68-60, 33 FR 10051, July 12, 1968]
Sec. 42.05-50 New vessel.
(a) As used in this part 42, for a vessel engaged on international
voyages or on domestic voyages by sea, the term new vessel means a
vessel, the keel of which is laid, or which is at a similar stage of
construction, on or after July 21, 1968. (See Sec. 42.05-30 for
definition of an existing vessel.)
(1) This definition applies to all vessels of countries signatory to
or acceding to the 1966 Convention prior to April 21, 1968, and to
vessels of countries not adhering to an applicable Convention as
indicated in Article 16(4) of the 1966 Convention.
(2) For countries which accede to the 1966 Convention after April
21, 1968, a new vessel (foreign) shall be one whose keel is
constructively laid 3 months or more after such date.
(b)-(c) [Reserved]
(d) As used in part 44 of this subchapter, for a vessel marked with
load lines for special service on a coastwise or interisland voyage, the
term new vessel means one whose keel is laid on or after September 28,
1937. (See Sec. 44.01-20 of this subchapter.)
(e) As used in part 45 of this subchapter, for a vessel engaged
solely on Great Lakes voyages, the term new vessel means one whose keel
is laid on or after August 27, 1936. (See Sec. 45.01-10 of this
subchapter.)
(f) As used in part 46 of this subchapter, for a passenger vessel
marked with subdivision load lines, the term new vessel means a vessel
whose keel is laid or is converted to such service on or after May 26,
1965. (See Sec. 46.05-25 of this subchapter.)
[CGFR 68-60, 33 FR 10051, July 12, 1968, as amended by CGD 80-120, 47 FR
5722, Feb. 8, 1982]
Sec. 42.05-55 Officer in Charge, Marine Inspection.
This term means any person from the civilian or military branch of
the Coast Guard designated as such by the Commandant and who, under the
superintendence and direction of the Coast Guard District Commander, is
in charge of a marine inspection zone, and may supervise or perform the
duties of a marine inspector.
[CGFR 68-60, 33 FR 10052, July 12, 1968]
Sec. 42.05-60 Recognized classification society.
The term recognized classification society means the American Bureau
of Shipping or other classification society recognized by the
Commandant, as provided in 46 U.S.C. 5107, and who also may be approved
as a load line assigning and issuing authority.
[CGFR 68-60, 33 FR 10052, July 12, 1968, as amended by USCG-1998-4442,
63 FR 52190, Sept. 30, 1998]
Sec. 42.05-63 Ship(s) and vessel(s).
The terms ship(s) and vessel(s) are interchangeable or synonymous
words, and include every description of watercraft, other than a
seaplane on the water, used or capable of being used as a means of
transportation on water.
[CGFR 68-126, 34 FR 9011, June 5, 1969]
Sec. 42.05-65 Surveyor.
The term surveyor means any person designated by the American Bureau
of Shipping or other classification society recognized by the Commandant
as the person who actually examines the vessel and/or materials
associated with such examination, and who ascertains such vessel
complies with applicable load line requirements.
[CGFR 68-60, 33 FR 10052, July 12, 1968]
Subpart 42.07_Control, Enforcement, and Rights of Appeal
Sec. 42.07-1 Load lines required.
(a) The vessels listed in Sec. Sec. 42.03-5 and 42.03-10 as subject
to the applicable requirements in this subchapter shall have load lines
accurately marked amidships, port and starboard, as provided in this
part 42 or the 1966 Convention, unless otherwise stated. Those vessels
issued load line exemption certificates may not be required to have load
line marks (see Sec. 42.03-30).
[[Page 14]]
(b) For vessels marked with international load lines and navigating
the Great Lakes, such vessels are also subject to requirements in part
45 of this subchapter while on the Great Lakes. See Sec. 45.9 of this
subchapter for load line marks used by such vessels.
(c) For Great Lakes vessels operating solely on Great Lakes voyages,
the requirements for the applicable load line marks are in part 45 of
this subchapter. Great Lakes vessels when making other international or
unlimited coastwise voyages shall comply with the applicable
requirements in parts 42, 44, and 45 of this subchapter.
(d) For coastwise steam colliers, barges, and self-propelled barges
in special services, the requirements for the applicable load line marks
are in part 44 of this subchapter. These requirements also include
certain regulations governing such vessels when they additionally engage
in Great Lakes voyages, international voyages or unlimited coastwise
voyages. Load line requirements in this part 42 also apply to such
vessels when engaged on international or unlimited coastwise voyages.
(e) Existing U.S.-flag vessels, as defined in Sec. 42.05-30(a) of
this chapter, engaged in international or coastwise voyages, may retain
the load line assigned under previous regulations, provided:
(1) The vessel has not been assigned a reduced freeboard under the
regulations in this part 42, and
(2) The form of the load line certificate issued to and carried on
board the vessel conforms to the requirements of subpart 42.50 of this
part or Sec. 44.05-35 or Sec. 46.10-30 of this chapter.
(f) This part applies to foreign vessels of countries--
(1) Signatory to or adhering to the 1966 Convention;
(2) Adhering to the 1930 Convention and not acceding to the 1966
Convention, or;
(3) Not adhering to either the 1930 Convention or the 1966
Convention but subject to the load line acts.
[CGFR 68-60, 33 FR 10052, July 12, 1968, as amended by CGFR 68-126, 34
FR 9011, June 5, 1969; CGD 73-49R, 38 FR 12290, May 10, 1973; CGD 80-
120, 47 FR 5722, Feb. 8, 1982]
Sec. 42.07-5 Marks placed on vessel to indicate load lines.
(a) Load line marks to indicate the maximum amidship's draft to
which a vessel can be lawfully submerged, in the various circumstances
and seasons, shall be permanently marked on each side of the vessel in
the form, manner, and location as required by this subchapter.
(b) The load line marks placed on a vessel shall be attested to by a
valid load line certificate as required by Sec. 42.07-45(b). The
issuing authority shall not deliver any required load line certificate
to the vessel until after its surveyor has ascertained that the vessel
meets the applicable survey requirements and the correct placement of
the marks on the vessel's sides has been confirmed.
(c) The requirements for load line marks apply to all new and
existing vessels as specified in Sec. Sec. 42.03-5 and 42.03-10, except
when a vessel has been issued a load line exemption certificate in lieu
of a load line certificate.
[CGFR 68-60, 33 FR 10052, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969]
Sec. 42.07-10 Submergence of load line marks.
(a) Except as provided otherwise in this section, vessels of the
types described in paragraphs (a)(1) through (a)(3) of this section
shall not be so loaded as to submerge at any time when departing for a
voyage by sea, or on the Great Lakes, or during the voyage, or on
arrival, the applicable load lines marked on the sides of the vessel for
the season of the year and the zone or area in which the vessel may be
operating.
(1) Merchant vessels of 150 gross tons or over, as described in
Sec. 42.03-5 or Sec. 42.03-10, and on voyages subject to 46 U.S.C.
5101-5116.
(2) All new vessels of 79 feet or over in length on voyages subject
to the 1966 Convention.
(3) All vessels of 150 gross tons or over, other than merchant
vessels covered by paragraph (a)(1) of this section, on voyages subject
to the 1966 Convention.
(b) When loading a vessel in a favorable zone for a voyage on which
the
[[Page 15]]
vessel will enter a less favorable zone, such allowances must be made
that the vessel when crossing into the less favorable zone, will conform
to the regulations and freeboard for the less favorable zone.
(c) When a vessel is in fresh water of unit density, the appropriate
load line may be submerged by the amount of the fresh water allowance
shown on the applicable load line certificate. Where the density is
other than unity, an allowance shall be made proportional to the
difference between 1.025 and the actual density. This paragraph does not
apply to vessels when navigating the Great Lakes.
(d) When a vessel departs from a port situated on a river or inland
waters, deeper loading shall be permitted corresponding to the weight of
fuel and all other materials required for consumption between the port
of departure and the sea. This paragraph does not apply to vessels when
navigating the Great Lakes.
[CGFR 68-60, 33 FR 10052, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998]
Sec. 42.07-15 Zones and seasonal areas.
(a) A vessel subject to 46 U.S.C. 5101-5116 or the 1966 Convention
shall comply, as applicable, with the requirements regarding the zones
and seasonal areas described in subpart 42.30.
(b) A port located on the boundary line between two zones or areas
shall be regarded as within the zone or seasonal area from or into which
the vessel arrives or departs.
[CGFR 68-60, 33 FR 10053, July 12, 1968, as amended by USCG-1998-4442,
63 FR 52190, Sept. 30, 1998]
Sec. 42.07-20 Logbook entries.
(a) As described in Sec. 3.13-35 of Subchapter A (Procedures
Applicable to the Public) of this chapter, official logbooks (Form CG-
706-C), are furnished free to certain vessels, and after they have
served their purpose they are filed with the applicable Officer in
Charge, Marine Inspection.
(b) The master shall be responsible for having entered in the
vessel's ``official logbook'' if carried, otherwise in his own log
considered as its official logbook, the data required by section 6 of
the load line acts. These logbooks entries shall be made before a vessel
departs from her loading port or place and consist of:
(1) A statement of the load line marks applicable to the voyage;
and,
(2) A statement of the position of the load line marks, port and
starboard, at the time of departing from a port or place; i.e., the
distance in inches of the water surface above or below the applicable
load line; and,
(3) The actual drafts of the vessel, forward and aft, as nearly as
the same can be ascertained, at the time of departing from a port or
place.
(c) Where the master uses his own log, it shall be kept by the
master or owner for 1 year after the actions noted therein have been
completed and upon request shall be furnished to any load line
enforcement officer.
[CGFR 68-60, 33 FR 10053, July 12, 1968]
Sec. 42.07-25 Approval of the Commandant.
(a) Where the requirements in this subchapter state that the
approval of the Commandant is necessary, the owner or his agent shall
furnish all information necessary, including background material, and/or
final plans, calculations, and conclusions reached, as will enable the
Commandant to obtain a comprehensive understanding of and reach a
decision relative to the question or problem at issue prior to
proceeding with the work. All information, plans and calculations
submitted will remain with the Commandant as a part of the record on the
vessel.
(b) If the owner or his agent desires to have information, plans,
and calculations returned with Commandant's actions noted thereon, or if
distribution of such information is necessary or required by regulations
in this subchapter to owners, masters of vessels, etc., then the owner
or his agent shall furnish multiple copies of the information as
required.
[CGFR 68-60, 33 FR 10053, July 12, 1968]
[[Page 16]]
Sec. 42.07-30 Approval of the assigning authority.
(a) Where the requirements in this subchapter state the approval of
an assigning authority is required, the owner or his agent shall furnish
the required information, including plans, etc., as required by and
which will enable the assigning authority to obtain a comprehensive
understanding of the matter and to reach pertinent decisions prior to
proceeding with the work. When requested the assigning authority shall
furnish the Coast Guard all information, etc., on any question at issue
and decisions reached.
(b) All information required under this subchapter by an assigning
authority with respect to a specific vessel shall be retained until 5
years after termination of certification by such authority.
[CGFR 68-60, 33 FR 10053, July 12, 1968]
Sec. 42.07-35 American Bureau of Shipping as an assigning authority.
(a) The American Bureau of Shipping, with its home office at ABS
Plaza, 16855 Northchase Drive, Houston, TX 77060, is hereby appointed as
the prime assigning and issuing authority under the provisions of
Articles 13 and 16(3) of the 1966 Convention and as directed by 46
U.S.C. 5107. In this capacity the American Bureau of Shipping is
empowered to assign load lines, to perform surveys required for load
line assignments, and to determine that the position of and the manner
of marking vessels has been done in accordance with applicable
requirements.
(b) On behalf of the United States of America, the American Bureau
of Shipping is authorized to issue or reissue, under its own seal and
signature of its officials, the appropriate load line certificates or
International Load Line Exemption Certificate as described in subpart
42.50 of this part or in parts 44 to 46, inclusive, of this subchapter.
Except for the International Load Line Exemption Certificate, the
required load line certificate issued to a specific vessel shall certify
to the correctness of the load line marks assigned and marked on the
vessel and compliance with authorized conditions, restrictions, and/or
exemptions, if any. The International Load Line Exemption Certificate
when issued to a vessel shall certify as to the compliance with the
information applicable to the vessel.
(c) The designation and delegation to the American Bureau of
Shipping as an assigning and issuing authority shall be in effect
indefinitely unless for due cause it shall be terminated by proper
authority and notice of cancellation is published in the Federal
Register.
(d) The American Bureau of Shipping is authorized to revalidate from
time to time by endorsement a load line certificate or an International
Load Line Exemption Certificate.
(e) Before revalidating any certificate by endorsement, the American
Bureau of Shipping shall verify that the required load line marks
assigned are marked on the vessel and the vessel is in compliance with
authorized conditions, restrictions, and/or exemptions, if any.
(f) The American Bureau of Shipping shall issue all load line
certificates in duplicate; one copy shall be delivered to the owner or
master of the vessel, and one copy (together with a summary of data used
to determine the assigned load lines) shall be forwarded to the
Commandant.
(g) The American Bureau of Shipping shall prepare a load line survey
report on each new vessel or existing vessel when brought into complete
compliance with this part prior to issuing the required load line
certificate described in subpart 42.50 of this part. At the time the
certificate is delivered, one copy of this report shall be delivered to
the master of the vessel, and one copy shall be forwarded to the
Commandant. When a load line survey report is superseded or revised, one
copy shall be delivered to the master of the vessel, and one copy shall
be forwarded to the Commandant.
(h) The load line survey report or stability information furnished
to a specific vessel shall include a statement of
[[Page 17]]
the locations of all watertight subdivision bulkheads, including steps
or recesses therein, which may be involved in the vessel's load line
assignment.
[CGFR 68-60, 33 FR 10053, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; CGD 80-143, 47 FR 25149, June 10, 1982; CGD 96-
041, 61 FR 50727, Sept. 27, 1996; USCG-1998-4442, 63 FR 52190, Sept. 30,
1998; USCG-2000-7790, 65 FR 58459, Sept. 29, 2000]
Sec. 42.07-40 Recognized classification society as an assigning authority.
(a) On behalf of the United States of America, under the provisions
of Articles 13 and 16(3) and as provided in 46 U.S.C. 5107, the
Commandant, at the request of a shipowner, may appoint any other
recognized classification society, which he may approve, as the
assigning and issuing authority who shall perform the same functions and
duties as indicated in Sec. 42.07-35 for the American Bureau of
Shipping.
(b) The appointment of a recognized classification society as the
assigning and issuing authority will be limited to vessels specifically
designated by the Commandant.
[CGFR 68-60, 33 FR 10053, July 12, 1968, as amended by USCG-1998-4442,
63 FR 52190, Sept. 30, 1998]
Sec. 42.07-43 Change in assigning authority.
(a) If the owner desires a change in assigning and issuing authority
for a vessel, a special request shall be made in writing to the
Commandant at least 90 days prior to the expiration date of the present
certificate or the annual endorsement thereon.
(b) A change in the assigning authority does not presume any change
in assigned load lines.
[CGFR 68-60, 33 FR 10053, July 12, 1968]
Sec. 42.07-45 Load line certificates.
(a) The load line certificates for which the Government of the
United States of America assumes full responsibility may be issued by
the Commandant, the American Bureau of Shipping, or a recognized
classification society when appointed as an authorized assigning and
issuing authority for specifically designated vessels.
(b) The load line certificate shall certify to the correctness of
the load line marks assigned to the vessel and that the vessel is in
compliance with applicable requirements. A certificate issued under this
subchapter also shall describe the applicable load line marks,
conditions, restrictions, and/or exemptions, if any, the vessel shall
observe, according to the season of the year and the zone or area in
which the vessel may operate. The load line exemption certificate issued
under Sec. 42.03-30 shall certify the special conditions the vessel
shall observe.
(c) A load line assignment and certificate issued to any vessel
under the authority of the regulations in this subchapter (or under the
authority of any Government adhering to the 1966 Convention, under the
provisions of Article 19(5) of the 1966 Convention) shall cease to be
valid upon the transfer of such vessel to the flag of another
Government.
(d) Each loadline certificate is issued for the following length of
time:
(1) An international and coastwise certificate is issued for 5 years
and may be extended by the Commandant up to 150 days from the date of
the--
(i) Survey that is endorsed on the certificate by the surveyor
authorized by the Coast Guard; or
(ii) Last day of the 5-year period.
(2) A Great Lakes certificate is issued for 5 years and may be
extended by the Commander, Ninth Coast Guard District, up to 365 days
from date of the--
(i) Survey that is endorsed on the certificate by the surveyor
authorized by the Coast Guard; or
(ii) Last day of the 5-year period.
(e) The form of certificate certifying to the correctness of the
load line marks, assigned under the regulations in this part, may be in
the form of temporary or provisional certificate, signed by the
authorized surveyor pending early issuance of appropriate certificate as
shown in subpart 42.50 of this part as follows:
(1) International Load Line Certificate, 1966, issued to U.S.
vessels engaged in foreign voyages, or engaged in coastwise or
intercoastal voyages (provided such vessels qualify to engage in foreign
voyages without restriction), as follows:
(i) Form A1, For general use.
(ii) Form A2, For sailing vessels.
[[Page 18]]
(iii) Form A3, For general use, combined with timber deck cargo.
(2) Certificate issued to foreign vessels belonging to countries
that have not ratified or acceded to the 1966 Convention as follows:
(i) Form B, For general use.
(3) Coastwise load line certificate (other than for special service
as provided for by part 44 of this subchapter) issued to U.S. vessels
engaged solely in coastwise and/or intercoastal voyages (which may be
subject to restrictions as to manning, routes, seasons, waters of
operations, etc., as shown on the face of the certificate), as follows:
(i) Form C1, For general use.
(ii) Form C2, For sailing ships.
(iii) Form C3, For general use, combined with timber deck cargo.
(f) The form of certificate certifying to the correctness of
exemptions granted under the regulations in this part shall be as shown
in subpart 42.50 of this part as follows:
(1) International load line exemption certificate issued under
special conditions to U.S.-flag vessels engaged in foreign voyages, as
follows:
(i) Form E1, For general international use.
(ii) Where this certificate is intended to expire after a single
voyage, this information shall be noted on the face of the certificate.
(2) International load line certificate Form A1, A2, or A3 issued
under special conditions to U.S.-flag vessels on international voyages
between the United States and near neighboring ports of its possessions
or of foreign countries. Exemptions, if any, shall be specified on the
certificate.
(g) The issuing authority shall provide the printed forms it may use
under the regulations in this subchapter. These forms shall be approved
by the Commandant before final printing. The international load line
certificate and exemption certificate forms shall exactly reproduce the
arrangement of the printed part of the model Forms A1, A2, A3, and E1
indicated in subpart 42.50 of this part for all official copies and any
certified copies issued.
(h) Where a vessel qualifies for and is issued a Form E1
International Load Line Exemption Certificate for foreign voyages but is
also or solely engaged in coastwise or intercoastal voyages by sea, this
certificate shall be considered equivalent to a valid coastwise load
line certificate. In such case the vessel shall be deemed in full
compliance with 46 U.S.C. 5101-5116 and the regulations in this part
promulgated thereunder.
[CGFR 68-60, 33 FR 10054, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; CGD 73-49R, 38 FR 12290, May 10, 1973; CGD 74-
153, 39 FR 25324, July 10, 1974; CGD 80-120, 47 FR 5722, Feb. 8, 1982;
CGD 96-006, 61 FR 35964, July 9, 1996; USCG-1998-4442, 63 FR 52190,
Sept. 30, 1998]
Sec. 42.07-50 Penalties for violations.
(a) The penalties for violation of various provisions of the load
line acts or the regulations established thereunder are set forth in 46
U.S.C. 5116. The Secretary of Transportation by 49 CFR 1.46(b) has
transferred to the Commandant authority to assess, collect, remit or
litigate any monetary penalty imposed under these laws.
(b) The master and/or owner of a vessel that is operated, navigated,
or used in violation of the provisions of the load line acts, or the
regulations in this subchapter will be subject to the penalties as set
forth in law, and the vessel shall also be liable therefor. Depending
upon the gravity of the violations, the Coast Guard may do any one or
more of the following:
(1) Detain a vessel if deemed to be overloaded in violation of title
46 U.S.C. 5112, in accordance with 46 U.S.C. 5113 and have the vessel
surveyed by three disinterested surveyors.
(2) Assess and collect applicable monetary penalties for certain
violations as provided in 46 U.S.C. 5112 and 5116.
(3) Initiate a criminal prosecution for certain violations when
required by 46 U.S.C. 5112 or 5116.
(4) Initiate an action of libel against the vessel involved if there
is a failure to pay monetary penalties assessed.
(5) Initiate a suspension or revocation proceeding, in addition to
the foregoing actions described in this paragraph against any officer or
seaman holding a valid Coast Guard credential and who may violate any
provision of the load line acts, the 1966 Convention, or the regulations
in this subchapter,
[[Page 19]]
under the provisions of 46 U.S.C. chapter 77, and the regulations in 46
CFR part 5.
(c) In determining offenses, 46 U.S.C. 5116 provides that `Each day
of a continuing violation is a separate violation' and
(d) The procedures governing the assessment, collection, remission
and litigation of any monetary penalty proposed under 46 U.S.C. 5116 for
a violation of either load line law or the applicable regulations in
this subchapter, as well as the appeal procedures to be allowed, are in
33 CFR subpart 1.07.
[CGFR 68-60, 33 FR 10054, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; CGD 80-120, 47 FR 5722, Feb. 8, 1982; CGD 97-057,
62 FR 51043, Sept. 30, 1997; USCG-2006-24371, 74 FR 11265, Mar. 16,
2009]
Sec. 42.07-55 Cancellation of load line certificates or exemption
certificates.
(a) Since vessels described in Sec. 42.03-5 or Sec. 42.03-10 when
found qualified are issued appropriate load line certificates or load
line exemption certificates, under U.S. responsibility as indicated in
Sec. 42.07-45 such certificates may be canceled by proper U.S.
authority for due cause, including one or more of the causes listed in
paragraph (b) of this section. Such action may occur prior to the
expiration date on the certificate and normal certificate surrender. The
cancellation of such certificate means that the correctness of load line
marks and compliance with conditions of assignment for the named vessel
no longer are recognized by the United States and that the existing
assigned load line marks are voided.
(b) Certain causes for automatic cancellation of certificates are:
(1) The conditions of assignment have not been maintained as
required by this subchapter.
(2) Material alterations have taken place in the hull or
superstructure of the vessel, which will necessitate the assignment of
an increased freeboard.
(3) The fittings and appliances have not been maintained in an
effective condition for the protection of openings, guardrails, freeing
ports, and means of access to crew's quarters.
(4) The structural strength of the vessel is lowered to such an
extent that the vessel is unsafe.
(5) The load line certificate or International Load Line Exemption
Certificate is not endorsed to show the vessel has been surveyed
annually or periodically by the issuing authority as required by this
part or the 1966 Convention.
(6) Issuance of a new load line certificate for the same vessel.
(7) Surrender of a certificate for cancellation when required.
(8) The owner, master, or agent of the vessel has furnished false or
fraudulent information in or with the application for a certificate.
[CGFR 68-60, 33 FR 10054, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969]
Sec. 42.07-60 Control.
(a) The Director, Field Operations (DFO) or the Coast Guard District
Commander may detain a vessel for survey if there is reason to believe
that the vessel is proceeding on her journey in excess of the draft
allowed by the regulations in this subchapter as indicated by the
vessel's load line certificate, or otherwise. The Coast Guard District
Commander may detain a vessel if it is so loaded as to be manifestly
unsafe to proceed to sea.
(b) If the Director, Field Operations (DFO) orders a vessel
detained, he shall immediately inform the Coast Guard District Commander
thereof, who shall thereupon advise the Director, Field Operations (DFO)
whether or not he deems that the vessel may proceed to sea with safety.
If the Coast Guard District Commander orders a vessel detained, such
officer will furnish the Director, Field Operations (DFO) immediate
notification of such detention. The clearance shall be refused to any
vessel which shall have been ordered detained, which shall be in effect
until it is shown that the vessel is not in violation of the applicable
law and the regulations in this subchapter.
(1) Where a vessel is detained for noncompliance with ``material
alteration'' and ``effective maintenance'' requirements of paragraph
(f)(1) of this section, the detention shall only be exercised insofar as
may be necessary to
[[Page 20]]
ensure that the vessel can proceed to sea without danger to passengers
or crew.
(c) The detention of a vessel will be by written order of either the
Coast Guard District Commander or the Director, Field Operations (DFO),
depending on who orders the detention. The Coast Guard District
Commander will immediately arrange for a survey in the manner prescribed
by 46 U.S.C. 5113. Unless the owner or agent waives in writing and
stipulates to accept the Coast Guard's survey, the Coast Guard District
Commander shall appoint three disinterested surveyors and, where
practicable, one of them shall be from the Surveying Staff of the
American Bureau of Shipping. Such surveyors shall conduct a survey to
ascertain whether or not the vessel is loaded in violation of the
applicable provisions in the load line acts, and the regulations in this
subchapter. If the survey confirms the allegation that the vessel is in
violation of either law or the applicable regulations in this
subchapter, ``the owner and agent shall bear the costs of the survey in
addition to any penalty or fine imposed'', as provided in these laws.
(d) Whenever a vessel is detained, the master or owner may, within 5
days, appeal to the Commandant who may, if he desires, order a further
survey, and may affirm, set aside, or modify the order of the detaining
officer.
(e) Where a foreign vessel is detained or intervention action of any
other kind is taken against a foreign vessel, the officer carrying out
the action shall immediately inform in writing the Consul or the
diplomatic representative of the State whose flag the vessel is flying,
of the decision involved together with all pertinent circumstances under
which intervention was deemed necessary.
(f) Under 46 U.S.C. 5109 a vessel of a foreign country which has
ratified the 1966 Convention, or which holds a recognized and valid 1930
Convention certificate, or which holds a valid Great Lakes Certificate,
shall be exempt from the provisions of the regulations in this
subchapter insofar as the marking of the load lines and the
certificating thereof are concerned, so long as such country similarly
recognizes the load lines established by this subchapter for the purpose
of a voyage by sea subject to the proviso in paragraph (f)(1) of this
section or the alternative proviso in paragraph (f)(2) of this section.
(1) If the foreign vessel is marked with load lines and has on board
a valid International or Great Lakes Load Line Certificate certifying to
the correctness of the marks, the control provisions in this part which
are in accord with Article 21 of the 1966 Convention shall be observed.
In this connection, the vessel shall not be loaded beyond the limits
allowed by the certificate. The position of the load lines on the vessel
shall correspond with the certificate. The vessel shall not have been so
materially altered as to make the vessel manifestly unfit to proceed to
sea without danger to human life, in regard to:
(i) The hull or superstructure (if necessitating assignment of an
increased freeboard); and/or,
(ii) The appliances and fittings for protection of openings,
guardrails, freeing ports, and means of access to crew's quarters (if
necessitating replacement or other effective maintenance).
(2) (Alternatively provided) If the foreign vessel has on board an
International Load Line Exemption Certificate in lieu of an
International Load Line Certificate, 1966, in such case, verify that it
is valid and any conditions stipulated therein are met.
(g) A foreign vessel of a nation for which the 1966 Convention has
not come into force does not qualify for an International Load Line
Certificate, 1966. In lieu thereof, such a vessel shall be required to
have on board a valid Form B load line certificate or a recognized 1930
Convention certificate.
[CGFR 68-60, 33 FR 10055, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998;
USCG-2012-0832, 77 FR 59777, Oct. 1, 2012]
Sec. 42.07-75 Right of appeal.
Any person directly affected by a decision or action taken under
this subchapter, by or on behalf of the Coast
[[Page 21]]
Guard, may appeal therefrom in accordance with subpart 1.03 of this
chapter.
[CGD 88-033, 54 FR 50380, Dec. 6, 1989]
Subpart 42.09_Load Line Assignments and Surveys_General Requirements
Sec. 42.09-1 Assignment of load lines.
(a) The assignment of load lines is conditioned upon the structural
efficiency and satisfactory stability of the vessel, and upon the
provisions provided on the vessel for her effective protection and that
of the crew. Certain vessels, such as vessels carrying all their cargo
as deck cargo, or vessels where design or service require special
conditions to be applicable, shall have certain stability limitations
imposed on them, as may be necessary. When stability limitations for a
vessel are prescribed, the assigning authority shall furnish the master
the vessel's maximum draft permitted and other conditions, including
reference to Commandant approved operating stability features, which may
be applicable.
(1) No load line assignment shall be made under this part to a
vessel proceeding on a foreign voyage, or where the load line assignment
is related to the flooded stability provisions and the vessel is
proceeding on a domestic voyage, until the applicable light ship
characteristics are established and incorporated into the vessel's
stability data approved by the Commandant and furnished to the master of
the vessel.
(2) If load line assignments are made to vessels for coastwise
voyages before the results of the required stability characteristics are
determined and incorporated into the vessel's stability data approved by
the Commandant, then such load line assignments shall be regarded as
conditional and shall be subject to verification or modification for
removal of the conditional status. Any vessel with a conditional load
line assignment shall not be loaded beyond a conservative safe draft.
Where the Commandant deems it unnecessary, the requirement for
furnishing stability information to the masters of coastwise vessels
assigned load lines not related to flooded stability may be omitted and
the assigning authority and others concerned will be so notified.
(b) Each vessel subject to load line requirements shall carry on
board a valid certificate attesting to compliance with such
requirements. (See Sec. Sec. 42.07-35 and 42.07-40 for additional data
furnished to the vessel.)
(c) The master of the vessel for which a load line certificate has
been issued shall be responsible for the maintenance of such certificate
on board such vessel and for compliance with its terms and conditions.
Additionally, the master shall be responsible for having the current
load line survey report on board the vessel. This report shall be made
available to surveyors when carrying out subsequent load line surveys.
[CGFR 68-60, 33 FR 10055, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969]
Sec. 42.09-5 All vessels--division into types.
(a) For the purposes of this part, each vessel to which this part
applies is either a Type ``A'' or a Type ``B'' vessel.
(b) A Type ``A'' vessel is a vessel that--
(1) Is designed to carry only liquid cargoes in bulk;
(2) Has a high degree of watertight and structural integrity of the
deck exposed to the weather, with only small openings to cargo
compartments that are closed by watertight gasketed covers of steel or
other material considered equivalent by the Commandant; and
(3) Has a low permeability of loaded cargo compartments.
(c) A Type ``B'' vessel is any vessel that is not a Type ``A''
vessel.
(d) Requirements governing the assignment of freeboards for Types
``A'' and ``B'' vessels are in subparts 42.20 and 42.25 of this part.
[CGD 79-153, 48 FR 38647, Aug. 25, 1983]
Sec. 42.09-10 Stability, subdivision, and strength.
(a) All vessels. Where regulations in this part, or in part 46 of
this subchapter, require or permit load line assignment on the basis of
the vessel's ability to meet specified flooding, including damage
stability requirements,
[[Page 22]]
the owner shall furnish the necessary plans and calculations
demonstrating that the vessel is in compliance with the applicable
requirements. This material shall be furnished to the assigning
authority for approval review at the earliest practicable date except
where specifically required by part 46 of this subchapter for passenger
vessels to be submitted to the Commandant for approval.
(1) When stability information is required, the plans shall include
the location and extent of all watertight subdivision bulkheads, etc.,
involved.
(2) Additional stability, subdivision, and strength requirements are
in Sec. Sec. 42.09-1, 42.13-1, 42.13-5, and 42.15-1. The applicable
flooded stability requirements are in Sec. Sec. 42.20-3 through 42.20-
13.
(b) Passenger vessels. In passenger vessels where the positions of
the maximum load lines is subject to determination by the application of
subdivision and stability requirements in this subchapter, the
provisions of both parts 42 and 46 shall be accounted for and developed
as necessary. See subchapter H (Passenger Vessels) of this chapter for
related data required to be submitted to the Commandant.
(c) Light ship data. All plans, etc., necessary for obtaining the
Commandant's approval of test results (light ship data) and stability
information shall be furnished by the owner. In the absence of existing
acceptable light ship stability information, such data shall be obtained
from a stability test performed under the supervision of the Commandant.
Results of such tests, if satisfactory, will be approved by the
Commandant.
[CGFR 68-60, 33 FR 10056, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; CGD 79-153, 48 FR 38647, Aug. 25, 1983]
Sec. 42.09-15 Surveys by the American Bureau of Shipping or assigning
authority.
(a) General. Before issuing a certificate or placement of load line
marks on a vessel, the assigning and issuing authority shall make an
initial or periodic survey of the vessel as required by this subchapter.
A load line survey report shall be made, reflecting information and
facts based on initial surveys, including required and special elements
as may be deemed necessary by the assigning authority or the Commandant.
(b) Initial survey. An initial survey shall be made before the
vessel is put in service or the first time the assigning authority is
requested to survey a vessel. The survey shall include a complete
examination of its structure and equipment insofar as required by the
applicable requirements in this subchapter. This survey shall be such as
to ensure that the arrangements, materials, scantlings, and subsequent
placement of load line marks fully comply with applicable requirements.
(c) Periodical survey. A periodical survey shall be made at
intervals not exceeding five (5) years from an initial or previous
periodic survey. The survey shall be similar to the initial survey
insofar as extent and purpose are concerned.
(1) If the load line marks are found to be correct for the condition
the vessel is then in, the assigning and issuing authority shall issue a
new load line certificate, valid for such time as the condition of the
vessel then warrants but in no case for a period of longer than 5 years.
If, after a survey has been passed, a loadline certificate can not be
issued before the current certificate expires, the current certificate
may be extended by an endorsement in accordance with the requirements
contained in Sec. 42.07-45(d). This endorsement of the assigning
authority shall be placed on the back of the certificate, as shown on
the forms in subpart 42.50. However, if there have been alterations
which affect the vessel's freeboards, such extension shall not be
granted. This prohibition is the same as in Article 19(2) of the 1966
Convention.
(2) The periodical survey, including certificate extension or
reissue, for a vessel holding an international load line exemption
certificate for more than one voyage, shall be the same as for any other
vessel covered by this section except for load line marks. However,
other conditions specified in the exemption certificate shall be
verified.
(d) Annual surveys for endorsements. Vessels subject to initial and
periodic surveys shall have annual surveys,
[[Page 23]]
within 3 months either way of the certificate's anniversary date. The
annual surveys shall be made by and prove satisfactory to the assigning
and issuing authority prior to executing the required annual
endorsements on load line certificates or exemption certificates. The
scope shall be as defined in Sec. 42.09-40 and such as to ensure that
the applicable load line marks are found to be correct for the condition
the vessel is then in.
[CGFR 68-60, 33 FR 10056, July 12, 1968, as amended by CGFR 68-126, 34
FR 9012, June 5, 1969; CGD 73-49R, 38 FR 12290, May 10, 1973]
Sec. 42.09-20 Surveys of foreign vessels.
(a) General. Foreign vessels of countries which have not ratified or
acceded to the 1966 Convention, or which do not have valid certificates
issued under other international convention or treaty and recognized by
the United States of America, if desiring to depart from a port or place
in the United States, the Commonwealth of Puerto Rico, the Territory of
Guam, or other U.S. possessions, shall be subjected to survey, marking,
and certification by a load line assigning and issuing authority as
authorized under Sec. 42.07-35 or Sec. 42.07-40, unless:
(1) The vessel is exempted by the provision of 46 U.S.C. 5102; or
(2) The vessel is under tow and carrying neither passengers nor
cargo.
(b) Scope of survey. A periodical survey described in Sec. 42.09-
15(c) shall be conducted by and prove satisfactory to the assigning and
issuing authority. It shall be made prior to issue or reissue of the
applicable certificate.
(c) Certification of load lines. The assigning and issuing authority
after determining the vessel meets the applicable requirements in this
part may issue a load line certificate subject to requirements in Sec.
42.07-45 and on the applicable form described in subpart 42.50 of this
part: Provided, That the load line certificate issued shall be valid for
a period of 1 year. The certificate may be revalidated by endorsement
for additional 1 year periods if the condition of the vessel so
warrants, but in any event the certificate shall become void five (5)
years from date of issue, or at the expiration of the fourth (4th)
yearly validation, whichever occurs first. Whenever the condition of the
vessel warrants special limitations, such information and facts shall be
attested to on the front or back of the certificate as necessary, by the
assigning and issuing authority.
[CGFR 68-60, 33 FR 10056, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969; CGD 80-120, 47 FR 5723, Feb. 8, 1982; USCG-1998-
4442, 63 FR 52190, Sept. 30, 1998]
Sec. 42.09-25 Initial or periodic survey requirements for all vessels.
(a) Before a survey may be completed, the vessel shall be placed in
a drydock or hauled out. The surveyor shall be given complete access to
all parts of the vessel to ensure that the vessel complies with all
applicable requirements.
(b) The surveyor shall examine on all vessels the items, etc.,
listed in this paragraph to determine if in satisfactory condition and
meeting applicable requirements in this subchapter.
(1) Cargo hatch coamings, covers, beams and supports, gaskets,
clamps, locking bars, tarpaulins, battens, cleats and wedges of hatches
on exposed freeboard, quarter and superstructure decks, and elsewhere as
may be necessary.
(2) Structure of the vessel, coamings, closures, and all means of
protection provided for openings, such as for ventilators,
companionways, machinery casings, fiddleys, funnels, enclosed
superstructures on the freeboard deck (and their end bulkheads) or
equivalent protective deck houses, openings in the freeboard and
superstructure decks, and significant openings at higher levels in the
vessel.
(3) Transverse watertight subdivision bulkheads, as fitted,
including any openings therein and closures for such openings. They
shall be examined throughout their vertical and transverse extent.
(4) All air-pipe outlets, their closures, all scuppers, and all
sanitary discharges in the vessel's sides, including nonreturn valves
installed.
(5) The main and auxiliary sea inlets and discharges in the
machinery space, and elsewhere if existent, and the valves and controls
for these items.
(6) All gangways, cargo ports, and airports, including dead covers
or other
[[Page 24]]
similar openings in the vessel's sides and their closures.
(7) All guardrails, bulwarks, gangways, and freeing port shutters,
including securing devices, and bars.
(8) All eye plates or similar fittings for timber (or other) deck-
cargo lashings, including the lashings, sockets for uprights and
protective devices as may be necessary for ventilators and steering
arrangements.
[CGFR 68-60, 33 FR 10056, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.09-30 Additional survey requirements for steel-hull vessels.
(a) In addition to the requirements in Sec. 42.09-25, the surveyor
of the assigning authority shall examine the items, etc., listed in this
section, to determine if in satisfactory condition and meeting
applicable requirements in this subchapter.
(b) When the vessel is in drydock, the hull plating, etc., shall be
examined.
(c) The holds, 'tween decks, peaks, bilges, machinery spaces, and
bunkers shall be examined to determine the condition of the framing,
etc.
(d) The deep tanks and other tanks which form part of the vessel
shall be examined internally.
(e) If a double bottom is fitted, the tanks normally shall be
examined internally. Where double bottom and other tanks are used for
fuel-oil bunkers, such tanks need not be cleaned out, if the surveyor is
able to determine by an external examination that their general
condition is satisfactory.
(f) The deck shall be examined.
(g) Where, owing to the age and condition of the vessel or
otherwise, the surveyor deems it necessary, the shell and deck plating
may be required to be drilled or other acceptable means used, in order
to ascertain the then thickness of such plating.
[CGFR 68-60, 33 FR 10057, July 12, 1968]
Sec. 42.09-35 Additional survey requirements for wood-hull vessels.
(a) In addition to the requirements in Sec. 42.09-25, the surveyor
of the assigning authority shall examine the items, etc., listed in this
section, to determine if in satisfactory condition and meeting the
applicable requirements in this subchapter.
(b) When the vessel is in drydock or hauled out, the keel, stem,
stern frame or sternpost, outside planking, and caulking shall be
examined.
(c) The fasteners shall be examined. Bolts, screws, or equivalent
fastenings, as deemed necessary by the surveyor, must be backed out, or
otherwise dealt with, to ensure soundness.
(d) The holds, 'tween decks, peaks, bilges, machinery spaces, and
bunkers shall be examined.
(e) The entire structure, including decks, shall be examined. If
considered necessary by the surveyor, borings shall be made, or other
means may be used, to ascertain the condition of the materials. Should
these measures disclose sufficient cause, further examination to satisfy
the surveyor as to the true condition shall be made and check locations
listed. This list shall be submitted to the assigning and issuing
authority for record purposes, and for use in subsequent surveys.
[CGFR 68-60, 33 FR 10057, July 12, 1968]
Sec. 42.09-40 Annual surveys.
(a) Relative to Sec. Sec. 42.09-15(d) and 42.09-20(c), the
assigning and issuing authority shall make an annual survey of each
vessel holding an appropriate certificate issued under this subchapter.
(b) The annual survey shall be of such scope and extent so as to
ensure:
(1) The maintenance in an effective condition of the fittings and
appliances for the:
(i) Protection of openings;
(ii) Guardrails;
(iii) Freeing ports; and,
(iv) Means of access to crew's quarters.
(2) That there have not been alterations made to the hull or
superstructure which would affect the calculations determining the
position of the load line marks.
(c) The assigning and issuing authority shall report on the annual
survey made to the owner of the vessel.
[CGFR 68-60, 33 FR 10057, July 12, 1968, as amended by CGD 80-143, 47 FR
25149, June 10, 1982]
[[Page 25]]
Sec. 42.09-45 Correction of deficiencies.
(a) During and after any survey made by the assigning and issuing
authority, those items, fittings, etc., which are found to be in an
unsatisfactory condition by the surveyor shall be repaired or renewed in
order to place the vessel in a satisfactory condition.
(b) No load line certificate shall be issued, endorsed, extended, or
reissued or delivered to a vessel subject to this subchapter until after
unsatisfactory conditions have been corrected as required by paragraph
(a) of this section.
[CGFR 68-60, 33 FR 10057, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.09-50 Repairs or alterations to vessel after it has been surveyed.
(a) After any survey of the vessel made under Sec. Sec. 42.09-25 to
42.09-40, inclusive, as applicable, has been completed and deficiencies
corrected as provided in Sec. 42.09-45, no change shall be made in the
vessel's structure, equipment, arrangement, material, or scantlings as
covered by such survey, without the prior specific approval of the
assigning and issuing authority.
(b) To avoid a freeboard or other penalty, any vessel which
undergoes repairs, alterations, or modifications, including outfitting
related thereto, shall continue to comply with the applicable
requirements consistent with the load line certificate held.
(c) An existing vessel, which had a load line assigned under
previous regulations which undergoes repairs, alterations, or
modifications of a major character, shall meet the requirements for a
new vessel in this part insofar as the assigning and issuing authority
and the Commandant deem reasonable and practicable.
[CGFR 68-60, 33 FR 10057, July 12, 1968, as amended by CGD 80-120, 47 FR
5723, Feb. 8, 1982]
Subpart 42.11_Applications for Load Line Assignments, Surveys, and
Certificates
Sec. 42.11-1 General.
(a) As described in this subchapter under Sec. Sec. 42.07-35,
42.07-40, 42.09-15, and 42.09-20, the American Bureau of Shipping or
other recognized classification societies approved as load line
assigning and issuing authorities perform the duties connected with
making load line assignments to vessels.
(b) The Commandant is responsible for the administration of the load
line acts, the 1966 Convention, other treaties regarding load lines, and
the implementing regulations in this subchapter which include prescribed
form and content of applicable load line certificates.
(c) Except in special instances for Coast Guard vessels, the
Commandant does not perform the duties of a load line assigning
authority.
[CGFR 68-60, 33 FR 10057, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969; CGD 80-120, 47 FR 5723, Feb. 8, 1982]
Sec. 42.11-5 Applications for load line assignments, surveys, and
certificates for U.S.-flag vessels.
(a) Normally, the owner, master, or agent of a vessel shall apply in
writing, on a timely basis, to the American Bureau of Shipping for the
assignment, survey, and certification of load lines. When nonconcurrent,
a separate application shall be made for each function desired and
submitted on a timely basis. The mailing address of the home office of
American Bureau of Shipping is ABS Plaza, 16855 Northchase Drive,
Houston, TX 77060.
(b) After the Commandant has approved a recognized classification
society as a load line assigning and issuing authority for a vessel, as
described in a written request of the shipowner, the owner shall apply
in writing, on a timely basis, direct to the approved assigning and
issuing authority for the assignment, survey, and certification of load
lines. When nonconcurrent, a separate application shall be made to such
authority for each function desired, and submitted on a timely basis.
[CGFR 68-60, 33 FR 10057, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969; CGD 96-041, 61 FR 50727, Sept. 27, 1996; USCG-
2000-7790, 65 FR 58459, Sept. 29, 2000]
Sec. 42.11-10 Applications for load line assignments and certificates
for vessels other than U.S.-flag vessels.
(a) The application for the assignment of load lines and certificate
for a
[[Page 26]]
foreign vessel belonging to (or which will belong to) either a country
ratifying or acceding to the International Convention on Load Lines,
1966, or to a country with which the United States of America has a
reciprocal load line agreement in effect shall be made by the Government
whose flag the vessel flies, or will fly. The application may be made
direct to the American Bureau of Shipping, or after receiving the
Commandant's approval, to a recognized classification society which that
country has requested as an assigning and issuing authority. When the
load line assignment and certificate are authorized pursuant to the
requirements in this part, the certificate must contain a statement that
it has been issued at the request of a specific Government, which shall
be named therein.
(1) When the load line assignment is performed under the applicable
regulations in this subchapter, the assigning and issuing authority
shall transmit to the requesting Government at the earliest practicable
date, one copy of each certificate issued, the load line survey report
used for computing the freeboard, and the freeboard computations. For
information, the assigning and issuing authority shall also notify the
Commandant of the names of the vessel and the Government involved and
the date and place where the work was done.
(b) For a foreign vessel of a country not included in paragraph (a)
of this section, the owner, master, or agent normally shall apply in
writing to the American Bureau of Shipping, or to any other recognized
assigning and issuing authority after it has been approved by the
Commandant, for the assignment, survey, and certification of load lines,
or for reissue of a load line certificate, as may be necessary for the
vessel to clear ports of the United States, the Commonwealth of Puerto
Rico, the Territory of Guam, or other U.S. possessions. Normally the
same requirements, conditions, procedures, distribution of applicable
certificates, etc., shall be applied to such foreign vessels which are
applied to similar U.S.-flag vessels of 150 gross tons or over.
[CGFR 68-60, 33 FR 10058, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.11-15 Application for timber load lines.
(a) The owner, master, or agent of a vessel having load lines
assigned under this subchapter may apply to the assigning and issuing
authority for timber load lines when making his application for a load
line certificate. After the vessel has been found in compliance with the
applicable requirements in this subchapter, it may be marked with timber
load lines, which will also be certified to in the load line
certificate.
[CGFR 68-60, 33 FR 10058, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.11-20 Application for annual survey.
(a) The owner, master, or agent of a vessel holding a load line
certificate shall apply to the assigning and issuing authority who
issued the certificate for the annual survey required by Sec. 42.09-40
or the International Convention on Load Lines, 1966.
[CGFR 68-60, 33 FR 10058, July 12, 1968]
Subpart 42.13_General Rules for Determining Load Lines
Sec. 42.13-1 Assumptions.
(a) The regulations in this part are based on the assumption that
the nature and stowage of the cargo, ballast, etc., are such as will
secure sufficient stability of the vessel and avoid excessive structural
stress.
(b) The regulations in this part are also based on the assumption
that, where there are other international requirements relating to
stability or subdivision applicable to vessels, these requirements have
been met.
[CGFR 68-60, 33 FR 10058, July 12, 1968]
Sec. 42.13-5 Strength of vessel.
(a) The assigning and issuing authority shall satisfy itself that
the general
[[Page 27]]
structural strength of the vessel is sufficient for the draft
corresponding to the freeboard assigned, and when requested shall
furnish pertinent strength information to the Commandant.
(b) Vessels built and maintained in conformity with the requirements
of a classification society recognized by the Commandant are considered
to possess adequate strength for the purpose of the applicable
requirements in this subchapter unless deemed otherwise by the
Commandant.
[CGFR 68-60, 33 FR 10058, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.13-10 Freeboards assigned vessels.
(a) Vessels with mechanical means of propulsion, or lighters,
barges, or other vessels without independent means of propulsion, shall
be assigned freeboards in accordance with the provisions of Sec. Sec.
42.13-1 to 42.20-75, inclusive.
(b) Vessels carrying timber deck cargoes may be assigned, in
addition to the freeboards required by paragraph (a) of this section,
timber freeboards in accordance with the provisions of Sec. Sec. 42.25-
1 to 42.25-20, inclusive.
(c) Vessels designed to carry sail, whether as the sole means of
propulsion or as a supplementary means, and tugs, shall be assigned
freeboards in accordance with the provisions of Sec. Sec. 42.13-1 to
42.20-75, inclusive, and such additional freeboards as determined
necessary by the Commandant under the procedure of paragraph (f) of this
section.
(d) Vessels of wood or of composite construction, or of other
materials the use of which the Commandant has approved, or vessels whose
constructional features are such as to render the application of the
provisions of Sec. Sec. 42.13-1 to 42.25-20 unreasonable or
impracticable, shall be assigned freeboards as determined necessary by
the Commandant under the procedure of paragraph (f) of this section.
(e) The requirements in Sec. Sec. 42.15-1 to 42.15-80, inclusive,
shall apply to every vessel to which a minimum freeboard is assigned.
Relaxations from these requirements may be granted to a vessel to which
a greater than minimum freeboard is assigned provided the safety
conditions of the vessel are determined to be satisfactory under
paragraph (f) of this section.
(f) In each case specified by paragraphs (c) to (e) inclusive of
this section, the assigning authority shall report to the Commandant the
specific matters in which the vessel is deficient or requires special
freeboard consideration due to design, arrangement, construction
materials, propulsive method, or relaxation of requirements in this
part. The report shall also furnish background data and recommendations
of the assigning authority (including freeboard additions), as will
enable the Commandant to reach a decision.
[CGFR 68-60, 33 FR 10058, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969]
Sec. 42.13-15 Definitions of terms.
(a) Length. The length (L) shall be taken as 96 percent of the total
length on a waterline at 85 percent of the least molded depth measured
from the top of the keel, or as the length from the foreside of the stem
to the axis of the rudder stock on that waterline, if that be greater.
In vessels designed with a rake of keel the waterline on which this
length is measured shall be parallel to the designed waterline.
(b) Perpendiculars. The forward and after perpendiculars shall be
taken at the forward and after ends of the length (L). The forward
perpendicular shall coincide with the foreside of the stem on the
waterline on which the length is measured.
(c) Amidships. Amidships is at the middle of the length (L).
(d) Breadth. Unless expressly provided otherwise, the breadth (B) is
the maximum breadth of the vessel, measured amidships to the molded line
of the frame in a vessel with a metal shell and to the outer surface of
the hull in a vessel with a shell of any other material.
(e) Molded depth. (1) The molded depth is the vertical distance
measured from the top of the keel to the top of the freeboard deck beam
at side. In wood and composite vessels the distance is measured from the
lower edge of the keel rabbet. Where the form at the lower part of the
midship section is of a hollow character, or where thick
[[Page 28]]
garboards are fitted, the distance is measured from the point where the
line of the flat of the bottom continued inwards cuts the side of the
keel.
(2) In vessels having rounded gunwales, the molded depth shall be
measured to the point of intersection of the molded lines of the deck
and sides, the lines extending as though the gunwale were of angular
design.
(3) Where the freeboard deck is stepped and the raised part of the
deck extends over the point at which the molded depth is to be
determined, the molded depth shall be measured to a line of reference
extending from the lower part of the deck along a line parallel with the
raised part.
(f) Depth for freeboard (D). (1) The depth for freeboard (D) is the
molded depth amidships, plus the thickness of the freeboard deck
stringer plate, where fitted, plus
T(L-S)/L
if the exposed freeboard deck is sheathed;
where:
T is the mean thickness of the exposed sheathing clear of deck openings;
and
S is the total length of superstructures as defined in paragraph (j)(4)
of this section.
(2) The depth for freeboard (D) in a vessel having a rounded gunwale
with a radius greater than 4 percent of the breadth (B) or having
topsides of unusual form is the depth for freeboard of a vessel having a
midship section with vertical topsides and with the same round of beam
and area of topside section equal to that provided by the actual midship
section.
(g) Block coefficient. The block coefficient (Cb) is given by
Cb=[Delta]/L.B.d1
where [Delta] is the volume of the molded displacement of the vessel,
excluding bossing, in a vessel with a metal shell, and is the volume of
displacement to the outer surface of the hull in a vessel with a shell
of any other material, both taken at a molded draft of d1;
and, d1 is 85 percent of the least molded depth.
(h) Freeboard. The freeboard assigned is the distance measured
vertically downward amidships from the upper edge of the deck line to
the upper edge of the related load line.
(i) Freeboard deck. (1) The freeboard deck is normally the uppermost
complete deck exposed to weather and sea, which has permanent means of
closing all openings in the weather part thereof, and below which all
openings in the sides of the vessel are fitted with permanent means of
watertight closing. In a vessel having a discontinuance freeboard deck,
the lowest line of the exposed deck and the continuation of that line
parallel to the upper part of the deck is taken as the freeboard deck.
At the option of the owner and subject to the approval of the assigning
authority a lower deck may be designated as the freeboard deck, provided
it is a complete and permanent deck continuous in a fore and aft
direction at least between the machinery space and peak bulkheads and
continuous athwartships. When this lower deck is stepped the lowest line
of the deck and the continuation of that line parallel to the upper part
of the deck is taken as the freeboard deck.
(2) When a lower deck is designated as the freeboard deck, that part
of the hull which extends above the freeboard deck is treated as a
superstructure so far as concerns the application of the conditions of
assignment and the calculation of freeboard. It is from this deck that
the freeboard is calculated.
(j) Superstructure. (1) A superstructure is a decked structure on
the freeboard deck, extending from side to side of the vessel or with
the side plating not being inboard of the shell plating more than 4
percent to the breadth. (B). A raised quarter deck is regarded as a
superstructure.
(2) An enclosed superstructure is a superstructure with:
(i) Enclosing bulkheads of efficient construction;
(ii) Access openings, if any in these bulkheads fitted with doors
complying with the requirements of Sec. 42.15-10; and,
(iii) All other openings in sides or ends of the superstructure
fitted with efficient weathertight means of closing.
Note: A bridge or poop shall not be regarded as enclosed unless
access is provided for the crew to reach machinery and other working
spaces inside the superstructures by alternative means, which are
available at all times when bulkhead openings are closed.
[[Page 29]]
(3) The height of a superstructure is the least vertical height
measured at side from the top of the superstructure deck beams to the
top of the freeboard deck beams.
(4) The length of a superstructure (S) is the mean length of the
part of the superstructure which lies within the length (L).
(k) Flush deck vessel. A flush deck vessel is one which has no
superstructure on the freeboard deck.
(l) Weathertight. Weathertight means that in any sea conditions
water will not penetrate into the vessel.
[CGFR 68-60, 33 FR 10058, July 12, 1968, as amended by CGFR 68-126, 34
FR 9013, June 5, 1969; 43 FR 31928, July 24, 1978]
Sec. 42.13-20 Deck line.
(a) The deck line is a horizontal line 12 inches in length and 1
inch in breadth. It shall be marked amidships on each side of the
vessel, and its upper edge shall normally pass through the point where
the continuation outwards of the upper surface of the freeboard deck
intersects the outer surface of the shell (as illustrated in Figure
42.13-20(a)), provided that the deck line may be placed with reference
to another fixed point on the vessel on condition that the freeboard is
correspondingly corrected. The location of the reference point and the
identification of the freeboard deck shall in all cases be indicated on
the International Load Line Certificate (1966), and, as applicable, on
all other load line certificates issued pursuant to this part 42.
[GRAPHIC] [TIFF OMITTED] TC01FE91.000
Figure 42.13-20(a)--Deck Line
[CGFR 68-60, 33 FR 10059, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.13-25 Load line mark.
(a) The load line mark shall consist of a ring 12 inches in outside
diameter and 1 inch wide which is intersected by a horizontal line 18
inches in length and 1 inch in breadth, the upper edge of which passes
through the center of the ring. The center of the ring shall be placed
amidships and at a distance equal to the assigned summer freeboard
measured vertically below the upper edge of the deck line (as
illustrated in Figure 42.13-25(a)).
[GRAPHIC] [TIFF OMITTED] TC01FE91.001
Figure 42.13-25(a)--Load line mark and lines to be used with this mark
[CGFR 68-60, 33 FR 10059, July 12, 1968]
Sec. 42.13-30 Lines to be used with the load line mark.
(a) The lines which indicate the load line assigned in accordance
with the regulations in this part shall be horizontal lines 9 inches in
length and 1 inch in breadth which extend forward of, unless expressly
provided otherwise, and at right angles to, a vertical line 1 inch in
breadth marked at a distance 21 inches forward of the center of the ring
(as illustrated in Figure 42.13-25(a)).
(b) The following load lines shall be used:
(1) The summer load line indicated by the upper edge of the line
which passes through the center of the ring and also by a line marked S.
(2) The winter load line indicated by the upper edge of a line
marked W.
(3) The winter North Atlantic load line indicated by the upper edge
of a line marked WNA.
(4) The tropical load line indicated by the upper edge of a line
marked T.
(5) The fresh water load line in summer indicated by the upper edge
of a line marked F. The fresh water load line in summer is marked abaft
the vertical line. The difference between the fresh water load line in
summer
[[Page 30]]
and the summer load line is the allowance to be made for loading in
fresh water at the other load lines.
(6) The tropical fresh water load line indicated by the upper edge
of a line marked TF, and marked abaft the vertical line.
(c) If timber freeboards are assigned, the timber load lines shall
be marked in addition to ordinary load lines. These lines shall be
horizontal lines 9 inches in length and 1 inch in breadth which extend
abaft unless expressly provided otherwise, and are at right angles to, a
vertical line 1 inch in breadth marked at a distance 21 inches abaft the
center of the ring (as illustrated in Figure 42.13-30(c)).
[GRAPHIC] [TIFF OMITTED] TC01FE91.002
Figure 42.13-30(c)--Timber load line mark and lines to be used with this
mark
(d) The following timber load lines shall be used:
(1) The summer timber load line indicated by the upper edge of a
line marked LS.
(2) The winter timber load line indicated by the upper edge of a
line marked LW.
(3) The winter North Atlantic timber load line indicated by the
upper edge of a line marked LWNA.
(4) The tropical timber load line indicated by the upper edge of a
line marked LT.
(5) The fresh water timber load line in summer indicated by the
upper edge of a line marked LF and marked forward of the vertical line.
Note: The difference between the fresh water timber load line in
summer and the summer timber load line is the allowance to be made for
loading in fresh water at the other timber load lines.
(6) The tropical fresh water timber load line indicated by the upper
edge of a line marked LTF and marked forward of the vertical line.
(e) Where the characteristics of a vessel, or the nature of the
vessel's service or navigational limits make any of the seasonal lines
inapplicable, these lines may be omitted.
(f) Where a vessel is assigned a greater than minimum freeboard so
that the load line is marked at a position corresponding to, or lower
than, the lowest seasonal load line assigned at minimum freeboard in
accordance with the present Convention, only the fresh water load line
need be marked.
(g) On sailing vessels only the fresh water load line and the winter
North Atlantic load line need be marked (as illustrated in Figure 42.13-
30(g)).
[GRAPHIC] [TIFF OMITTED] TC01FE91.003
Figure 42.13-30(g)--Load line mark on sailing vessel and lines to be
used with this mark
(h) Where a winter North Atlantic load line is identical with the
winter load line corresponding to the same vertical line, this load line
shall be marked W.
(i) Additional load lines required by other international
conventions in force may be marked at right angles to and abaft the
vertical line specified in paragraph (a) of this section.
[CGFR 68-60, 33 FR 10059, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.13-35 Mark of assigning authority.
(a) The mark of the assigning authority by whom the load lines are
assigned may be indicated alongside the load line ring above the
horizontal line which passes through the center of the
[[Page 31]]
ring, or above and below it. This mark shall consist of not more than
four initials to identify the assigning authority's name, each measuring
approximately 4\1/2\ inches in height and 3 inches in width.
[CGFR 68-60, 33 FR 10060, July 12, 1968]
Sec. 42.13-40 Details of marking.
(a) The ring, lines and letters shall be painted in white or yellow
on a dark ground or in black on a light ground. They shall also be
permanently marked on the sides of the vessels to the satisfaction of
the assigning authority. The marks shall be plainly visible and, if
necessary, special arrangements shall be made for this purpose.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.13-45 Verification of marks.
(a) The International Load Line Certificate (1966) shall not be
delivered to the vessel until Sec. 42.07-5 has been fully complied with
under the authority and provisions of subparts 42.07 and 42.09 of this
part.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Subpart 42.15_Conditions of Assignment of Freeboard
Sec. 42.15-1 Information to be supplied to the master.
(a) The master of every new vessel shall be supplied with sufficient
information in a form approved by the assigning and issuing authority,
to enable him to arrange for the loading and ballasting of his vessel in
such a way as to avoid the creation of any unacceptable stresses in the
vessel's structure: Provided, That this requirement need not apply to
any particular length, design or class of vessel where the Commandant
considers it to be unnecessary and so notifies the assigning and issuing
authority.
(b) The master of every new vessel, which is not already provided
with stability information under an international convention for the
safety of life at sea in force, shall be supplied with sufficient
information in a form approved by the Commandant, to give him guidance
as to the stability of the vessel under varying conditions of service,
and a copy shall be furnished to the Commandant.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-5 Superstructure end bulkheads.
(a) Bulkheads at exposed ends of enclosed superstructures shall be
of efficient construction and shall be to the satisfaction of the
assigning authority.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-10 Doors.
(a) All access openings in bulkheads at ends of enclosed
superstructures shall be fitted with doors of steel or other equivalent
material, permanently and strongly attached to the bulkhead, and framed,
stiffened and fitted so that the whole structure is of equivalent
strength to the unpierced bulkhead and weathertight when closed. The
means for securing these doors weathertight shall consist of gaskets and
clamping devices or other equivalent means and shall be permanently
attached to the bulkhead or to the doors themselves, and the doors shall
be so arranged that they can be operated from both sides of the
bulkhead.
(b) Except as otherwise provided in these regulations, the height of
the sills of access openings in bulkheads at ends of enclosed
superstructures shall be at least 15 inches above the deck.
[CGFR 68-60, 33 FR 10060, July 12, 1968]
Sec. 42.15-15 Positions of hatchways, doorways and ventilators.
(a) For the purpose of this part two positions of hatchways,
doorways and ventilators are defined as follows:
(1) Position 1: Upon exposed freeboard and raised quarter decks, and
upon exposed superstructure decks situated forward of a point located a
quarter of the vessel's length from the forward perpendicular.
[[Page 32]]
(2) Position 2: Upon exposed superstructure decks situated abaft a
quarter of the vessel's length from the forward perpendicular.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-20 Cargo and other hatchways.
(a) The construction and the means for securing the weathertightness
of cargo and other hatchways in positions 1 and 2 shall be at least
equivalent to the requirements of Sec. Sec. 42.15-25 and 42.15-30.
(b) Coamings and hatchway covers to exposed hatchways on decks above
the superstructure deck shall comply with the requirements of the
assigning authority.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-25 Hatchways closed by portable covers and secured weathertight
by tarpaulins and battening devices.
(a) Hatchway coamings. (1) The coamings of hatchways closed by
portable covers secured weathertight by tarpaulins and battening devices
shall be of substantial construction, and their height above the deck
shall be at least as follows:
(i) 23\1/2\ inches if in position 1.
(ii) 17\1/2\ inches if in position 2.
(b) Hatchway covers. (1) The width of each bearing surface for
hatchway covers shall be at least 2\1/2\ inches.
(2) Where covers are made of wood, the finished thickness shall be
at least 2\3/8\ inches in association with a span of not more than 4.9
feet.
(3) Where covers are made of mild steel, the strength shall be
calculated with assumed loads not less than 358 pounds per square foot
on hatchways in position 1, and not less than 266 pounds per square foot
on hatchways in position 2, and the product of the maximum stress thus
calculated and the factor 4.25 shall not exceed the minimum ultimate
strength of the material. They shall be so designed as to limit the
deflection to not more than 0.0028 times the span under these loads.
(4) The assumed loads on hatchways in position 1 may be reduced to
205 pounds per square foot for vessels of 79 feet in length and shall be
not less than 358 pounds per square foot for vessels of 328 feet in
length. The corresponding loads on hatchways in position 2 may be
reduced to 154 pounds per square foot and 266 pounds per square foot
respectively. In all cases values at intermediate lengths shall be
obtained by linear interpolation.
(c) Portable beams. (1) Where portable beams for supporting hatchway
covers are made of mild steel the strength shall be calculated with
assumed loads not less than 358 pounds per square foot on hatchways in
position 1 and not less than 266 pounds per square foot on hatchways in
position 2 and the product of the maximum stress thus calculated and the
factor 5 shall not exceed the minimum ultimate strength of the material.
They shall be so designed as to limit the deflection to not more than
0.0022 times the span under these loads. For vessels of not more than
328 feet in length the requirements of paragraph (b)(4) of this section
are applicable.
(d) Pontoon covers. (1) Where pontoon covers used in place of
portable beams and covers are made of mild steel the strength shall be
calculated with the assumed loads given in paragraph (b)(3) of this
section, and the product of the maximum stress thus calculated and the
factor 5 shall not exceed the minimum ultimate strength of the material.
They shall be so designed as to limit the deflection to not more than
0.0022 times the span. Mild steel plating forming the tops of covers
shall be not less in thickness than 1 percent of the spacing of
stiffeners or 0.24 inches if that be greater. For vessels of not more
than 328 feet in length the requirements of paragraph (b)(4) of this
section are applicable.
(2) The strength and stiffness of covers made of materials other
than mild steel shall be equivalent to those of mild steel to the
satisfaction of the assigning authority.
(e) Carriers or sockets. (1) Carriers or sockets for portable beams
shall be of substantial construction, and shall provide means for the
efficient fitting and securing of the beams. Where rolling
[[Page 33]]
types of beams are use, the arrangements shall ensure that the beams
remain properly in position when the hatchway is closed.
(f) Cleats. (1) Cleats shall be set to fit the taper of the wedges.
They shall be at least 2\1/2\ inches wide and spaced not more than 23\1/
2\ inches center to center; the cleats along each side or end shall be
not more than 6 inches from the hatch corners.
(g) Battens and wedges. (1) Battens and wedges shall be efficient
and in good condition. Wedges shall be of tough wood or other equivalent
material. They shall have a taper of not more than 1 in 6 and shall be
not less than \1/2\-inch thick at the toes.
(h) Tarpaulins. (1) At least two layers of tarpaulin in good
condition shall be provided for each hatchway in positions 1 and 2.
(2) The tarpaulins shall be waterproof and of ample strength. They
shall be of a material of at least a standard weight and quality as
approved by the assigning and issuing authority.
(i) Security of hatchway covers. (1) For all hatchways in position 1
or 2, steel bars or other equivalent means shall be provided in order
efficiently and independently to secure each section of hatchway covers
after the tarpaulins are battened down. Hatchway covers of more than 4.9
feet in length shall be secured by at least two such securing
appliances.
[CGFR 68-60, 33 FR 10060, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-30 Hatchways closed by weathertight covers of steel or other
equivalent material fitted with gaskets and clamping devices.
(a) Hatchway coamings. At positions 1 and 2 the height above the
deck of hatchway coamings fitted with weathertight hatch covers of steel
or other equivalent material fitted with gaskets and clamping devices
shall be as specified in Sec. 42.15-25(a)(1). The height of these
coamings may be reduced, or the coamings omitted entirely, on condition
that the assigning authority is satisfied that the safety of the vessel
is not thereby impaired in any sea conditions. Where coamings are
provided they shall be of substantial construction.
(b) Weathertight covers. (1) Where weathertight covers are of mild
steel the strength shall be calculated with assumed loads not less than
358 pounds per square foot on hatchways in position 1, and not less than
255 pounds per square foot on hatchways in position 2, and the product
of the maximum stress thus calculated and the factor of 4.25 shall not
exceed the minimum ultimate strength of the material. They shall be so
designed as to limit the deflection to not more than 0.0028 times the
span under these loads. Mild steel plating forming the tops of covers
shall be not less in thickness than one percent of the spacing of
stiffeners or 0.24 inches if that be greater. The provisions of Sec.
42.15-25(b)(4) are applicable for vessels of not more than 328 feet in
length.
(2) The strength and stiffness of covers made of materials other
than mild steel shall be equivalent to those of mild steel to the
satisfaction of the assigning authority.
(c) Means for securing weathertightness. (1) The means for securing
and maintaining weathertightness shall be to the satisfaction of the
assigning authority.
(2) The arrangements shall ensure that the tightness can be
maintained in any sea conditions. For this purpose tests for tightness
shall be required at the initial surveys, and may be required at
periodical surveys and at annual surveys or at more frequent intervals.
[CGFR 68-60, 33 FR 10061, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-35 Machinery space openings.
(a) Machinery space openings in position 1 or 2 shall be properly
framed and efficiently enclosed by steel casings of ample strength, and
where the casings are not protected by other structures their strength
shall be specifically considered. Access openings in such casings shall
be fitted with doors complying with the requirements of Sec. 42.15-
10(a), the sills of which shall be at least 23\1/2\ inches above the
deck if in position 1, and at least 15 inches above the deck if in
position 2. Other openings in such
[[Page 34]]
casings shall be fitted with equivalent covers, permanently attached in
their proper positions.
(b) Coamings of any fiddley, funnel, or machinery space ventilators
in an exposed position on the freeboard or superstructure deck shall be
as high above the deck as is reasonable and practicable. Fiddley
openings shall be fitted with strong covers of steel or other equivalent
material permanently attached in their proper positions and capable of
being secured weathertight.
[CGFR 68-60, 33 FR 10061, July 12, 1968]
Sec. 42.15-40 Miscellaneous openings in freeboard and superstructure
decks.
(a) Manholes and flush scuttles in position 1 or 2 or within
superstructures other than enclosed superstructures shall be closed by
substantial covers capable of being made watertight. Unless secured by
closely spaced bolts, the covers shall be permanently attached.
(b) Openings in freeboard decks other than hatchways, machinery
space openings, manholes, and flush scuttles shall be protected by an
enclosed superstructure, or by a deckhouse or companionway of equivalent
strength and weathertightness. Any such opening in an exposed
superstructure deck or in the top of a deckhouse on the freeboard deck
which gives access to a space below the freeboard deck or a space within
an enclosed superstructure shall be protected by an efficient deckhouse
or companionway. Doorways in such deckhouses or companionways shall be
fitted with doors complying with the requirements of Sec. 42.15-10(a).
(c) In position 1 the height above the deck of sills to the doorways
in companionways shall be at least 23\1/2\ inches. In position 2 they
shall be at least 15 inches.
[CGFR 68-60, 33 FR 10061, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-45 Ventilators.
(a) Ventilators in position 1 or 2 to spaces below the freeboard
decks or decks of enclosed superstructures shall have coamings of steel
or other equivalent material, substantially constructed and efficiently
connected to the deck. Where the coaming of any ventilator exceeds 35\1/
2\ inches in height it shall be specially supported.
(b) Ventilators passing through superstructures other than enclosed
superstructures shall have substantially constructed coamings of steel
or other equivalent material at the freeboard deck.
(c) Ventilators in position 1 the coamings of which extend to more
than 14.8 feet above the deck, and in position 2 the coamings of which
extend to more than 7.5 feet above the deck, need not be fitted with
closing arrangements unless specifically required by the assigning
authority.
(d) Except as provided in paragraph (c) of this section ventilator
openings shall be provided with efficient weathertight closing
appliances. In vessels of not more than 328 feet in length the closing
appliances shall be permanently attached; where not so provided in other
vessels, they shall be conveniently stowed near the ventilators to which
they are to be fitted. Ventilators in position 1 shall have coamings of
a height of at least 35\1/2\ inches above the deck; in position 2 the
coamings shall be of a height at least 30 inches above the deck.
(e) In exposed positions, the height of coamings may be required to
be increased to the satisfaction of the assigning authority.
[CGFR 68-60, 33 FR 10061, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-50 Air pipes.
(a) Where air pipes to ballast and other tanks extend above the
freeboard or superstructure decks, the exposed parts of the pipes shall
be of substantial construction; the height from the deck to the point
where water may have access below shall be at least 30 inches on the
freeboard deck and 17\1/2\ inches on the superstructure deck. Where
these heights may interfere with the working of the vessel, a lower
height may be approved, provided the assigning authority is satisfied
that the closing arrangements and other circumstances justify a lower
height.
[[Page 35]]
Satisfactory means permanently attached, shall be provided for closing
the openings of the air pipes.
[CGFR 68-60, 33 FR 10062, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-55 Cargo ports and other similar openings.
(a) Cargo ports and other similar openings in the sides of vessels
below the freeboard deck shall be fitted with doors so designed as to
ensure watertightness and structural integrity commensurate with the
surrounding shell plating, to the satisfaction of the assigning
authority. The arrangements shall be subject to tightness tests at the
initial survey and at such subsequent surveys or more frequent intervals
as deemed necessary. The number of such openings shall be the minimum
compatible with the design and proper working of the vessel.
(b) Unless permitted by the Commandant the lower edge of such
openings shall not be below a line drawn parallel to the freeboard deck
at side, which has at its lowest point the upper edge of the uppermost
load line.
[CGFR 68-60, 33 FR 10062, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-60 Scuppers, inlets, and discharges.
(a) Discharges led through the shell either from spaces below the
freeboard deck or from within superstructures and deckhouses on the
freeboard deck fitted with doors complying with the requirements of
Sec. 42.15-10 shall be fitted with efficient and accessible means for
preventing water from passing inboard. Normally, each separate discharge
shall have one automatic nonreturn valve with a positive means of
closing it from a position above the freeboard deck. Where, however, the
vertical distance from the summer load waterline to the inboard end of
the discharge pipe exceeds 0.01L, the discharge may have two automatic
nonreturn valves without positive means of closing: Provided, That the
inboard valve is always accessible for examination under service
conditions; where that vertical distance exceeds 0.02L a single
automatic nonreturn valve without positive means of closing may be
accepted subject to the approval of the assigning authority. The means
for operating the positive action valve shall be readily accessible and
provided with an indicator showing whether the valve is open or closed.
(b) In manned machinery spaces main and auxiliary sea inlets and
discharges in connection with the operation of machinery may be
controlled locally. The controls shall be readily accessible and shall
be provided with indicators showing whether the valves are open or
closed.
(c) Scuppers and discharge pipes originating at any level and
penetrating the shell either more than 17\1/2\ inches below the
freeboard deck or less than 23\1/2\ inches above the summer load
waterline shall be provided with a nonreturn valve at the shell. This
valve, unless required by paragraph (a) of this section, may be omitted
if the piping is of thickness as specified in part 56 in subchapter F
(Marine Engineering) of this chapter.
(d) Scuppers leading from superstructures or deckhouses not fitted
with doors complying with the requirements of Sec. 42.15-10 shall be
led overboard.
(e) All valves and shell fittings required by this section shall be
of steel, bronze, or other approved ductile material. Valves of ordinary
cast iron or similar material are not acceptable. All pipes to which
this section refers shall be of steel or other equivalent material to
the satisfaction of the assigning authority.
[CGFR 68-60, 33 FR 10062, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-65 Side scuttles.
(a) Side scuttles to spaces below the freeboard deck or to spaces
within enclosed superstructures shall be fitted with efficient hinged
inside deadlights arranged so that they can be effectively closed and
secured watertight.
(b) No side scuttle shall be fitted in a position so that its sill
is below a line drawn parallel to the freeboard deck at side and having
its lowest point 2.5 percent of the breadth (B) above the load
waterline, or 19\1/2\ inches, which ever is the greater distance.
[[Page 36]]
(c) The side scuttles, together with their glasses, if fitted, and
deadlights, shall be of substantial and approved construction.
[CGFR 68-60, 33 FR 10062, July 12, 1968]
Sec. 42.15-70 Freeing ports.
(a) Where bulwarks on the weather portions of freeboard or
superstructure decks form wells, ample provision shall be made for
rapidly freeing the deck of water and for draining them. Except as
provided in paragraphs (b) and (c) of this section, the minimum freeing
port area (A) on each side of the vessel for each well on the freeboard
deck shall be that given by the following formulae in cases where the
sheer in way of the well is standard or greater than standard. The
minimum area for each well on superstructure decks shall be one-half of
the area given by the formulae.
(1) Where the length of bulwark (l) in the well is 66 feet or less A
= 7.6 + 0.115l (square feet)
(2) Where l exceeds 66 feet A = 0.23l (square feet)
(3) l need in no case be taken as greater than 0.7L.
(4) If the bulwark is more than 3.9 feet in average height the
required area shall be increased by 0.04 square feet per foot of length
of well for each foot difference in height. If the bulwark is less than
3 feet in average height, the required area may be decreased by 0.04
square feet per foot of length for each foot difference in height.
(b) In vessels with no sheer the area calculated according to
paragraph (a) of this section shall be increased by 50 percent. Where
the sheer is less than the standard the percentage shall be obtained by
linear interpolation.
(c) Where a vessel is fitted with a trunk which does not comply with
the requirements of Sec. 42.20-55(a)(5) or where continuous or
substantially continuous hatchway side coamings are fitted between
detached superstructures the minimum area of the freeing port openings
shall be calculated from table 42.15-70(c):
Table 42.15-70(c)
------------------------------------------------------------------------
Area of freeing ports in
Breadth of hatchway or trunk in relation relation to the total area
to the breadth of vessel of the bulwarks
------------------------------------------------------------------------
40 percent or less........................ 20 percent.
75 percent or more........................ 10 percent.
------------------------------------------------------------------------
Note: The area of freeing ports at intermediate breadths shall be
obtained by linear interpolation.
(d) In vessels having superstructures which are open at either or
both ends, adequate provision for freeing the space within such
superstructures shall be provided to the satisfaction of the assigning
authority.
(e) The lower edges of the freeing ports shall be as near the deck
as practicable. Two-thirds of the freeing port area required shall be
provided in the half of the well nearest the lowest point of the sheer
curve.
(f) All such openings in the bulwarks shall be protected by rails or
bars spaced approximately 9 inches apart. If shutters are fitted to
freeing ports, ample clearance shall be provided to prevent jamming.
Hinges shall have pins or bearings of noncorrodible material. If
shutters are fitted with securing appliances, these appliances shall be
of approved construction.
[CGFR 68-60, 33 FR 10062, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969]
Sec. 42.15-75 Protection of the crew.
(a) The strength of the deckhouses used for the accommodation of the
crew shall be to the satisfaction of the assigning authority.
(b) Efficient guard rails or bulwarks must be fitted on all exposed
parts of the freeboard and superstructure decks as follows:
(1) The height of the bulwarks or guard rails must be at least 39\1/
2\ inches from the deck, provided that where this height would interfere
with the normal operation of the vessel, a lesser height may be approved
if the Commandant and the assigning authority are satisfied that
adequate protection is provided.
(2) On each vessel that is initially surveyed for load line
assignment after January 1, 1976, and that is exclusively
[[Page 37]]
engaged in towing operations, the minimum bulwark or rail height on the
freeboard deck may be reduced to 30 inches provided the assigning
authority is satisfied that adequate grabrails are provided around the
periphery of the deckhouse.
(3) Portable rails may be used when operating conditions warrant
their use.
(c) The opening below the lowest course of the guard rails shall not
exceed 9 inches. The other courses shall be not more than 15 inches
apart. In the case of vessels with rounded gunwales the guard rail
supports shall be placed on the flat of the deck.
(d) Satisfactory means (in the form of guard rails, life lines,
gangways or underdeck passages, etc.) shall be provided for the
protection of the crew in getting to and from their quarters, the
machinery space and all other parts used in the necessary work of the
vessel.
(e) Deck cargo carried on any vessel shall be so stowed that any
opening which is in way of the cargo and which gives access to and from
the crew's quarters, the machinery space and all other parts used in the
necessary work of the vessel, can be properly closed and secured against
the admission of water. Effective protection for the crew in the form of
guard rails or life lines shall be provided above the deck cargo if
there is no convenient passage on or below the deck of the vessel.
[CGFR 68-60, 33 FR 10062, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969; CGD 74-164, 41 FR 1470, Jan. 8, 1976]
Sec. 42.15-80 Special conditions of assignment for Type ``A'' vessels.
(a) Machinery casings. Machinery casings on Type ``A'' vessels as
defined in Sec. 42.09-5(b) must be protected by an enclosed poop or
bridge of at least standard height, or by a deckhouse of equal height
and equivalent strength, except that machinery casings may be exposed if
there are no openings giving direct access from the freeboard deck to
the machinery space. A door complying with the requirements of Sec.
42.15-10 is permitted in the machinery casing if it leads to a space or
passageway which is as strongly constructed as the casing and is
separated from the stairway to the engine room by a second weathertight
door of steel or equivalent material.
(b) Gangway and access. (1) An efficiently constructed fore and aft
permanent gangway of sufficient strength shall be fitted on Type ``A''
vessels at the level of the superstructure deck between the poop and the
midship bridge or deckhouse where fitted, or equivalent means of access
shall be provided to carry out the purpose of the gangway, such as
passages below deck. Elsewhere, and on Type ``A'' vessels without a
midship bridge, arrangements to the satisfaction of the assigning
authority shall be provided to safeguard the crew in reaching all parts
used in the necessary work of the ship.
(2) Safe and satisfactory access from the gangway level shall be
available between separates crew accommodations and also between crew
accommodations and the machinery space.
(c) Hatchways. Exposed hatchways on the freeboard and forecastle
decks or on the tops of expansion trunks on Type ``A'' vessels shall be
provided with efficient watertight covers of steel or other equivalent
material.
(d) Freeing arrangements. (1) Type ``A'' vessels with bulwarks shall
have open rails fitted for at least half the length of the exposed parts
of the weather deck or other effective freeing arrangements. The upper
edge of the sheer strake shall be kept as low as practicable.
(2) Where superstructures are connected by trunks, open rails shall
be fitted for the whole length of the exposed parts of the freeboard
deck.
[CGFR 68-60, 33 FR 10063, July 12, 1968, as amended by CGFR 68-126, 34
FR 9014, June 5, 1969; CGD 79-153, 48 FR 38647, Aug. 25, 1983]
Subpart 42.20_Freeboards
Sec. 42.20-3 Freeboard assignment: Type ``A'' vessels.
(a) A Type ``A'' vessel is assigned a freeboard not less than that
based on table 42.20-15(a)(1) provided that the vessel meets the
flooding standard in Sec. 42.20-6.
(b) A vessel that meets the requirements of subpart D, F, or G of
part 172 of this chapter is considered by the Coast Guard as meeting the
flooding
[[Page 38]]
standard referenced in paragraph (a) of this section.
[CGD 79-153, 48 FR 38647, Aug. 25, 1983, as amended by CGD 79-023, 49 FR
26593, June 28, 1984]
Sec. 42.20-5 Freeboard assignment: Type ``B'' vessels.
(a) Each Type ``B'' vessel is assigned a freeboard from table 42.20-
15(b)(1) that is increased or decreased by the provisions of this
section.
(b) Each Type ``B'' vessel that has a hatchway in position 1, must
have the freeboard assigned in accordance with paragraph (a) of this
section increased by the amount given in table 42.20-5(b) unless the
hatch cover complies with:
(1) Section 42.15-25(d); or
(2) Section 42.15-30.
Table 42.20-5(b)--Freeboard Increase Over Tabular Freeboard for Type
``B'' Vessels With Hatch Covers Not Complying With Sec. 42.15-25(d) or
Sec. 42.15-30.
[Metric]
------------------------------------------------------------------------
Length of ship (meters) Freeboard increase \1\ (millimeters)
------------------------------------------------------------------------
\2\108 50
109 52
110 55
111 57
112 59
113 62
114 64
115 68
116 70
117 73
118 76
119 80
120 84
121 87
122 91
123 95
124 99
125 103
126 108
127 112
128 116
129 121
130 126
131 131
132 136
133 142
134 147
135 153
136 159
137 164
138 170
139 175
140 181
141 186
142 191
143 196
144 201
145 206
146 210
147 215
148 219
149 224
150 228
151 232
152 236
153 240
154 244
155 247
156 251
157 254
158 258
159 261
160 264
161 267
162 270
163 273
164 275
165 278
166 280
167 283
168 285
169 287
170 290
171 292
172 294
173 297
174 299
175 301
176 304
177 306
178 308
179 311
180 313
181 315
182 318
183 320
184 322
185 325
186 327
187 329
188 332
189 334
190 336
191 339
192 341
193 343
194 346
195 348
196 350
197 353
198 355
199 357
\3\200 358
------------------------------------------------------------------------
\1\ Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation.
\2\ 108 and below.
\3\ Ships above 200 meters in length are subject to individual
determination by the Commandant.
[English]
------------------------------------------------------------------------
Length of ship (feet) Freeboard increase \1\ (inches)
------------------------------------------------------------------------
\2\350 2.0
360 2.3
[[Page 39]]
370 2.6
380 2.9
390 3.3
400 3.7
410 4.2
420 4.7
430 5.2
440 5.8
450 6.4
460 7.0
470 7.6
480 8.2
490 8.7
500 9.2
510 9.6
520 10.0
530 10.4
540 10.7
550 11.0
560 11.4
570 11.8
580 12.1
590 12.5
600 12.8
610 13.1
620 13.4
630 13.6
640 13.9
650 14.1
\3\660 14.3
------------------------------------------------------------------------
\1\ Freeboards at intermediate lengths of ship be obtained by linear
interpolation.
\2\ 350 and below.
\3\ Ships above 660 feet in length are subject to individual
determination by the Commandant.
(c) Any Type ``B'' vessel that is greater than 100 meters (328 feet)
in length and any hopper dredge meeting the requirements in subpart C of
part 44 of this chapter may have a reduced freeboard from that assigned
under table 42.20-15(b)(1) in accordance with paragraph (d) or paragraph
(e) of this section if--
(1) The measures provided for the protection of the crew are
adequate;
(2) The freeing arrangements are adequate; and
(3) The hatchway covers in positions 1 and 2 comply with the
provisions of Sec. 42.15-30 and have adequate strength, special care
being given to their sealing and securing arrangements.
(d) The freeboards for a Type ``B'' vessel which comply with
paragraph (c) of this section may be reduced up to 60 percent of the
total difference between the freeboards in table 42.20-15(b)(1) and
table 42.20-15(a)(1) provided that the vessel meets the flooding
standard in Sec. 42.20-7.
(e) The freeboards for a Type ``B'' vessel which complies with
paragraph (c) of this section may be reduced up to the total difference
between the freeboard tables referenced in paragraph (d) of this section
provided that the vessel meets the flooding standard in Sec. 42.20-8
and the provisions of Sec. 42.15-80 (a), (b) and (d) as if it were a
Type ``A'' vessel.
[CGD 79-153, 48 FR 38647, Aug. 25, 1983, as amended by CGD 76-080, 54 FR
36976, Sept. 6, 1989]
Sec. 42.20-6 Flooding standard: Type ``A'' vessels.
(a) Design calculations must be submitted that demonstrate that the
vessel will remain afloat in the conditions of equilibrium specified in
Sec. 42.20-12 assuming the damage specified in Sec. 42.20-11 as
applied to the following flooding standards:
(1) If the vessel is over 150 meters (492 feet) in length it must be
able to withstand the flooding of any one compartment, except the
machinery space.
(2) If the vessel is over 225 meters (738 feet) in length, it must
be able to withstand the flooding of any one compartment, treating the
machinery space as a floodable compartment.
(b) When doing the calculations required in paragraph (a) of this
section, the following permeabilities must be assumed:
(1) 0.95 in all locations except the machinery space.
(2) 0.85 in the machinery space.
[CGD 79-153, 48 FR 38648, Aug. 25, 1983]
Sec. 42.20-7 Flooding standard: Type ``B'' vessel, 60 percent reduction.
(a) Design calculations must be submitted that demonstrate that the
vessel will remain afloat in the conditions of equilibrium specified in
Sec. 42.20-12 assuming the damage specified in Sec. 42.20-11 as
applied to the following flooding standards:
(1) If the vessel is 225 meters (738 feet) or less in length, it
must be able to withstand the flooding of any one compartment, except
the machinery space.
(2) If the vessel is over 225 meters (738 feet) in length, it must
be able to withstand the flooding of any one compartment, treating the
machinery space as a floodable compartment.
(b) When doing the calculations required in paragraph (a) of this
section,
[[Page 40]]
the following permeabilities must be assumed:
(1) 0.95 in all locations except the machinery space.
(2) 0.85 in the machinery space.
[CGD 79-153, 48 FR 38648, Aug. 25, 1983]
Sec. 42.20-8 Flooding standard: Type ``B'' vessel, 100 percent reduction.
(a) Design calculations must be submitted that demonstrate that the
vessel will remain afloat in the conditions of equilibrium specified in
Sec. 42.20-12 assuming the damage specified in Sec. 42.20-11 as
applied to the following flooding standards:
(1) If the vessel is 225 meters (738 feet) or less in length, it
must be able to withstand the flooding of any two adjacent fore and
after compartments excluding the machinery space;
(2) If the vessel is over 225 meters (738 feet) in length, the
flooding standard of paragraph (a)(1) of this section must be applied,
treating the machinery space, taken alone, as a floodable compartment.
(b) When doing the calculations required in paragraph (a) of this
section, the following permeabilities must be assumed:
(1) 0.95 in all locations except the machinery space.
(2) 0.85 in the machinery space.
[CGD 79-153, 48 FR 38648, Aug. 25, 1983]
Sec. 42.20-9 Initial conditions of loading.
When doing the calculations required in Sec. Sec. 42.20-6(a),
42.20-7(a) and 42.20-8(a), the initial condition of loading before
flooding must be assumed to be as specified in this section:
(a) The vessel is assumed to be loaded to its summer load waterline
with no trim.
(b) When calculating the vertical center of gravity, the following
assumptions apply:
(1) The cargo is assumed to be homogeneous.
(2) Except as specified in paragraph (b)(3) of this section, all
cargo compartments are assumed to be fully loaded. This includes
compartments intended to be only partially filled. In the case of liquid
cargoes, fully loaded means 98 percent full.
(3) If the vessel is intended to operate at its summer load
waterline with empty compartments, these empty compartments are assumed
to be empty rather than fully loaded if the resulting height of the
vertical center of gravity is not less than the height determined in
accordance with paragraph (b)(2) of this section.
(4) Fifty percent of the total capacity of all tanks and spaces
fitted to contain consumable liquids or stores must be assumed to be
distributed to accomplish the following:
(i) Each tank and space fitted to contain consumable liquids or
stores must be assumed either completely empty or completely filled.
(ii) The consumables must be distributed so as to produce the
greatest possible height above the keel for the center of gravity.
(5) Weights are calculated using the following values for specific
gravities:
Salt water--1.025
Fresh water--1.000
Oil fuel--0.950
Diesel oil--0.900
Lube oil--0.900
[CGD 79-153, 48 FR 38648, Aug. 25, 1983]
Sec. 42.20-10 Free surface.
When doing the calculations required in Sec. Sec. 42.20-6(a),
42.20-7(a) and 42.20-8(a), the effect of free surface of the following
liquids must be included:
(a) For each type of consumable liquid, the maximum free surface of
at least one transverse pair of tanks or a single centerline tank must
be included. The tank or combination of tanks must be that resulting in
the greatest free surface effect.
(b) For cargo liquids, unless the compartment is assumed to be empty
as required by Sec. 42.20-9(b)(3), the free surface of those
compartments containing liquids is calculated at an angle of heel of not
more than 5 degrees.
[CGD 79-153, 48 FR 38649, Aug. 25, 1983]
Sec. 42.20-11 Extent of damage.
When doing the calculations required by Sec. Sec. 42.20-6(a),
42.20-7(a) and 42.20-8(a), the following must be assumed:
(a) The vertical extent of damage in all cases must be assumed to be
from the baseline upward without limit.
[[Page 41]]
(b) The transverse extent of damage is assumed to be equal to B/5 or
11.5 meters (37.7 feet), whichever is less. The transverse extent is
measured inboard from the side of the ship perpendicularly to the center
line at the level of the summer load waterline.
(c) If damage of a lesser extent than that specified in paragraph
(a) or (b) of this section results in a more severe condition, the
lesser extent must be assumed.
(d) The following assumptions apply to the transverse damage
specified in paragraph (b) of this section for a stepped or recessed
bulkhead:
(1) A transverse watertight bulkhead that has a step or recess
located within the transverse extent of assumed damage may be considered
intact if the step or recess is not more than 3.05 meters (10 feet) in
length.
(2) If a transverse watertight bulkhead has a step or recess of more
than 3.05 meters (10 feet) in length, within the transverse extent of
assumed damage, the two compartments adjacent to this bulkhead must be
considered as flooded.
(3) If within the transverse extent of damage, a transverse bulkhead
has a step or recess more than 3.05 meters (10 feet) in length that
coincides with the double bottom tank top or the inner boundary of a
wing tank, respectively, all adjacent compartments within the transverse
extent of assumed damage must be considered to be flooded
simultaneously.
(e) If a wing tank has openings into adjacent compartments, the wing
tank and adjacent compartments must be considered as one compartment.
This provision applies even where these openings are fitted with closing
appliances except:
(1) Valves fitted in bulkheads between tanks which are controlled
from above the bulkhead deck.
(2) Secured manhole covers fitted with closely spaced bolts.
(f) Only transverse watertight bulkheads that are spaced apart at
least \1/3\(L)\2/3\ or 14.5 meters (0.495(L)\2/3\ or 47.6 feet),
whichever is less, may be considered effective. If transverse bulkheads
are closer together, then one or more of these bulkheads must be assumed
to be non-existent in order to achieve the minimum spacing between
bulkheads.
[CGD 79-153, 48 FR 38649, Aug. 25, 1983]
Sec. 42.20-12 Conditions of equilibrium.
The following conditions of equilibrium are regarded as
satisfactory:
(a) Downflooding. The final waterline after flooding, taking into
account sinkage, heel, and trim, is below the lower edge of any opening
through which progressive flooding can take place. Such openings include
air pipes, ventilators, and openings which are closed by means of
weathertight doors (even if they comply with Sec. 42.15-10) or covers
(even if they comply with Sec. 42.15-30 or Sec. 42.15-45(d)) but may
exclude those openings closed by means of:
(1) Manhole covers and flush scuttles which comply with Sec. 42.15-
40;
(2) Cargo hatch covers which comply with Sec. 42.09-5(b);
(3) Hinged watertight doors in an approved position which are
secured closed while at sea and so logged; and
(4) Remotely operated sliding watertight doors, and side scuttles of
the non-opening type which comply with Sec. 42.15-65.
(b) Progressive flooding. If pipes, ducts, or tunnels are situated
within the assumed extent of damage penetration as defined in Sec.
42.20-11 (a) and (b), progressive flooding cannot extend to compartments
other than those assumed to be floodable in the calculation for each
case of damage.
(c) Final angle of heel. The angle of heel due to unsymmetrical
flooding does not exceed 15 degrees. If no part of the deck is immersed,
an angle of heel of up to 17 degrees may be accepted.
(d) Metacentric height. The metacentric height of the damaged
vessel, in the upright condition, is positive.
(e) Residual stability. Through an angle of 20 degrees beyond its
position of equilibrium, the vessel must meet the following conditions:
(1) The righting arm must be positive.
(2) The maximum righting arm must be at least 0.1 meter (4 inches).
(3) The area under the righting arm curve within the 20 degree range
must
[[Page 42]]
not be less than 0.0175 meter-radians (0.689 inch-radians).
(4) Each submerged opening must be weathertight (e.g. a vent fitted
with a ball check valve).
(f) Intermediate stages of flooding. The Commandant is satisfied
that the stability is sufficient during intermediate stages of flooding.
[CGD 79-153, 48 FR 38649, Aug. 25, 1983]
Sec. 42.20-13 Vessels without means of propulsion.
(a) A lighter, barge, or other vessel without independent means of
propulsion is assigned a freeboard in accordance with the provisions of
this subpart as modified by paragraphs (b), (c), and (d) of this
section.
(b) A barge that meets the requirements of Sec. 42.09-5(b) may be
assigned Type ``A'' freeboard if the barge does not carry deck cargo.
(c) An unmanned barge is not required to comply with Sec. 42.15-75,
Sec. 42.15-80(b), or Sec. 42.20-70.
(d) An unmanned barge that has only small access openings closed by
watertight gasketed covers of steel or equivalent material on the
freeboard deck, may be assigned a freeboard 25 percent less than that
calculated in accordance with this subpart.
[CGD 79-153, 48 FR 38649, Aug. 25, 1983]
Sec. 42.20-15 Freeboard tables.
(a) Type ``A'' vessel. (1) The tabular freeboard for Type ``A''
vessel shall be determined from table 42.20-15(a)(1):
Table 42.20-15(a)(1)--Freeboard Table for Type ``A'' Vessels
------------------------------------------------------------------------
Freeboard
Length of vessel (feet) \1\
(inches)
------------------------------------------------------------------------
80........................................................... 8.0
90........................................................... 8.9
100.......................................................... 9.8
110.......................................................... 10.8
120.......................................................... 11.9
130.......................................................... 13.0
140.......................................................... 14.2
150.......................................................... 15.5
160.......................................................... 16.9
170.......................................................... 18.3
180.......................................................... 19.8
190.......................................................... 21.3
200.......................................................... 22.9
210.......................................................... 24.5
220.......................................................... 26.2
230.......................................................... 27.8
240.......................................................... 29.5
250.......................................................... 31.1
260.......................................................... 32.8
270.......................................................... 34.6
280.......................................................... 36.3
290.......................................................... 38.0
300.......................................................... 39.7
310.......................................................... 41.4
320.......................................................... 43.2
330.......................................................... 45.0
340.......................................................... 46.9
350.......................................................... 48.8
360.......................................................... 50.7
370.......................................................... 52.7
380.......................................................... 54.7
390.......................................................... 56.8
400.......................................................... 58.8
410.......................................................... 60.9
420.......................................................... 62.9
430.......................................................... 65.0
440.......................................................... 67.0
450.......................................................... 69.1
460.......................................................... 71.1
470.......................................................... 73.1
480.......................................................... 75.1
490.......................................................... 77.1
500.......................................................... 79.0
510.......................................................... 80.9
520.......................................................... 82.7
530.......................................................... 84.5
540.......................................................... 86.3
550.......................................................... 88.0
560.......................................................... 89.6
570.......................................................... 91.1
580.......................................................... 92.6
590.......................................................... 94.1
600.......................................................... 95.5
610.......................................................... 96.9
620.......................................................... 98.3
630.......................................................... 99.6
640.......................................................... 100.9
650.......................................................... 102.1
660.......................................................... 103.3
670.......................................................... 104.4
680.......................................................... 105.5
690.......................................................... 106.6
700.......................................................... 107.7
710.......................................................... 108.7
720.......................................................... 109.7
730.......................................................... 110.7
740.......................................................... 111.7
750.......................................................... 112.6
760.......................................................... 113.5
770.......................................................... 114.4
780.......................................................... 115.3
790.......................................................... 116.1
800.......................................................... 117.0
810.......................................................... 117.8
820.......................................................... 118.6
830.......................................................... 119.3
840.......................................................... 120.1
850.......................................................... 120.7
860.......................................................... 121.4
870.......................................................... 122.1
880.......................................................... 122.7
890.......................................................... 123.4
900.......................................................... 124.0
910.......................................................... 124.6
920.......................................................... 125.2
930.......................................................... 125.7
940.......................................................... 126.2
950.......................................................... 126.7
[[Page 43]]
960.......................................................... 127.2
970.......................................................... 127.7
980.......................................................... 128.1
990.......................................................... 128.6
1,000........................................................ 129.0
1,010........................................................ 129.4
1,020........................................................ 129.9
1,030........................................................ 130.3
1,040........................................................ 130.7
1,050........................................................ 131.0
1,060........................................................ 131.4
1,070........................................................ 131.7
1,080........................................................ 132.0
1,090........................................................ 132.3
1,100........................................................ 132.6
1,110........................................................ 132.9
1,120........................................................ 133.2
1,130........................................................ 133.5
1,140........................................................ 133.8
1,150........................................................ 134.0
1,160........................................................ 134.3
1,170........................................................ 134.5
1,180........................................................ 134.7
1,190........................................................ 135.0
1,200........................................................ 135.2
1,200 \2\....................................................
------------------------------------------------------------------------
\1\ Freeboards at intermediate lengths of vessels shall be obtained by
linear interpolation.
\2\ Vessels above 1,200 feet in length shall be dealt with by the
Commandant.
(b) Type ``B'' vessels. (1) The tabular freeboard for Type ``B''
vessels shall be determined from table 42.20-15(b)(1):
Table 42.20-15(b)(1)--Freeboard Table for Type ``B'' Vessels
------------------------------------------------------------------------
Freeboard
Length of vessel (feet) \1\
(inches)
------------------------------------------------------------------------
80........................................................... 8.0
90........................................................... 8.9
100.......................................................... 9.8
110.......................................................... 10.8
120.......................................................... 11.9
130.......................................................... 13.0
140.......................................................... 14.2
150.......................................................... 15.5
160.......................................................... 16.9
170.......................................................... 18.3
180.......................................................... 19.8
190.......................................................... 21.3
200.......................................................... 22.9
210.......................................................... 24.7
220.......................................................... 26.6
230.......................................................... 28.5
240.......................................................... 30.4
250.......................................................... 32.4
260.......................................................... 34.4
270.......................................................... 36.5
280.......................................................... 38.7
290.......................................................... 41.0
300.......................................................... 43.3
310.......................................................... 45.7
320.......................................................... 48.2
330.......................................................... 50.7
340.......................................................... 53.2
350.......................................................... 55.7
360.......................................................... 58.2
370.......................................................... 60.7
380.......................................................... 63.2
390.......................................................... 65.7
400.......................................................... 68.2
410.......................................................... 70.7
420.......................................................... 73.2
430.......................................................... 75.7
440.......................................................... 78.2
450.......................................................... 80.7
460.......................................................... 83.1
470.......................................................... 85.6
480.......................................................... 88.1
490.......................................................... 90.6
500.......................................................... 93.1
510.......................................................... 95.6
520.......................................................... 98.1
530.......................................................... 100.6
540.......................................................... 103.0
550.......................................................... 105.4
560.......................................................... 107.7
570.......................................................... 110.0
580.......................................................... 112.3
590.......................................................... 114.6
600.......................................................... 116.8
610.......................................................... 119.0
620.......................................................... 121.1
630.......................................................... 123.2
640.......................................................... 125.3
650.......................................................... 127.3
660.......................................................... 129.3
670.......................................................... 131.3
680.......................................................... 133.3
690.......................................................... 135.3
700.......................................................... 137.1
710.......................................................... 139.0
720.......................................................... 140.9
730.......................................................... 142.7
740.......................................................... 144.5
750.......................................................... 146.3
760.......................................................... 148.1
770.......................................................... 149.8
780.......................................................... 151.5
790.......................................................... 153.2
800.......................................................... 154.8
810.......................................................... 156.4
820.......................................................... 158.0
830.......................................................... 159.6
840.......................................................... 161.2
850.......................................................... 162.8
860.......................................................... 164.3
870.......................................................... 165.9
880.......................................................... 167.4
890.......................................................... 168.9
900.......................................................... 170.4
910.......................................................... 171.8
920.......................................................... 173.3
930.......................................................... 174.7
940.......................................................... 176.1
950.......................................................... 177.5
960.......................................................... 178.9
970.......................................................... 180.3
980.......................................................... 181.7
990.......................................................... 183.1
1,000........................................................ 184.4
1,010........................................................ 185.8
1,020........................................................ 187.2
1,030........................................................ 188.5
1,040........................................................ 189.8
1,050........................................................ 191.0
[[Page 44]]
1,060........................................................ 192.3
1,070........................................................ 193.5
1,080........................................................ 194.8
1,090........................................................ 196.1
1,100........................................................ 197.3
1,110........................................................ 198.6
1,120........................................................ 199.9
1,130........................................................ 201.2
1,140........................................................ 202.3
1,150........................................................ 203.5
1,160........................................................ 204.6
1,170........................................................ 205.8
1,180........................................................ 206.9
1,190........................................................ 208.1
1,200........................................................ 209.3
1,200 \2\.................................................... .........
------------------------------------------------------------------------
\1\ Freeboards at intermediate lengths of vessel shall be obtained by
linear interpolation.
\2\ Vessels above 1,200 feet in length shall be dealt with by the
Commandant.
[CGFR 68-60, 33 FR 10064, July 12, 1968, as amended by CGFR 68-126, 34
FR 9015, June 5, 1969]
Sec. 42.20-20 Correction to the freeboard for vessels under 328 feet
in length.
(a) The tabular freeboard for a Type ``B'' vessel of between 79 feet
and 328 feet in length having enclosed superstructures with an effective
length of up to 35 percent of the length of the vessel shall be
increased by:
0.09 (328-L) [0.35-(E/L)] inches
where:
L = length of vessel in feet.
E = effective length of superstructure in feet as defined in Sec.
42.20-50.
[CGFR 68-60, 33 FR 10064, July 12, 1968]
Sec. 42.20-25 Correction for block coefficient.
If the block coefficient (Cb) exceeds 0.68, the tabular freeboard
specified in Sec. 42.20-15 as modified, if applicable, by Sec. Sec.
42.20-5 (b) and (d), and 42.20-20(a) must be multiplied by the factor
(Cb + 0.68)/1.36.
[CGD 79-153, 48 FR 38650, Aug. 25, 1983]
Sec. 42.20-30 Correction for depth.
(a) Where D exceeds L\1/15\ the freeboard shall be increased by [D-
(L/15)] R inches, where R is L/131.2 at lengths less than 393.6 feet and
3 at 393.6 feet length and above.
(b) Where D is less than L/15 no reduction shall be made except in a
vessel with an enclosed superstructure covering at least 0.6L amidships,
with a complete trunk, or combination of detached enclosed
superstructures and trunks which extend all fore and aft, where the
freeboard shall be reduced at the rate prescribed in paragraph (a) of
this section.
(c) Where the height of superstructure or trunk is less than the
standard height, the reduction shall be in the ratio of the actual to
the standard height as defined in Sec. 42.20-40.
[CGFR 68-60, 33 FR 10064, July 12, 1968]
Sec. 42.20-35 Correction for position of deck line.
(a) Where the actual depth to the upper edge of the deck line is
greater or less than D, the difference between the depths shall be added
to or deducted from the freeboard.
[CGFR 68-60, 33 FR 10065, July 12, 1968]
Sec. 42.20-40 Standard height of superstructure.
(a) The standard height of a superstructure shall be as given in
table 42.20-40(a):
Table 42.20-40(a) Standard Heights (in Feet) \1\
------------------------------------------------------------------------
Raised All other
Length (L) (in feet) quarter super
deck structures
------------------------------------------------------------------------
98.5 or less...................................... 3.0 5.9
246............................................... 3.9 5.9
410 or more....................................... 5.9 7.5
------------------------------------------------------------------------
\1\ The standard heights at intermediate lengths of the vessel shall be
obtained by linear interpolation.
[CGFR 68-60, 33 FR 10065, July 12, 1968, as amended by CGFR 68-126, 34
FR 9015, June 5, 1969]
Sec. 42.20-45 Length of superstructure.
(a) Except as provided in paragraph (b) of this section, the length
of a superstructure (S) shall be the mean length of the parts of the
superstructure which lie within the length (L).
(b) Where the end bulkhead of an enclosed superstructure extends in
a fair convex curve beyond its intersection with the superstructure
sides, the length of the superstructure may be increased on the basis of
an equivalent
[[Page 45]]
plane bulkhead. This increase shall be two-thirds of the fore and aft
extent of curvature. The maximum curvature which may be taken into
account in determining this increase is one-half the breadth of the
superstructure at the point of intersection of the curved end of the
superstructure with its side.
[CGFR 68-60, 33 FR 10065, July 12, 1968, as amended by CGFR 68-126, 34
FR 9015, June 5, 1969]
Sec. 42.20-50 Effective length of superstructure.
(a) Except as provided for in paragraph (b) of this section the
effective length (E) of an enclosed superstructure of standard height
shall be its length.
(b) In all cases where an enclosed superstructure of standard height
is set in from the sides of the vessel as permitted in Sec. 42.13-
15(j), the effective length shall be the length modified by the ratio of
b/Bs,
where:
``b'' is the breadth of the superstructure at the middle of its length;
``Bs'' is the breadth of the vessel at the middle of the length of the
superstructure.
(1) Where a superstructure is set in for a part of its length, this
modification shall be applied only to the set in part.
(c) Where the height of an enclosed superstructure is less than the
standard height, the effective length shall be its length reduced in the
ratio of the actual height to the standard height. Where the height
exceeds the standard, no increase shall be made to the effective length
of the superstructure.
(d) The effective length of a raised quarter deck if fitted with an
intact front bulkhead, shall be its length up to a maximum of 0.6L.
Where the bulkhead is not intact, the raised quarter deck shall be
treated as a poop of less than standard height.
(e) Superstructures which are not enclosed shall have no effective
length.
[CGFR 68-60, 33 FR 10065, July 12, 1968]
Sec. 42.20-55 Trunks.
(a) A trunk or similar structure which does not extend to the sides
of the vessel shall be regarded as efficient on the following
conditions:
(1) The trunk is at least as strong as a superstructure;
(2) The hatchways are in the trunk deck, and the hatchway coamings
and covers comply with the requirements of Sec. Sec. 42.15-15 to 42.15-
30, inclusive, and the width of the trunk deck stringer provides a
satisfactory gangway and sufficient lateral stiffness; however, small
access openings with watertight covers may be permitted in the freeboard
deck;
(3) A permanent working platform fore and aft fitted with guard
rails is provided by the trunk deck, or by detached trunks connected to
superstructures by efficient permanent gangways;
(4) Ventilators are protected by the trunk by watertight covers or
by other equivalent means;
(5) Open rails are fitted on the weather parts of the freeboard deck
in way of the trunk for at least half their length;
(6) The machinery casings are protected by the trunk, by a
superstructure of at least standard height, or by a deckhouse of the
same height and of equivalent strength;
(7) The breadth of the trunk is at least 60 percent of the breadth
of the vessel; and,
(8) Where there is no superstructure, the length of the trunk is at
least 0.6L.
(b) The full length of an efficient trunk reduced in the ratio of
its mean breadth to B shall be its effective length.
(c) The standard height of a trunk is the standard height of a
superstructure other than a raised quarter deck.
(d) Where the height of a trunk is less than the standard height,
its effective length shall be reduced in the ratio of the actual to the
standard height. Where the height of hatchway coamings on the trunk deck
is less than that required under Sec. 42.15-25(a), a reduction from the
actual height of trunk shall be made which corresponds to the difference
between the actual and required height of coaming.
[CGFR 68-60, 33 FR 10065, July 12, 1968, as amended by CGFR 68-126, 34
FR 9015, June 5, 1969]
[[Page 46]]
Sec. 42.20-60 Deduction for superstructures and trunks.
(a) Where the effective length of superstructures and trunks is
1.0L, the deduction from the freeboard shall be 14 inches at 79 feet
length of vessel, 34 inches at 279 feet length, and 42 inches at 400
feet length and above; deductions at intermediate lengths shall be
obtained by linear interpolation.
(b) Where the total effective length of superstructures and trunks
is less than 1.0L the deduction shall be a percentage obtained from
table 42.20-60(b)(1) or table 42.20-60(b)(2):
Table 42.20-60(b)(1)--Percentage of Deduction For Type ``A'' Vessels
----------------------------------------------------------------------------------------------------------------
Total effective length of superstructures and trunks
----------------------------------------------------------------------------
0 0.1L 0.2L 0.3L 0.4L 0.5L 0.6L 0.7L 0.8L 0.9L 1.0L
----------------------------------------------------------------------------------------------------------------
Percentage of deduction for all 0 7 14 21 31 41 52 63 75.3 87.7 100
types of superstructures \1\......
----------------------------------------------------------------------------------------------------------------
\1\ Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.
Table 42.20-60(b)(2)--Percentage of Deduction for Type ``B'' Vessels
[Percentage of deduction \1\]
----------------------------------------------------------------------------------------------------------------
Total effective length of superstructures and trunks
-----------------------------------------------------------------------------------
Line 0 0.1L 0.2L 0.3L 0.4L 0.5L 0.6L 0.7L 0.8L 0.9L 1.0L
----------------------------------------------------------------------------------------------------------------
Vessels with forecastle and I 0 5 10 15 23.5 32 46 63 75.3 87.7 100
without detached bridge....
Vessels with forecastle and II 0 6.3 12.7 19 27.5 36 46 63 75.3 87.7 100
detached bridge............
----------------------------------------------------------------------------------------------------------------
\1\ Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.
(c) For vessels of Type ``B'':
(1) Where the effective length of a bridge is less than 0.2L, the
percentages shall be obtained by linear interpolation between lines I
and II;
(2) Where the effective length of a forecastle is more than 0.4L,
the percentages shall be obtained from line II; and,
(3) Where the effective length of a forecastle is less than 0.07L,
the percentages in table 42.20-60(b)(2) of this paragraph shall be
reduced by:
5(0.07L-f)/0.07L
L is the length of vessel as defined in Sec. 42.13-15(a),
f is the effective length of the forecastle.
[CGFR 68-60, 33 FR 10065, July 12, 1968, as amended by CGFR 68-126, 34
FR 9015, June 5, 1969; USCG-2014-0688, 79 FR 58280, Sept. 29, 2014]
Sec. 42.20-65 Sheer.
(a) General. (1) The sheer shall be measured from the deck at side
to a line of reference drawn parallel to the keel through the sheer line
amidships.
(2) In vessels designed with a rake of keel, the sheer shall be
measured in relation to a reference line drawn parallel to the design
load waterline.
(3) In flush deck vessels and in vessels with detached
superstructures the sheer shall be measured at the freeboard deck.
(4) In vessels with topsides of unusual form in which there is a
step or break in the topsides, the sheer shall be considered in relation
to the equivalent depth amidships.
(5) In vessels with a superstructure of standard height which
extends over the whole length of the freeboard deck, the sheer shall be
measured at the superstructure deck. Where the height exceeds the
standard the least difference (Z) between the actual and standard
heights shall be added to each end ordinate. Similarly, the intermediate
ordinates at distances of \1/6\L and \1/3\L from each perpendicular
shall be increased by 0.444Z and 0.111Z respectively.
(6) Where the deck of an enclosed superstructure has at least the
same sheer as the exposed freeboard deck, the sheer of the enclosed
portion of the freeboard deck shall not be taken into account.
[[Page 47]]
(7) Where an enclosed poop or forecastle is of standard height with
greater sheer than that of the freeboard deck, or is of more than
standard height, an addition to the sheer of the freeboard deck shall be
made as provided in paragraph (c)(4) of this section.
(b) Standard sheer profile. (1) The ordinates of the standard sheer
profile are given in table 42.20-65(b)(1):
Table 42.20-65(b)(1)--Standard Sheer Profile
[Where L is in feet]
----------------------------------------------------------------------------------------------------------------
Station Ordinate (in inches) Ordinate (in inches) Factor
----------------------------------------------------------------------------------------------------------------
After half......................... After Perpendicular.. 0.1.................. L + 10............... 1
\1/6\ L from A.P..... 0.0444............... L + 4.44............. 3
\1/3\ L from A.P..... 0.0111............... L + 1.11............. 3
Amidships............ ..................... 0.................... 1
----------------------------------------------------------------------------------------------------------------
Forward half....................... Amidships............ ..................... 0.................... 1
\1/3\ L from F.P..... 0.0222............... L + 2.22............. 3
\1/6\ L from F.P..... 0.0888............... L + 8.88............. 3
Forward Perpendicular 0.2.................. L + 20............... 1
----------------------------------------------------------------------------------------------------------------
(c) Measurement of variation from standard sheer profile. (1) Where
the sheer profile differs from the standard, the four ordinates of each
profile in the forward or after half shall be multiplied by the
appropriate factors given in the table of ordinates. The difference
between the sums of the respective products and those of the standard
divided by 8 measures the deficiency or excess of sheer in the forward
or after half. The arithmetical mean of the excess or deficiency in the
forward and after halves measures the excess or deficiency of sheer.
(2) Where the after half of the sheer has an excess and the forward
half of the sheer has a deficiency, no credit shall be allowed for the
part in excess and deficiency only shall be measured.
(3) Where the forward half of the sheer profile exceeds the
standard, and the after portion of the sheer profile is not less than 75
percent of the standard, credit shall be allowed for the part in excess;
where the after part is less than 50 percent of the standard, no credit
shall be given for the excess sheer forward. Where the after sheer is
between 50 percent and 75 percent of the standard, intermediate
allowances may be granted for excess sheer forward.
(4) Where sheer credit is given for a poop or forecastle, the
following formula shall be used:
s = (y/3)(L'/L)
where:
s = sheer credit, to be deducted from the deficiency or added to the
excess of sheer.
y = difference between actual and standard height of superstructure at
the end ordinate.
L' = mean enclosed length of poop or forecastle up to a maximum length
of 0.5L.
L = length of vessel as defined in Sec. 42.13-15(a).
(i) The formula in this paragraph (c)(4) of this section provides a
curve in the form of a parabola tangent to the actual sheer curve at the
freeboard deck and intersecting the end ordinate at a point below the
superstructure deck a distance equal to the standard height of a
superstructure. The superstructure deck shall not be less than standard
height above this curve at any point. This curve shall be used in
determining the sheer profile for forward and after halves of the
vessel.
(d) Correction for variations from standard sheer profile. (1) The
correction for sheer shall be the deficiency or excess of sheer (see
paragraphs (c) (1) to (4) inclusive of this section) multiplied by:
0.75-(S/2L)
where:
S is the total length of enclosed superstructures.
(e) Addition for deficiency in sheer. (1) Where the sheer is less
than the standard, the correction for deficiency in sheer (see paragraph
(d)(1) of this section) shall be added to the freeboard.
(f) Deduction for excess sheer. (1) In vessels where an enclosed
superstructure covers 0.1L before and 0.1L abaft amidships, the
correction for excess of sheer as calculated under the provisions of
paragraph (d)(1) of this section shall be deducted from the freeboard;
in vessels where no enclosed superstructure covers amidships, no
deduction shall be made from the freeboard; where an enclosed
superstructure covers less than 0.1L before and 0.1L abaft amidships,
the deduction
[[Page 48]]
shall be obtained by linear interpolation. The maximum deduction for
excess sheer shall be at the rate of 1\1/2\ inches per 100 feet of
length.
[CGFR 68-60, 33 FR 10066, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.20-70 Minimum bow height.
(a) The bow height defined as the vertical distance at the forward
perpendicular between the waterline corresponding to the assigned summer
freeboard and the designed trim and the top of the exposed deck at side
shall be not less than:
(1) For vessels below 820 feet in length,
0.672L[1-(L/1640)][1.36/(Cb + 0.68)] inches;
where:
L is the length of the vessel in feet.
Cb is the block coefficient which is to be taken as not less
than 0.68.
(2) For vessels of 820 feet and above in length,
275.6[1.36/(Cb + 0.68)] inches;
where:
Cb is the block coefficient which is to be taken as not less
than 0.68.
(b) Where the bow height required in paragraph (a) of this section
is obtained by sheer, the sheer shall extend for at least 15 percent of
the length of the vessel measured from the forward perpendicular. Where
it is obtained by fitting a superstructure, such superstructure shall
extend from the stem to a point at least 0.07L abaft the forward
perpendicular, and it shall comply with the following requirements:
(1) For vessels not over 328 feet in length it shall be enclosed as
defined in Sec. 42.13-15(j); and,
(2) For vessels over 328 feet in length it need not comply with
Sec. 42.13-15(j) but shall be fitted with closing appliances to the
satisfaction of the assigning authority.
(c) Vessels which, to suit exceptional operational requirements,
cannot meet the requirements of paragraphs (a) and (b) of this section
may be given special consideration by the assigning authority.
[CGFR 68-60, 33 FR 10066, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.20-75 Minimum freeboards.
(a) Summer freeboard. (1) The minimum freeboard in summer must be
the freeboard derived from the tables in Sec. 42.20-15 as modified by
the corrections in Sec. Sec. 42.20-3 and 42.20-5, as applicable, and
Sec. Sec. 42.20-20, 42.20-25, 42.20-30, 42.20-35, 42.20-60, 42.20-65
and, if applicable, Sec. 42.20-70.
(2) The freeboard in salt water, as calculated in accordance with
paragraph (a)(1) of this section, but without the correction for deck
line, as provided by Sec. 42.20-35, shall not be less than 2 inches.
For vessels having in position 1 hatchways with covers which do not
comply with the requirements of Sec. Sec. 42.15-25(d)(1), 42.15-30, or
42.15-80, the freeboard shall be not less than 6 inches.
(b) Tropical freeboard. (1) The minimum tropical freeboard shall be
the freeboard obtained by a deduction from the summer freeboard of one
forty-eighth of the summer draft measured from the top of the keel to
the center of the ring of the load line mark.
(2) The freeboard in salt water, as calculated in accordance with
paragraph (b)(1) of this section, but without the correction for deck
line, as provided by Sec. 42.20-35, shall not be less than 2 inches.
For vessels having in position 1 hatchways with covers which do not
comply with the requirements of Sec. 42.15-25(d)(1), Sec. 42.15-30, or
Sec. 42.15-80, the freeboard shall be not less than 6 inches.
(c) Winter freeboard. (1) The minimum winter freeboard shall be the
freeboard obtained by an addition to the summer freeboard of one forty-
eighth of summer draft, measured from the top of the keel to the center
of the ring of the load line mark.
(d) Winter North Atlantic freeboard. (1) The minimum freeboard for
vessels of not more than 328 feet in length which enter any part of the
North Atlantic defined in Sec. 42.30-35 during the winter seasonal
period shall be the winter
[[Page 49]]
freeboard plus 2 inches. For other vessels the winter North Atlantic
freeboard shall be the winter freeboard.
(e) Fresh water freeboard. (1) The minimum freeboard in fresh water
of unit density shall be obtained by deducting from the minimum
freeboard in salt water:
([Delta]/40 T) inches
where:
[Delta] = displacement in salt water in tons at the summer load
waterline; and,
T = tons per inch immersion in salt water at the summer load waterline.
(2) Where the displacement at the summer load waterline cannot be
certified, the deduction shall be one forty-eighth of summer draft,
measured from the top of the keel to the center of the ring of the load
line mark.
[CGFR 68-60, 33 FR 10066, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969; CGD 79-153, 48 FR 38650, Aug. 25, 1983]
Subpart 42.25_Special Requirements for Vessels Assigned Timber
Freeboards
Sec. 42.25-1 Application of this subpart.
(a) The provisions of this subpart 42.25 apply only to vessels to
which timber load lines are assigned.
[CGFR 68-60, 33 FR 10067, July 12, 1968]
Sec. 42.25-5 Definitions of terms used in this subpart.
(a) Timber deck cargo. The term ``timber deck cargo'' means a cargo
of timber carried on an uncovered part of a freeboard or superstructure
deck. The term does not include wood pulp or similar cargo.
(b) Timber load line. A timber deck cargo may be regarded as giving
a vessel a certain additional buoyancy and a greater degree of
protection against the sea. For that reason, vessels carrying a timber
deck cargo may be granted a reduction of freeboard calculated according
to the provisions of Sec. 42.25-20 and marked on the vessel's side in
accordance with the provisions of Sec. 42.13-30(c) and (d). However, in
order that such special freeboard may be granted and used, the timber
deck cargo shall comply with certain conditions which are laid down in
Sec. 42.25-15, and the vessel itself shall also comply with certain
conditions relating to its construction which are set out in Sec.
42.25-10.
[CGFR 68-60, 33 FR 10067, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.25-10 Construction of vessel.
(a) Superstructure. (1) Vessels, shall have a forecastle of at least
standard height and a length of at least 0.07L. In addition, if the
vessel is less than 328 feet in length, a poop of at least standard
height, or a raised quarter deck with either a deckhouse or a strong
steel hood of at least the same total height shall be fitted aft.
(b) Double bottom tanks. (1) Double bottom tanks where fitted within
the midship half length of the vessel shall have adequate watertight
longitudinal subdivision.
(c) Bulwarks. (1) The vessel shall be fitted either with permanent
bulwarks at least 39\1/2\ inches in height, specially stiffened on the
upper edge and supported by strong bulwark stays attached to the deck
and provided with necessary freeing ports, or with efficient rails of
the same height and of specially strong construction.
[CGFR 68-60, 33 FR 10067, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.25-15 Stowage.
(a) General. (1) Openings in the weather deck over which cargo is
stowed shall be securely closed and battened down. The ventilators shall
be efficiently protected.
(2) Timber deck cargo shall extend over at least the entire
available length which is the total length of the well or wells between
superstructures. Where there is no limiting superstructure at the after
end, the timber shall extend at least to the after end of the aftermost
hatchway. The timber shall be stowed as solidly as possible, to at least
the standard height of a superstructure other than a raised quarter
deck.
(3) On a vessel within a seasonal winter zone in winter, the height
of the deck cargo above the weather deck shall not exceed one-third of
the extreme breadth of the vessel.
[[Page 50]]
(4) The timber deck cargo shall be compactly stowed, lashed, and
secured. It shall not interfere in any way with the navigation and
necessary work of the vessel.
(b) Upright. (1) Uprights, when required by the nature of the
timber, shall be of adequate strength considering the breadth of the
vessel; the spacing shall be suitable for the length and character of
timber carried, but shall not exceed 9.8 feet. Strong angles or metal
sockets or equally efficient means shall be provided for securing the
uprights.
(c) Lashings. (1) Timber deck cargo shall be efficiently secured
throughout its length by independent overall lashings spaced not more
than 9.8 feet apart. Eye plates for these lashings shall be efficiently
attached to the sheer strake or to the deck stringer plate at intervals
of not more than 9.8 feet. The distance from an end bulkhead of a
superstructure to the first eye plate shall be not more than 6.6 feet.
Eye plates and lashings shall be provided 23\1/2\ inches and 4.9 feet
from the ends of timber deck cargoes where there is no bulkhead.
(2) Lashings shall be not less than \3/4\-inch close link chain or
flexible wire rope of equivalent strength, fitted with sliphooks and
turnbuckles, which shall be accessible at all times. Wire rope lashings
shall have a short length of long link chain to permit the length of
lashings to be regulated.
(3) When timber is in lengths less than 11.8 feet the spacing of the
lashings shall be reduced or other suitable provisions made to suit the
length of timber.
(4) All fittings required for securing the lashings shall be of
strength corresponding to the length of the lashings.
(d) Stability. (1) Provision shall be made for a safe margin of
stability at all stages of the voyage, regard being given to additions
of weight, such as those due to absorption of water and icing and to
losses of weight such as those due to consumption of fuel and stores.
(e) Protection of crew, access to machinery spaces, etc. (1) In
addition to the requirements of Sec. 42.15-75(e) guardrails or life
lines spaced not more than 13 inches apart vertically shall be provided
on each side of the deck cargo to a height of at least 39\1/2\ inches
above the cargo.
(f) Steering arrangements. (1) Steering arrangements shall be
effectively protected from damage by cargo and, as far as practicable,
shall be accessible. Efficient provision, shall be made for steering in
the event of a breakdown in the main steering arrangements.
[CGFR 68-60, 33 FR 10067, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.25-20 Computation for freeboard.
(a) The minimum summer freeboards must be computed in accordance
with Sec. Sec. 42.20-5 (a) and (b), 42.20-13, 42.20-15, 42.20-20,
42.20-25, 42.20-30, 42.20-35, 42.20-60, and 42.20-65, except that Sec.
42.20-60 is modified by substituting the percentages in table 42.25-
20(a) for those given in Sec. 42.20-60:
Table 42.25-20(a)--Percentage of Deduction for Superstructure
[Total Effective Length of Superstructure]
----------------------------------------------------------------------------------------------------------------
0 0.1L 0.2L 0.3L 0.4L 0.5L 0.6L 0.7L 0.8L 0.9L 1.0L
----------------------------------------------------------------------------------------------------------------
Percentage of deduction for all 20 31 42 53 64 70 76 82 88 94 100
types of superstructure \1\.......
----------------------------------------------------------------------------------------------------------------
\1\ Percentages at intermediate lengths of superstructures shall be obtained by linear interpolation.
(b) The winter timber freeboard shall be obtained by adding to the
summer timber freeboard one thirty-sixth of the molded summer timber
draft.
(c) The winter North Atlantic timber freeboard shall be the same as
the winter North Atlantic freeboard prescribed in Sec. 42.20-75(d)(1).
(d) The tropical timber freeboard shall be obtained by deducting
from the summer timber freeboard one forty-eighth of the molded summer
timber draft.
[[Page 51]]
(e) The fresh water timber freeboard shall be computed in accordance
with Sec. 42.20-75(e) (1) or (2) based on the summer timber load
waterline.
[CGFR 68-60, 33 FR 10067, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969; CGD 79-153, 48 FR 38650, Aug. 25, 1983]
Subpart 42.30_Zones, Areas, and Seasonal Periods
Sec. 42.30-1 Basis.
(a) The zones and areas in this subpart are, in general, based on
the following criteria:
(1) Summer: not more than 10 percent winds of force 8 Beaufort (34
knots) or more.
(2) Tropical: not more than 1 percent winds of force 8 Beaufort (34
knots) or more. Not more than one tropical storm in 10 years in an area
of 5[deg] square in any 1 separate calendar month.
(b) In certain special areas, for practical reasons, some degree of
relaxation has been found acceptable.
(c) A chart is attached to the International Convention on Load
Lines, 1966, which illustrates the zones and areas defined in this
Convention and in this subpart.
[CGFR 68-60, 33 FR 10068, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.30-5 Northern Winter Seasonal Zones and area.
(a) North Atlantic Winter Seasonal Zones I and II. (1) The North
Atlantic Winter Seasonal Zone I lies within the meridian of longitude
50[deg] W. from the coast of Greenland to latitude 45[deg] N.; thence
the parallel of latitude 45[deg] N. to longitude 15[deg] W.; thence the
meridian of longitude 15[deg] W. to latitude 60[deg] N.; thence the
parallel of latitude 60[deg] N. to the Greenwich Meridian, thence this
meridian northwards.
(i) Seasonal periods:
Winter: October 16 to April 15.
Summer: April 16 to October 15.
(2) The North Atlantic Winter Seasonal Zone II lies within the
meridian of longitude 68[deg]30[min] W. from the coast of the United
States to latitude 40[deg] N.; thence the rhumb line to the point
latitude 36[deg] N., longitude 73[deg] W.; thence the parallel of
latitude 36[deg] N. to longitude 25[deg] W.; and thence the rhumb line
to Cape Torinana. Excluded from this zone are the North Atlantic Winter
Seasonal Zone I and the Baltic Sea bounded by the parallel of the
latitude of The Skaw in the Skagerrak.
(i) Seasonal periods:
Winter: November 1 to March 31.
Summer: April 1 to October 31.
(b) North Atlantic Winter Seasonal Area. (1) The boundary of the
North Atlantic Winter Seasonal Area is the meridian of longitude
68[deg]30[min] W. from the coast of the United States to latitude
40[deg] N.; thence the rhumb line to the southernmost intersection of
the meridian of longitude 61[deg] W. with the coast of Canada; and
thence the east coasts of Canada and the United States.
(i) Seasonal periods:
(a) For vessels over 328 feet in length:
Winter: December 16 to February 15.
Summer: February 16 to December 15.
(b) For vessels of 328 feet and under in length:
Winter: November 1 to March 31.
Summer: April 1 to October 31.
(c) North Pacific Winter Seasonal Zone. The southern boundary of the
North Pacific Winter Seasonal Zone is the parallel of latitude 50[deg]
N. from the east coast of the Union of Soviet Socialist Republics, to
the west coast of Sakhalin; thence the west coast of Sakhalin to the
southern extremity of Cape Kril'on: thence the rhumb line to Wakkanai,
Hokkaido, Japan; thence the east and south coasts of Hokkaido to
longitude 145[deg] E., thence the meridian of longitude 145[deg] E. to
latitude 35[deg] N., thence the parallel of latitude 35[deg] N. to
longitude 150[deg] W. and thence the rhumb line to the southern
extremity of Dall Island, Alaska.
(1) Seasonal periods:
Winter: October 16 to April 15.
Summer: April 16 to October 15.
[CGFR 68-60, 33 FR 10068, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.30-10 Southern Winter Seasonal Zone.
(a) The northern boundary of the Southern Winter Seasonal Zone is
the
[[Page 52]]
rhumb line from the east coast of the American continent at Cape Tres
Puntas to the point latitude 34[deg] S., longitude 50[deg] W.; thence
the parallel of latitude 34[deg] S. to longitude 17[deg] E.; thence the
rhumb line to the point latitude 35[deg]10[min] S., longitude 20[deg]
E.; thence the rhumb line to the point latitude 34[deg] S. longitude
28[deg] E.; thence along the rhumb line to the point latitude
35[deg]30[min] S., longitude 118[deg] E.; thence the rhumb line to Cape
Grim on the northwest coast of Tasmania; thence along the north and east
coasts of Tasmania to the southernmost point of Bruny Island; thence the
rhumb line to Black Rock Point on Stewart Island; thence the rhumb line
to the point latitude 47[deg] S., longitude 170[deg] E.; thence along
the rhumb line to the point latitude 33[deg] S., longitude 170[deg] W.;
and thence the parallel of latitude 33[deg] S. to the west coast of the
American continent.
(1) Valparaiso is to be considered as being on the boundary line of
the Summer and the Winter Seasonal Zones.
(2) Seasonal periods:
Winter: April 16 to October 15.
Summer: October 16 to April 15.
[CGFR 68-60, 33 FR 10068, July 12, 1968]
Sec. 42.30-15 Tropical Zone.
(a) Northern boundary of the Tropical Zone. The northern boundary of
the Tropical Zone is the parallel of latitude 13[deg] N. from the east
coast of the American continent to longitude 60[deg] W.; thence the
rhumb line to a point in latitude 10[deg] N., longitude 58[deg] W.;
thence the parallel of latitude 10[deg] N. to longitude 20[deg] W.;
thence the meridian of longitude 20[deg] W. to latitude 30[deg] N.;
thence the parallel of latitude 30[deg] N. to the west coast of Africa;
from the east coast of Africa the parallel of latitude 8[deg] N. to
longitude 70[deg] E.; thence the meridian of longitude 70[deg] E. to
latitude 13[deg] N.; thence the parallel of latitude 13[deg] N. to the
west coast of India; thence around the south coast of India to latitude
10[deg]30[min] N. on the east coast of India; thence the rhumb line to a
point in latitude 9[deg] N., longitude 82[deg] E.; thence the meridian
of longitude 82[deg] E. to latitude 8[deg] N.; thence the parallel of
latitude 8[deg] N. to the west coast of Malaysia; thence the coast of
Southeast Asia to the east coast of Vietnam at latitude 10[deg] N.;
thence the parallel of latitude 10[deg] N. to longitude 145[deg] E.;
thence the meridian of longitude 145[deg] E. to latitude 13[deg] N.; and
thence the parallel of latitude 13[deg] N. to the west coast of the
American continent.
(1) Saigon is to be considered as being on the boundary line of the
Tropical Zone and the Seasonal Tropical Area.
(b) Southern boundary of the Tropical Zone. The southern boundary of
the Tropical Zone is the rhumb line from the Port of Santos, Brazil, to
the point where the meridian of longitude 40[deg] W. intersects the
Tropic of Capricorn; thence the Tropic of Capricorn to the west coast of
Africa; from the east coast of Africa the parallel of latitude 20[deg]
S. to the west coast of Madagascar; thence the west and north coasts of
Madagascar to longitude 50[deg] E.; thence the meridian of longitude
50[deg] E. to latitude 10[deg] S.; thence the parallel of latitude
10[deg] S. to longitude 98[deg] E.; thence the rhumb line to Port
Darwin, Australia; thence the coasts of Australia and Wessel Island
eastwards to Cape Wessel; thence the parallel of latitude 11[deg] S. to
the west side of Cape York; from the east side of Cape York the parallel
of latitude 11[deg] S. to longitude 150[deg] W.; thence the rhumb line
to the point latitude 26[deg] S., longitude 75[deg] W.; and thence the
rhumb line to the west coast of the American continent at latitude
30[deg] S.
(1) Coquimbo and Santos are to be considered as being on the
boundary line of the Tropical and Summer Zones.
(c) Areas to be included in the Tropical Zone. The following areas
are to be treated as included in the Tropical Zone:
(1) The Suez Canal, the Red Sea, and the Gulf of Aden, from Port
Said to the meridian of longitude 45[deg] E.
(i) Aden and Berbera are to be considered as being on the boundary
line of the Tropical Zone and the Seasonal Tropical Area.
(2) The Persian Gulf of the meridian of longitude 59[deg] E.
(3) The area bounded by the parallel of latitude 22[deg] S. from the
east coast of Australia to the Great Barrier Reef, thence the Great
Barrier Reef to latitude 11[deg] S. The northern boundary of
[[Page 53]]
the area is the southern boundary of the Tropical Zone.
[CGFR 68-60, 33 FR 10068, July 12, 1968]
Sec. 42.30-20 Seasonal Tropical Areas.
The following are Seasonal Tropical Areas:
(a) In the North Atlantic. It is an area bounded on the north by the
rhumb line from Cape Catoche, Yucatan, to Cape San Antonio, Cuba, the
north coast of Cuba to latitude 20[deg] N., thence the parallel of
latitude 20[deg] N. to longitude 20[deg] W.; on the west by the coast of
the American continent; on the south and east by the northern boundary
of the Tropical Zone.
(1) Seasonal periods:
Tropical: November 1 to July 15.
Summer: July 16 to October 31.
(b) In the Arabian Sea. An area bounded on the west by the coast of
Africa, the meridian of longitude 45[deg] E. in the Gulf of Aden, the
coast of South Arabia and the meridian of longitude 59[deg] E. in the
Gulf of Oman; on the north and east by the coasts of Pakistan and India;
on the south by the northern boundary of the Tropical Zone.
(1) Seasonal periods:
Tropical: September 1 to May 31.
Summer: June 1 to August 31.
(c) In the Bay of Bengal. The Bay of Bengal north of the northern
boundary of the Tropical Zone.
(1) Seasonal periods:
Tropical: December 1 to April 30.
Summer: May 1 to November 30.
(d) In the South Indian Ocean. (1) An area bounded on the north and
west by the southern boundary of the Tropical Zone and the east coast of
Madagascar; on the south by the parallel of latitude 20[deg] S.; on the
east by the rhumb line from a point in latitude 20[deg] S., longitude
50[deg] E., to a point in latitude 15[deg] S., longitude 51[deg]30[min]
E., and thence by the meridian of longitude 51[deg]30[min] E. to
latitude 10[deg] S.
(i) Seasonal periods:
Tropical: April 1 to November 30.
Summer: December 1 to March 31.
(2) An area bounded on the north by the southern boundary of the
Tropical Zone; on the east by the coast of Australia; on the south by
the parallel of latitude 15[deg] S. from longitude 51[deg]30[min] E., to
longitude 120[deg] E. and thence the meridian of longitude 120[deg] E.
to the coast of Australia; on the west by the meridian of longitude
51[deg]30[min] E.
(i) Seasonal periods:
Tropical: May 1 to November 30.
Summer: December 1 to April 30.
(e) In the China Sea. An area bounded on the west and north by the
coasts of Vietnam and China from latitude 10[deg] N. to Hong Kong; on
the east by the rhumb line from Hong Kong to the Port of Sual (Luzon
Island), and the west coasts of the Islands of Luzon, Samar, and Leyte
to latitude 10[deg] N.; on the south by the parallel of latitude 10[deg]
N.
(1) Hong Kong and Sual are to be considered as being on the boundary
of the Seasonal Tropical Area and Summer Zone.
(2) Seasonal periods:
Tropical: January 21 to April 30.
Summer: May 1 to January 20.
(f) In the North Pacific. (1) An area bounded on the north by the
parallel of latitude 25[deg] N.; on the west by the meridian of
longitude 160[deg] E.; on the south by the parallel of latitude 13[deg]
N.; on the east by the meridian of longitude 130[deg] W.
(i) Seasonal periods:
Tropical: April 1 to October 31.
Summer: November 1 to March 31.
(2) An area bounded on the north and east by the west coast of the
American continent; on the west by the meridian of longitude 123[deg] W.
from the coast of the American continent to latitude 33[deg] N.,
longitude 123[deg] W.; to the point latitude 13[deg] N., longitude
105[deg] W.; on the south by the parallel of latitude 13[deg] N.
(i) Seasonal periods:
Tropical: March 1 to June 30, and November 1 to November 30.
Summer: July 1 to October 31, and December 1 to February 28/29.
(g) In the South Pacific. (1) The Gulf of Carpentaria south of
latitude 11[deg] S.
(i) Seasonal periods:
Tropical: April 1 to November 30.
Summer: December 1 to March 31.
(2) An area bounded on the north and east by the southern boundary
of the Tropical Zone; on the south by the
[[Page 54]]
Tropic of Capricorn from the east coast of Australia to longitude
150[deg] W.; thence by the meridian of longitude 150[deg] W. to latitude
20[deg] S. and thence by the parallel of latitude 20[deg] S. to the
point where it intersects the southern boundary of the Tropical Zone; on
the west by the boundaries of the area within the Great Barrier Reef
included in the Tropical Zone, and by the east coast of Australia.
(i) Seasonal periods:
Tropical: April 1 to November 30.
Summer: December 1 to March 31.
[CGFR 68-60, 33 FR 10068, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.30-25 Summer Zones.
(a) The remaining areas constitute the Summer Zones.
(1) However, for vessels of 328 feet and under in length, the area
bounded on the north and west by the east coast of the United States; on
the east by the meridian of longitude 68[deg]30[min] W. from the coast
of the United States to latitude 40[deg] N. and thence by the rhumb line
to the point latitude 36[deg] N., longitude 73[deg] W.; on the south by
the parallel of latitude 36[deg] N.; is a Winter Seasonal Area.
(i) Seasonal periods:
Winter: November 1 to March 31.
Summer: April 1 to October 31.
[CGFR 68-60, 33 FR 10069, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.30-30 Enclosed seas.
(a) Baltic Sea. This sea bounded by the parallel of latitude of The
Skaw in the Skagerrak is included in the Summer Zones.
(1) However, for vessels of 328 feet and under in length, it is a
Winter Seasonal Area.
(i) Seasonal periods:
Winter: November 1 to March 31.
Summer: April 1 to October 31.
(b) Black Sea. This sea is included in the Summer Zones.
(1) However, for vessels of 328 feet and under in length, the area
north of latitude 44[deg] N. is a Winter Seasonal Area.
(i) Seasonal periods:
Winter: December 1 to February 28/29.
Summer: March 1 to November 30.
(c) Mediterranean. This sea is included in the Summer Zones.
(1) However, for vessels of 328 feet and under in length, the area
bounded on the north and west by the coasts of France and Spain and the
meridian of longitude 3[deg] E. from the coast of Spain to latitude
40[deg] N.; on the south by the parallel of latitude 40[deg] N. from
longitude 3[deg] E. to the west coast of Sardinia; on the east by the
west and north coasts of Sardinia from latitude 40[deg] N. to longitude
9[deg] E., thence by the meridian of longitude 9[deg] E. to the south
coast of Corsica, thence by the west and north coasts of Corsica to
longitude 9[deg] E. and thence by the rhumb line to Cape Sicie; is a
Winter Seasonal Area.
(i) Seasonal periods:
Winter: December 16 to March 15.
Summer: March 16 to December 15.
(d) Sea of Japan. This sea south of the parallel of latitude 50[deg]
N. is included in the Summer Zones.
(1) However, for vessels of 382 feet and under in length, the area
between the parallel of latitude 50[deg] N. and the rhumb line from the
east coast of Korea at latitude 38[deg] N. to the west coast of
Hokkaido, Japan, at latitude 43[deg]12[min] N., is a Winter Seasonal
Area.
(i) Seasonal periods:
Winter: December 1 to February 28/29.
Summer: March 1 to November 30.
[CGFR 68-60, 33 FR 10069, July 12, 1968, as amended by CGFR 68-126, 34
FR 9016, June 5, 1969]
Sec. 42.30-35 The Winter North Atlantic Load Line.
(a) The part of the North Atlantic referred to in Sec. 42.20-
75(d)(1) comprises:
(1) That part of the North Atlantic Winter Seasonal Zone II which
lies between the meridians of 15[deg] W. and 50[deg] W.; and
(2) The whole of the North Atlantic Winter Seasonal Zone I, the
Shetland Islands to be considered as being on the boundary.
[CGFR 68-60, 33 FR 10069, July 12, 1968]
[[Page 55]]
Subpart 42.50_Load Line Certificates_Model Forms
Sec. 42.50-1 General.
(a) The provisions of this subpart set forth the requirements for
the text of the various load line certificates issued to vessels
complying with the applicable requirements in this part. See Sec. Sec.
42.07-35 and 42.07-40 for requirements regarding load line assigning and
issuing authorities. See Sec. 42.07-45 for requirements regarding load
line certificates, their text and arrangement.
(b) The 1966 international load line certificate and exemption
certificate shall be the same as set forth in this subpart in the model
Forms A1, A2, A3, and E1, except for the following authorized variations
which shall also apply to model Forms B, C1, C2, and C3:
(1) As indicated in Sec. 42.13-30, the freeboards and load line
marks which are not applicable to a specific vessel need not be entered
on the certificate issued.
(2) The provisions of Note 3 on the front of the certificate forms
(other than Model E1) may be changed to correctly describe the situation
applicable to the vessel concerning information and instructions
furnished the master about loading and ballasting the vessel to provide
a guide as to stability under various conditions and as to avoid
unacceptable stresses in the vessel's structure.
(c) In the load line certificate the assigning and issuing authority
shall set forth its full official designation; i.e., its legal name,
address of home office, and reference to the authorization from the
Commandant where an assigning and issuing authority other than the
American Bureau of Shipping is designated.
[CGFR 68-126, 34 FR 9017, June 5, 1969]
Sec. 42.50-5 International load line certificates.
(a) The various forms of certificates certifying to the correctness
of the load line marks assigned under the regulations in this subchapter
and/or certain exemptions therefrom for U.S.-flag vessels engaged in
foreign voyages, or engaged in coastwise or intercoastal voyages
(provided such vessels qualify to engage in foreign voyages without
restriction), are A1, A2, A3, and E1. The detailed application of these
forms is as specified in Sec. 42.07-45 (e), (f), and (h).
(b) The text and arrangement of the printed portions of Form A1
(printed front and back) are as follows:
International Load Line Certificate (1966)
[Form A1]
(Official seal of issuing authority.)
(Certificate No. ______)
Issued under the provisions of the International Convention on Load
Lines, 1966, under the authority of the Government of the United States
of America, and the Commandant, U.S. Coast Guard:
By
(Insert full official designation of issuing authority)
________________________________________________________________________
and duly authorized for assigning purposes under the provisions of
the Convention.
Length (L) as defined
Name of ship Official number or Port of registry in Article 2(8) i.e.,
distinctive letters 46 CFR 42.13-15
Freeboard assigned as: \1\ A new ship............. Type of ship: \1\ Type ``A''.
An existing ship....... Type ``B''.
Type ``B'' with reduced
freeboard.
Type ``B'' with
increased freeboard.
FREEBOARD FROM DECK LINE LOAD LINE
Tropical............................. ____ (inches).......... (T).................... ____ (inches) above
(S).
Summer............................... ____ (inches).......... (S).................... Upper edge of line at
level of center of
ring.
Winter............................... ____ (inches).......... (W).................... ____ (inches) below
(S).
[[Page 56]]
Winter (North Atlantic).............. ____ (inches).......... (WNA).................. ____ (inches) below
(S).
Allowance for fresh water for all freeboards........................................... ____ (inches).
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ____ deck at side;
i.e., freeboard \1\ deck.
[GRAPHIC] [TIFF OMITTED] TC01FE91.004
Date of initial or periodical survey ________________
This is to certify that this ship has been surveyed and that the
freeboards have been assigned and load lines shown above have been
marked in accordance with the International Convention on Load Lines,
1966.
This certificate is valid until ________,\2\ subject to annual
surveys in accordance with Article 14(1)(c) of the Convention, and
endorsement thereof on the reverse side of the certificate.
Issued at __________________ (Place of issue of certificate),
____________________, 19____ (Date of issue)
________________________________________________________________________
(Signature of official issuing the certificate)
[Seal of issuing
authority]
The undersigned declares that he is duly authorized by the said
Government to issue this certificate.
(Signature)
notes
1. When a ship departs from a port situated on a river or inland
waters, deeper loading shall be permitted corresponding to the weight of
fuel and all other materials required for consumption between the point
of departure and the sea.
2. When a ship is in fresh water of unit density, the appropriate
load line may be submerged by the amount of the fresh water allowance
shown above. Where the density is other than unity, an allowance shall
be made proportional to the difference between 1.025 and the actual
density.
3. It is the owner's responsibility to furnish the master with
information and instructions for loading and ballasting this vessel to
provide guidance as to stability of the vessel under varying conditions
of service and to avoid unacceptable stresses in the vessel's structure.
\1\ The issuing authority is authorized to delete or change words
whenever it is inapplicable to a specific vessel and to arrange wording
so appropriate word insertions may be made, which accurately describe
the facts.
\2\ At the expiration of this certificate, applicable reissuance
should be obtained in accordance with the Load Line Regulations.
(Reverse Side of Certificate)
annual surveys
This is to certify that at an annual survey required by Article
14(1)(c) of the Convention, this ship was found to comply with the
relevant provisions of the Convention.
Place................................. Date
(Signature and seal of issuing authority)
Place................................. Date
[[Page 57]]
(Signature and seal of issuing authority)
Place................................. Date
(Signature and seal of issuing authority)
Place................................. Date
(Signature and seal of issuing authority)
extension of load line certificate
The provisions of the Convention being fully complied with by this ship,
the validity of this certificate is, in accordance with Article 19(2) of
the Convention, extended until.
Place................................. Date
(Signature and seal of issuing authority)
notes
4. The Winter North Atlantic Load Line applies only to vessels of
328 feet in length or less, which enter any part of the North Atlantic
Ocean during the winter months as defined by the Load Line Regulations
in 46 CFR 42.30-5 and 42.30-35. The periods during which the other
seasonal load lines apply in different parts of the world are as stated
in the Load Line Regulations in 46 CFR 42.30-5 to 42.30-30, inclusive.
5. The Load Line Certificate will be canceled by the Commandant,
U.S. Coast Guard, if:
(a) The annual surveys have not been carried out within 3 months
either way of each anniversary of the certificate date.
(b) The certificate is not endorsed to show that the ship has been
surveyed as indicated in (a).
(c) Material alterations have been made to the hull or
superstructure of the vessel, such as would necessitate the assignment
of an increased freeboard.
(d) The fittings and appliances for the protection of the openings,
guardrails, freeing ports, or the means of access to the crew's quarters
have not been maintained in as effective a condition as they were when
the certificate was issued.
(e) The structural strength of the ship is lowered to such an extent
that the ship is unsafe.
6. When this certificate has expired or has been canceled, it must
be delivered to the issuing authority.
________________________________________________________________________
(c) The text and arrangement of the printed portion of Form A2 shall
be identical with the information on the face and reverse sides of Form
A1 certificate in paragraph (b) of this section except for the
identification of model form, description of the ``Freeboard from deck
line,'' the ``Load Line,'' and the illustration of load line marks,
which shall be as follows:
International Load Line Certificate (1966)
[Form A2]
* * * * * * *
FREEBOARD FROM DECK
LINE LOAD LINE
Tropical
Summer.............................. ____ (inches).......... ....................... Upper edge of line at
level of center of
ring.
Winter
Winter--North Atlantic.............. ____ (inches).......... (WNA).................. Upper edge of line ____
(inches) below upper
edge at level of center
of ring.
Allowance for fresh water for all freeboards........................................ ____ (inches).
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ________ deck at
side; i.e., freeboard \1\ deck.
[[Page 58]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.005
* * * * * * *
\1\ The issuing authority is authorized to delete or change words
whenever it is inapplicable to a specific vessel and to arrange wording
so appropriate word insertions may be made, which accurately describe
the facts.
________________________________________________________________________
(d) The text and arrangement of the printed portion of Form A3 shall
be identical with the information on the face and reverse sides of Form
A1 certificate in paragraph (b) of this section except for the
identification of model form, description of the ``Freeboard from deck
line,'' the ``Load Line,'' and the illustration of load line marks,
which shall be as follows:
International Load Line Certificate (1966)
[Form A3]
* * * * * * *
The timber freeboards given in this certificate are applicable only
when this ship carries a timber deck cargo and complies with special
requirements of the Load Line Regulations regarding timber deck cargoes.
FREEBOARD FROM DECK
LINE LOAD LINE
Tropical............................. ____ (inches).......... (T).................... ____ (inches) above
(S).
Summer............................... ____ (inches).......... (S).................... Upper edge of line at
level of center of
ring.
Winter............................... ____ (inches).......... (W).................... ____ (inches) below
(S).
Winter--North Atlantic............... ____ (inches).......... (WNA).................. ____ (inches) below (S)
Timber--tropical..................... ____ (inches).......... (LT)................... ____ (inches) above
(LS).
Timber--summer....................... ____ (inches).......... (LS)................... ____ (inches) above
(S).
Timber--winter....................... ____ (inches).......... (LW)................... ____ (inches) below
(LS).
Timber--winter--North Atlantic....... ____ (inches).......... (LWNA)................. ____ (inches) below
(LS).
Allowance for fresh water for all freeboards other than timber....................... ____ (inches).
Allowance for fresh water for all timber freeboards.................................. ____ (inches).
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ________ deck at
side; i.e., freeboard \1\ deck.
[[Page 59]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.006
* * * * * * *
\1\ The issuing authority is authorized to delete or change words
whenever it is inapplicable to a specific vessel and to arrange wording
so appropriate word insertions may be made, which accurately describe
the facts.
________________________________________________________________________
(e) The text and arrangement of the printed portions of Form E1 are
as follows:
International Load Line Exemption Certificate
[Form E1]
(Official seal of issuing authority.)
(Certificate No. ____)
Issued under the provisions of the International Convention on Load
Lines, 1966, under the authority of the Government of the United States
of America, and the Commandant U.S. Coast Guard:
By______________________________________________________________________
(Insert full official designation of issuing authority)
and duly authorized for assigning and exemption purposes under the
provisions of the Convention.
Official numbers of
Name of ship distinctive letters Port of registry
This is to certify that the above-mentioned ship is exempted from
the provisions of the 1966 Convention, under the authority conferred by
Article 6(2),\1\ Article 6(4),\1\ of the Convention referred to above
and that this ship has been surveyed accordingly.
The provisions of the Convention from which the ship is exempted
under Article 6(2) are:
The voyage for which exemption is granted under Article 6(4) is:
From:___________________________________________________________________
To:_____________________________________________________________________
Conditions, if any, on which the exemption is granted under either
Article 6(2) or Article 6(4):
This certificate is valid until ________,\2\ subject, where
appropriate, to annual surveys in accordance with Article 14(1)(c) of
the Convention, and endorsement thereof on the reverse side of the
certificate.
[[Page 60]]
Issued at
(Place of issue of certificate)
(Date of issue)
(Signature of official issuing the certificate)
[Seal of issuing
authority]
The undersigned declares that he is duly authorized by the said
Government to issue this certificate.
(Signature)
\1\ The issuing authority is authorized to delete whichever
reference is inapplicable.
\2\ At the expiration of this certificate, applicable reissuance
should be obtained in accordance with the Load Line Regulations, if
permitted.
(Reverse side of exemption certificate)
annual surveys
This is to certify that this ship continues to comply with the
conditions under which this exemption was granted.
Place................................... Date
(Signature and seal of issuing authority)
Place................................. Date
(Signature and seal of issuing authority)
Place................................. Date
(Signature and seal of issuing authority)
Place................................. Date
(Signature and seal of issuing authority)
extension of load line certificate
This ship continues to comply with the conditions under which this
exemption was granted and the validity of this certificate is, in
accordance with Article 19(4)(a) of the Convention, extended until.
Place................................. Date
(Signature and seal of issuing authority)
[CGFR 68-60, 33 FR 10070, July 12, 1968, as amended by CGFR 68-126, 34
FR 9017, June 5, 1969]
Sec. 42.50-10 Load line certificates for nonadherent foreign flag vessels.
(a) The form of load line certificate certifying to the correctness
of the load line marks assigned under the regulations in this subchapter
to nonadherent foreign flag vessels as specified in Sec. 42.07-45(e)(2)
is:
(1) Form B for general use. The period of validity shall be as
expressed in Sec. 42.09-20(c).
(b) The text and arrangement of the printed portion of Form B shall
be identical with the information on the face and reverse sides of Form
A1 certificate in Sec. 42.50-5(b) except for title of certificate,
model form, the first paragraph, and the wording of the certificate for
issuance and revalidation, which shall be as follows:
[[Page 61]]
Load Line Certificate
(Form B)
(Official seal of issuing authority.)
(Certificate No. ____)
Issued under the authority of the Commandant, U.S. Coast Guard,
United States of America, under the provisions of the Load Line Act of
March 2, 1929, as amended (46 U.S.C. 85-85g), and the Load Line
Regulations in 46 CFR part 42:
By______________________________________________________________________
(Insert full official designation of issuing authority)
and duly authorized for assigning purposes under the provisions of
the Load Line Act of March 2, 1929, as amended.
* * * * * * *
This is to certify that this ship has been surveyed and the
freeboards have been assigned and load lines shown above have been
marked upon the vessel in manner and location as required by the Load
Line Regulations of the Commandant, U.S. Coast Guard, in 46 CFR part 42.
This certificate remains in force until ________,\2\ subject to
annual revalidation in accordance with the Load Line Regulations, and
endorsement thereof on the reverse side of this certificate.
Issued at ________________________ (Place of issue of certificate),
____________________, 19____ (Date of issue)
(Signature of official issuing the certificate)
[Seal of issuing
authority]
* * * * * * *
\2\ Expiration date is not to exceed 5 years from original date of
issue of this certificate. At expiration applicable reissuance of this
certificate should be obtained in accordance with the Load Line
Regulations.
* * * * * * *
(Reverse Side of Certificate)
annual revalidation of certificate
This is to certify that the provisions of the Load Line Regulations
of the Commandant, U.S. Coast Guard, are fully complied with by the
condition of this ship on the dates indicated, and in each case this
certificate is revalidated for a 1 year interval as follows:
(1) Until..................
Place...................... Date...........
(Signature and seal
of issuing
authority)
(1) Until..................
Place...................... Date...........
(Signature and seal
of issuing
authority)
(1) Until..................
Place...................... Date...........
(Signature and seal
of issuing
authority)
(1) Until..................
Place...................... Date...........
(Signature and seal
of issuing
authority)
[CGFR 68-126, 34 FR 9017, June 5, 1969]
[[Page 62]]
Sec. 42.50-15 Coastwise load line certificates for U.S.-flag vessels.
(a) The forms of the coastwise load line certificate, other than for
special service which are provided for in part 44 of this subchapter,
certifying to the correctness of the load line marks assigned under the
regulations in this part are C1, C2 and C3. The detailed application of
these forms is as specified in Sec. 42.07-45(e).
(b) Space shall be provided on the face of each of the coastwise
load line certificates so that there may be entered thereon a record of
the restrictions applicable to the vessel, if any.
(c) The text and arrangement of the printed portions of Form C1 are
as follows:
Coastwise Load Line Certificate
[Form C1]
(Official seal of issuing authority.)
(Certificate No. ____)
Issued under the authority of the Commandant, U.S. Coast Guard,
under the provisions of the Coastwise Load Line Act, 1935, as amended
(46 U.S.C. 88-88g), and the Load Line Regulations in 46 CFR part 42:
By______________________________________________________________________
(Insert full official designation of issuing authority)
and duly authorized for assigning purposes under the provisions of
this law for vessels engaging in coastwise and/or intercoastal voyages.
Official number or Length (L) as defined
Name of ship distinctive letters Port or registry in 46 CFR 42.13-15
Freeboard assigned as: \1\........... A new ship............. Type of ship: \1\...... Type ``A''.
An existing ship....... Type ``B''.
Type ``B'' with reduced
freeboard.
Type ``B'' with
increased freeboard.
freeboard from deck load line
line
Tropical............................. ____ (inches).......... (T).................... ____ (inches) above
(S).
Summer............................... ____ (inches).......... (S).................... ____ Upper edge of line
at level of center of
ring.
Winter............................... ____ (inches).......... (W).................... ____ (inches) below
(S).
Allowance for fresh water for all freeboards......................................... ____ (inches)
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ________ deck at
side; i.e., freeboard \1\ deck.
[GRAPHIC] [TIFF OMITTED] TC01FE91.007
* * * * * * *
Date of initial or periodical survey____________________________________
The following is a record of the restrictions applicable to the
above named ship:
[[Page 63]]
(List restrictions. If none, insert ``None.'')
This is to certify that this ship has been surveyed and that the
freeboards have been assigned and load lines shown above have been
marked in accordance with the Commandant, U.S. Coast Guard, Coastwise
Load Line Regulations in 46 CFR parts 42 to 46, inclusive as applicable.
This certificate remains in force until ________,\2\ subject to
annual surveys in accordance with applicable Load Line Regulations, and
endorsement thereof on the reverse side of the certificate.
Issued at_______________________________________________________________
(Place of issue of certificate) (Date of issue)
By
(Signature of official issuing the certificate)
[Seal of issuing authority]
notes
1. When a ship departs from a port situated on a river or inland
waters, deeper loading shall be permitted corresponding to the weight of
fuel and all other materials required for consumption between the point
of departure and the sea.
2. When a ship is in fresh water of unit density the appropriate
load line may be submerged by the amount of the fresh water allowance
shown above. Where the density is other than unity, an allowance shall
be made proportional to the difference between 1.025 and the actual
density.
3. It is the owner's responsibility to furnish the master with
information and instructions for loading and ballasting this vessel to
provide guidance as to stability of the vessel under varying conditions
of service and to avoid unacceptable stresses in the vessel's structure.
\1\ The issuing authority is authorized to delete or change words
inapplicable to a specific vessel and to arrange wording so appropriate
word insertions may be made, which accurately describe the facts.
\2\ At the expiration of this certificate, applicable reissuance
should be obtained in accordance with the Load Line Regulations.
(Reverse side of Coastwise Load Line Certificate)
annual surveys
This is to certify that this ship has been surveyed on the dates
indicated to determine in each case whether this certificate should
remain in force for an additional 1 year and the survey has been
completed to my satisfaction.
(1)............................
Signature of Surveyor Place Date
(2)............................
Signature of Surveyor Place Date
(3)............................
Signature of Surveyor Place Date
(4)............................
Signature of Surveyor Place Date
extension of load line certificate
The provisions of the Coastwise Load Line Regulations of the
Commandant, U.S. Coast Guard, being fully complied with by this ship,
this certificate is extended under the authority of 46 CFR 42.07-45 and
42.09-15 until.
Place........................... Date....... .......................
........... .......................
(Name of issuing authority and signature of Surveyor)
[[Page 64]]
notes
4. The periods and areas during which the seasonal load lines apply
are as stated in the Load Line Regulations in 46 CFR subpart 42.30, as
appropriate.
5. This Coastwise Load Line Certificate will be canceled by the
Commandant, U.S. Coast Guard, if:
(a) The annual surveys have not been carried out within three months
either way of each anniversary of the certificate date.
(b) The certificate is not endorsed to show that the ship has been
surveyed as indicated in (a).
(c) Material alterations have been made to the hull or
superstructure of the vessel, such as would necessitate the assignment
of an increased freeboard.
(d) The fittings and appliances for the protection of the openings,
guardrails, freeing ports, or the means of access to the crew's quarters
have not been maintained in as effective a condition as they were when
the certificate was issued.
(e) The structural strength of the ship is lowered to such an extent
that the ship is unsafe.
6. When this certificate has expired or has been canceled, it must
be delivered to the issuing authority.
* * * * * * *
________________________________________________________________________
(d) The text and arrangement of the printed portion of Form C2 shall
be identical with the information on the face and reverse sides of Form
C1 certificate in paragraph (c) of this section except for the
identification of model form, description of the ``Freeboard from deck
line'', the ``Load Line'', and the illustration of load line marks,
which shall be as follows:
Coastwise Load Line Certificate
[Form C2]
* * * * * * *
freeboard from deck
line load line
Tropical...................... ____ (inches)......... Upper edge of
Summer....................... ......do.............. line at level
Winter....................... ......do.............. center of ring.
Do.
Allowance for fresh water for all freeboards........ ____ (inches).
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ________ deck at
side; i.e., freeboard \1\ deck.
[GRAPHIC] [TIFF OMITTED] TC01FE91.008
* * * * * * *
(e) The text and arrangement of the printed portion of Form C3 shall
be identical with the information on the face and reverse sides of Form
C1 certificate in paragraph (c) of this section except for the
identification of model form, description of the ``Freeboard from deck
line,'' the ``Load Line,'' and the illustration of load line marks,
which shall be as follows:
[[Page 65]]
Coastwise Load Line Certificate
[Form C3]
* * * * * * *
The timber freeboards given in this certificate are applicable only
when this ship carries a timber deck cargo and complies with the special
requirements of the Load Line Regulations regarding timber deck cargoes.
freeboard from deck
line load line load line
Tropical............................. ____ (inches).......... (T).................... ____ (inches) above
(S).
Summer............................... ____ (inches).......... (S).................... Upper edge of line at
level of center of
ring.
Winter............................... ____ (inches).......... (W).................... ____ (inches) below
(S).
Timber--tropical..................... ____ (inches).......... (LT)................... ____ (inches) above
(LS).
Timber--summer....................... ____ (inches).......... (LS)................... ____ (inches) above
(S).
Timber--winter....................... ____ (inches).......... (LW)................... ____ (inches) below
(LS).
Allowance for fresh water for all freeboards other than timber....................... ____ (inches).
Allowance for fresh water for all timber freeboards.................................. ____ (inches).
(All measurements are to upper edge of the respective horizontal lines)
The upper edge of the deck line from which these freeboards are
measured is ____ inches above or below the top of the ________ deck at
side; i.e., freeboard \1\ deck.
[GRAPHIC] [TIFF OMITTED] TC01FE91.009
* * * * * * *
\1\ The issuing authority is authorized to delete or change words
inapplicable to a specific vessel and to arrange wording so appropriate
word insertions may be made, which accurately describe the facts.
[CGFR 68-60, 33 FR 10073, July 12, 1968, as amended by CGFR 68-126, 34
FR 9018, June 5, 1969; USCG-2014-0688, 79 FR 58280, Sept. 29, 2014]
PART 43 [RESERVED]
PART 44_SPECIAL SERVICE LIMITED DOMESTIC VOYAGES--Table of Contents
Subpart A_Administration
Sec.
44.01-1 Establishment of load lines for special services.
44.01-5 Administration; special service.
44.01-10 Approval by Commandant, U.S. Coast Guard, of special service.
44.01-11 Assignment and marking load lines; special service.
44.01-12 Voyage limits; special service.
44.01-13 Heavy weather plan.
44.01-15 Special service certificate.
44.01-20 New and existing vessels; special service.
Subpart B_Rules for Assigning Special Service Load Lines
44.05-1 General.
44.05-5 Definitions.
44.05-10 Load line markings.
44.05-15 Existing vessels.
44.05-20 Conditions of assignment.
44.05-25 Freeboards.
44.05-30 Load line certificate.
44.05-35 Form of load line certificate.
Subpart C_Rules for Assigning Working Freeboards to Hopper Dredges
44.300 Applicability.
44.310 Definitions.
44.320 Submission of plans and calculations.
44.330 Obtaining working freeboards for hopper dredges.
44.340 Operating restrictions.
[[Page 66]]
Authority: 46 U.S.C. 5101-5116; Department of Homeland Security
Delegation No. 0170.1.
Source: CGFR 65-50, 30 FR 16755, Dec. 30, 1965, unless otherwise
noted.
Subpart A_Administration
Sec. 44.01-1 Establishment of load lines for special services.
(a) Load lines are established for steam colliers, tugs, barges, and
self-propelled barges engaged in special services in conformity with
regulations in this part.
(b) Load lines for steam colliers, barges, and self-propelled barges
engaged on specially limited coastwise voyages as described in Sec.
44.01-12 shall be established pursuant to the regulations in this part.
(c) Variance for tugs is not permitted.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by USCG-1998-4442,
63 FR 52190, Sept. 30, 1998]
Sec. 44.01-5 Administration; special service.
(a) The administrative provisions of Sec. Sec. 42.01-1 to 42.11-20
inclusive of this subchapter, relating to vessels engaged in foreign and
coastwise voyages, where applicable, shall apply to vessels subject to
this part except as modified in paragraph (b) of this section.
(b) Application for the assignment of load lines under this part for
the types of vessels described in Sec. 44.01-1 shall be made in writing
to the American Bureau of Shipping unless another society has been
specifically approved by the Commandant as a load line assigning
authority. In the latter case application shall be made to the society
so approved. Applications shall state the following information:
(1) Name of vessel and official number.
(2) Type of vessel (steam collier, barge, or self-propelled barge).
(3) Date keel was laid.
(4) Normal sea speed of vessel.
(5) Limits of voyage for which approval is requested.
(6) Normal maximum distance offshore in course of voyage.
(7) Length of voyage in days and nautical miles.
(8) Statement of weather conditions to be expected.
(9) Cargo to be carried.
(10) Whether vessel is to be operated manned or unmanned.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10076, July 12, 1968]
Sec. 44.01-10 Approval by Commandant, U.S. Coast Guard, of special service.
(a) Subject to the conditions contained in this part, the
Commandant, U.S. Coast Guard, has determined that load lines at variance
from the position fixed by the International Convention on Load Lines,
1966, but not above the actual line of safety, may be assigned steam
colliers, barges, or self-propelled barges (separately by class) for
certain specifically limited coastwise voyages between ports of the
continental United States or between islands of a group over which the
United States has jurisdiction.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10076, July 12, 1968]
Sec. 44.01-11 Assignment and marking load lines; special service.
(a) The assignment and marking of special service load lines and
certifications thereof shall be in accordance with this part to the
satisfaction of the American Bureau of Shipping. The load line
certificate shall define the voyage limits and seasonal restrictions
governing the validity of the load lines.
Sec. 44.01-12 Voyage limits; special service.
(a) Special service load lines may be assigned for operation not
more than a specified limited distance offshore which shall not exceed
20 nautical miles. The offshore distance shall be measured from the
coastline except where a line of inland waters has been otherwise
established.
(b) For continental United States ports, special service load lines
may be issued for operation between but not to exceed the extreme port
limits specified below, or for operation between intermediate ports
within the extreme limits specified:
[[Page 67]]
(1) Central and Northern Atlantic Coast--From Norfolk, Virginia, to
Eastport, Maine.
(2) Southeast Atlantic Coast--from Key West, Florida, to
Jacksonville, Florida, except that the special service load line is not
valid for manned vessels during the hurricane season, i.e., July 1st to
November 15th, both dates inclusive, unless the vessel is operated in
accordance with a Coast Guard approved heavy weather plan.
(3) Gulf of Mexico Coast--from the mouth of the Rio Grande River,
Texas, to Key West, Florida, except that the special service load line
is not valid for manned vessels during the hurricane season, i.e., July
1st to November 15th, both dates inclusive, unless the vessel is
operated in accordance with a Coast Guard approved heavy weather plan.
(4) Pacific Coast--From San Francisco, California, to San Diego,
California.
(c) Assignment of special service load lines for voyage limits
between the islands of a group over which the United States has
jurisdiction shall be made only upon authorization by the Commandant,
U.S. Coast Guard, after submittal to him of the information called for
by Sec. 44.01-5(b).
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGD 79-142, 45 FR
57402, Aug. 28, 1980]
Sec. 44.01-13 Heavy weather plan.
(a) Each heavy weather plan under Sec. 44.01-12(b) must be prepared
by the vessel owner or operator and approved by the cognizant Officer in
Charge, Marine Inspection. Approval of a heavy weather plan is limited
to the current hurricane season.
(b) The cognizant Officer in Charge, Marine Inspection, is--
(1) The Officer in Charge, Marine Inspection, within whose area the
work site is located for a vessel that will be operating in a limited
geographical area; or
(2) The Officer in Charge, Marine Inspection, within whose area the
point of departure is located for a transiting vessel.
(c) The required content of the heavy weather plan is determined on
a case-by-case basis by the cognizant Officer in Charge, Marine
Inspection, based on knowledge of the local conditions. The heavy
weather plan may contain weather radio frequencies and time schedules
for seeking a harbor of safe refuge. A single heavy weather plan may be
accepted for more than one vessel operating at a single work site or on
a single route.
(d) The vessel owner or operator must place a copy of the heavy
weather plan on each vessel to which it applies and ensure that it
remains there throughout the hurricane season.
[CGD 79-142, 45 FR 57402, Aug. 28, 1980]
Sec. 44.01-15 Special service certificate.
(a) The use of the special service load line certificate issued
under this part is limited to voyages only as described in the
certificate. If the vessel engages on any voyage not contemplated by the
certificate where a load line is required, the load line prescribed by
part 42 of this subchapter shall govern.
(b) Vessels engaged on special services in the coastwise trade and
the interisland trade will be certificated on the form shown in Sec.
44.05-35.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10076, July 12, 1968]
Sec. 44.01-20 New and existing vessels; special service.
(a) A new vessel marked with load lines for special service on a
coastwise or inter-island voyage is a vessel whose keel was laid on or
after September 28, 1937. An existing vessel is one whose keel was laid
before that date.
Subpart B_Rules for Assigning Special Service Load Lines
Sec. 44.05-1 General.
(a) The load line regulations in this part are complementary to
those in part 42 or part 45 (Great Lakes load line regulations) of this
subchapter, as reference is made thereto.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10076, July 12, 1968]
Sec. 44.05-5 Definitions.
(a) A steam collier is a vessel mechanically propelled, and
specially designed for the carriage of coal in bulk.
[[Page 68]]
(b) A towed barge is a vessel without sufficient means of self-
propulsion and which requires to be towed.
(c) A self-propelled barge is a vessel mechanically propelled of the
type specially designed for use in limited coastwise and Great Lakes
service and capable of transiting interconnecting canals.
Sec. 44.05-10 Load line markings.
(a) The load line marks on the vessel's sides must be in accordance
with Sec. 42.13-25(a) of this subchapter, except seasonal markings such
as ``Winter North Atlantic'' which are not applicable to the voyage are
omitted.
(b) In the case of vessels which engage in special services on
coastwise voyages and voyages on the Great Lakes, the marks on the
vessel's sides are to be in accordance with Figure 44.05-10(b), except
that the lines marked ``SW'' and ``MS'' shall be used only where
applicable.
[GRAPHIC] [TIFF OMITTED] TC01FE91.010
Figure 44.05-10(b)
(c) The load lines aft of the combined disk and diamond will be
applicable for voyages on the Great Lakes and those on the forward side
will be applicable to limited coastwise voyages. The summer line on the
ocean will correspond to the summer line on the Lakes and the winter
line on the ocean will correspond to the intermediate line on the Lakes.
(d) In the case of vessels which operate both on special service
coastwise voyages and on unlimited coastwise voyages, the marks on the
ship's sides are to be in accordance with figure 44.05-10 (d). The load
lines aft of the disk will be applicable to voyages in special service
coastwise or inter-island voyages and those on the forward side will be
applicable to unlimited coastwise voyages. (A vessel marked for both
special service and unlimited coastwise voyages and furnished with a
load line certificate on the international form shall, when entering the
foreign trade, arrange that the load line markings are in accord with
the vessel's international load line certificate by the elimination of
the marks aft of the disk.)
[GRAPHIC] [TIFF OMITTED] TC01FE91.011
Figure 45.05-10(d)
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGD 80-120, 47 FR
5723, Feb. 8, 1982; USCG-2004-18884, 69 FR 58345, Sept. 30, 2004]
Sec. 44.05-15 Existing vessels.
(a) In assigning load lines to an existing vessel the provisions of
the regulations in this part shall be complied with in principle and
detail insofar as is reasonable and practicable, having regard to the
proven efficacy of existing arrangements for a special service voyage,
and having particular regard to the provision of sufficient means for
the protection and safety of the crew.
(b) Where it is neither reasonable nor practicable to comply with
this part in its entirety, the assigning authority will, in each case,
report to the Commandant, U.S. Coast Guard, the specific matters in
which the vessel is deficient with such recommendations as may seem
desirable. Upon the receipt of this report the Commandant, U.S. Coast
Guard, shall determine such addition to the freeboard as will, in the
judgment of the Commandant, U.S.
[[Page 69]]
Coast Guard, make the vessel as safe as if it had fully complied with
this part.
Sec. 44.05-20 Conditions of assignment.
(a) Steam colliers. The conditions of assignment for steam colliers
shall be in accordance with the requirements of part 42 of this
subchapter, except that in the case of steam colliers constructed with
bulwarks, the freeing port may be of a practically continuous slot type,
located as low as possible, the clear area of the slot to be not less
than 20 percent of the superficial area of the unpierced bulwarks. If,
due to sheer, or other conditions, the assigning authority considers
that extra local provision should be made for freeing decks of water,
the slots are to be located so as to have maximum efficacy.
(b) Towed barges. The conditions of assignment for towed cargo
barges where the cargo is carried under deck shall be in accordance with
Sec. Sec. 45.10-5 to 45.10-100 of this subchapter. In the case of tank
barges and cargo barges carrying cargo only on deck, compliance will
also be required with the supplementary conditions of Sec. Sec. 45.20-1
to 45.20-70 of this subchapter. In the case of cargo barges of the open
type, assignment will be limited to barges in unmanned operation and the
construction of the vessel must be such as to satisfy the assigning
authority that no unusual hazards will be experienced.
(c) Self-propelled barges. The conditions of assignment for self-
propelled cargo barges carrying cargo under decks shall be in accordance
with the provisions of Sec. Sec. 45.10-5 to 45.10-100 of this
subchapter. In the case of self-propelled tank barges and self-propelled
cargo barges carrying cargo only on deck, compliance will also be
required with the supplementary conditions of Sec. Sec. 45.20-1 to
45.20-70 of this subchapter.
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10076, July 12, 1968]
Sec. 44.05-25 Freeboards.
(a) General. (1) When the assigning authority is satisfied that the
requirements of this part as applicable to the type of vessel under
consideration are complied with the freeboards will be computed as
described in this section.
(2) The requirements in Sec. Sec. 42.09-1 and 42.09-10 that relate
to the assignment of freeboards and to stability are applicable to each
vessel subject to the requirements in this part.
(3) The assigning authority that assigns a vessel subject to the
requirements in this part a freeboard under part 45 of this chapter
shall do so in accordance with the requirements in effect as of October
1, 1972.
(b) Steam colliers. Steam colliers that have constructional features
similar to those of a tanker which afford extra invulnerability against
the sea may be assigned a reduction of freeboard from that determined
under part 42 of this subchapter. The amount of such reduction shall be
determined by the assigning authority, in relation to the freeboard
assigned to tankers, having regard to the degree of compliance with the
supplementary conditions of assignment laid down for these ships, but
without regard to the degree of subdivision provided. The freeboard
assigned to such a vessel shall in no case be less than would be
assigned the vessel as a tanker, as determined under part 42 of this
subchapter.
(c) Towed cargo barges with cargo under deck. The freeboard is to be
computed under Sec. Sec. 45.15-1 to 45.15-97 of this subchapter. The
fresh water and seasonal markings where applicable are to be determined
under part 42 of this subchapter.
(d) Towed cargo barges with cargo only on deck. The freeboard for
barges of this type is to be computed in accordance with the
requirements of Sec. Sec. 45.20-1 to 45.20-70 of this subchapter. The
fresh water and seasonal markings where applicable are to be the same as
determined under part 42 of this subchapter.
(e) Towed cargo barges of the open type. The load line shall be
placed where, in the judgment of the assigning authority, the draft will
be such that no unusual hazard will be experienced. In general, drafts
assigned will be such that the barge will remain afloat with a
reasonable freeboard after flooding of the net available open space.
(f) Towed tank barges. The freeboard is to be computed in accordance
with Sec. Sec. 45.20-1 to 45.20-70 of this subchapter. The fresh water
and seasonal markings
[[Page 70]]
where applicable are to be determined under part 42 of this subchapter.
(g) Self-propelled cargo barges. The freeboard is to be computed
under Sec. Sec. 45.15-1 to 45.20-15 of this subchapter. The fresh water
and seasonal markings where applicable are to be determined under part
42 of this subchapter.
(h) Self-propelled tank barges. The freeboard is to be computed in
accordance with Sec. Sec. 45.20-1 to 45.20-70 of this subchapter. The
fresh water and seasonal markings where applicable are to be determined
under part 42 of this subchapter.
[CGFR 65-50, 30 FR 17655, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR
10077, July 12, 1968; CGD 73-49R, 38 FR 12290, May 10, 1973]
Sec. 44.05-30 Load line certificate.
(a) The load line certificates for a special service coastwise or
special inter-island voyage shall be issued in addition to any other
applicable load line certificates and shall be on the form shown in
Sec. 44.05-35.
Sec. 44.05-35 Form of load line certificate.
(a) Where no other Load Line certificate is issued:
Load Line Certificate for a Special Service Coastwise or Inter-Island
Voyage
Issued under the authority of the Commandant, U.S. Coast Guard,
United States of America, under the provisions of the Coastwise Load
Line Act of August 27, 1935, as amended.
[Seal]
Issued by_______________________________________________________________
Certificate No._________________________________________________________
This certificate is valid only for coastwise or inter-island voyages
that are between the limits of __________ and __________ provided the
vessel is engaged solely in the trade stated herein.
Ship____________________________________________________________________
Official No.____________________________________________________________
Port of registry________________________________________________________
Trade of vessel_________________________________________________________
Gross tonnage___________________________________________________________
Freeboard from deck line Load line
Tropical (T).............................. Above (S).
Summer (S)................................ Upper edge of line through
center of disk.
Winter (W)................................ Below (S).
*Allowance for fresh water for all freeboards (except on the Great
Lakes)__________________________________________________________________
*Where seagoing steamers navigate a river or inland water, deeper
loading is permitted corresponding to the weight of fuel, etc., required
for consumption between the point of departure and the open sea.
---------------------------------------------------------------------------
The upper edge of the deck line from
which these freeboards are measured is__________________________________
inches above the top of the____deck at side.
[GRAPHIC] [TIFF OMITTED] TC01FE91.012
This is to certify that this ship has been surveyed and the
freeboards and load lines shown above have been found to be correctly
marked upon the vessel in manner and location as provided by the Load
Line Regulations of the Commandant, U.S. Coast Guard, applicable to
vessels engaged on this special service voyage.
**This certificate remains in force until __________________. Issued
at __________________on the ________ day of ____________, 19____.
**Upon the expiration of the certificate renewal must be obtained as
provided by the Load Line Regulations and the certificate so endorsed.
Endorsement should also be made in the spaces provided on the occasion
of each annual inspection required by the Load Line Regulations.
(Here follows the signature or seal and description of the assigning
---------------------------------------------------------------------------
authority)
Notes: (1) In accordance with the Load Line Regulations, the disk or
diamond and the lines must be permanently marked by center punch marks
or cutting.
(2) The load line assignment given by this certificate necessarily
assumes that the nature and stowage of cargo, ballast, etc., are such as
to secure sufficient stability for the vessel. Accordingly, it is the
owner's responsibility to furnish the Master of the vessel with
stability information and instructions when this is necessary to
maintenance of sufficient stability.
(On the reverse side of the load line certificate, the provision for
annual inspection endorsement and for renewal of the certificate is to
be the same as for vessels engaged in the foreign trade.)
(b) Where the Special Service Load Line Certificate is issued in
addition to
[[Page 71]]
a Great Lakes Load Line Certificate, the wording of the Special Service
Load Line Certificate is to be identical to that given in paragraph (a)
of this section, but the markings indicated in the form shall be
replaced by the following markings:
[GRAPHIC] [TIFF OMITTED] TC01FE91.013
(c) Where the Special Service Load Line Certificate is issued in
addition to an Unlimited Coastwise or International Load Line
Certificate, the wording of the Special Service Load Line Certificate is
to be identical to that given in paragraph (a) of this section, but the
markings indicated in the form shall be replaced by the following
markings:
[GRAPHIC] [TIFF OMITTED] TC01FE91.014
[CGFR 65-50, 30 FR 16755, Dec. 30, 1965, as amended by USCG-2014-0688,
79 FR 58280, Sept. 29, 2014]
Subpart C_Rules for Assigning Working Freeboards to Hopper Dredges
Source: CGD 76-080, 54 FR 36977, Sept. 6, 1989, unless otherwise
noted.
Sec. 44.300 Applicability.
This subpart applies to each self-propelled hopper dredge--
(a) For which a working freeboard assignment is desired after
January 1, 1990; and
(b) That operates with a working freeboard assigned under this
subpart.
Sec. 44.310 Definitions.
Hopper dredge means a self-propelled dredge with an open hold or
hopper in the hull of the dredge that receives dredged material.
Working freeboard means one-half the distance between the mark of
the load line assigned under this subchapter and the freeboard deck.
Sec. 44.320 Submission of plans and calculations.
To request a working freeboard, calculations, plans, and stability
information necessary to demonstrate compliance with this subpart must
be submitted to the:
(a) Commanding Officer, Marine Safety Center, U.S. Coast Guard, 2703
Martin Luther King Jr. Avenue SE., Washington, DC 20593, for visitors.
Send all mail to Commanding Officer (MSC), Attn: Marine Safety Center,
U.S. Coast Guard Stop 7430, 2703 Martin Luther King Jr. Avenue SE.,
Washington, DC 20593-7430; or
(b) American Bureau of Shipping, ABS Plaza, 16855 Northchase Drive,
Houston, TX 77060.
[CGD 76-080, 54 FR 36977, Sept. 6, 1989, as amended by USCG-1998-4442,
63 FR 52190, Sept. 30, 1998; USCG-2000-7790, 65 FR 58459, Sept. 29,
2000; USCG-2007-29018, 72 FR 53965, Sept. 21, 2007; USCG-2009-0702, 74
FR 49228, Sept. 25, 2009; USCG-2013-0671, 78 FR 60147, Sept. 30, 2013;
USCG-2016-0498, 82 FR 35089, July 28, 2017]
Sec. 44.330 Obtaining working freeboards for hopper dredges.
A hopper dredge may be issued a working freeboard on a limited
service domestic voyage load line certificate or a Great Lakes load line
certificate if the following are met:
(a) The hopper dredge structure must have adequate strength for any
draft up to the working freeboard draft. Dredges built and maintained in
conformity with the requirements of a classification society recognized
by the Commandant usually meet this requirement.
(b) The hopper dredge must--
(1) Meet subpart I of part 174 of this chapter; and
(2) Have on its bridge remote draft indicators that:
[[Page 72]]
(i) Show the fore, aft, and mean draft of the dredge at all times
while the dredge is operating; and
(ii) Have each indicator marked with the assigned freeboard and the
working freeboard.
Sec. 44.340 Operating restrictions.
(a) Each hopper dredge assigned a working freeboard may be operated
at drafts from the normal freeboard to the working freeboard if the--
(1) Seas are not more than 10 feet;
(2) Winds are not more than 35 knots;
(3) Area of operation is not more than 20 nautical miles (37
kilometers) from the mouth of a harbor of safe refuge; and
(4) Specific gravity of the spoil carried is not more than the
highest specific gravity of spoil used in the stability calculations
required by subchapter S of this chapter.
(b) The Assigning Authority designates on the face of the dredge's
load line certificate--
(1) Each restriction contained in paragraph (a)(1) through (a)(3) of
this section; and
(2) The maximum specific gravity of the spoils allowed to be
carried.
PART 45_GREAT LAKES LOAD LINES--Table of Contents
Subpart A_General
Sec.
45.1 Purpose.
45.3 Definitions.
45.5 Seasonal application of load lines.
45.9 Seasonal application of load lines for vessels not marked under
this part.
45.11 Issue of load line certificate.
45.13 Form of certificate.
45.15 Exemptions.
Subpart B_Load Line Marks
45.31 Deck line.
45.33 Diamond.
45.35 Seasonal load lines.
45.37 Salt water load lines.
45.39 Marking.
Subpart C_Freeboards
45.51 Types of ships.
45.53 Summer freeboard.
45.55 Freeboard coefficient.
45.57 Correction: Position of deckline.
45.58 Correction: Short superstructure.
45.59 Definitions for superstructure corrections.
45.61 Correction for superstructures and trunks.
45.63 Correction for sheer.
45.65 Excess sheer limitations.
45.67 Sheer measurement.
45.69 Correction for bow height.
45.71 Midsummer freeboard.
45.73 Winter freeboard.
45.75 Intermediate freeboard.
45.77 Salt water freeboard.
Subpart D_Conditions of Assignment
45.101 Purpose.
45.103 Structural stress and stability.
45.105 Information supplied to the master.
45.107 Strength of hull.
45.109 Strength of superstructures and deckhouses.
45.111 Strength of bulkheads at ends of superstructures.
45.113 Access openings in bulkheads at ends of enclosed superstructures.
45.115 Bulwarks and guardrails.
45.117 Freeing port area: General.
45.119 Freeing port area; Changes from standard sheer.
45.121 Freeing port area: Changes for trunks and side coamings.
45.123 Freeing port area: Changes for bulwark height.
45.125 Crew passageways.
45.127 Position of structures, openings, and fittings.
45.129 Hull fittings: General.
45.131 Ventilators.
45.133 Air pipes.
45.135 Hull openings at or below freeboard deck.
45.137 Cargo ports.
45.139 Side scuttles.
45.141 Manholes and flush scuttles.
45.143 Hull openings above freeboard deck.
45.145 Hatchway covers.
45.147 Hatchway coamings.
45.149 Machinery space openings.
45.151 Other openings.
45.153 Through-hull piping: General.
45.155 Inlets and discharge piping: Valves.
45.157 Scuppers and gravity drains.
45.159 Special conditions of assignment for type A vessels.
Subpart E_Unmanned River Barges on Lake Michigan Routes
45.171 Purpose.
45.173 Eligible barges.
45.175 Applicable routes.
45.177 Freeboard requirements.
45.179 Cargo limitations.
45.181 Load line exemption requirements for the Burns Harbor and
Milwaukee routes.
45.183 Load line requirements for the St. Joseph and Muskegon routes.
[[Page 73]]
45.185 Tow limitations.
45.187 Weather limitations.
45.191 Pre-departure requirements.
45.193 Towboat power requirements.
45.195 Additional equipment requirements for the Muskegon route.
45.197 Operational plan requirements for the Muskegon route.
Appendix A to Part 45--Load Line Certificate Form
Authority: 46 U.S.C. 5104, 5108; Department of Homeland Security
Delegation No. 0170.1.
Source: CGD 73-49R, 38 FR 12290, May 10, 1973, unless otherwise
noted.
Subpart A_General
Sec. 45.1 Purpose.
This part prescribes requirements for assignment of freeboards,
issuance of loadline certificates, and marking of loadlines for service
on the Great Lakes of North America.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by USCG-1998-4442, 63
FR 52190, Sept. 30, 1998]
Sec. 45.3 Definitions.
As used in this part:
(a) Length (L) means 96 percent of the total length on a waterline
at 85 percent of the least moulded depth measured from the top of the
keel or the length from the foreside of the stem to the axis of the
rudder stock on that waterline, if that is greater. In ships designed
with a rake of keel the waterline on which this length is measured must
be parallel to the designed waterline.
(b) Perpendiculars means the forward and after perpendiculars at the
forward and after ends of the length (L). The forward perpendicular
coincides with the foreside of the stem on the waterline on which the
length is measured.
(c) Amidships means the middle of the length (L).
(d) Breadth unless expressly provided otherwise, means the maximum
breadth of the ship, measured amidships to the moulded line of the frame
in a ship with a metal shell and to the outer surface of the hull in a
ship with a shell of any other material.
(e) Moulded Depth means the vertical distance measured amidships
from the top of the keel to the top of the freeboard deck beam at side
except that--
(1) In vessels of other than metal construction, the distance is
measured from the lower edge of the keel rabbet;
(2) Where the form at the lower part of the midship section is of a
hollow character, or where thick garboards are fitted, the distance is
measured from the point where the line of the flat of the bottom
continued inwards cuts the side of the keel;
(3) In ships having rounded gunwales, this distance is measured to
the point of intersection of the moulded lines of the deck and side, the
lines extending as though the gunwale were of angular design; and
(4) Where the freeboard deck is stepped and the raised part of the
deck extends over the point at which the moulded depth is to be
determined, the distance is measured to a line of reference extending
from the lower part of the deck along a line parallel with the raised
part.
(f) Depth for Freeboard (D) means--
(1) Moulded depth amidships plus the thickness of the stringer plate
with no allowance for sheathing; and
(2) In a vessel having a rounded gunwale with a radius greater than
4 percent of the breadth (B) or having topsides of unusual form, the
depth for freeboard (D) of a vessel having a midship section with
vertical topsides and with the same round of beam and area of topside
section equal to that provided by the actual midship section.
(g) Freeboard means the distance measured vertically downwards
amidships from the upper edge of the deck line to the upper edge of the
related load line.
(h) Freeboard Deck means, normally, the uppermost complete deck
exposed to weather and sea that has permanent means of closing all
openings in the weather part thereof and below which all openings in the
sides of the ship are fitted with permanent means of watertight closings
except that--
(1) In a ship having a discontinuous freeboard deck, the lowest line
of the exposed deck and the continuation of that line parallel to the
upper part of the deck is the freeboard deck.
[[Page 74]]
(2) At the option of the owner and subject to the approval of the
Commandant a lower deck may be designated as the freeboard deck, if it
is a complete and permanent deck continuous in a fore and aft direction
at least between the machinery space and peak bulkheads and continuous
athwartships;
(3) When this lower deck is stepped the lowest line of the deck and
the continuation of that line parallel to the upper part of the deck is
taken as the freeboard deck.
(i) Superstructure means a deck structure on the freeboard deck,
extending from side to side of the ship or with the side plating not
being inboard of the shell plating more than 4 percent of the breadth
(B). A raised quarterdeck is a superstructure.
(j) Enclosed superstructure means a superstructure with enclosing
bulkheads.
(k) Height of a superstructure means the least vertical height
measured at side from the top of the superstructure deck beams to the
top of the freeboard deck beams.
(l) Length of a superstructure (S) means the mean length of the part
of the superstructure which extends to the sides of the vessel and lies
within the length (L).
(m) Flush deck ship means a ship that has no superstructure on the
freeboard deck.
(n) Weathertight means that in any sea conditions water will not
penetrate into the ship.
(o) Watertight means designed to withstand a static head of water.
(p) Exposed positions means exposed to weather and sea.
(q) Intact bulkhead with respect to superstructure means a bulkhead
with no openings.
(r) Steel means steel and materials with which structures can be
made equivalent to steel with respect to such parameters as yield
strength, total deflection, flexural life, or resistance to galvanic or
stress corrosion.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by USCG-2014-0688, 79
FR 58280, Sept. 29, 2014]
Sec. 45.5 Seasonal application of load lines.
For the purposes of the law and regulations prohibiting submergence
of load lines (46 U.S.C. 88c; 46 CFR 42.07-10), the fresh water and salt
water load lines marked under this part apply during the following
seasons:
(a) Summer load lines apply April 16 through April 30 and September
16 through September 30.
(b) Except for hopper dredges operating at working freeboards in
accordance with subpart C of part 44 of this chapter, the Assigning
Authority may not allow for lesser freeboards.
(c) Intermediate load lines apply October 1 through October 31 and
April 1 through April 15.
(d) Winter load lines apply November 1 through March 31.
Sec. 45.9 Seasonal application of load lines for vessels not marked
under this part.
(a) For the purposes of the law and regulations prohibiting
submergence of load lines (46 U.S.C. 88c; 46 CFR 42.07-10) the marks
assigned to vessels holding international load line certificates apply
during the following seasons:
(1) Vessels assigned freeboards as new vessels under the
International Load Line Convention, 1966--
(i) Winter--November 1 through March 31.
(ii) Summer--April 1 through April 30 and October 1 through October
31.
(iii) Tropical--May 1 through September 30;
(2) Vessels assigned freeboards as existing vessels under the
International Load Line Convention, 1966--
(i) Winter--November 1 through March 31;
(ii) Summer--April 1 through April 30 and October 1 through October
31;
(iii) Tropical--September 16 through September 30;
(iv) Tropical Fresh--May 1 through September 15.
(b) Except for hopper dredges operating at working freeboards in
accordance with subpart C of part 44 of this chapter, the Assigning
Authority may not allow for lesser freeboards.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by CGD 76-080, 54 FR
36977, Sept. 6, 1989]
[[Page 75]]
Sec. 45.11 Issue of load line certificate.
(a) A vessel 79 feet in length and more, and 150 gross tons or over,
the keel of which is laid or which has reached a similar stage of
construction after April 14, 1973, must meet the requirements of this
part.
(b) Except as prescribed in paragraph (a) of this section, any
vessel that meets the requirements in subparts C and D of this part and
the survey requirements in Sec. Sec. 42.09-15 through 42.09-50 of this
subchapter is entitled to assignment of freeboards and issue of a load
line certificate under this part by the Commandant or his authorized
representative.
(c) A vessel, the keel of which was laid or was at a similar stage
of construction before April 14, 1973, that meets the requirements of
this part that were in effect before April 14, 1973, and the survey
requirements in Sec. Sec. 42.09-15 through 42.09-50 of this subchapter
is entitled to the assignment of freeboards calculated under the
provisions of this part in effect before April 14, 1973, and to a load
line certificate issued under this part by the Commandant or his
authorized representative.
Sec. 45.13 Form of certificate.
The form of a load line certificate issued under this part is
specified in appendix A to this part.
Sec. 45.15 Exemptions.
(a) The Commandant may exempt a ship from any of the requirements in
this part if the chairman of the board of Steamship Inspections,
Department of Transport, Canada, and the Commandant agree that the
sheltered nature or the condition of that voyage make it unreasonable or
impracticable to apply requirements of this part.
(b) The Commandant may exempt a vessel that embodies features of a
novel kind from any of the requirements of this part if those
requirements might seriously impede research into the development of
such features and their incorporation in ships. Any such vessel must
comply with the safety requirements that, in the opinion of the
Commandant, are adequate for the service for which the vessel is
intended and will insure the overall safety of the vessel. If the
Commandant grants an exemption pursuant to this paragraph he
communicates the details of the exemption and the reasons therefor to
the chairman of the board of Steamship Inspections.
(c) A vessel that is not normally engaged on voyages to which this
part applies but that, in exceptional circumstances, is required to
undertake a single such voyage between two specific ports may be
exempted by the Commandant from any of the requirements of this part, if
the ship complies with safety requirements that, in the opinion of the
Commandant are adequate for the voyage that is to be undertaken by the
vessel.
(d) Unmanned dry cargo river barges carrying non-hazardous cargoes
on certain routes on Lake Michigan may be exempted from load line
requirements in accordance with the conditions specified in subpart E of
this part.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by CGD 84-058, 50 FR
19533, May 9, 1985; USCG-1998-4623, 67 FR 19690, Apr. 23, 2002]
Subpart B_Load Line Marks
Sec. 45.31 Deck line.
(a) Each vessel must be marked with a deck line on the outer surface
of the shell on each side of the vessel with the upper edge of the line
passing through the point where the upper surface of the freeboard deck
intersects the outer surface of the shell or if the summer freeboard is
correspondingly adjusted under Sec. 45.57, the deck line may be placed
above or below the freeboard deck. Figure 1 illustrates the deck line
markings.
(b) Each deck line must be at least 12-inches long and 1-inch wide.
[[Page 76]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.015
Sec. 45.33 Diamond.
(a) Each vessel must be marked with the diamond mark described in
figure 2 of Sec. 45.35 amidships below the upper edge of the deck line
on each side with the center of the loadline mark at a distance below
the deck line equal to the summer freeboard assigned under this part.
(b) The width of each line in the loadline mark must be 1 inch.
Sec. 45.35 Seasonal load lines.
Each vessel must have the summer (S), midsummer (MS), intermediate
(I), and winter (W) loadlines for fresh water freeboards calculated
under Sec. Sec. 45.71 through 45.75 marked in accordance with Sec.
45.39.
[GRAPHIC] [TIFF OMITTED] TC01FE91.016
Sec. 45.37 Salt water load lines.
Each vessel that operates in the salt water of the St. Lawrence
River must--
(a) Be marked with the summer (S), midsummer (MS), intermediate (I)
and winter (W) load line marks under Sec. 45.77 for salt water; and
(b) Be marked with the letters ``FW'' above the fresh water marks
and the letters ``SW'' above the salt water marks as described in figure
2.
Sec. 45.39 Marking.
(a) The diamond, lines, and letters must be painted in white or
yellow on a dark ground or in black on a light ground and permanently
marked on the sides of the vessel.
(b) The upper edge of the line that passes through the center of the
diamond must indicate summer freeboard assigned under Sec. 45.53.
(c) Unless otherwise authorized the seasonal load lines must be
horizontal lines extending forward of, and at right angles to, a
vertical line marked at a distance 26 inches forward of the vertical
centerline of the diamond as described in figure 2.
(d) The salt water load lines must be horizontal lines extending
abaft the vertical line required by paragraph (b) of this section as
described in figure 2.
[[Page 77]]
(e) The upper edge of each seasonal and salt water load line mark
must indicate the minimum freeboard for that mark.
(f) When two freeboards assigned under this part differ by 2 inches
or less, the line for the lesser freeboard must be omitted and the line
for the greater freeboard must be identified with the seasonal letters
for both freeboards.
(g) Seasonal freeboards that are limited by a summer freeboard
assigned under Sec. 45.53(c) must not be marked but the identifying
letter must be marked adjacent to the summer mark.
(h) The identity of the authority that assigns the freeboard must be
indicated alongside the load line diamond above the horizontal line that
passes through the center of the diamond with two initials approximately
4\1/2\ inches high and 3 inches wide.
Subpart C_Freeboards
Sec. 45.51 Types of ships.
(a) For the purpose of this subpart, a type A vessel has--
(1) No cargo ports or similar sideshell openings below the freeboard
deck;
(2) Only small freeboard deck openings fitted with watertight
gasketed hatch covers of steel;
(3) No dimension of a freeboard deck cargo opening greater than 6
feet and the total area not exceeding 18 ft\2\; and
(4) No more than two freeboard deck cargo openings to a single cargo
space.
(b) For the purposes of this subpart a type B vessel is a vessel
that does not meet the requirements in paragraph (a) of this section.
Sec. 45.53 Summer freeboard.
(a) Except as required in paragraph (c) of this section, the minimum
freeboard in summer for a type A vessel is F in the following formula
modified by the corrections in this subpart:
F (inches) = 10.2 x P1 x D
where P1 is defined in Sec. 45.55 and D is the depth for
freeboard in feet.
(b) Except as required in paragraph (c) of this section, the minimum
freeboard in summer for a type B vessel is F in the formula modified by
the corrections in this subpart:
F (inches) = 12 x P1 x D
where P1 is defined by Sec. 45.55 and D is the depth for
freeboard in feet.
(c) Seasonal freeboards assigned under Sec. Sec. 45.71 through
45.75 must be calculated on the basis of the summer freeboard calculated
under paragraph (a) or (b) of this section.
(d) If a minimum freeboard is required for a vessel under this part
which is greater than that required by paragraph (a) or (b) of this
section because of scantling or subdivision requirements, the summer
freeboard and the seasonal freeboards assigned under this subpart must
be no less than that minimum freeboard, except the midsummer seasonal
freeboard may be calculated on the basis of the summer freeboard
assigned under this paragraph.
(e) If a greater than the calculated minimum freeboard is requested
by the applicant for the load line certificate, that greater freeboard
may be assigned as the summer freeboard and--
(1) The intermediate and winter seasonal freeboards assigned must be
calculated under paragraph (a) or (b) of this section; and
(2) The midsummer seasonal freeboard must be calculated on the basis
of the summer freeboard assigned under this paragraph.
Sec. 45.55 Freeboard coefficient.
(a) For ships less than 350 feet in length (L), the freeboard
coefficient is P1 in the formula:
P1=P + A[(L/D)-(L/Ds)]
where P is a factor, which is a function of the length from table 1 and
``A'' is a coefficient, which is a function of length (L),
from table 2; L/D is the ratio of the length (L) to the depth
for freeboard (D); L/Ds is the ratio of the length
(L) to a standard depth (Ds) from table 3.
D is not to be used as less than that which will give a ration of L
to D that is:
(a) More than 15 when L = 400 feet or less, or
(b) More than 21 when L = 700 feet or more, with the ratio for
intermediate lengths being calculated proportionately.
(b) For ships 350 feet or more in length (L), the coefficient ``A''
is zero and the formula is:
P1=P
[[Page 78]]
where P is a factor, which is a function of length from table (1).
Sec. 45.57 Correction: Position of deckline.
(a) Where the depth to the upper edge of the deckline is greater or
less than D, the difference between the depths must be added to or
deducted from the freeboard.
(b) When the Commandant or the approved assigning authority approves
a location for the deckline that is above or below the freeboard deck,
the minimum summer freeboard must be corrected by--
(1) Adding the difference between the depth and D if the depth is
greater than D; and
(2) Subtracting the difference between the depth and D, if the depth
is less than D.
(c) Except for the adjustment allowed in paragraph (b) of this
section, no freeboard of less than 2 in. may be assigned.
Sec. 45.58 Correction: Short superstructure.
The minimum freeboard in summer for a type B vessel that is 79 ft.
or more but less than 500 ft. in length and has enclosed superstructures
with an effective length of 25 percent or less of the length of the
vessel must be increased by--
0.03 (500--L) (0.25--E/L) inches
where:
(L) = length of vessel in feet;
(E) = effective length of superstructure in feet as defined in Sec.
45.59.
Sec. 45.59 Definitions for superstructure corrections.
For the purpose of Sec. Sec. 45.58 through 45.61--
(a) The standard height of a superstructure (Hs) other than a raised
quarter deck and the standard height of a trunk (Hs) is determined by
the formula:
Hs=[6.0 + (L/300)] ft
(b) The length of superstructure (S) is the length of those parts of
the superstructure which extends to the sides of the vessel and that lie
within the length (L).
(c) The effective length (E) of a trunk is its length in the ratio
of its mean breadth to B.
(d) The effective length (E) of an enclosed superstructure of
standard height or greater is its length ``S''.
(e) Where the height of an enclosed superstructure or trunk is less
than the standard height (Hs),the effective length (E) is its length
reduced in the ratio of its height to Hs.
(f) The effective length (E) of a raised quarter deck of \2/3\ Hs or
greater that has no openings in the front bulkhead is its length up to a
maximum of 0.6L.
(g) The effective length (E) of a raised quarter deck of less than
\2/3\ Hs or that does not have an intact front bulkhead is
its length reduced by the ratio of its height to Hs.
Table 12(1)
tables of p values
------------------------------------------------------------------------
Value of
Length of Ship (feet) P
------------------------------------------------------------------------
80........................................................... 0.1100
90........................................................... 0.1136
100.......................................................... 0.1172
110.......................................................... 0.1208
120.......................................................... 0.1244
130.......................................................... 0.1281
140.......................................................... 0.1318
150.......................................................... 0.1355
160.......................................................... 0.1393
170.......................................................... 0.1430
180.......................................................... 0.1468
190.......................................................... 0.1506
200.......................................................... 0.1545
210.......................................................... 0.1583
220.......................................................... 0.1622
230.......................................................... 0.1661
240.......................................................... 0.1700
250.......................................................... 0.1740
260.......................................................... 0.1780
270.......................................................... 0.1820
280.......................................................... 0.1860
290.......................................................... 0.1900
300.......................................................... 0.1941
310.......................................................... 0.1982
320.......................................................... 0.2023
330.......................................................... 0.2065
340.......................................................... 0.2106
350.......................................................... 0.2148
360.......................................................... 0.2190
370.......................................................... 0.2233
380.......................................................... 0.2275
390.......................................................... 0.2318
400.......................................................... 0.2361
410.......................................................... 0.2400
420.......................................................... 0.2437
430.......................................................... 0.2472
440.......................................................... 0.2506
450.......................................................... 0.2537
460.......................................................... 0.2567
470.......................................................... 0.2595
480.......................................................... 0.2621
490.......................................................... 0.2645
500.......................................................... 0.2667
[[Page 79]]
510.......................................................... 0.2688
520.......................................................... 0.2706
530.......................................................... 0.2723
540.......................................................... 0.2738
550.......................................................... 0.2751
560.......................................................... 0.2762
570.......................................................... 0.2772
580.......................................................... 0.2779
590.......................................................... 0.2785
600.......................................................... 0.2788
610.......................................................... 0.2790
620.......................................................... 0.2790
630.......................................................... 0.2789
640.......................................................... 0.2785
650.......................................................... 0.2779
660.......................................................... 0.2772
670.......................................................... 0.2768
680.......................................................... 0.2760
690.......................................................... 0.2751
700.......................................................... 0.2740
710.......................................................... 0.2728
720.......................................................... 0.2715
730.......................................................... 0.2700
740.......................................................... 0.2684
750.......................................................... 0.2667
760.......................................................... 0.2648
770.......................................................... 0.2628
780.......................................................... 0.2607
790.......................................................... 0.2584
800.......................................................... 0.2560
810.......................................................... 0.2532
820.......................................................... 0.2504
830.......................................................... 0.2476
840.......................................................... 0.2448
850.......................................................... 0.2420
860.......................................................... 0.2392
870.......................................................... 0.2364
880.......................................................... 0.2336
890.......................................................... 0.2308
900.......................................................... 0.2280
910.......................................................... 0.2252
920.......................................................... 0.2224
930.......................................................... 0.2196
940.......................................................... 0.2168
950.......................................................... 0.2140
960.......................................................... 0.2112
970.......................................................... 0.2084
980.......................................................... 0.2056
990.......................................................... 0.2028
1000......................................................... 0.2000
------------------------------------------------------------------------
Table 12(2)
values of ``a'' for use in the expression
P1=P + ``A'' (L/D--L/Ds)
------------------------------------------------------------------------
Value of
Length of Ship (feet) ``A''
------------------------------------------------------------------------
80......................................................... 0.00864
90......................................................... 0.00806
100........................................................ 0.00750
110........................................................ 0.00696
120........................................................ 0.00644
130........................................................ 0.00594
140........................................................ 0.00546
150........................................................ 0.00500
160........................................................ 0.00456
170........................................................ 0.00414
180........................................................ 0.00374
190........................................................ 0.00336
200........................................................ 0.00300
210........................................................ 0.00266
220........................................................ 0.00234
230........................................................ 0.00204
240........................................................ 0.00176
250........................................................ 0.00150
260........................................................ 0.00126
270........................................................ 0.00104
280........................................................ 0.00084
290........................................................ 0.00066
300........................................................ 0.00050
310........................................................ 0.00036
320........................................................ 0.00024
330........................................................ 0.00014
340........................................................ 0.00006
350........................................................ 0.00000
------------------------------------------------------------------------
Table 12(3)
values of l/ds
------------------------------------------------------------------------
Length of Ship (feet) Value of L/D5
------------------------------------------------------------------------
80...................................................... 6.50000
90...................................................... 6.76563
100..................................................... 7.03125
110..................................................... 7.29688
120..................................................... 7.56250
130..................................................... 7.82813
140..................................................... 8.09375
150..................................................... 8.35938
160..................................................... 8.62500
170..................................................... 8.89063
180..................................................... 9.19625
190..................................................... 9.42188
200..................................................... 9.68750
210..................................................... 9.95313
220..................................................... 10.21875
230..................................................... 10.48438
240..................................................... 10.75000
250..................................................... 11.01563
260..................................................... 11.28125
270..................................................... 11.54688
280..................................................... 11.81250
290..................................................... 12.07813
300..................................................... 12.34375
310..................................................... 12.60938
320..................................................... 12.87500
330..................................................... 13.14063
340..................................................... 13.40625
350..................................................... 13.67188
360..................................................... 13.93750
370..................................................... 14.20313
380..................................................... 14.46875
390..................................................... 14.73438
400..................................................... 15.00000
------------------------------------------------------------------------
(h) Superstructures which are not enclosed have no effective length.
(i) When a lower deck is designated as the freeboard deck, that part
of the hull which extends above the freeboard deck is treated as a
superstructure so far as concerns the application of the conditions of
assignment and the calculation of freeboard.
[[Page 80]]
(j) A bridge or poop is enclosed only when access is provided
whereby the crew may reach accommodations, machinery, or other working
spaces inside the superstructure by alternative means that are available
at all times when bulkhead openings are closed.
Sec. 45.61 Correction for superstructures and trunks.
(a) Where the effective length E of superstructures and trunks that
meet the requirements of subpart D of this part is 1.0L, the minimum
summer freeboard may be corrected by subtracting \1/2\Hs.
(b) Where the effective length of superstructures and trunks is less
than 1.0L the minimum summer freeboard may be corrected by subtracting a
percentage of one-half of the standard superstructure height (Hs)
determined by the formula:
Percentage = (E/2L) (1 + E/L) x 100
(c) To be eligible for the correction a trunk must--
(1) Be at least as strong and as stiff as a superstructure;
(2) Have no opening in the freeboard deck in way of the trunk,
except small access openings;
(3) Have hatchway coamings and covers that meet Sec. Sec. 45.143
through 45.147;
(4) Provide a permanent working platform fore and aft with
guardrails;
(5) Provide fore and aft access between detached trunks and
superstructures by permanent gangways;
(6) Be at least 60 percent of the breadth of the ship in way of the
trunk; and
(7) Be at least 0.6 L in length, if no superstructure, is provided.
Sec. 45.63 Correction for sheer.
(a) The minimum summer freeboard must be increased by the
deficiency, or may be decreased by the excess as limited by Sec. 45.65,
of sheer calculated from table 4, multiplied by:
0.75--(S/2L)
where S is the total length of enclosed superstructures. Trunks are not
included.
Sec. 45.65 Excess sheer limitations.
The decrease in freeboard allowed in Sec. 45.63 is limited as
follows:
Sheer Calculation--Table 4
----------------------------------------------------------------------------------------------------------------
Station Actual ordinate S. M. Product
----------------------------------------------------------------------------------------------------------------
After Half:
AP.................................... ........................... 1
L/6-AP................................ ........................... 3
L/3-AP................................ ........................... 3
Midship............................... ........................... 1 ______________
Sum of Aft Products
After Standard Sheer .2665L + 26.65\1\ ........................... ....... ______________
Difference: Sum-STD................... ........................... ....... ______________ + Excess/-
Deficiency
AFT Sheer: Diff / 8................... ........................... ....... ______________ Excess/Deficiency
Fwd. Half:
FP.................................... ........................... 1
L/6-FP................................ ........................... 3
L/3-FP................................ ........................... 3
Midships.............................. ........................... 1 ______________
Sum of Fwd Products
Fwd Standard Sheer .5330L + 53.30\1\. ........................... ....... ______________
Difference: Sum-STD................... ........................... ....... ______________ + Excess/-
Deficiency
FWD Sheer: Diff / 8................... ........................... ....... ______________ Excess/Deficiency
----------------------------------------------------------------------------------------------------------------
\1\ L in Standard Sheer = L or 500 whichever is less.
Sheer Summation
Aft Sheer ______________
Fwd Sheer ______________
Net Sheer ______________
Mean: Net-2 ______________ Excess/
Deficiency
[[Page 81]]
(a) In vessels having no enclosed superstructure from 0.1 L abaft
amidships to 0.1 L forward of amidships, no decrease is allowed.
(b) In vessels having enclosed superstructures amidships less than
0.1 L before and abaft amidships, the decrease must be reduced by linear
interpolation.
(c) If excess sheer exists in the forward half, and the after half
is at least 75 percent of standard sheer, the full decrease is allowed.
If the after sheer is between 50 percent and 75 percent of standard
sheer an intermediate decrease, determined by linear interpolation, is
allowed for the excess sheer forward. If the after sheer is 50 percent
of standard or less, no decrease is allowed for the excess sheer
forward.
(d) Where an enclosed poop or forecastle is of standard height with
greater sheer than that of the freeboard deck, or is greater than
standard height, an addition to the sheer of the freeboard deck may be
made using the following formula:
S=vL'/3L
Where
s = sheer credit, to be deducted from the deficiency or added to the
excess of sheer.
v = difference between actual and standard height of superstructure at
the end ordinate.
L' = mean enclosed length of poop or forecastle up to a maximum length
of 0.5 L.
The superstructure deck must not be less than standard height above this
curve at any point. This curve must be used in determining the sheer
profile for forward and after halves of the vessel.
(e) The maximum decreased for excess sheer must be no more than 1\1/
2\ inches per 100 feet of length.
(f) Where the deck of an enclosed superstructure has at least the
same sheer as the exposed freeboard deck, the sheer of the enclosed
portion of the freeboard deck cannot be taken into account.
Sec. 45.67 Sheer measurement.
(a) The sheer is measured from the freeboard deck at side to a line
of reference drawn parallel to the keel through the sheer line at
amidships;
(b) In ships designed with a rake of keel or designed to trim by the
stern, the sheer must be measured in reference to a line drawn through
the sheer line at amidships parallel to the design load waterline.
(c) In flush deck ships and in ships with detached superstructures,
the sheer must be measured at the freeboard deck.
(d) In ships with a step or break in the topsides, the sheer must be
measured from the equivalent depth amidships.
(e) In vessels with a superstructure of standard height that extends
over the whole length of the freeboard deck, the sheer must be measured
on the superstructure deck. Where the height of superstructure exceeds
the standard, the least difference (Z) between the actual and standard
heights must be added to each end ordinate. Similarly, the intermediate
ordinates at distance of \1/6\ L and \1/3\ L from each perpendicular
must be increased by 0.444 Z and 0.111 Z respectively.
Sec. 45.69 Correction for bow height.
(a) The minimum summer freeboard of all manned vessels must be
increased by the same amount in inches as any deficiency which may be
shown by the following formulas:
(1) For vessels having a length of not less than 79 feet and not
greater than 550 feet,
0.593 L (1.0-L/1640) inches--actual bow height
(2) For vessels having a length greater than 550 feet,
(341.6--0.227 L) inches--actual bow height
(b) Where the bow height is obtained by sheer, the sheer must extend
for at least 15 percent of the length of the vessel measured from the
forward perpendicular.
(c) Where the bow height is obtained by a superstructure, the
superstructure must be enclosed and extend from the stem to a point at
least 0.06 L abaft the forward perpendicular.
(d) Vessels which, to suit exceptional operational requirements,
cannot meet the requirements of paragraph (c) of this section may be
given special consideration by the Commandant.
[[Page 82]]
(e) The bow height is defined as the vertical distance at the
forward perpendicular between the waterline corresponding to the
assigned summer freeboard at the designed trim and the top of the
exposed deck at side.
Sec. 45.71 Midsummer freeboard.
The minimum midsummer freeboard (fms) in inches is obtained by the
formula:
fms = f(s) - 0.3Ts
where:
f(s) = summer freeboard in inches
Ts = distance in feet between top of keel and the summer load line.
Sec. 45.73 Winter freeboard.
The minimum winter freeboard (fw) in inches is obtained by the
formula:
fw=f(s) + T s (200)/L
where:
L = length L in feet but not less than 400 feet.
Sec. 45.75 Intermediate freeboard.
The minimum intermediate freeboard (fI) in inches is
obtained by the formula:
fI=f(s) + T s(100)/L
where:
L = length L in feet but not less than 400 feet.
Sec. 45.77 Salt water freeboard.
(a) The salt water addition in inches to freeboard applicable to
each fresh water mark is obtained by the formula:
Addition=[Delta]/41T
where:
[Delta] = displacement in fresh water, in tons of 2,240 pounds, at the
summer load waterline.
T = tons per inch immersion, of 2,240 pounds, in fresh water at the
summer load waterline.
(b) When the displacement at the summer load waterline cannot be
certified, the addition in inches to the minimum freeboard in fresh
water may be obtained by multiplying 0.25 by the summer draught in feet
measured from the top of the keel to the center of the load line
diamond.
Subpart D_Conditions of Assignment
Sec. 45.101 Purpose.
This subpart prescribes conditions that a vessel must meet to be
eligible for assignment of a loadline under this part.
Sec. 45.103 Structural stress and stability.
(a) The nature and stowage of the cargo, ballast, and other variable
weights must be such as to make the vessel stable and avoid unacceptable
structural stress.
(b) The vessel must meet all applicable stability and subdivision
requirements of this chapter.
Sec. 45.105 Information supplied to the master.
Unless otherwise authorized by the Commandant, the vessel must have
onboard, in a form approved by the Commandant, sufficient information.
(a) To enable the master to load and ballast the vessel in a manner
that avoids unacceptable stresses in the vessel's structure; and
(b) To guide the master as to the stability of the ship under
varying conditions of service.
Sec. 45.107 Strength of hull.
The general structural strength of the hull must be sufficient for
the draught corresponding to the freeboard assigned and must be approved
by the Commandant. Ships built and maintained in conformity with the
requirements of a classification society may be recognized by the
Commandant as possessing adequate strength.
Sec. 45.109 Strength of superstructures and deckhouses.
Each superstructure or deckhouse used for accommodations of the crew
must be approved by the Commandant or the approved assigning authority
with regard to general strength and weathertightness. The Commandant may
use the requirements of the assigning authority as a guide.
Sec. 45.111 Strength of bulkheads at ends of superstructures.
Bulkheads at ends of enclosed superstructures must have sufficient
[[Page 83]]
strength to withstand impact of boarding seas.
Sec. 45.113 Access openings in bulkheads at ends of enclosed superstructures.
(a) Access openings in bulkheads at ends of enclosed superstructures
must have doors of steel or material as strong as steel that are
permanently attached to the bulkhead and framed, stiffened, and fitted
so that the bulkhead and door are as strong as the bulkhead and weather
tight when closed.
(b) The means for securing the doors weathertight must be
permanently attached to the doors or bulkheads and arranged so that the
doors can be secured weathertight from both sides of the bulkhead.
(c) Access openings in bulkheads at ends of enclosed superstructures
must have sills that are at least 12 inches above the deck.
Sec. 45.115 Bulwarks and guardrails.
(a) The exposed parts of freeboard and superstructures decks and
deckhouses on the freeboard deck must have guardrails or bulwarks that
are at least 36 inches high above the deck.
(b) Guardrails must have at least three courses with no more than a
9-inch opening below the lowest course and no more than 15 inches
between other courses. If the sheer strake projection is at least 8
inches above the deck, a guardrail may have two courses with no more
than 15 inches between courses.
(c) In way of trunks at least half the protection required by
paragraph (a) of this section must be in the form of open rails.
Sec. 45.117 Freeing port area: General.
(a) Where bulwarks on the weather portions of freeboard or
superstructure decks form wells, the bulwarks must have the area
prescribed in this section and Sec. Sec. 45.119 and 45.121 for rapidly
freeing and draining the decks of water.
(b) Except as required in Sec. Sec. 45.119 and 45.121 the minimum
freeing port area in square feet on each side of the ship for each well
on the freeboard deck and on the raised quarterdeck must be at least as
great as A in the following formulas:
(1) Where the length of bulwark (l) in the well is 66 feet or less,
A = 7.6 + 0.115 (l)
(2) Where (l) exceeds 66 feet, A = 0.23 (l)
but (l) need in no case be taken as greater than 0.7L.
(c) In ships having erections on deck that are open at either or
both ends, provision for freeing the space within such erections must be
approved by the Commandant or the assigning authority.
(d) The lower edges of the freeing ports must be as near the deck as
practicable. Two-thirds of the freeing port area required must be
provided in the half of the well nearest the lowest point of the sheer
curve.
(e) All freeing port openings in the bulwarks must be protected by
rails or bars spaced approximately 9 inches. If shutters are fitted to
freeing ports, ample clearance must be provided to prevent jamming.
Hinges must have pins or bearings of noncorrodible material. If shutters
are fitted with securing appliances, these appliances must be of
approved construction.
(f) The minimum freeing port area for each well on superstructure
decks must be one-half of the area required by paragraph (b) of this
section.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by USCG-2014-0688, 79
FR 58280, Sept. 29, 2014]
Sec. 45.119 Freeing port area: Changes from standard sheer.
The freeing port area required by Sec. 45.117(b) must be multiplied
by the factor in the following table 5 if the sheer differs from the
standard sheer defined in Sec. 45.63. table 4.
Table 5
Freeing port area: Sheer correction.
------------------------------------------------------------------------
Multiplier
for area
Ratio of sums of actual sheer ord./std. sheer ord. Greater required
than: by Sec.
45.117(b)
------------------------------------------------------------------------
1.0......................................................... 1.0
1.0......................................................... 1.00
0.9......................................................... 1.05
0.8......................................................... 1.10
0.7......................................................... 1.15
0.6......................................................... 1.20
0.5......................................................... 1.25
0.4......................................................... 1.30
0.3......................................................... 1.35
0.2......................................................... 1.40
[[Page 84]]
0.1......................................................... 1.45
No sheer.................................................... 1.50
------------------------------------------------------------------------
Sec. 45.121 Freeing port area: Changes for trunks and side coamings.
If a vessel has a trunk and does not meet the requirements of Sec.
45.61 or has continuous or substantially continuous hatchway side
coamings between detached superstructures, the minimum area of the
freeing port openings must be obtained from the following table:
------------------------------------------------------------------------
Area of
freeing
ports in
relation
Breadth of hatchway or trunk in relation to the breadth of to the
ship total
area of
the
bulwarks
(percent)
------------------------------------------------------------------------
40 percent or less........................................... 20
75 percent or more........................................... 10
------------------------------------------------------------------------
The area of freeing ports at intermediate breadths must be obtained by
linear interpolation.
Sec. 45.123 Freeing port area: Changes for bulwark height.
(a) For the purposes of freeing port area only, bulwark height is
considered standard at 24 in for ships 240 ft in length and less; and 48
in for ships 480 ft in length or greater. The standard bulwark height
for ships of intermediate length is obtained by direct interpolation.
(b) If the bulwark is more than standard height, the area required
by Sec. 45.117 must be increased by 0.04 square feet per foot (ft\2\/
ft) of length of well for each foot difference in height.
(c) For ships greater than 480 ft in length that have an average
bulwark height less than 3 ft, the area required by Sec. 45.117 may be
decreased by 0.04 ft\2\/ft of length for each foot difference in height.
Sec. 45.125 Crew passageways.
The vessel must have means for protection of the crew from boarding
seas such as life lines, gangways, and underdeck passages to facilitate
passing between their quarters and machinery spaces and other spaces
essential to the operation of the ship.
Sec. 45.127 Position of structures, openings, and fittings.
For the purposes of this part--
(a) Position 1 means in an exposed position on--
(1) The freeboard deck or a raised quarter deck;
(2) A superstructure deck or a trunk deck and forward of a point \1/
4\ L from the forward perpendicular; or
(3) A trunk deck whose height is less than Hs.
(b) Position 2 means--
(1) On a superstructure deck aft of a point \1/4\ L abaft the
forward perpendicular; or
(2) On a superstructure and trunk combination, that is Hs
or more n height, aft or a point \1/4\ L abaft the forward
perpendicular.
Sec. 45.129 Hull fittings: General.
Hull fittings must be securely mounted in the hull so as to avoid
increases in hull stresses and must be protected from local damage
caused by movement of equipment or cargo.
Sec. 45.131 Ventilators.
(a) Ventilators passing through superstructures other than enclosed
superstructures must have coamings of steel or equivalent material at
the freeboard deck.
(b) Ventilators in position 1 must have coamings at least 30 in.
above the deck and ventilators in position 2 must have coamings at least
24 in. above the deck. The Commandant or the assigning authority may
also require coamings in other exposed positions.
(c) Ventilators in position 1 or 2 to spaces below freeboard decks
or decks of enclosed superstructures or trunks must have coamings of
steel permanently connected to the deck and any ventilator coaming that
is more than 36 in. high must be specially supported.
(d) Except as provided in paragraph (e) of this section ventilator
openings must have weathertight closing appliances that are permanently
attached or, where approved by the Commandant or the assigning authority
[[Page 85]]
conveniently stowed near the ventilators to which they are to be fitted.
(e) Ventilators in position 1, the coamings of which extend to more
than 12.5 ft above the deck, and in position 2, the coamings of which
extend to more than 6 ft above the deck, need not have closing
appliances unless specifically required by the Commandant.
Sec. 45.133 Air pipes.
(a) Where an air pipe to any tank extends above the freeboard or
superstructure deck--
(1) The exposed part of the air pipe must be made of steel and of
sufficient thickness to avoid breaking from impact of boarding seas.
(2) The air pipe must have a permanently attached means of closing
its opening; and
(3) The height from the deck to any point where water may obtain
access below deck must be at least 30 in above the freeboard deck, 24 in
above raised quarter decks, and 12 in above other superstructure decks.
(b) If the height required in paragraph (a) of this section
interferes with working the ship, the Commandant may approve a lower
height after considering the closing arrangements.
Sec. 45.135 Hull openings at or below freeboard deck.
Closures for hull openings at or below the freeboard deck must be as
strong as the structure to which they are attached and must be
watertight.
Sec. 45.137 Cargo ports.
(a) Unless otherwise authorized by the Commandant, the lower edge of
any opening for cargo, personnel, machinery access, or similar opening
in the side of a ship must be above a line that is drawn parallel to the
freeboard deck at side and has as its lowest point the upper edge of the
uppermost loadline.
(b) The number of cargo ports in the sides of a ship must be--
(1) No more than the minimum necessary for working the ship; and
(2) Approved by the Commandant.
Sec. 45.139 Side scuttles.
(a) The sill of each side scuttle must be above a line that is drawn
parallel to the freeboard deck at side having its lowest point 2.5
percent of the breadth or 20 in above the summer load waterline,
whichever is higher.
(b) Except as provided for in paragraph (c) of this section, each
side scuttle to a space below the freeboard deck, or to a space within
an enclosed superstructure, must have a hinged inside deadlight which is
designed so that it can be secured watertight over the side scuttle.
(c) A side scuttle of a superstructure end bulkhead door,
companionway door, or deckhouse door may have a portable inside
deadlight which is designed so that it can be:
(1) Secured watertight over the side scuttle; and
(2) Stowed inside the superstructure, companionway, or deckhouse
when not in use, in a readily accessible location on or adjacent to the
door.
[CGD 73-49R, 38 FR 12290, May 10, 1973, as amended by CCGD 80-116, 46 FR
56788, Nov. 19, 1981]
Sec. 45.141 Manholes and flush scuttles.
Manholes and flush scuttles in position 1 or 2 or within any
superstructure other than an enclosed superstructure must have
permanently attached covers, unless the cover is secured by closely
spaced bolts around its entire perimeter.
Sec. 45.143 Hull openings above freeboard deck.
Closures for openings above the freeboard deck must be as strong as
the structure to which they are attached and must be weathertight.
Sec. 45.145 Hatchway covers.
(a) Hatchways in position 1 and 2 must have weathertight hatch
covers with gaskets and clamping devices.
(b) The maximum ultimate strength of the hatchway cover material
must be at least 4.25 times the maximum stress in the structure
calculated with the following assumed loads:
(1) For ships 350 ft or more in length, at least 250 lb/ft\2\ in
position 1 and 200 lb/ft\2\ in position 2.
(2) For ships less than 350 ft in length, at least AL in the
following formula:
(i) Position 1:
[[Page 86]]
AL = 200 + C
where C = 50(L-79)/271
(ii) Position 2:
Al = 150 + C
(c) Hatchway covers must be so designed as to limit the deflection
to not more than 0.0028 times the span under the loads described in
paragraph (b) of this section and the thickness of mild steel plating
forming the tops of covers must be at least 1 percent of the spacing of
stiffeners or 0.24 in, whichever is greater.
Sec. 45.147 Hatchway coamings.
(a) Except where the Commandant determines that the safety of the
vessel will not be impaired in any sea condition, each hatchway must
have a coaming that is at least--
(1) 18 inches in position 1; and
(2) 12 inches in position 2.
(b) Each hatchway coaming required by this section must be made of
steel or equivalent material.
(c) The height of these coamings may be reduced or omitted if the
Commandant is satisfied that safety of the ship is not thereby impaired
in any sea conditions.
Sec. 45.149 Machinery space openings.
(a) Machinery space openings in position 1 or 2 must be framed and
enclosed by steel casings, and where the casings are not protected by
other structures that meet the requirements of Sec. 45.109, their
strength must be approved by the Commandant or the assigning authority.
(b) Access openings in casings required by paragraph (a) of this
section must have doors complying with the requirements of Sec. 45.113.
Other openings in such casings shall be fitted with equivalent covers,
permanently attached.
(c) Except as provided in paragraph (d) of this section, coamings of
any funnel or machinery space ventilator that must be kept open for the
essential operations of the ship must--
(1) In position 1, extend at least 12.5 ft above the deck; and
(2) In position 2, extend at least 6 ft above the deck.
(d) The Commandant may approve a lesser height for protected
coamings.
(e) Coamings of any fiddley or skylight over a machinery space
opening in the freeboard or superstructure deck or the top of a
deckhouse on the freeboard deck, must have covers of steel permanently
attached and capable of being secured weathertight.
Sec. 45.151 Other openings.
Each opening other than hatchways, machinery space openings,
manholes, or flush scuttles--
(a) In freeboard decks, must be protected by an enclosed
superstructure or by a deckhouse or companionway that is equal in
strength and weathertightness to an enclosed superstructure; or
(b) In exposed superstructure decks or in the top of a deckhouse on
freeboard decks that gives access to a space below the freeboard deck or
a space within an enclosed superstructure, must be protected by a
deckhouse or companionway.
Sec. 45.153 Through-hull piping: General.
(a) All through-hull pipes required by this subpart must be made of
steel or material equivalent to the hull in strength and fatigue
resistance.
(b) All valves used as shell fittings and all shell fittings on
which such valves are mounted must be made of steel, or bronze or other
ductile material approved by the Commandant.
Sec. 45.155 Inlets and discharge piping: Valves.
(a) Except as provided in paragraphs (d) and (e) of this section
each pipe that discharges overboard through the hull of the ship must
have--
(1) An automatic nonreturn valve with a positive means for closing;
or
(2) Two automatic nonreturn valves with the inboard valve accessible
for examination in service.
(b) The means for operating a valve described by paragraph (a)(1) of
this section must be readily accessible and have indicators that show
when the valve is not closed.
(c) If the pipe discharges from a space that is not manned or does
not have continuous bilge water monitoring, a valve described in
paragraph (a)(1) of
[[Page 87]]
this section must be operable above the freeboard deck.
(d) Each pipe that discharges from a space within an enclosed
superstructure or deckhouse may have at least one accessible automatic
nonreturn valve if the space is regularly visited by the crew.
(e) Through-hull piping systems in machinery spaces may have valves
with positive means for closing at the shell if the controls are readily
accessible and have indicators showing when the valves are not closed
(nonreturn valves are not required).
Sec. 45.157 Scuppers and gravity drains.
Scuppers and gravity deck drains from spaces above the freeboard
deck that penetrate the shell below a line 24 or .05B above
the summer loadline, whichever is greater, must have an automatic
nonreturn valve. This valve may be omitted if the piping is of thickness
not less than extra heavy pipe.
Sec. 45.159 Special conditions of assignment for type A vessels.
The lower freeboards allowed for type A vessels allow water on deck
for greater percentages of time. Therefore the following additional
requirements must be met to qualify for type A freeboards:
(a) Machinery casings must be protected by an enclosed
superstructure or deckhouse unless intact bulkheads are used on all
sides on the freeboard deck.
(b) Exposed machinery casings may be fitted with weathertight doors
providing they lead to a space or passageway as strong as an enclosed
superstructure from which a second interior weathertight door is
provided for access to the engine room.
(c) Hatchways on the exposed freeboard or forecastle decks must be
provided with watertight covers of steel.
(d) Unless a separate fore and aft access is provided below the
freeboard deck, a permanent fore and aft gangway must be fitted at the
superstructure deck level between poop and all other deckhouses used in
the essential operation of the vessel.
(e) Type ``A'' vessels must be fitted with open rails for at least
half the length of the exposed parts of the weather deck. Where
superstructures are connected by trunks, open rails must be fitted for
the whole length of the exposed parts of the freeboard deck.
Subpart E_Unmanned River Barges on Lake Michigan Routes
Source: USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, unless otherwise
noted.
Sec. 45.171 Purpose.
(a) This subpart establishes a special load line regime under which
certain unmanned, river-service, dry-cargo barges may be exempted from
the normal Great Lakes load line requirements while operating on certain
Lake Michigan routes. Depending upon the route, the barge may only need
a limited service domestic voyage load line, or may be conditionally
exempted from load line assignment.
(b) Except as provided in this subpart, barges operating on Lake
Michigan must have either an international load line assignment issued
in accordance with the International Convention on Load Lines, 1966, as
amended, or a Great Lakes load line assignment issued in accordance with
the requirements of this part.
(c) The requirements of this subpart are summarized in table 45.171:
[[Page 88]]
[GRAPHIC] [TIFF OMITTED] TR06JN11.055
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70601,
Nov. 18, 2010; 75 FR 78928, Dec. 17, 2010; 76 FR 32326, June 6, 2011]
Sec. 45.173 Eligible barges.
Only barges meeting the following requirements are eligible for the
special load line regime under this subpart:
(a) Unmanned, river service, dry-cargo barges;
(b) Barges that have been designed and built to at least the minimum
scantlings of the American Bureau of Shipping River Rules which were in
effect at the time of construction;
(c) Barges with a length-to-depth ratio less than 22;
(d) Barges on the Milwaukee route must not be more than 10 years
old; and
(e) All weathertight and watertight closures (dogs, gaskets, covers,
etc.) must be in proper working condition.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70603,
Nov. 18, 2010]
Sec. 45.175 Applicable routes.
This subpart applies to the following routes, including intermediate
ports, on Lake Michigan, between Calumet Harbor, IL, and--
(a) Milwaukee, WI (the ``Milwaukee route'');
(b) Burns Harbor, IN (the ``Burns Harbor route'');
(c) St. Joseph, MI (the ``St. Joseph route''); and
(d) Muskegon, MI (the ``Muskegon route'').
[USCG-1998-4623, 75 FR 70604, Nov. 18, 2010]
[[Page 89]]
Sec. 45.177 Freeboard requirements.
(a) All barges must have a minimum freeboard of 24 inches (610 mm).
(b) Additionally, open hopper barges must have a combined freeboard
plus cargo box coaming height of at least 54 inches (1,372 mm).
Sec. 45.179 Cargo limitations.
(a) Only dry cargoes may be carried. Liquid cargoes, even in drums
or tank containers, may not be carried.
(b) Hazardous materials, as defined in part 148 of this chapter and
49 CFR chapter 1, subchapter C, may not be carried.
Sec. 45.181 Load line exemption requirements for the Burns Harbor and
Milwaukee routes.
Barges operating on the Burns Harbor and Milwaukee routes may be
conditionally exempted from load line assignment provided that the
following requirements are met:
(a) Registration. Before the barge's first voyage onto Lake
Michigan, the owner or operator must register the barge in writing with
the Commanding Officer, Marine Safety Unit Chicago, 555A Plainfield
Road, Willowbrook, IL, 60527. The registration may be faxed to MSU
Chicago in advance at (630) 986-2120, with the original following by
mail. The registration may be in any form, but must be signed by the
owner or operator. No load line exemption certificate will be returned.
However, the registration will be kept on file.
(b) The registration must include the following information:
(1) Barge name and official documentation number;
(2) Owner and operator (points-of-contact, company addresses and
telephone numbers);
(3) Service route (Milwaukee and/or Burns Harbor);
(4) Design type (covered/uncovered hopper, deck, etc.);
(5) External dimensions;
(6) Types of cargo; and
(7) Place built and original delivery date.
(c) The registration must include a statement certifying that:
(1) The barge has been designed and built to at least the minimum
scantlings of the ABS River Rules which were in effect at the time of
construction; and
(2) The owner or operator agrees to maintain the barge in
serviceable condition and comply with the applicable provisions of 46
CFR part 45, subpart E.
(d) Expiration. Registration is valid only until the earliest of the
following events:
(1) The tenth anniversary of the delivery date (for barges on the
Milwaukee route),
(2) The barge no longer is fit for this service (due to damage), or
(3) The barge changes ownership or operators (registration is not
transferable to new owners or operators; the barge must be re-registered
if it is to continue in Lake Michigan service).
(e) Notification. The owner or operator of an exempted barge must
notify the OCMI of the transfer of ownership or change of operator,
withdrawal from Lake Michigan service (due to damage, age, or other
circumstances), or other disposition of the barge.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended by USCG-2006-
25556, 72 FR 36330, July 2, 2007; 75 FR 70604, Nov. 18, 2010]
Sec. 45.183 Load line requirements for the St. Joseph and Muskegon
routes.
(a) Load line certificate. (1) The load line issued under this
subpart must be a limited-service, domestic-voyage load line.
(2) Except as provided under paragraph (b)(2)(vi) of this section,
the term of the certificate is 5 years.
(3) The load line certificate is valid for the St. Joseph and
Muskegon routes, and intermediate ports. However, operators must comply
with the route-specific requirements on the certificate.
(4) The freeboard assignment, operational limitations, and towboat
requirements of this subpart must appear on the certificate.
(b) Conditions of assignment. (1) An initial load line survey under
Sec. 42.09-25 of this chapter and subsequent annual surveys under Sec.
42.09-40 of this chapter are required.
(2) At the request of the barge owner, the initial load line survey
may be conducted with the barge afloat if the following conditions are
met:
(i) The barge is less than 10 years old;
[[Page 90]]
(ii) The draft during the survey does not exceed 15 inches (380
millimeters);
(iii) The barge is empty and thoroughly cleaned of all debris,
excessive rust, scale, mud, and water. All internal structure must be
accessible for inspection;
(iv) Gaugings are taken to the extent necessary to verify that the
scantlings are in accordance with approved drawings;
(v) The hull plating (bottom and sides) and stiffeners below the
light waterline are closely examined internally. If the surveyor
determines that sufficient cause exists, the surveyor may require that
the barge be drydocked or hauled out and further external examination
conducted; and
(vi) The initial load line certificate is to be issued for a term of
5 years or until the barge reaches 10 years of age, whichever occurs
first. Once this certificate expires, the barge must be drydocked or
hauled out and fully examined internally and externally.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70604,
Nov. 18, 2010]
Sec. 45.185 Tow limitations.
(a) Barges must not be manned.
(b) No more than a total of three barges per tow may operate on the
Milwaukee, St. Joseph, and Muskegon routes. A mixed tow of load-lined
and exempted barges is still limited to three barges on those routes.
(c) Tows must not be more than 5 nautical miles from shore.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70604,
Nov. 18, 2010]
Sec. 45.187 Weather limitations.
(a) Tows on the Burns Harbor route must operate during fair weather
conditions only.
(b) The weather limits (ice conditions, wave height, and sustained
winds) for the Milwaukee, St. Joseph, and Muskegon routes are specified
in Sec. 45.171, table 45.171.
(c) If weather conditions are expected to exceed these limits at any
time during the voyage, the tow must not leave harbor or, if already
underway, must proceed to the nearest appropriate harbor of safe refuge.
[USCG-1998-4623, 76 FR 32327, June 6, 2011]
Sec. 45.191 Pre-departure requirements.
Before beginning each voyage, the towing vessel master must conduct
the following:
(a) Weather forecast. Determine the marine weather forecast along
the planned route, and contact the dock operator at the destination port
to get an update on local weather conditions.
(b) Inspection. Inspect each barge of the tow to ensure that they
meet the following requirements:
(1) A valid load line certificate, if required, is on board;
(2) The barge is not loaded deeper than permitted;
(3) The deck and side shell plating are free of visible holes,
fractures, or serious indentations, as well as damage that would be
considered in excess of normal wear;
(4) The cargo box side and end coamings are watertight;
(5) All hatch and manhole dogs are in working condition, and all
covers are closed and secured watertight;
(6) All voids are free of excess water; and
(7) Precautions have been taken to prevent shifting of cargo.
(c) Verifications. On voyages north of St. Joseph, the towing vessel
master must contact a mooring/docking facility in St. Joseph, Holland,
Grand Haven, and Muskegon to verify that sufficient space is available
to accommodate the tow. The tow cannot venture onto Lake Michigan
without confirmed space available.
(d) Log entries. Before getting underway, the towing vessel master
must note in the logbook that the pre-departure barge inspections,
verification of mooring/docking space availability, and weather forecast
checks were performed, and record the freeboards of each barge.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70604,
Nov. 18, 2010; 75 FR 78928, Dec. 17, 2010; 76 FR 32327, June 6, 2011]
Sec. 45.193 Towboat power requirements.
The towing vessel must meet the following requirements:
(a) General. The towing vessel must have adequate horsepower (HP) to
handle the tow, but not less than the amount specified for the routes
below.
[[Page 91]]
(b) Milwaukee and St. Joseph routes: a minimum of 1,000 HP.
(c) Muskegon route: a minimum of 1,500 HP.
[USCG-1998-4623, 67 FR 19690, Apr. 23, 2002, as amended at 75 FR 70604,
Nov. 18, 2010]
Sec. 45.195 Additional equipment requirements for the Muskegon route.
Towboats on the Muskegon route must meet these additional equipment
requirements:
(a) Communication equipment. Two independent voice communication
systems in operable condition, such as Very High Frequency (VHF) radio,
radiotelephone, or cellular phone. At least two persons aboard the
vessel must be capable of using the communication systems.
(b) Cutting gear. Equipment that can quickly cut the towline at the
towing vessel. The cutting gear must be in operable condition and
appropriate for the type of towline being used, such as wire,
polypropylene, or nylon. At least two persons aboard the vessel must be
capable of using the cutting gear.