[Title 46 CFR 69]
[Code of Federal Regulations (annual edition) - October 1, 2006 Edition]
[Title 46 - SHIPPING]
[Chapter I - COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)]
[Subchapter G - DOCUMENTATION AND MEASUREMENT OF VESSELS]
[Part 69 - MEASUREMENT OF VESSELS]
[From the U.S. Government Publishing Office]
46SHIPPING22006-10-012006-10-01falseMEASUREMENT OF VESSELS69PART 69SHIPPINGCOAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)DOCUMENTATION AND MEASUREMENT OF VESSELS
PART 69_MEASUREMENT OF VESSELS--Table of Contents
Subpart A_General
Sec.
69.1 Purpose.
69.3 Applicability.
69.5 Vessels required or eligible to be measured.
69.7 Vessels transiting the Panama and Suez Canals.
69.9 Definitions.
69.11 Determining the measurement system or systems for a particular
vessel.
69.13 Deviating from the provisions of a measurement system.
69.15 Authorized measurement organizations.
69.17 Application for measurement services.
69.19 Remeasurement and adjustment of tonnage.
69.21 Right of appeal.
69.23 Fees.
69.25 Penalties.
[[Page 386]]
69.27 Delegation of authority to measure vessels.
69.29 OMB control numbers assigned under the Paperwork Reduction Act.
Subpart B_Convention Measurement System
69.51 Purpose.
69.53 Definitions.
69.55 Application for measurement services.
69.57 Gross tonnage.
69.59 Enclosed spaces.
69.61 Excluded spaces.
69.63 Net tonnage.
69.65 Calculation of volumes.
69.67 Marking of cargo spaces.
69.69 Issuance of an International Tonnage Certificate (1969).
69.71 Change of net tonnage.
69.73 Variance from the prescribed method of measurement.
69.75 Figures.
Subpart C_Standard Measurement System
69.101 Purpose.
69.103 Definitions.
69.105 Application for measurement services.
69.107 Gross and net tonnages.
69.109 Under-deck tonnage.
69.111 Between-deck tonnage.
69.113 Superstructure tonnage.
69.115 Excess hatchway tonnage.
69.117 Spaces exempt from inclusion in gross tonnage.
69.119 Spaces deducted from gross tonnage.
69.121 Engine room deduction.
69.123 Figures.
Subpart D_Dual Measurement System
69.151 Purpose.
69.153 Application of other laws.
69.155 Measurement requirements.
69.157 Definitions.
69.159 Application for measurement services.
69.161 Gross and net tonnages.
69.163 Under-deck tonnage.
69.165 Between-deck tonnage.
69.167 Superstructure tonnage.
69.169 Spaces exempt from inclusion in gross tonnage.
69.171 When the tonnage mark is considered submerged.
69.173 Tonnage assignments for vessels with only one deck.
69.175 Tonnage assignments for vessels with a second deck.
69.177 Markings.
69.179 Certification of markings.
69.181 Locating the line of the second deck.
69.183 Figures.
Subpart E_Simplified Measurement System
69.201 Purpose.
69.203 Definitions.
69.205 Application for measurement services.
69.207 Measurements.
69.209 Calculation of tonnages.
Authority: 46 U.S.C. 2301, 14103; Department of Homeland Security
Delegation No. 0170.1.
Source: CGD 87-015b, 54 FR 37657, Sept. 12, 1989, unless otherwise
noted.
Subpart A_General
Sec. 69.1 Purpose.
This part implements legislation concerning the measurement of
vessels to determine their tonnage (part J of 46 U.S.C. subtitle II).
Tonnages are required before a vessel may be documented as a vessel of
the United States. Also, tonnages are used to apply commercial vessel
safety regulations based on tonnage, to meet the requirements of the
International Convention on Tonnage Measurement of Ships, 1969, and to
determine Federal and State regulatory fees and private operational
charges based on tonnage. Tonnages are determined by the physical
measurement of a vessel (Convention, Standard, and Dual Measurement
Systems) or by application of a formula based on the vessel's dimensions
provided by the owner (Simplified Measurement System). This part
indicates the particular measurement system or systems under which the
vessel is required or eligible to be measured, describes the application
and measurement procedures for each system, identifies the organizations
authorized to measure vessels under this part, and provides for the
appeal of measurement organizations' decisions.
Sec. 69.3 Applicability.
This part applies to vessels of the United States over five net tons
(as that tonnage is determined under this part) which are required or
eligible to be measured under this part, a Federal law, or an
international agreement or which are subject to a Federal law or
international agreement based on the vessel's tonnage.
[[Page 387]]
Sec. 69.5 Vessels required or eligible to be measured.
(a) The following vessels (including public vessels) are required to
be measured under this part:
(1) Vessels that are to be documented as a vessel of the United
States.
(2) Vessels of 79 feet or more in overall length that engage on a
foreign voyage.
(3) Vessels subject to a Federal law or regulation based on vessel
tonnage.
(4) Vessels determined by the Commandant to require measurement
under this part.
(b) The following vessels are not required to be measured under this
part but are eligible to be measured, if the owner requests:
(1) Public vessels that are not to be documented and will not engage
on a foreign voyage.
(2) Vessels of war.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 92-058, 57
FR 59938, Dec. 17, 1992]
Sec. 69.7 Vessels transiting the Panama and Suez Canals.
(a) All vessels intending to transit the Panama Canal, other than
vessels of war, must be measured and certificated under the system
prescribed in 35 CFR part 135.
(b) All vessels intending to transit the Suez Canal must be measured
and certificated under the Arab Republic of Egypt Suez Canal Authority
Rules of Navigation, part IV.
(c) Panama Canal and Suez Canal tonnage certificates are in addition
to tonnage certificates issued under this part.
(d) Tonnage measurement services for Panama Canal and Suez Canal
certificates are provided by measurement organizations authorized by the
respective canal authority.
Sec. 69.9 Definitions.
As used in this part--
Commandant means Commandant of the Coast Guard at the following
address: Commanding Officer, Marine Safety Center, 400 7th Street, SW.,
Washington, DC 20590-0001.
Convention means the International Convention on Tonnage Measurement
of Ships, 1969.
Convention Measurement System means the system under subpart B of
this part.
Dual Measurement System means the system under subpart D of this
part.
Great Lakes means the Great Lakes of North America and the St.
Lawrence River west of a rhumb line drawn from Cap des Rosiers to West
Point, Anticosti Island, and, on the north side of Anticosti Island, the
meridian of longitude 63 degrees west.
Gross tonnage means a vessel's approximate volume. Under the
Convention Measurement System, it means the total volume of all enclosed
spaces modified by a coefficient. Under the Standard and Dual
Measurement Systems, it means the total volume of all enclosed spaces
less certain exempt spaces. Under the Simplified Measurement Systems, it
means the product of a vessel's length, depth, and breadth modified by a
coefficient.
National Vessel Documentation Center means the organizational unit
designated by the Commandant to process vessel documentation
transactions and maintain vessel documentation records. The address can
be found in Sec. 67.3 of this subchapter.
Net tonnage means a measure of a vessel's earning capacity. Under
the Convention Measurement System, it means the volume of the actual
cargo and passenger spaces modified by a formula based on the vessel's
volume. Under the Standard and Dual Measurement Systems, it means the
gross tonnage less certain deducted spaces. Under the Simplified
Measurement System, it means the gross tonnage modified by a
coefficient.
Overall length means the horizontal distance between the foremost
part of a vessel's stem to the aftermost part of its stern, excluding
fittings and attachments.
Simplified Measurement System means the system under subpart E of
this part.
Standard Measurement System means the system under subpart C of this
part.
Tonnage means the volume of a vessel's enclosed spaces as calculated
under a measurement system in this part. Tonnage calculated under the
[[Page 388]]
Standard, Dual, or Simplified Measurement System is based on tons of 100
cubic feet each. Tonnage calculated under the Convention Measurement
System is based on tons of 100 cubic feet modified by a logarithmic
function.
Vessel engaged on a foreign voyage means a vessel--
(a) Arriving at a place under the jurisdiction of the United States
from a place in a foreign country;
(b) Making a voyage between places outside of the United States;
(c) Departing from a place under the jurisdiction of the United
States for a place in a foreign country; or
(d) Making a voyage between a place within a territory or possession
of the United States and another place under the jurisdiction of the
United States not within that territory or possession.
Vessel of war means ``vessel of war'' as defined in 46 U.S.C. 2101.
[GCD 89-007; GCD 89-007a, 58 FR 60266, Nov. 15, 1993, 58 FR 65131, Dec.
13, 1993, as amended by CGD 95-014, 60 FR 31606, June 15, 1995; CGD 95-
072, 60 FR 50463, Sept. 29, 1995; 60 FR 54106, Oct. 19, 1995; CGD 96-
041, 61 FR 50728, Sept. 27, 1996]
Sec. 69.11 Determining the measurement system or systems for a particular
vessel.
(a) Convention Measurement System (subpart B). (1) Except as
otherwise provided in this section, this system applies to a vessel
documented or to be documented under part 67 of this chapter and to a
vessel engaged on a foreign voyage.
(2) This system does not apply to the following vessels:
(i) A vessel of less than 79 feet in overall length.
(ii) A vessel operating only on the Great Lakes, unless the owner
requests measurement under this system.
(iii) A vessel that is not engaged on a foreign voyage and that had
its keel laid or was at a similar stage of construction before January
1, 1986, unless the owner requests measurement under the Convention
Measurement System or unless, on or after January 1, 1986, the vessel
undergoes a change that the Commandant finds substantially affects the
vessel's gross tonnage.
(iv) A vessel of war.
(v) A non-self-propelled vessel not engaged on a foreign voyage,
unless the owner requests measurement under this system.
(3) A vessel made subject to this system at the request of the owner
may be remeasured only under this system.
(4) For the purpose of vessel documentation, a vessel measured under
this system is not required to be measured under another system.
(5) A vessel the keel of which was laid or that was at a similar
stage of construction before July 18, 1982, (except a vessel measured
under this system at the request of the owner or because of a change
that substantially affects the vessel's gross tonnage) may retain its
tonnage in effect on July 18, 1994, for the application of relevant
requirements under an international agreement (except the Convention) or
other laws of the United States. However, if the vessel undergoes a
change after July 18, 1994, that the Commandant finds substantially
affects the vessel's gross tonnage, the vessel must be remeasured only
under this system.
(6) A tonnage assignment under this system does not affect the
applicability to the vessel of international agreements to which the
United States Government is a party that are not in conflict with the
Convention or with the application of International Maritime
Organization (IMO) Resolutions A.494(XII) of November 19, 1981,
A.540(XIII) of November 17, 1983, and A.541(XIII) of November 17, 1983.
When applicable to the vessel, these Resolutions provide interim schemes
for using the vessel's existing gross tonnage, instead of the gross
tonnage under the Convention Measurement System, for applying the
International Convention for the Safety of Life at Sea (SOLAS), the
International Convention on Standards of Training, Certification, and
Watchkeeping for Seafarers, 1978, (STCW), and the International
Convention for the Prevention of Pollution from Ships, 1973, (MARPOL),
respectively.
(b) Standard Measurement System (subpart C). This system applies to
a vessel not required to be measured under the Convention Measurement
System if the vessel is to be documented or if the application of a law
of the United States
[[Page 389]]
to the vessel depends on the vessel's tonnage. Upon request of the
owner, this system also applies to a documented vessel measured under
the Convention Measurement System when Standard Measurement System
tonnages are to be used in applying the provisions of a law under 46
U.S.C. 14305.
(c) Dual Measurement System (subpart D). This system may be applied,
at the owner's option, instead of the Standard Measurement System, to a
vessel eligible or required to be measured under the Standard
Measurement System.
(d) Simplified Measurement System (subpart E). This system may be
applied, at the owner's option, instead of the Standard Measurement
System to the following vessels:
(1) A vessel that is under 79 feet in overall length.
(2) A vessel of any length that is non-self-propelled and not
engaged on a foreign voyage.
(3) A vessel of any length that is operated only for pleasure and
operated only on the Great Lakes.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 92-058, 57
FR 59938, Dec. 17, 1992; CGD 95-028, 62 FR 51203, Sept. 30, 1997]
Sec. 69.13 Deviating from the provisions of a measurement system.
(a) In measuring a vessel under a measurement system in this part,
all provisions of that system applicable to the vessel must be observed.
(b) The provisions of more than one measurement system may not be
applied interchangeably or combined.
Sec. 69.15 Authorized measurement organizations.
(a) Except as under paragraphs (c) and (d) of this section, all U.S.
vessels to be measured or remeasured under the Convention, Standard, or
Dual Measurement Systems must be measured by an authorized measurement
organization meeting the requirements of Sec. 69.27. A current listing
of authorized measurement organizations can be obtained from Commanding
Officer, U.S. Coast Guard Marine Safety Center (MSC-3), 400 7th Street
S.W., Washington, DC 20590-0001.
(b) All vessels to be measured or remeasured under the Simplified
Measurement System must be measured by the Coast Guard. Applications for
measurement under the Simplified Measurement System are obtainable from
the National Vessel Documentation Center.
(c) All U.S. Coast Guard vessels and all U.S. Navy vessels of war to
be measured or remeasured under any measurement system must be measured
by the Coast Guard.
(d) At the option of the Commandant, the Coast Guard may measure any
vessel to determine its tonnage.
(e) The appropriate certificate of measurement is issued by the
measuring organization as evidence of the vessel's measurement under
this part.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 92-058, 57
FR 59938, Dec. 17, 1992; CGD 92-053, 59 FR 50508, Oct. 4, 1994; CGD 95-
014, 60 FR 31606, June 15, 1995; CGD 97-057, 62 FR 51045, Sept. 30,
1997]
Sec. 69.17 Application for measurement services.
(a) Applications for measurement are available from and, once
completed, are submitted to the authorized measurement organization that
will perform the services. The contents of the application are described
in this part under the requirement for each system.
(b) Applications for measurement under more than one system may be
combined.
(c) For vessels under construction, the application must be
submitted before the vessel is advanced in construction. Usually, this
means as soon as the decks are laid, holds cleared of encumbrances,
engine and boilers installed, and accommodations partitioned.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997]
Sec. 69.19 Remeasurement and adjustment of tonnage.
(a) If a vessel that is already measured is to undergo a structural
alteration or if the use of a space within that vessel is to be changed,
a remeasurement may be required. Vessel owners shall report immediately
to an authorized measurement organization any intent to structurally
alter the vessel or to change the use of a space
[[Page 390]]
within the vessel. The organization advises the owner if remeasurement
is necessary. Spaces not affected by the alteration or change need not
be remeasured.
(b) When there is a perceived error in the application of a
regulation or in the tonnage calculations, the vessel owner should
contact the responsible measurement organization. If the error is
verified, the tonnage is adjusted as necessary.
(c) If a remeasurement or adjustment of tonnage is required, the
organization will issue a new tonnage certificate. If the vessel is
documented, the vessel's owner must surrender the Certificate of
Documentation as required under part 67, subpart 67.25, of this chapter.
(d) A vessel of less than 79 feet in overall length measured under
the Standard or Dual Measurement Systems may be remeasured at the
owner's request under the Simplified Measurement System.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997]
Sec. 69.21 Right of appeal.
Any person directly affected by a decision or action taken under
this part, by or on behalf of the Coast Guard, may appeal therefrom in
accordance with subpart 1.03 of this chapter.
[CGD 88-033, 54 FR 50380, Dec. 6, 1989]
Sec. 69.23 Fees.
Measurement organizations are authorized to charge a fee for
measurement services. Information on fees is available directly from the
organizations.
[CGD 97-057, 62 FR 51045, Sept. 30, 1997]
Sec. 69.25 Penalties.
(a) General violation. The owner, charterer, managing operator,
agent, master, and individual in charge of a vessel in violation of a
regulation in this part are each liable to the United States Government
for a civil penalty of not more than $20,000. Each day of a continuing
violation is a separate violation. The vessel also is liable in rem for
the penalty.
(b) False Statements. A person knowingly making a false statement or
representation in a matter in which a statement or representation is
required by this part is liable to the United States Government for a
civil penalty of not more than $20,000 for each false statement or
representation. The vessel also is liable in rem for the penalty.
Sec. 69.27 Delegation of authority to measure vessels.
(a) Under 46 U.S.C. 14103 and 49 CFR 1.46, the Coast Guard is
authorized to delegate to a ``qualified person'' the authority to
measure vessels and to issue appropriate certificates of measurement for
U.S. vessels that are required or eligible to be measured as vessels of
the United States.
(b) Authority to measure and certify U.S. vessels under the
Convention, Standard, and Dual Measurement Systems may be delegated to
an organization that--
(1) Is a full member of the International Association of
Classification Societies (IACS);
(2) Is incorporated under the laws of the United States, a State of
the United States, or the District of Columbia;
(3) In lieu of the requirements in paragraphs (b)(1) and (2) of this
section, is a recognized classification society under the requirements
of 46 CFR part 8.
(4) Is capable of providing all measurement services under the
Convention, Standard, and Dual Measurement Systems for vessels
domestically and internationally;
(5) Maintains a tonnage measurement staff that has practical
experience in measuring U.S. vessels under the Convention, Standard, and
Dual Measurement Systems; and
(6) Enters into a written agreement, as described in paragraph (d)
of this section.
(c) Applications for delegation of authority under this section must
be forwarded to the Commandant and include the following information on
the organization:
(1) Its name and address.
(2) Its organizational rules and structure.
[[Page 391]]
(3) The location of its offices that are available to provide
measurement services under the Convention, Standard, and Dual
Measurement Systems.
(4) The name, qualifications, experience, and job title of each
full-time or part-time employee or independent contractor specifically
designated by the organization to provide measurement services under the
Convention, Standard, or Dual Measurement Systems.
(5) Its tonnage measurement training procedures.
(d) If, after reviewing the application, the Coast Guard determines
that the organization is qualified to measure and certify U.S. vessels
on behalf of the Coast Guard, the organization must enter into a written
agreement with the Coast Guard which--
(1) Defines the procedures for administering and implementing the
tonnage measurement and certification processes, including the roles and
responsibilities of each party;
(2) Outlines the Coast Guard's oversight role;
(3) Prohibits the organization from using an employee or contractor
of the organization to measure and certify the tonnage of a vessel if
that employee or contractor is acting or has acted as a tonnage
consultant for that same vessel; and
(4) Requires the organization to--
(i) Accept all requests to perform delegated services without
discrimination and without regard to the vessel's location, unless
prohibited from doing so under the laws of the United States or under
the laws of the jurisdiction in which the vessel is located;
(ii) Physically inspect each vessel before issuing a tonnage
certificate;
(iii) Provide the Coast Guard with current schedules of measurement
fees and related charges;
(iv) Maintain a tonnage measurement file for each U.S. vessel that
the organization measures and permit access to the file by any person
authorized by the Commandant;
(v) Permit observer status representation by the Coast Guard at all
formal discussions that may take place between the organization and
other vessel tonnage measurement organizations pertaining to tonnage
measurement of U.S. vessels or to the systems under which U.S. vessels
are measured;
(vi) Comply with and apply all laws and regulations relating to
tonnage measurement of U.S. vessels within the scope of authority
delegated; and
(vii) Comply with all other provisions, if any, of the written
agreement.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997; CGD 95-010, 62 FR 67536, Dec. 24, 1997]
Sec. 69.29 OMB control numbers assigned under the Paperwork Reduction Act.
(a) Purpose. This section collects and displays the control numbers
assigned to information collection and record keeping requirements in
this part by the Office of Management and Budget (OMB) pursuant to the
Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast
Guard intends that this part comply with 44 U.S.C. 3507(f), which
requires that agencies display the current control number assigned by
the Director of OMB for each approved agency information collection
requirement.
(b) Display--
------------------------------------------------------------------------
Currently
assigned
Section of 46 CFR part 69 OMB control
No.
------------------------------------------------------------------------
69.17...................................................... 1625-0022
69.19...................................................... 1625-0022
69.21...................................................... 1625-0022
69.27...................................................... 1625-0022
69.55...................................................... 1625-0022
69.105..................................................... 1625-0022
69.121(d).................................................. 1625-0022
69.159..................................................... 1625-0022
69.179..................................................... 1625-0022
69.205..................................................... 1625-0022
------------------------------------------------------------------------
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2004-
18884, 69 FR 58346, Sept. 30, 2004]
Subpart B_Convention Measurement System
Sec. 69.51 Purpose.
This subpart prescribes the requirements for measuring a vessel in
order to comply with the International Convention on Tonnage Measurement
of Ships, 1969 (Convention), and 46 U.S.C. chapter 143.
[[Page 392]]
Sec. 69.53 Definitions.
As used in this subpart--
Amidships means the midpoint of the registered length, as
``registered length'' is defined in this section.
Cargo space means an enclosed space appropriated for the transport
of cargo which is to be discharged from the vessel. The term does not
include a space which qualifies as an excluded space under Sec. 69.61.
Enclosed space is defined in Sec. 69.59.
Excluded space is defined in Sec. 69.61.
Gross tonnage or GT means the tonnage determined under Sec. 69.57.
Line of the upper deck means a longitudinal line at the underside of
the upper deck or, if that deck is stepped, the longitudinal line of the
underside of the lowest portion of that deck parallel with the upper
portions of that deck.
Molded depth means the vertical distance amidships between the
following points:
(a) From the line of the upper deck at the vessel's side or, if the
vessel has rounded gunwales, from the intersection of the line of the
upper deck extended to the molded line of the shell plating as though
the gunwales were of angular design.
(b) To the top of the flat keel, to the lower edge of the keel
rabbet if the vessel is of wood or composite structure, or to the point
where the line of the flat of the bottom extended inward cuts the side
of the keel if the vessel's lower part is hollow or has thick garboards.
Molded draft means--
(a) For vessels assigned a load line under parts 42, 44, 45, or 47
of this chapter, the draft corresponding to the Summer Load Line (other
than a timber load line);
(b) For passenger vessels assigned a load line under part 46 of this
chapter, the draft corresponding to the deepest subdivision load line
assigned;
(c) For vessels to which parts 42, 44, 45, 46, or 47 of this chapter
do not apply but which otherwise have been assigned a load line, the
draft corresponding to the Summer Load Line so assigned;
(d) For vessels to which no load line has been assigned but the
draft of which is restricted under any Coast Guard requirement, the
maximum draft permitted under the restriction; and
(e) For other vessels, 75 per cent of the molded depth.
Net tonnage or NT means tonnage determined under Sec. 69.63.
Passenger means a person on board a vessel other than--
(a) The master, a member of the crew, or other person employed or
engaged in any capacity in the business of the vessel; and
(b) A child under one year of age.
Registered breadth means the maximum breadth of a 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 all other vessels.
Registered length means either 96 percent of the length on a
waterline at 85 percent of the least molded depth measured from the top
of the flat keel or the length from the fore side of the stem to the
axis of the rudder stock on that waterline, whichever is greater. In
vessels designed with a rake of keel, this length is measured on a
waterline parallel to the design waterline.
Upper deck means the uppermost complete deck exposed to weather and
sea, which has permanent means of weathertight closing of all openings
in the weather part of the deck, and below which all openings in the
sides of the vessel are fitted with permanent means of watertight
closing.
Weathertight means secure against penetration of water into the
vessel in any sea condition.
Sec. 69.55 Application for measurement services.
Applications for measurement under this subpart must include the
following information and plans:
(a) Type of vessel.
(b) Vessel's name and official number (if assigned).
(c) Builder's name and the vessel hull number assigned by builder.
(d) Place and year built.
(e) Date keel was laid.
(f) Overall length, breadth, and depth of vessel.
(g) Lines plan.
(h) Booklet of offsets at stations.
[[Page 393]]
(i) Capacity plans for tanks and cargo compartments.
(j) Hydrostatic curves.
(k) Construction plans showing measurements and scantlings of deck
structures, hatches, appendages, recesses, and other enclosed spaces.
(l) Arrangement plans.
[GCD 89-007; GCD 89-007a, 58 FR 60266, Nov. 15, 1993, 58 FR 65131, Dec.
13, 1993, as amended by CGD 95-014, 60 FR 31606, June 15, 1995]
Sec. 69.57 Gross tonnage.
Gross tonnage (GT) is determined by the following formula
GT=K1 V, in which V=total volume of all enclosed spaces in
cubic meters and K1=0.2+0.02 log10 V.
Sec. 69.59 Enclosed spaces.
Enclosed space means a space which is bounded by the vessel's hull,
by fixed or portable partitions or bulkheads, or by decks or coverings
other than permanent or movable awnings. No break in a deck, nor any
opening in the vessel's hull, in a deck or in a covering of a space, or
in the partitions or bulkheads of a space, nor the absence of a
partition or bulkhead precludes the space from being included in the
enclosed space.
Sec. 69.61 Excluded spaces.
(a) Excluded space means an enclosed space which is excluded from
volume (V) in calculating gross tonnage. Except as under paragraph (g)
of this section, this section lists the excluded spaces.
(b) A space that is within a structure and that is opposite an end
opening extending from deck to deck (except for a curtain plate of a
height not exceeding by more than one inch the depth of the adjoining
deck beams) and having a breadth equal to or greater than 90 percent of
the breadth of the deck at the line of the opening is an excluded space,
subject to the following:
(1) Only the space between the actual end opening and a line drawn
parallel to the line or face of the opening at a distance from the
opening equal to one-half of the breadth of the deck at the line of the
opening is excluded. (See Sec. 69.75, figure 1.)
(2) If, because of any arrangement (except convergence of the
outside plating as shown in Sec. 69.75, figure 3), the breadth of the
space is less than 90 percent of the breadth of the deck, only the space
between the line of the opening and a parallel line drawn through the
point where the athwartship breadth of the space is equal to 90 percent
or less of the breadth of the deck is excluded. (See Sec. 69.75,
figures 2 and 4.)
(3) When any two spaces, either of which is excluded under
paragraphs (b)(1) or (b)(2) of this section, are separated by an area
that is completely open except for bulwarks or open rails, these two
spaces must not be excluded if the separation between the two spaces is
less than the least half breadth of the deck in way of the separation.
(See Sec. 69.75, figures 5 and 6.)
(4) When the deck at the line of an opening has rounded gunwales,
the breadth of the deck is the distance between the tangent points
indicated in Sec. 69.75, figure 11.
(c) A space that is open to the weather and that is under an
overhead deck covering with no connection on the space's exposed sides
between the covering and the deck other than the stanchions necessary
for the covering's support is an excluded space. An open rail or bulwark
fitted at the vessel's side does not disqualify the space from being an
excluded space if the height between the top of the rail or bulwark and
the overhead structure or curtain plate (if fitted) is not less than 2.5
feet or one-third of the height of the space, whichever is greater. (See
Sec. 69.75, figure 7.)
(d) A space in a side-to-side structure directly in way of opposite
side openings not less than 2.5 feet in height or one-third of the
height of the structure, whichever is greater, is an excluded space. If
the opening is only on one side of the structure, the space to be
excluded is limited inboard from the opening to a maximum of one-half of
the breadth of the deck in way of the opening. (See Sec. 69.75, figure
8.)
(e) A space in a structure immediately below an uncovered opening in
the deck overhead is an excluded space, if the opening is exposed to the
weather and the space to be excluded is limited to the area of the
opening. (See Sec. 69.75, figure 9.)
[[Page 394]]
(f) A recess in the boundary bulkhead of a structure which is
exposed to the weather and which has an opening that extends from deck
to deck without a means of closing is an excluded space, if the interior
width of the space is not greater than the width of the opening and
extension of the space into the structure is not greater than twice the
width of the opening. (See Sec. 69.75, figure 10.)
(g) Any space described in paragraphs (b) through (f) of this
section which fulfills at least one of the following conditions is not
an excluded space:
(1) The space is fitted with shelves or other means designed for
securing cargo or stores.
(2) The opening that would otherwise permit the space to be excluded
space is fitted with a means of closure.
(3) Other features of the space make it possible for the space to be
closed.
Sec. 69.63 Net tonnage.
Net tonnage (NT) is determined by the formula:
[GRAPHIC] [TIFF OMITTED] TR30SE97.006
in which:
Vc = total volume of cargo spaces in cubic meters.
K2 = 0.2 + 0.02 log10 Vc.
[GRAPHIC] [TIFF OMITTED] TR30SE97.007
D = molded depth amidships in meters, as ``molded depth'' is defined in
Sec. 69.53.
d = molded draft amidships in meters, as ``molded draft'' is defined in
Sec. 69.53.
N1 = number of passengers in cabins with not more than eight
berths, as ``passenger'' is defined in Sec. 69.53.
N2 = number of other passengers, as ``passenger'' is defined
in Sec. 69.53.
GT = gross tonnage as determined under Sec. 69.57.
N1 plus N2 must equal the total number of
passengers the vessel is permitted to carry as indicated on the ship's
Passenger Certificate. If N1 plus N2 is less than
13, both N1 and N2 are zero.
[GRAPHIC] [TIFF OMITTED] TR30SE97.008
NT must not be less than 0.30 GT.
[CGD 97-057, 62 FR 51045, Sept. 30, 1997]
Sec. 69.65 Calculation of volumes.
(a) Volumes V and Vc used in calculating gross and net
tonnages, respectively, must be measured and calculated according to
accepted naval architectural practices for the spaces concerned.
(b) The volume of the hull below the upper deck is determined as
follows:
(1) If the number and location of sections originally used in making
other calculations which relate to the form of the vessel (such as
displacement volumes and center of buoyancy) are reasonably available,
Simpson's first rule may be applied using those sections.
(2) If the number and location of stations originally used are not
reasonably available or do not exist and the hull is of conventional
design with faired lines, Simpson's first rule may be applied using a
number and location of stations not less than those indicated in Sec.
69.109(g)(1).
(3) If the hull is of standard geometric shape, a simple geometric
formula that yields a more accurate volume may be used.
(4) If the lines of the hull are not fair, the volume may be
measured by using a combination of methods under this section.
(c) The volume of structures above the upper deck may be measured by
applying the superstructure provisions in Sec. 69.113 or by any
accepted method or combinations of methods.
(d) Measurements must be taken, regardless of the fitting of
insulation or the like--
(1) To the inner side of the shell or structural boundary plating,
in vessels constructed of metal; and
(2) To the outer surface of the shell or to the inner side of
structural boundary surfaces, in all other vessels.
(e) When determining the volume of a cargo space, measurements must
be
[[Page 395]]
taken without consideration for insulation, sparring, or ceiling fitted
within the space.
(f) Measurements must be to the nearest one-twentieth of a foot.
(g) Calculations must be made on a worksheet and must be
sufficiently detailed to permit easy review. The measurement procedures
used must be identified on the worksheet.
Sec. 69.67 Marking of cargo spaces.
Cargo spaces used in determining volume (Vc) for calculating net
tonnage must be permanently marked with the letters ``CC'' (cargo
compartment) which are at least four inches in height and positioned so
as to be visible at all times.
Sec. 69.69 Issuance of an International Tonnage Certificate (1969).
On request of the vessel owner, an International Tonnage Certificate
(1969) is issued for a vessel measured under this subpart that is 79
feet or more in registered length and that will engage on a foreign
voyage. The Certificate is issued to the vessel owner or master and must
be maintained on board the vessel when it is engaged on a foreign
voyage.
Sec. 69.71 Change of net tonnage.
(a) When a vessel is altered so that the net tonnage is increased,
the new net tonnage must be applied immediately.
(b) A vessel concurrently assigned load lines under both the
International Convention on Load Lines and either the International
Convention for the Safety of Life at Sea (SOLAS) or other international
agreement must be assigned only one net tonnage. The net tonnage
assigned must be the net tonnage applicable to the load line assigned
under the International Convention on Load Lines, SOLAS or other
international agreement for the trade in which the vessel in engaged.
(c) When a vessel is altered so that the net tonnage is decreased or
the vessel's trade is changed so that the load line assigned for that
trade under paragraph (b) of this section is no longer appropriate and
results in a decrease in its net tonnage, a new International Tonnage
Certificate (1969) incorporating that net tonnage may not be issued
until twelve months after the date on which the current Certificate was
issued. However, if one of the following apply, a new Certificate may be
issued immediately:
(1) The vessel is transferred to the flag of another nation.
(2) The vessel undergoes alterations or modifications which the
Coast Guard deems to be of a major character, such as the removal of a
superstructure which requires an alteration of the assigned load line.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-1999-6216,
64 FR 53225, Oct. 1, 1999]
Sec. 69.73 Variance from the prescribed method of measurement.
(a) When application of this subpart to a novel type vessel produces
unreasonable or impractical results, the Commandant may determine a more
suitable method of measurement.
(b) Requests for a determination must be submitted to the
Commandant, explaining the problem, and including plans and sketches of
the spaces in question.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997; USCG-1999-6216, 64 FR 53225, Oct. 1, 1999]
Sec. 69.75 Figures.
0=excluded space.
C=enclosed space.
I=space to be considered as an enclosed space.
B=breadth of deck in way of the opening.
[[Page 396]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.040
[[Page 397]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.041
Subpart C_Standard Measurement System
Sec. 69.101 Purpose.
This subpart prescribes the procedures for measuring a vessel under
the Standard Measurement System described in 46 U.S.C. 14512.
Sec. 69.103 Definitions.
As used in this subpart--
[[Page 398]]
Between-deck means the space above the line of the tonnage deck and
below the line of the deck next above.
Break means the space between the line of a deck and the upper
portion of that deck, in cases where that deck is stepped and continued
at a higher elevation.
Camber means the perpendicular rise or crown of a deck at the
centerline of the vessel measured above the skin of the vessel at the
vessel's sides.
Ceiling means the permanent planking or plating fitted directly on
the inboard side of frames, floors, or double bottom and includes cargo
battens and refrigeration insulation but does not include false ceiling
which stands off from the framing.
Coaming means both the vertical plating around a hatch or skylight
and the sill below an opening in a bulkhead.
Deckhouse means a structure that is on or above the uppermost
complete deck and that does not extend from side to side of the vessel.
The term includes cabin trunks and closed-in spaces over the holds of
vessels.
Depth of frame means the perpendicular depth of a bottom frame and
the athwart distance between the inboard and outboard faces of a side
frame.
Double bottom means a space at the bottom of a vessel between the
inner and outer bottom plating and used solely for water ballast.
Floor means a vertical plate or timber extending from bilge to bilge
in the bottom of a vessel. In a wooden vessel, ``floor'' means the
lowermost timber connecting the main frames at the keel when that timber
extends the full depth of the frames to which it is fastened. In a
double bottom, floors usually extend from the outer to the inner bottom.
Gross tonnage is defined in Sec. 69.107(a).
Hatch means an opening in a deck through which cargo is laden or
discharged.
Line of tonnage deck means the line determined under Sec.
69.109(e).
Line of uppermost complete deck means the line determined under
Sec. 69.111(b).
Net tonnage is defined in Sec. 69.107(b).
Registered breadth is defined in Sec. 69.53.
Registered depth means ``molded depth'' as defined in Sec. 69.53.
Registered length is defined in Sec. 69.53.
Shelter deck means the uppermost deck that would have qualified as
the uppermost complete deck had it not been fitted with a middle line
opening.
Step means a cutoff in a deck or in the bottom, top, or sides of a
space resulting in varying heights of a deck or varying heights or
widths of a space.
Superstructure means all permanent structures (such as forecastle,
bridge, poop, deckhouse, and break) on or above the line of the
uppermost complete deck or, if the vessel has a shelter deck, on or
above the line of the shelter deck.
Tonnage deck is defined in Sec. 69.109(c).
Tonnage length is defined in Sec. 69.109(f).
Uppermost complete deck means the uppermost deck--
(a) Which extends from stem to stern and from side to side at all
points of its length;
(b) The space below which is enclosed by the sides of the vessel;
(c) Through which there is no opening that would exempt the space
below from being included in gross tonnage; and
(d) Below which there is no opening through the hull that would
exempt the space below from being included in gross tonnage.
Sec. 69.105 Application for measurement services.
Applications for measurement services under this subpart must
include the following information and plans:
(a) Type of vessel.
(b) Vessel's name and official number (if assigned).
(c) Builder's name and the vessel hull number assigned by the
builder.
(d) Place and year built.
(e) Date keel was laid.
(f) Overall length, breadth, and depth of vessel.
(g) Lines plan.
(h) Booklet of offsets.
(i) Capacity plans for tanks
(j) Construction plans showing measurements and scantlings of hull
and superstructure.
(k) Tonnage drawing showing tonnage length in profile and tonnage
sections.
[[Page 399]]
(l) Arrangement plans.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 95-014, 60
FR 31606, June 15, 1995]
Sec. 69.107 Gross and net tonnages.
(a) Gross tonnage is the sum of the following tonnages, less certain
spaces exempt under Sec. 69.117:
(1) Under-deck tonnage (Sec. 69.109).
(2) Between-deck tonnage (Sec. 69.111).
(3) Superstructure tonnage (Sec. 69.113).
(4) Excess hatchway tonnage (Sec. 69.115(c)).
(5) Tonnage of framed-in propelling machinery spaces included in
calculating gross tonnage (Sec. 69.121(d)(1)).
(b) Net tonnage is gross tonnage less deductions under Sec. Sec.
69.119 and 69.121.
Sec. 69.109 Under-deck tonnage.
(a) Defined. ``Under-deck tonnage'' means the tonnage of the space
below the line of the tonnage deck, as that volume is calculated under
this section.
(b) Method of calculating tonnage. Under-deck tonnage is calculated
by applying Simpson's first rule using the tonnage length and the areas
of the transverse sections prescribed by this section.
(c) Identifying the tonnage deck. In vessels with two or less decks,
the tonnage deck is the uppermost complete deck. In vessels with more
than two decks, the tonnage deck is the second deck from the keel as
determined in paragraph (d) of this section.
(d) Enumerating the decks to identify the second deck from the keel.
Only decks without openings that permit space below to be exempt from
inclusion in under-deck tonnage are enumerated. Partial decks are not
considered decks for the purpose of enumerating decks. However, the
presence of engine and boiler casings, peak tanks, or cofferdams that
penetrate a deck do not disqualify the deck from being enumerated.
(e) Identifying the line of the tonnage deck. (1) If the tonnage
deck runs in a continuous line from stem to stern, the line of the
tonnage deck is the longitudinal line at the underside of the tonnage
deck.
(2) If the tonnage deck runs at different levels from stem to stern,
the line of the tonnage deck is the longitudinal line of the underside
of the lowest portion of that deck parallel with the upper portions of
that deck. (See Sec. 69.123, figures 1 and 2.) Spaces between the line
of the tonnage deck and the higher portions of that deck are not
included in under-deck tonnage.
(f) Tonnage length. (1) ``Tonnage length'' means the length of a
horizontal straight line measured at the centerline of the vessel from
the point forward where the line of the tonnage deck intersects the line
of the inboard faces of the ordinary side frames to the point aft where
the line of the tonnage deck intersects the inboard face of the transom
frames or cant frames. (See Sec. 69.123, figure 3.)
(2) For a vessel having a headblock or square end with framing which
extends from the tonnage deck to the bottom of the vessel, the tonnage
length terminates on the inboard face of the head block or end framing.
When a headblock extends inboard past the face of the end side frames or
when the headblock plates are excessive in length, the tonnage length
terminates at the extreme end of the vessel less a distance equal to the
thickness of an ordinary side frame and shell plating. (See Sec.
69.123, figure 4.)
(3) For a vessel having a square bow or stern and tonnage deck with
camber, the effect of the camber on the tonnage length must be
considered. The tonnage length must be measured below the tonnage deck
at a distance equal to one-third of round camber and one-half of
straight pitch camber.
(g) Division of vessel into transverse sections. (1) Except as under
paragraph (m)(1)(iii) of this section, the tonnage length is divided
into an even number of equal parts as indicated in the following table:
------------------------------------------------------------------------
Class Tonnage length Divisions
------------------------------------------------------------------------
1................................... 50 ft. or less......... 6
2................................... Over 50 ft. but not 8
exceeding 100 ft.
3................................... Over 100 ft. but not 10
exceeding 150 ft.
4................................... Over 150 ft. but not 12
exceeding 200 ft.
5................................... Over 200 ft. but not 14
exceeding 250 ft.
6................................... Over 250 ft............ 16
------------------------------------------------------------------------
[[Page 400]]
(2) Transverse sections are cut at each end of the tonnage length
and at each point of division of the tonnage length. Intervals and one-
third intervals between the points of division are measured to the
nearest thousandth of a foot. (See Sec. 69.123 figures 5 and 6.)
(h) Depths of transverse sections. (1) Transverse section depths are
measured at each point of division of the tonnage length at the
centerline of the vessel from a point below the line of the tonnage deck
equal to one-third of the camber or to one-half of the pitch of the beam
down to the upper side of the ordinary frames, floors, longitudinals, or
tank top of a cellular double bottom, as the case may be.
(2) When a depth falls at a point where the tank top of a double
bottom has a straight fall from centerline to the wings, the depth
terminates at one-half of the height of fall. (See Sec. 69.123 figure
8.)
(3) When a depth falls at a point where the tank top of a double
bottom rises from the centerline to the wings, the depth terminates at
one-half the dead rise. (See Sec. 69.123, figure 9.)
(4) The depth at the midpoint of the tonnage length or, when a
vessel is measured in parts, the depth at the midpoint of each part
determines the number of equal parts into which each depth is divided,
as follows:
(i) If the midpoint depth is 16 feet or less, each depth is divided
into four equal parts. If the midpoint depth exceeds 16 feet, each depth
is divided into six equal parts. (See Sec. 69.123, figure 7.)
(ii) The interval between the points of division of a depth and one-
third intervals are carried to the nearest hundredth of a foot.
(i) Breadths of transverse sections. (1) Transverse section breadths
are measured horizontally at each point of division of each depth and
also at the upper and lower points of each depth. Breadths are measured
to the inboard face of the ordinary frames or to the line of the
ordinary frames. Breadths are measured parallel to each other and at
right angle to the vessel's centerline. (See Sec. 69.123, figure 7.)
(2) Upper breadths are not reduced by measuring to deck-beam
brackets. In cases of camber when an upper breadth passes through the
deck (see Sec. 69.123, figure 7), the breadth is measured to the line
of the side frames at the under side of the deck projected vertically up
to the height of the upper breadth.
(3) Bottom breadths are measured only as far as the flat of the
floor extends. (See Sec. 69.123, figures 7 and 10.) When bottom frames
rise immediately from the flat keel, bottom breadths are equal to the
breadth of the flat keel. Where there is no double bottom and where
there is dead rise of the bottom out to the sides of the vessel, bottom
breadths are equal to the part of the bottom plating not affected by
dead rise.
(4) Bottom breadths falling in way of a double bottom, the top of
which rises or falls from certerline to the wings, are measured between
the inboard faces of the frame brackets which connect the double bottom
with the frames. (See Sec. 69.123, figures 8 and 9.)
(j) Measuring spaces having ceiling. The maximum allowance for
terminating measurements on ceiling is three inches on the bottom frames
or tank top and three inches on each side frame. When ceiling is less
than three inches thick, only the actual thickness is allowed. When
ceiling is fitted on a platform directly above the bottom frames, depths
are measured down through the platform to the upper side of the frames
and the allowable ceiling on the platform is then deducted.
(k) Area of transverse sections. (1) A transverse section at an end
of the tonnage length may not yield area, except in vessels (such as
barges) with an upright bow or stern.
(2) The breadths of each transverse section are numbered from above,
the upper being ``1'', the second down being ``2'', and so on to the
lowest.
(3) Multiply the even numbered breadths by four and the odd numbered
breadths by two, except for the first and last breadths, which are
multiplied by one.
(4) Add together the products from paragraph (k)(3) of this section.
(5) Multiply the sum from paragraph (k)(4) of this section by one-
third of the interval between the breadths. The product is the area of
the transverse section.
[[Page 401]]
(l) Tonnage. (1) Number the transverse sections successively ``1'',
``2'', and so forth, beginning at the bow.
(2) Multiply the area of the even numbered sections by four and the
area of the odd numbered sections by two, except the first and last
sections, which are multiplied by one.
(3) Add together the products from paragraph (l)(2) of this section
and multiply the sum by one-third of the interval between the sections.
The product is the volume under-deck.
(4) The volume under-deck is divided by 100 and is, subject to
exemptions, the under-deck tonnage.
(m) Steps in double bottom. (1) The tonnage length of a vessel
having a step exceeding six inches in height in its double bottom is
divided into longitudinal parts at the step. Each part is subdivided as
follows to determine the number of transverse sections:
(i) Parts 20 feet or under in length are divided into two equal
parts.
(ii) Parts over 20 feet and under 40 feet in length are divided into
four equal parts.
(iii) Parts 40 feet or over are divided as provided in paragraph
(g)(1) of this section.
(2) The tonnage of each part is calculated separately. The sum of
the tonnages of the parts is the under-deck tonnage.
(n) Outside shaft tunnel exclusion. Any portion of an outside shaft
tunnel included in tonnage through the process of measurement is
subtracted from the under-deck tonnage.
(o) Open vessels. (1) An open vessel is one of any length without a
deck or with one or more partial decks, the total length of which is
less than one-half the tonnage length.
(2) The line of the tonnage deck for an open vessel is the upper
edge of the upper strake. Depths of transverse sections are taken from
this line.
(3) Any vessel, other than one having a mechanically refrigerated
hold, that is not an open vessel and that has a tonnage length of less
than 50 feet is measured as an open vessel, if the distance between the
line of its tonnage deck and the upper edge of the upper strake is more
than one-sixth of the midship depth. ``Midship depth'' means the depth
measured from the line of the upper edge of the upper strake to the
point in the bottom used for measuring tonnage depths.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989]
Sec. 69.111 Between-deck tonnage.
(a) Defined. ``Between-deck tonnage'' means the tonnage of the space
above the line of the tonnage deck and below the line of the uppermost
complete deck.
(b) Identifying the line of the uppermost complete deck. (1) If the
uppermost complete deck runs in a continuous line from stem to stern,
the line of the uppermost complete deck is the longitudinal line of the
underside of the uppermost complete deck.
(2) If the uppermost complete deck runs at different levels from
stem to stern, the line of the uppermost complete deck is the
longitudinal line of the underside of the lowest portion of that deck
parallel with the upper portions of that deck. Spaces between the line
of the uppermost complete deck and the higher portions of the deck are
included in superstructure tonnage.
(c) Method for calculating tonnage. The tonnage of each level of the
between-deck space is calculated separately, as follows:
(1) The length of each level is measured at the mid-height between
the line of the deck above and the line of the deck below. Measure from
the point forward where the continuation of the line of the inboard face
of the normal side frames intersects the center line of the vessel aft
to the forward face of the normal transom framing.
(2) Divide the length under paragraph (c)(1) of this section into
the same number of equal parts into which the tonnage length is divided
under Sec. 69.109(g)(1).
(3) Measure at mid-height between the faces of the normal side
frames the inside breadth of the space at each end and at each point of
division of the length. Number the breadths successively ``1'', ``2'',
and so forth beginning at the bow.
(4) Multiply the even numbered breadths by four and the odd numbered
breadths by two, except the first and last, which are multiplied by one.
[[Page 402]]
(5) Add together the products under paragraph (c)(4) of this section
and multiply the sum by one-third of the interval between the points at
which the breadths are taken. The product is the square foot area of the
space at mid-height.
(6) Multiply the area of the space at mid-height by the average of
the heights taken each point of division of the space. The product
divided by 100 is the tonnage of that space.
(7) The between-deck tonnage is the sum of the tonnage of each level
within the between-deck space.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997]
Sec. 69.113 Superstructure tonnage.
(a) Defined. ``Superstructure tonnage'' means the tonnage of all
permanent structures, such as forecastle, bridge, poop, deckhouse, and
break, on or above the line of the uppermost complete deck (or line of
shelter deck, if applicable).
(b) Method of calculating tonnage. The tonnage of all structures on
each level on or above the uppermost complete deck (or shelter deck, if
applicable) is calculated separately as follows:
(1) The length of each structure is measured along its centerline at
mid-height between the line of the inboard face of the framing on one
end to the line of the inboard face of the framing on the other end.
(See Sec. 69.123, figure 11.)
(2) Divide the length under paragaph (b)(1) of this section into an
even number of equal parts most nearly equal to those into which the
tonnage length is divided under Sec. 69.109.
(3) Measure at mid-height the inside breadth at each end and at each
point of division of the length. Number the breadths successively ``1'',
``2'', and so forth, beginning at the extreme forward end of the
structure. If an end of the structure is in the form of a continuous arc
or curve, the breadth at that end is one-half the nearest breadth. If an
end is in the form of an arc or curve having a decided flat, the breadth
at the end is two-thirds of the nearest breadth.
(4) Multiply the even numbered breadths by four and the odd numbered
by two, except the first and last breadth, which are multiplied by one.
(5) Add together the products under paragraph (b)(4) of this section
and multiply the sum by one-third of the interval between the points at
which the breadths are taken. The product is the square foot area of the
structure at mid-height.
(6) Multiply this area by the average of the heights taken at each
point of division of the structure between its decks or the line of its
decks. The product divided by 100 is the tonnage of that structure.
(c) A structure having steps in its deck or side must be measured in
parts.
(d) The superstructure tonnage is the sum of tonnages of each level
above the line of the uppermost complete deck (or shelter deck, if
applicable).
(e) When a structure is located over a cut-away portion of the
tonnage deck, the structure's height is measured from the under side of
its overhead deck to the line of the tonnage deck. If the tonnage deck
has no camber, allow for camber in the overhead deck.
(f) For structures of a standard geometric shape, a simple geometric
formula that yields an accurate volume may be used.
Sec. 69.115 Excess hatchway tonnage.
(a) Hatchways that are above the tonnage deck and are either open to
the weather or within open structures are measured to determine excess
hatchway tonnage. Hatchways that are in between-deck spaces, on decks
within closed-in structures, or on open structures are not measured.
(b) The tonnage of a hatchway is its length times breadth times mean
depth divided by 100. Mean depth is measured from the under side of the
hatch cover to the top of the deck beam.
(c) From the sum of the tonnage of the hatchways under this section,
subtract one-half of one percent of the vessel's gross tonnage exclusive
of the hatchway tonnage. The remainder is added as excess hatchway
tonnage in calculating gross tonnage.
[[Page 403]]
Sec. 69.117 Spaces exempt from inclusion in gross tonnage.
(a) Purpose. This section lists spaces which are exempt from
inclusion in gross tonnage.
(b) Spaces on or above the line of the uppermost complete deck. The
following spaces or portions of spaces on or above the line of the
uppermost complete deck are exempt if the spaces or portions are
reasonable in extent and adapted and used exclusively for the purpose
indicated:
(1) Spaces for anchor gear, including capstan, windlass, and chain
locker, are exempt.
(2) Companions and booby-hatches protecting stairways or ladderways
leading to spaces below are exempt, whether or not the spaces below are
exempt.
(3) Galley or other spaces fitted with a range or oven for cooking
food to be consumed on board the vessel are exempt.
(4) Spaces designed to provide light or air to propelling machinery
are exempt, as follows:
(i) When propelling machinery is located entirely on or above the
line of the uppermost complete deck, the entire propelling machinery
space and all fuel bunker spaces that are also located above that line
are exempt as light or air spaces. (See exception in Sec. 69.121(d)(1)
for framed-in spaces.)
(ii) When part of the propelling machinery projects above the line
of the uppermost complete deck into a space used exclusively to provide
light or air to the propelling machinery, the entire space is exempt as
light or air space. When any portion of this space is used for purposes
other than providing light or air, only the portion of the space used
for light or air, the space occupied by the propelling machinery itself,
and a propelling machinery working space allowance under Sec. 69.121
limited to two feet, if available, on each side of the propelling
machinery are exempt.
(iii) Any part of an escape shaft, or a companion sheltering an
escape shaft, above the line of the uppermost complete deck is exempt as
light or air space.
(iv) Space that would otherwise be exempt as a light or air space is
not exempt when propelling machinery is boxed-in and does not extend
above the line of the uppermost complete deck. Any portion of the boxed-
in space above the line of the uppermost complete deck is exempt.
(5) Skylights affording light or air to a space below, other than to
propelling machinery spaces. Space immediately below the line of the
deck on which a skylight is located is exempt only when there is an
opening in the next lower deck directly below the skylight to permit
light or air to an even lower deck.
(6) Machinery spaces, other than for propelling machinery under
Sec. 169.121.
(7) Spaces for steering gear.
(8) Water closet spaces that are fitted with at least a toilet and
are intended for use by more than one person.
(9) The space in a wheelhouse necessary for controlling the vessel.
(c) Passenger spaces. (1) As used in this section, the term
``passenger'' includes officers and enlisted men on military vessels who
are not assigned ship's duties and not entered on the ship's articles.
(2) As used in this section, ``passenger space'' means a space
reserved exclusively for the use of passengers and includes, but is not
limited to, berthing areas, staterooms, bathrooms, toilets, libraries,
writing rooms, lounges, dining rooms, saloons, smoking rooms, and
recreational rooms. The space need not be part of or adjacent to a
berthing area to be considered a passenger space.
(3) A passenger space located on or above the first deck above the
uppermost complete deck is exempt from gross tonnage.
(4) A passenger space located on the uppermost complete deck is
exempt from gross tonnage only when it has no berthing accommodations
and is an open structure under paragraph (d) of this section.
(d) Open structures. (1) Structures that are located on or above the
line of the uppermost complete deck that are under cover (sheltered) but
open to the weather are exempt from gross tonnage.
(2) A structure is considered ``open to the weather'' under
paragraph (d)(1) of
[[Page 404]]
this section when an exterior end bulkhead of the structure is open and,
except as provided in paragraphs (d)(4), (d)(5), and (d)(6) of this
section, is not fitted with any means of closing. To be considered
``open to the weather'', the end bulkhead must not have a coaming height
of more than two feet in way of any required opening and have one of the
following:
(i) Two openings, each at least three feet wide and at least four
feet high in the clear, one on each side of the centerline of the
structure.
(ii) One opening at least four feet wide and at least five feet high
in the clear.
(iii) One opening at least 20 square feet in the clear with a
breadth in excess of four feet and a height of not less than three feet.
(3) A compartment within an open structure is considered open to the
weather only when an interior bulkhead of that compartment has an
opening or openings that meet the requirements for end bulkheads under
paragraphs (d)(2)(i) through (d)(2)(iii) of this section. Other
compartments within the structure are not considered open to the
weather.
(4) An interior or exterior opening that is temporarily closed by
shifting boards dropped into channel sections at the sides of the
opening is considered open to the weather if battening, caulking, or
gaskets of any material are not used.
(5) An interior or exterior opening that is temporarily closed by
cover plates or boards held in place only by hook bolts (see Sec.
69.123, Figure 12) is considered open to the weather--
(i) If hook bolts used to secure cover plates or boards are spaced
at least one foot apart and hook over a stiffener installed around the
perimeter of the opening;
(ii) If the cover plates or boards fit tightly against the bulkhead;
and
(iii) If battening, caulking, or gaskets of any material are not
used.
(6) An interior or exterior opening that is temporarily closed by
cover plates or boards held in place only by bolts and crosspieces is
considered open to the weather--
(i) If the bolts are not installed through the bulkhead;
(ii) If the bolts and crosspieces are not held in place by cleats or
other attachments to or through the bulkhead;
(iii) If the cover plates or boards fit tightly against the
bulkhead; and
(iv) If battening, caulking, or gaskets of any material are not
used.
(7) A structure with its aft end entirely open from the under side
of its overhead stiffeners down to the deck, to the line of the deck, or
to a coaming not exceeding three inches in height and open athwartship
between the inboard faces of the side stiffeners is considered open to
the weather. The opening may be covered by a wire mesh screen or
temporarily closed by canvas secured at the top and lashed or buttoned
in place.
(e) Open space between the shelter deck and the next lower deck. (1)
Space that is between the shelter deck and the next lower deck and that
is under cover (sheltered) but open to the weather is exempt from gross
tonnage when all openings in the uppermost complete deck are provided
with a watertight means of closing.
(2) A space is considered ``open to the weather'' under paragraph
(e)(1) of this section when the shelter deck above the space has a
middle line opening which conforms to the following:
(i) The middle line opening must be at least four feet long in the
clear and at least as wide as the after cargo hatch on the shelter deck,
but not less than one-half the width of the vessel at the midpoint of
the length of the opening. The opening may have rounded corners not
exceeding a nine inch radius. When a greater radius is required by the
Coast Guard or a Coast Guard recognized classification society under
Sec. 42.05-60 of this chapter, notification of that requirement must be
submitted to the Commandant.
(ii) The middle line opening must be located so that the distance
between the aft edge of the middle line opening and the vessel's stern
is not less than one-twentieth of the tonnage length of the vessel and
the distance between the fore edge of the opening and the vessel's stem
is not less than one-fifth of the tonnage length of the vessel.
(iii) The middle line opening must not be within a structure of any
type.
[[Page 405]]
(iv) If the middle line opening is guarded by rails or stanchions,
the rails and stanchions must not be used to secure or assist in
securing a cover over the opening.
(v) The coaming of the middle line opening must not exceed one foot
mean height above the shelter deck. Bolts must not pass through the
stiffeners or flanges on the coaming, nor may there be any other
attachments on the coaming for fastening a cover. Portable wood covers
may be fitted over the middle line opening if held in place only by
lashings fitted to the under side of the covers. Metal covers may be
fitted if held in place only by hook bolts spaced not less than 18
inches apart that pass through the cover and hook over angle stiffeners
or flanges fitted to the outside of the coaming.
(vi) The space below the middle line opening must have a minimum
length of four feet throughout its entire breadth and height and be in
the clear at all times.
(vii) A scupper having a five inch minimum inside diameter and
fitted with a screw down non-return valve geared to and operated from
the shelter deck must be fitted on each side of the upper deck in way of
the middle line opening.
(3) When the shelter deck space forward or aft of the middle line
opening is divided by interior bulkheads, only those compartments with
at least two openings that progress to the middle line opening are
considered ``open to the weather'' under paragraph (e)(1) of this
section. Each required opening must be at least three feet wide and at
least four feet high in the clear, must not have a coaming height of
more than two feet, and must not be fitted (except as provided in
paragraphs (d)(4), (d)(5), and (d)(6) of this section) with any means of
closing. Other compartments within the shelter deck space are not
considered ``open to the weather'' under paragraph (e)(1) of this
section.
(f) Water ballast spaces. A space, regardless of location, adapted
only for water ballast and not available for stores, supplies, fuel, or
cargo (other than water to be used for underwater drilling, mining, and
related purposes, including production), upon request, may be exempt
from gross tonnage if the following are met:
(1) The space must be available at all times only for water ballast
that is piped through a system independent of other systems (except fire
fighting and bilge suction systems). Pumps, pipes, and other equipment
for loading and unloading water ballast must be of a size suitable for
the efficient handling of the water ballast within a reasonable time
frame. All manholes providing access to a water ballast space must be
oval or circular and not greater than 34 inches in diameter. Except for
those on a deck exposed to the weather, the manholes may have a coaming
not exceeding six inches in height. Existing hatches over spaces being
converted to water ballast spaces must have a watertight cover plate
welded to the hatch and a manhole, as described in this paragraph,
fitted in the plating.
(2) The primary purpose of the water ballast must be to afford a
means of maintaining the vessel's stability, immersion, trim, pre-
loading conditions, or seakeeping capabilities.
(3) If the space is in a vessel that is subject to inspection under
46 U.S.C. 3301, the space must be considered when determining the
adequacy of the vessel's stability under 46 CFR chapter I.
(4) If the total of all water ballast spaces to be exempted from
gross tonnage exceeds 30 percent of the vessel's gross tonnage (as
calculated under this subpart without any allowance for water ballast),
a justification of the operating conditions that require the water
ballast must be submitted to the measuring organization for approval.
Although a single condition may justify all water ballast spaces,
several conditions may be necessary in other cases. However, a
particular tank is not justified by a condition if another tank already
justified by another condition could be used as effectively. The
justification must--
(i) Designate the vessel's service;
(ii) Explain for what purpose under paragraph (f)(2) of this section
the water ballast is being used;
(iii) Provide the calculations required in paragraphs (f)(4)(vi)
through (f)(4)(ix) of this section for those uses
[[Page 406]]
on a form similar to Coast Guard Stability Test Form CG-993-9;
(iv) Include the capacity, tank arrangement, and piping plans for
the vessel;
(v) Include a statement certifying that the space will be used
exclusively for water ballast as prescribed by this section;
(vi) If water ballast is used for stability, describe each loading
condition and the resultant metacentric height (GM) and include
calculations;
(vii) If water ballast is used for immersion or trim, describe those
conditions and include loading and trim calculations;
(viii) If water ballast is used for pre-loading, describe how it is
used and include strength and weight calculations; and
(ix) If water ballast is used for seakeeping, describe each loading
condition, GM, period of roll, and, if speed is involved, speed versus
trim and draft and include calculations.
(5) If the water ballast space or its use, purpose, or piping are
changed, the vessel owner or operator must report the change promptly to
a measurement organization listed in Sec. 69.15 for a determination as
to whether a tonnage remeasurement is required.
(g) Methods for measuring exempt spaces. (1) If the exempt space is
located within the superstructure, the exempt space is measured using
the same procedures used to measure superstructure tonnage under Sec.
69.113.
(2) If the exempt space is located between-deck, the space is
measured using the same procedures used for between-deck tonnage under
Sec. 69.111(c), except that the length of the exempt space is divided
into the even number of spaces most equal to the number of spaces into
which the between-deck was divided.
(3) If the exempt space is located under-deck, the space is measured
using the same procedures used for under-deck tonnage under Sec.
69.109, except that the length of the exempt space is divided into the
even number of spaces most equal to the number of spaces into which the
under-deck was divided.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989;
CGD 97-057, 62 FR 51045, Sept. 30, 1997; CGD 95-028, 62 FR 51203, Sept.
30, 1997; USCG-1999-5118, 64 FR 47404, Aug. 31, 1999]
Sec. 69.119 Spaces deducted from gross tonnage.
(a) Purpose. This section lists the requirements for spaces (other
than propelling machinery spaces under Sec. 69.121) which, though
included in calculating gross tonnage (i.e., are not exempt under Sec.
69.117), are deducted from gross tonnage in deriving net tonnage.
(b) General. (1) A deductible space must be used exclusively for,
and be reasonable in size for, its intended purpose.
(2) When a space is larger than necessary for the safe and efficient
operation of deductible equipment, only the space occupied by the
equipment plus a two foot maximum working space on each side of the
equipment, if available, is deductible.
(3) Space specified in this section may be located anywhere within
the vessel, unless otherwise specified.
(c) Anchor gear. A space below the line of the uppermost complete
deck occupied by the anchor gear, capstan, windlass, and chain locker is
deductible. A fore peak used exclusively as chain locker is measured by
the method prescribed under Sec. 69.117(g)(3).
(d) Boatswain's stores. A space containing oils, blocks, hawsers,
rigging, deck gear, or other boatswain's stores for daily use is
deductible. The maximum deduction allowed for vessels less than 100
gross tons is one ton and, for vessels 100 gross tons or over, is one
percent of the gross tonnage, not to exceed 100 tons.
(e) Chart room. A space for keeping charts and nautical instruments
and for plotting the vessel's course is deductible. For a combined
wheelhouse and chart room, that part not exempted as wheelhouse under
Sec. 69.117(b)(9) is deductible. For small vessels in which the only
space for a chart room is in a cabin or saloon, one half the space not
to exceed 1.5 tons is deductible as chart room.
[[Page 407]]
(f) Donkey engine and boiler. Donkey engine and boiler space is
deductible when connected with the main (non-cargo) pumps of the vessel,
except as follows:
(1) If the space is within the engine room or within the casing
above the engine room and if the donkey engine is an auxiliary to the
main propelling machinery, the space is an engine room deduction under
Sec. 69.121(b).
(2) If the space is above the line of the uppermost complete deck
and if the donkey engine is not an auxiliary to the main propelling
machinery, the space is exempt under Sec. 69.117(b).
(g) Spaces for the exclusive use of officers or crew. (1) The
following spaces, regardless of their location (unless otherwise noted),
are deductible if not used by passengers:
(i) Sleeping rooms.
(ii) Bathrooms with a bath tub or shower but without a water closet.
(iii) Water closets below the line of the uppermost complete deck
serving more than one person, with or without a bath tub or shower.
Water closets, regardless of location, that serve only one person or
that are accessible only through a stateroom or bedroom serving one
person are considered as part of the space they serve and are deductible
only if that space is deductible.
(iv) Clothes drying rooms.
(v) Drinking water filtration or distilling plant below the line of
the uppermost complete deck.
(vi) Hospitals.
(vii) Mess rooms.
(viii) Office of the chief engineer.
(ix) Oil skin lockers.
(x) Pantries.
(xi) Recreation rooms.
(xii) Smoking rooms.
(xiii) Galleys below the line of the uppermost complete deck.
(2) Shops for engineers, carpenters, plumbers, or butchers and
offices for clerks, pursers, or postmasters are not deductible, wherever
located.
(h) Master's cabin. The master's sleeping room, dressing room,
bathroom, observation room, reception room, sitting room, water closet,
and office are deductible.
(i) Radio room. Spaces in which radio apparatus is installed and
messages are sent and received and which may provide off-duty operator
accommodations are deductible.
(j) Steering gear. Spaces for steering gear below the line of the
uppermost complete deck are deductible.
(k) Generators. Spaces for generators below the line of the
uppermost complete deck are deductible regardless of what space the
generators serve. These spaces may include other equipment necessary for
the generator's operation.
(l) Pump room. Spaces below the line of the uppermost complete deck
containing pumps that are not capable of handling cargo and that are not
fuel oil transfer pumps considered part of the propelling machinery
under Sec. 69.121(b)(2)(v) are deductible.
(m) Sail stowage. A space for stowing sails on a vessel propelled
only by sails is deductible up to two and one-half percent of the
vessel's gross tonnage.
(n) Waste material space. (1) A tank or collection space, regardless
of location, used for the carriage or collection of sewage, garbage,
galley waste, trash, slop-oil mixture, tank cleaning residue, bilge
residue, or other waste material generated aboard the vessel is
deductible.
(2) Space below the line of the uppermost complete deck used
exclusively to separate, clarify, purify, or otherwise process waste
material generated aboard the vessel is deductible.
(o) Passageways. A passageway or companionway is deductible--
(1) If it serves deductible spaces only; or
(2) If it serves deductible spaces and is also the sole means of
access to one of the following non-deductible spaces:
(i) Lockers of less than two tons each, containing medicine, linen,
mops, or other items for the free use of the crew.
(ii) A ship's office.
(iii) Spare rooms (not exceeding two) used by a pilot, customs
officer, reserve engineer, or employee or agent of the vessel's owner or
operator.
(p) Markings for deductible spaces. (1) Each space deducted under
this section
[[Page 408]]
must be marked with the words ``Certified ------'' (inserting the space
designation, such as ``Seaman'', ``Generator'', Office of Chief
Engineer'', ``Hospital'', or ``Anchor Gear''). If a deductible space
berths more than one crew member, the marking must indicate the number
of crew members berthed, such as ``Certified ------ Seamen'' (inserting
the number of crew).
(2) The abbreviations ``Cert.'' for ``certified'' and ``W.C.'' for
``water closet'' may be used.
(3) The markings must be in Roman letters and Arabic numerals at
least \1/2\ inch in height, must be painted in a light color on a dark
background, must be embossed, center-punched, carved, or permanently cut
in a bulkhead or metal plate, and must be placed in a legible location
over a doorway on the inside of the space. A metal plate, if used, must
be permanently fastened in place by welding, riveting, lock screws, or a
Coast Guard-approved bonding agent.
(q) Method for measuring deductible spaces. (1) A rectangular space
must be measured by taking the product of its length, breadth, and
height.
(2) A space with curved sides on or above the tonnage deck is
measured according to Sec. 69.109.
(3) Space less than 15 feet in length may be measured by any
practical method.
(4) Spaces below the tonnage deck exceeding 15 feet in length and
bounded by a curved surface conforming to the side of the vessel must be
measured by the formula used for measuring the superstructure under
Sec. 69.113.
(5) The height of a space located on a platform in the hull must be
measured from the top of the bottom hull frames, if the platform is used
only to form a flat surface at the bottom of the space, if the platform
is not more than one foot above the top of the bottom frames, and if the
space below the platform is not usable.
(6) The height of a space is measured through any ceiling, paneling,
false overhead, or other covering, to the space's structural boundary,
unless the space enclosed by the covering is available for a non-
deductible use.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989;
CGD 92-058, 57 FR 59938, Dec. 17, 1992]
Sec. 69.121 Engine room deduction.
(a) General. The engine room deduction is either a percentage of the
vessel's total propelling machinery spaces or a percentage of the
vessel's gross tonnage.
(b) Propelling machinery spaces. (1) Propelling machinery spaces are
the spaces occupied by the main propelling machinery and auxiliary
machinery and spaces reasonably necessary for the operation and
maintenance of the machinery. Propelling machinery spaces do not include
spaces for fuel tanks, spaces exempt from gross tonnage under Sec.
69.117, and spaces not used or not available for use in connection with
the propelling machinery.
(2) Propelling machinery spaces are--
(i) Space below the crown. The crown is the top of the main space of
the engine room to which the heights of the main space are taken. The
crown is either the underside of a deck or, if the side bulkheads are
sloping, the uppermost point at which the slope terminates. (See Sec.
69.123, figures 13 and 14.)
(ii) Framed-in space located between the crown and the uppermost
complete deck and used for propelling machinery or for the admission of
light or air to propelling machinery spaces. (See Sec. 69.123, figures
13 and 14.)
(iii) Shaft tunnel space and thrust block recess space.
(iv) Space below the uppermost complete deck used for escape shafts
or trunked ladderways leading from the aft end of the shaft tunnel to
the deck above.
(v) Space containing a fuel oil transfer pump located in a separate
space and not used for bunkering the vessel. When the pump serves both
ballast and fuel oil, only one-half of the pump's space is considered a
propelling machinery space.
(vi) Spaces containing fuel oil settling tanks used solely for the
main boilers. The space must not exceed one percent of the vessel's
gross tonnage.
[[Page 409]]
(vii) Spaces for engineers' stores and workshops located below the
uppermost complete deck and either open to a propelling machinery space
or separated from a propelling machinery space only by a screen
bulkhead. The space must not exceed three-quarters of one percent of the
vessel's gross tonnage.
(viii) Framed-in space located above the line of the uppermost
complete deck and used for propelling machinery or for the admission of
light or air to a propelling machinery space, when requested under
paragraph (d) of this section.
(ix) If the propelling machinery is boxed-in below the tonnage deck,
the boxed-in space plus the spaces outside of the boxing for the shaft,
auxiliary engines, and related propelling machinery. If a portion of the
boxed-in space extends above a platform or partial deck that is below
the uppermost complete deck, that portion is also considered part of the
propelling machinery space.
(c) Methods for measuring propelling machinery spaces. (1) If the
propelling machinery space is bulkheaded off or is not larger than
necessary for the safe operation and maintenance of the propelling
machinery, the entire space, or, if bulkheaded off, the portion
bulkheaded off, is measured for the engine room deduction.
(2) If the propelling machinery space is not bulkheaded off or is
larger than necessary for the safe operation and maintenance of the
propelling machinery, only the space occupied by the propelling
machinery itself plus a working space of two feet, if available, on each
side of the propelling machinery is measured for the engine room
deduction. If the working space overlaps another working space not
related to the propelling machinery, only one-half of the overlapping
working space is included in the propelling machinery space. The height
of the working space is measured as provided in paragraph (c) of this
section.
(3) If the propelling machinery is located in more than one space,
each space must be measured separately.
(4) If the propelling machinery is located in a space with a step in
the bottom or side lines, each stepped portion of the space must be
measured separately.
(5) The length of a space under paragraph (c)(1) of this section is
measured from the bulkhead just forward of the propelling machinery to
the bulkhead just aft of the propelling machinery. The length of a space
under paragraph (c)(2) of this section is measured from the forward edge
of the working space to the aft edge of the working space.
(6) If the boundaries of the propelling machinery space form a
rectangle, the product of the length, breadth, and height, divided by
100, is the tonnage of the space.
(7) If the boundaries of the propelling machinery space are
continuous fair lines, heights are measured at the fore and aft ends and
at the center of the space from the bottom frames, floors, or tank top
of a double bottom up to the line of the crown. A breadth is measured at
half-height of each height. The product of the length, mean breadth, and
mean height, divided by 100, is the tonnage of the space.
(8) If the propelling machinery space is in the aft end of the hull,
extends from side to side of the hull, and has a continuous bottom line,
the length of the space is divided into the even number of equal parts
most nearly equal to the number of parts that the tonnage length under
Sec. 69.109(g) was divided. The tonnage is then calculated by the same
method used for calculating the under-deck tonnage in Sec. 69.109(l).
(9) The tonnage of a framed-in space located between the crown and
the uppermost complete deck and used for propelling machinery or for the
admission of light or air to the propelling machinery space, is the
product of its length, breadth, and height, divided by 100.
(10) The tonnage of a shaft tunnel, or a thrust block recess, having
a flat top is the product of its length, breadth, and height, divided by
100. If the shaft tunnel or thrust block recess top is not flat, the
space above must be calculated by using the appropriate geometrical
formula. If the space aft of the shaft tunnel extends from side to side
of the vessel, the tonnage of the space is found by the formula for
measuring peak tanks in Sec. 69.109(l).
[[Page 410]]
(11) The length and breadth of the space for a shaft tunnel, or a
thrust block recess, when not cased is that which is necessary for
maintenance of the shaft. The height allowed for thrust block recess
space must not exceed seven feet. The mean height allowed for the shaft
tunnel space must not exceed six feet. In a multi-screw vessel where the
shaft tunnel or thrust block recess space is open from side to side,
measure only the space used for purposes of propelling the vessel.
(12) When the propelling machinery is on a bed at the vessel's
bottom, the height of the propelling machinery space is measured from
the top of the bottom frames or floors.
(d) Request to treat certain framed-in engine room spaces as part of
a propelling machinery space. (1) Under Sec. 69.117(b)(4), framed-in
spaces located above the line of the uppermost complete deck and used
for propelling machinery or for admitting light or air to a propelling
machinery space are exempt from inclusion in gross tonnage. However,
upon written request to a measurement organization listed in Sec.
69.15, the vessel owner may elect to have these spaces included in
calculating gross tonnage, then deducted from gross tonnage as
propelling machinery spaces under paragraph (b)(2)(viii) of this
section.
(2) The framed-in space must be safe, seaworthy, and used only for
propelling machinery or for the admission of light or air to the
propelling machinery space. The length of the space must not exceed the
length of the propelling machinery space and the breadth must not exceed
one-half of the extreme inside midship breadth of the vessel. Portions
of the framed-in space that are plated over are not included in the
propelling machinery space.
(3) To exercise the option in paragraph (d)(1) of this section, all
of the framed-in space need not be treated as propelling machinery
space, but only that portion required to entitle the vessel to have 32
percent of its gross tonnage deducted as an engine room deduction under
paragraph (e) of this section.
(e) Calculating the engine room deduction. (1) The engine room
deduction is based on a percentage of the vessel's gross tonnage or a
percentage of the total propelling machinery space.
(2) For vessels propelled in whole or in part by screw--
(i) If the total propelling machinery space is 13 percent or less of
the vessel's gross tonnage, deduct \32/13\ times the total propelling
machinery space;
(ii) If the total propelling machinery space is more than 13 but
less than 20 percent of the vessel's gross tonnage, deduct 32 percent of
the vessel's gross tonnage; or
(iii) If the total propelling machinery space is 20 percent or more
of the vessel's gross tonnage, deduct either 32 percent of the vessel's
gross tonnage or 1.75 times the total propelling machinery space,
whichever the vessel's owner elects.
(3) For vessels propelled in whole or in part by paddle-wheel--
(i) If the total propelling machinery space is 20 percent or less of
the vessel's gross tonnage, deduct \37/20\ times the total propelling
machinery space;
(ii) If the total propelling machinery space is more than 20 but
less than 30 percent of the vessel's gross tonnage, deduct 37 percent of
the vessel's gross tonnage; or
(iii) If the total propelling machinery space is 30 percent or more
of the vessel's gross tonnage, deduct either 37 percent of the vessel's
gross tonnage or 1.5 times the total propelling machinery space,
whichever the vessel's owner elects.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989]
Sec. 69.123 Figures.
[[Page 411]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.042
[[Page 412]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.043
[[Page 413]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.044
[[Page 414]]
Subpart D_Dual Measurement System
Sec. 69.151 Purpose.
This subpart prescribes measurement requirements for the assignment
of either one gross and one net tonnage or two gross and two net
tonnages to vessels under the Dual Measurement System.
Sec. 69.153 Application of other laws.
(a) If a vessel is assigned two gross tonnages under Sec.
69.175(b), the higher gross tonnage is the tonnage used when applying
inspection, manning, and load line laws and regulations to the vessel.
(b) Tonnage marks are not to be construed as additional load line
marks. Whether or not a tonnage mark is submerged under Sec. 69.171 has
no effect on the applicability of load line laws and regulations.
Sec. 69.155 Measurement requirements.
Except as otherwise required by this subpart, the measurement
requirements under the Standard Measurement System in subpart C of this
part apply to the measurement of vessels under the Dual Measurement
System.
Sec. 69.157 Definitions.
Terms used in this subpart that are defined in Sec. 69.103 have the
same meaning as in Sec. 69.103, except the terms listed below. As used
in this subpart,--
Gross tonnage is defined in Sec. 69.161(a).
Line for fresh and tropical waters means the line described in Sec.
69.177(b)(2).
Line of the second deck means the line described in Sec. 69.181.
Line of the uppermost complete deck means a longitudinal line at the
underside of the uppermost complete deck or, if that deck is stepped,
the longitudinal line of the underside of the lowest portion of that
deck parallel with the upper portions of that deck.
Net tonnage is defined in Sec. 69.161(b).
Second deck means the next deck below the uppermost complete deck
that meets the following:
(a) Is continuous athwartships and in a fore-and-aft direction at
least between peak bulkheads, even though the deck may have
interruptions or openings due to propelling machinery spaces, to hatch
and ventilation trunks not extending longitudinally completely between
main transverse bulkheads, to ladder and stairway openings, to chain
lockers, or to cofferdams.
(b) Is fitted as an integral and permanent part of the vessel.
(c) Has proper covers to all main hatchways.
(d) Does not have steps the total of which exceed 48 inches in
height.
Tonnage deck means, for a vessel with only one deck, the uppermost
complete deck and, for a vessel with a second deck, the second deck.
Tonnage mark means the line described in Sec. 69.177(a)(2).
Sec. 69.159 Application for measurement services.
Applications for measurement services under this subpart must
include the application information and plans required for the Standard
Measurement System under Sec. 69.105. The application must indicate
whether a line for fresh and tropical waters is requested under Sec.
69.177(b) and, for vessels with more than one deck, indicate whether one
or two sets of tonnages are desired under Sec. 69.175.
Sec. 69.161 Gross and net tonnages.
(a) Gross tonnage means the tonnage of a vessel, less certain spaces
exempt under Sec. 69.169, and is the sum of the following:
(1) Under-deck tonnage (Sec. 69.163).
(2) Between-deck tonnage (Sec. 69.165)
(3) Superstructure tonnage (Sec. 69.167)
(4) Excess hatchway tonnage (Sec. 69.115)
(5) Tonnage of framed-in propelling machinery spaces included in
calculating gross tonnage (Sec. 69.121(d)(1)).
(b) Net tonnage means gross tonnage less deductions under Sec.
69.119 and Sec. 69.121.
Sec. 69.163 Under-deck tonnage.
The under-deck tonnage provisions in Sec. 69.109 apply; except
that, under the Dual Measurement System, spaces between the line of the
tonnage deck and the tonnage deck itself due to a stepped tonnage deck
are included in under-deck tonnage.
[[Page 415]]
Sec. 69.165 Between-deck tonnage.
The between-deck tonnage provisions in Sec. 69.111 apply, except
that, under the Dual Measurement System, between-deck space extends from
the tonnage deck to the uppermost complete deck, rather than from the
line of the tonnage deck to the line of the uppermost complete deck.
Sec. 69.167 Superstructure tonnage.
The superstructure tonnage provisions in Sec. 69.113 apply; except
that, under the Dual Measurement System, spaces between the line of the
uppermost complete deck and the uppermost complete deck itself due to a
stepped uppermost complete deck are not included in the superstructure
tonnage.
Sec. 69.169 Spaces exempt from inclusion in gross tonnage.
The tonnage of the following spaces is exempt from inclusion in
gross tonnage:
(a) Spaces listed in Sec. 69.117(b) when located within the
superstructure.
(b) Spaces listed in Sec. 69.117(c)(1) through (c)(3) when located
above, but not on, the uppermost complete deck.
(c) Spaces listed in Sec. 69.117(f), regardless of location.
(d) Spaces available for carrying dry cargo and stores when located
on or above the uppermost complete deck.
(e) When a vessel is assigned a tonnage mark and the tonnage mark is
not submerged,--
(1) Spaces listed in Sec. 69.117(b) when located between the
uppermost complete deck and the second deck;
(2) Spaces listed in Sec. 69.117(c)(1) through (c)(3) when located
on the uppermost complete deck; and
(3) Spaces available for carrying dry cargo and stores when located
between the uppermost complete deck and the second deck.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 92-058, 57
FR 59938, Dec. 17, 1992]
Sec. 69.171 When the tonnage mark is considered submerged.
For the purpose of this subpart, a tonnage mark is considered
submerged when--
(a) In salt or brackish water, the upper edge of the tonnage mark is
submerged; and
(b) In fresh or tropical water, the upper edge of the line for fresh
and tropical waters is submerged.
Sec. 69.173 Tonnage assignments for vessels with only one deck.
A vessel without a second deck is assigned only one gross and one
net tonnage. In calculating the gross tonnage, only the exemptions in
Sec. 69.169 (a) through (d) are allowed. Markings under Sec. 69.177
are not permitted on these vessels.
Sec. 69.175 Tonnage assignments for vessels with a second deck.
(a) At the option of the vessel owner, a vessel having a second deck
is assigned either two gross and two net tonnages or one gross and one
net tonnage.
(b) If two gross and two net tonnages are assigned, the higher
tonnages (i.e. those based only on exemptions under Sec. 69.169 (a)
through (d)) are applicable when the upper edge of the tonnage mark is
submerged and the lower tonnages (i.e. those based only on all
exemptions under Sec. 69.169) are applicable when the upper edge of the
tonnage mark is not submerged.
(c) If only the low gross and low net tonnages, as calculated under
paragraph (b) of this section, are assigned, these tonnages are
applicable at all times. On these vessels, the tonnage mark must be
located in accordance with Sec. 69.177(a)(6) at the level of the
uppermost part of the load line grid.
Sec. 69.177 Markings.
(a) Tonnage mark. (1) All vessels with a second deck that are
measured under the Dual Measurement System must have, on each side of
the vessel, a tonnage mark, and an inverted triangle identifying the
tonnage mark, as described and located under this section. (See the
figure in Sec. 69.183(a).) Vessels with only one deck are not assigned
markings under this section.
(2) The tonnage mark is a horizontal line 15 inches long and one
inch wide. The tonnage mark must be designated by a welded bead or other
permanent
[[Page 416]]
mark 15 inches long placed along the top edge of the tonnage mark.
(3) Above the tonnage mark is placed an inverted equilateral
triangle, each side of which is 12 inches long and one inch wide, with
its apex touching the upper edge of the center of the tonnage mark.
(4) If the vessel has a load line mark, the longitudinal location of
the center of the tonnage mark must be between 21 inches and six feet
six inches aft of the vertical centerline of the load line ring. (See
the figures in Sec. 69.183 (b) and (c).) If the vessel does not have a
load line mark, the center of the tonnage mark must be located
amidships.
(5) Except as under paragraph (a)(6) of this section, the upper edge
of the tonnage mark must be located below the line of the second deck at
the distance indicated in Table 69.177(a)(5). (See the figure in Sec.
69.183(b).)
Table 69.177(a)(5)--Minimum Distance in Inches Between the Tonnage Mark and the Line of the Second Deck
----------------------------------------------------------------------------------------------------------------
L divided by D
L (in feet) -----------------------------------------------------------------------
12 13 14 15 16 17 18 19 20
----------------------------------------------------------------------------------------------------------------
220 and under........................... 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
230..................................... 3.2 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
240..................................... 4.7 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
250..................................... 6.3 3.3 2.0 2.0 2.0 2.0 2.0 2.0 2.0
260..................................... 8.0 4.8 2.1 2.0 2.0 2.0 2.0 2.0 2.0
270..................................... 9.9 6.4 3.5 2.0 2.0 2.0 2.0 2.0 2.0
280..................................... 11.8 8.1 4.9 2.1 2.0 2.0 2.0 2.0 2.0
290..................................... 13.9 9.9 6.5 3.5 2.0 2.0 2.0 2.0 2.0
300..................................... 16.0 11.7 8.1 4.9 2.1 2.0 2.0 2.0 2.0
310..................................... 18.3 13.7 9.8 6.4 3.5 2.0 2.0 2.0 2.0
320..................................... 20.7 15.8 11.7 8.1 4.9 2.1 2.0 2.0 2.0
330..................................... 23.2 18.0 13.6 9.8 6.4 3.5 2.0 2.0 2.0
340..................................... 25.9 20.4 15.7 11.6 8.1 4.9 2.1 2.0 2.0
350..................................... 28.7 22.9 17.9 13.6 9.8 6.5 3.6 2.0 2.0
360..................................... 31.7 25.5 20.2 15.7 11.7 8.2 5.0 2.2 2.0
370..................................... 34.7 28.3 22.7 17.9 13.6 9.9 6.6 3.7 2.0
380..................................... 38.0 31.1 25.3 20.2 15.7 11.8 8.3 5.2 2.4
390..................................... 41.3 34.1 27.9 22.6 17.9 13.8 10.1 6.8 3.8
400..................................... 44.8 37.2 30.7 25.0 20.1 15.8 11.9 8.4 5.3
410..................................... 48.2 40.3 33.5 27.7 22.6 18.1 14.0 10.4 7.2
420..................................... 51.5 43.4 36.4 30.4 25.2 20.6 16.4 12.7 9.7
430..................................... 54.8 46.5 39.4 33.3 27.9 23.2 19.0 15.2 11.8
440..................................... 58.4 49.9 42.6 36.4 30.9 26.0 21.7 17.8 14.4
450..................................... 62.1 53.4 46.0 39.6 33.9 29.0 24.6 20.6 17.1
460..................................... 65.9 57.0 49.5 42.9 37.1 32.1 27.6 23.5 19.9
470..................................... 69.8 60.7 53.0 46.3 40.4 35.2 30.6 26.5 22.8
480..................................... 73.7 64.4 56.5 49.7 43.7 38.4 33.7 29.5 25.7
490..................................... 77.5 68.1 60.0 53.0 46.9 41.5 36.7 32.4 28.5
500..................................... 81.2 71.6 63.4 56.2 50.0 44.5 39.6 35.2 31.2
510..................................... 84.9 75.1 66.7 59.4 53.0 47.4 42.4 37.9 33.9
520..................................... 88.4 78.4 69.9 62.4 55.9 50.2 45.1 40.5 36.4
530..................................... 91.8 81.6 72.9 65.3 58.7 52.9 47.7 43.0 38.8
540..................................... 95.2 84.8 75.9 68.1 61.4 55.5 50.2 45.4 41.2
550..................................... 98.4 87.8 78.8 70.9 64.0 58.0 52.6 47.8 43.4
560..................................... 101.6 90.8 81.6 73.6 66.6 60.5 55.0 50.1 45.6
570..................................... 104.8 93.8 84.4 76.3 69.2 62.9 57.3 52.3 47.8
580..................................... 107.9 96.8 87.2 78.9 71.7 65.3 59.6 54.5 49.9
590..................................... 111.0 99.7 90.0 81.5 74.2 67.7 61.9 56.7 52.0
600..................................... 114.0 102.5 92.6 84.0 76.5 69.9 64.0 58.8 54.0
610..................................... 117.0 105.3 95.2 86.5 78.9 72.1 66.2 60.8 56.0
620..................................... 120.0 108.0 97.8 88.9 81.2 74.4 68.3 62.8 58.0
630..................................... 122.9 110.7 100.4 91.3 83.5 76.6 70.4 64.8 59.9
640..................................... 125.7 113.4 102.9 93.7 85.8 78.7 72.4 66.8 61.7
650..................................... 128.6 116.1 105.4 96.1 88.0 80.8 74.4 68.7 63.6
660..................................... 131.4 118.7 107.8 98.3 90.1 82.8 76.3 70.6 65.3
670..................................... 134.2 121.2 110.2 100.6 92.2 84.8 78.3 72.4 67.1
680..................................... 136.9 123.8 112.8 102.9 94.3 86.8 80.2 74.2 68.9
690..................................... 139.6 126.3 115.0 105.1 96.4 88.8 82.1 76.0 70.6
700..................................... 142.3 128.8 117.3 107.3 98.5 90.8 83.9 77.8 72.3
710..................................... 144.9 131.3 119.6 109.4 100.5 92.7 85.7 79.5 73.9
720..................................... 147.5 133.7 121.8 111.5 102.5 94.6 87.5 81.2 75.5
730..................................... 150.1 136.1 124.0 113.6 104.5 96.5 89.3 82.9 77.1
740..................................... 152.7 138.5 126.2 115.7 106.5 98.3 91.5 84.5 78.7
[[Page 417]]
750..................................... 155.3 140.8 128.5 117.8 108.4 100.1 92,8 86.1 80.3
760..................................... 157.8 143.1 130.6 119.7 110.3 101.9 94.4 87.8 81.7
770..................................... 160.2 145.4 132.7 121.7 112.1 103.6 96.0 89.3 83.2
780..................................... 162.6 147.6 134.8 123.7 113.9 105.3 97.6 90.8 84.7
790..................................... 165.1 149.9 136.9 125.6 115.7 107.0 99.2 92.3 86.1
800..................................... 167.5 152.1 138.9 127.4 117.4 108.6 100.8 93.8 87.4
----------------------------------------------------------------------------------------------------------------
L=the length in feet of the line of the second deck at the centerline of the vessel from the inner surface of
the frames at the vessel's stem to the inner surface of the frames at the vessel's stern.
D=The vertical distance in feet from the top of the flat keel of the vessel to the line of the second deck.
EXAMPLE (1) For a vessel in which L=450 feet and L/D=15 feet, read down from the L/D column ``15'' and to the
right on the column ``450'' to where the two columns intersect at 39.6. The tonnage mark must be located 39.6
inches below the line of the second deck.
EXAMPLE (2) If L or L/D is an intermediate number, the distance ``a'' between the tonnage mark and the line of
the second deck must be obtained by linear interpolation. For a vessel in which L=424.80 feet and L/D=15.17:
------------------------------------------------------------------------
Table L/ Actual L/ Table L/
L D=15 D=15.17 D=16
------------------------------------------------------------------------
Table 420.............................. 30.4 ......... 25.2
Actual 424.80.......................... r a s
Table 430.............................. 33.3 ......... 27.9
------------------------------------------------------------------------
Interpolation:
r=30.4+0.48 (33.3-30.4)=31.79
s=25.2+0.48 (27.9-25.2)=26.50
a=r-0.17 (r-s)=31.79-0.17 (31.79-26.50)=30.89 inches
(6) For the following vessels with a load line mark, the upper edge
of the tonnage mark must be located at the level of the uppermost part
of the load line grid:
(i) Vessels assigned only one gross and one net tonnage under Sec.
69.175(c).
(ii) Vessels for which a load line assigning authority certifies
that the vessel's load line mark was located as though the second deck
were the freeboard deck.
(b) Line for fresh and tropical waters. (1) Except as under
paragraph (b)(4) of this section, a horizontal line for fresh and
tropical waters may be assigned at the vessel owner's request.
(2) The line must be nine inches long and one inch wide and located
above and to the left of the tonnage mark at a distance equal to one
forty-eighth of the distance from the top of the flat keel to the
tonnage mark. The tonnage mark and the line for fresh and tropical
waters must be connected by a vertical line one inch wide. (See the
figure in Sec. 69.183(a).)
(3) The line for fresh and tropical waters must be designated by a
welded bead or other permanent mark nine inches long placed along the
upper edge of the line.
(4) For vessels with a load line mark, if the load line assigning
authority certifies that the load line mark was located as though the
second deck were the freeboard deck, a line for fresh and tropical
waters must not be placed on the vessel.
(c) Freeboard deck mark. A vessel assigned two gross and two net
tonnages which has more than one deck and no load line mark assigned
must have a mark on each side of the vessel with the same dimensions and
location as the freeboard deck line mark under Sec. 42.13-20 of this
chapter, except that the mark must be located directly above the tonnage
mark.
(d) The line of the second deck. The line of the second deck must
not be marked on the side of the vessel.
(e) Color of markings. All markings under this section must be
maintained in either a light color on a dark background or a dark color
on a light background.
Sec. 69.179 Certification of markings.
(a) Before a certificate of measurement is issued for a vessel
requiring a tonnage mark, a certification by a measurement organization
under Sec. 69.15 that all markings meet the requirements of this
subpart is required.
(b) The Coast Guard, at any time, may verify markings under this
subpart.
Sec. 69.181 Locating the line of the second deck.
(a) If the second deck is not stepped, the line of the second deck
is the longitudinal line of the underside of the second deck at the side
of the hull.
[[Page 418]]
(b) If the second deck is stepped (as in the examples following this
paragraph), the line of the second deck is a longitudinal line extended
parallel to each portion of the second deck and located at the height of
the underside of the amidships portion of the second deck at the side of
the hull--
(1) Plus, for each stepped portion of the second deck higher than
the second deck at amidships, a distance equal to the length of the
stepped portion divided by the total length of the second deck times the
height that the step is above the height of the amidship portion of the
second deck; and
(2) Minus, for each stepped portion of the second deck lower than
the second deck at amidships, a distance equal to the length of the
stepped portion divided by the total length of the second deck times the
height that the amidship portion of the second deck is above the height
of the step.
[GRAPHIC] [TIFF OMITTED] TC01FE91.045
[[Page 419]]
Sec. 69.183 Figures.
(a) Tonnage mark with an equilateral triangle and a line for fresh
and tropical waters.
[GRAPHIC] [TIFF OMITTED] TC01FE91.046
W=\1/48\ of the distance from the top of the flat keel to the tonnage
mark. (See Sec. 69.177(b)(2).)
(b) Tonnage mark location if the load line mark is not placed as
though the second deck were the freeboard deck.
[GRAPHIC] [TIFF OMITTED] TC01FE91.047
k=a distance between 21 inches and six feet six inches.
a=distance derived from Table 69.177(a)(5).
(c)--Tonnage mark location if the load line mark is placed as though
the second deck were the freeboard deck.
[[Page 420]]
[GRAPHIC] [TIFF OMITTED] TC01FE91.048
k=a distance between 21 inches and six feet six inches.
a=the distance between the line of the second deck and the uppermost
part of the load line grid.
Subpart E_Simplified Measurement System
Sec. 69.201 Purpose.
This subpart prescribes the procedures for measuring a vessel under
the Simplified Measurement System described in 46 U.S.C. chapter 145,
subchapter III.
Sec. 69.203 Definitions.
As used in this subpart and in Coast Guard Form CG-5397 under Sec.
69.205--
Overall breadth means the horizontal distance taken at the widest
part of the hull, excluding rub rails, from the outboard side of the
skin (outside planking or plating) on one side of the hull to the
outboard side of the skin on the other side of the hull.
Overall depth means the vertical distance taken at or near midships
from a line drawn horizontally through the uppermost edges of the skin
(outside planking or plating) at the sides of the hull (excluding the
cap rail, trunks, cabins, and deckhouses) to the outboard face of the
bottom skin of the hull, excluding the keel. For a vessel that is
designed for sailing and has a keel faired to the hull, the keel is
included in ``overall depth'' if the distance to the bottom skin of the
hull cannot be determined reasonably.
Overall length means the horizontal distance between the outboard
side of the foremost part of the stem and the outboard side of the
aftermost part of the stern, excluding rudders, outboard motor brackets,
and other similar fittings and attachments.
Registered breadth means--
(a) For a single-hull vessel, the vessel's overall breadth; and
(b) For a multi-hull vessel, the horizontal distance taken at the
widest part of the complete vessel between the outboard side of the skin
(outside planking or plating) on the outboardmost side of one of the
outboardmost hulls to the outboard side of the skin on the outboardmost
side of the other outboardmost hull, excluding rubrails.
Registered depth means--
(a) For a single-hull vessel, the vessel's overall depth; and
(b) For a multi-hull vessel, the overall depth of the deepest hull.
Registered length means--
(a) For a single-hull vessel, the vessel's overall length; and
[[Page 421]]
(b) For a multi-hull vessel, the horizontal distance between the
outboard side of the foremost part of the stem of the foremost hull and
the outboard side of the aftermost part of the stern of the aftermost
hull, excluding fittings or attachments.
Vessel designed for sailing means a vessel which has the fine lines
of a sailing craft and is capable of being propelled by sail, whether or
not the vessel is equipped with an auxiliary motor, a decorative sail,
or a sail designed only to steady the vessel.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989; 54 FR 40240, Sept. 29, 1989;
USCG-1999-6216, 64 FR 53225, Oct. 1, 1999]
Sec. 69.205 Application for measurement services.
To apply for measurement under the Simplified Measurement System,
the owner of the vessel must complete either an Application for
Simplified Measurement (form CG-5397), or a Builder's Certification and
First Transfer of Title (form CG-1261) which has the information in Part
III ``Dimensions'' completed, and submit it to the National Vessel
Documentation Center.
[CGD 95-014, 60 FR 31606, June 15, 1995]
Sec. 69.207 Measurements.
(a) All lengths and depths must be measured in a vertical plane at
centerline and breadths must be measured in a line at right angles to
that plane. All dimensions must be expressed in feet and inches to the
nearest half inch or in feet and tenths of a foot to the nearest .05 of
a foot.
(b) For a multi-hull vessel, each hull must be measured separately
for overall length, breadth, and depth and the vessel as a whole must be
measured for registered length, breadth, and depth.
(c) The Coast Guard may verify dimensions of vessels measured under
this subpart.
Sec. 69.209 Calculation of tonnages.
(a) Gross tonnage. (1) Except as in paragraphs (a)(2) through (a)(5)
of this section, the gross tonnage of a vessel designed for sailing is
one-half of the product of its overall length, overall breadth, and
overall depth (LBD) divided by one hundred (i.e., 0.50 LBD/100), and the
gross tonnage of a vessel not designed for sailing is 0.67 LBD/100.
(2) The gross tonnage of a vessel with a hull that approximates in
shape a rectangular geometric solid (barge-shape) is 0.84 LBD/100.
(3) The gross tonnage of a multi-hull vessel is the sum of all the
hulls as calculated under this section.
(4) If the volume of the principal deck structure of a vessel is as
large as, or larger than, the volume of the vessel's hull, the volume of
the principal deck structure in tons of 100 cubic feet is added to the
tonnage of the hull to establish the vessel's gross tonnage. The volume
of the principal deck structure of a vessel is determined by the product
of its average dimensions.
(5) If the overall depth of a vessel designed for sailing includes
the keel, only 75 percent of that depth is used for gross tonnage
calculations.
(b) Net tonnage. (1) For a vessel having propelling machinery in its
hull--
(i) The net tonnage is 90 percent of its gross tonnage, if it is a
vessel designed for sailing; or
(ii) The net tonnage is 80 percent of its gross tonnage, if it is
not a vessel designed for sailing.
(2) For a vessel having no propelling machinery in its hull, the net
tonnage is the same as its gross tonnage.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by CGD 97-057, 62
FR 51045, Sept. 30, 1997]
[[Page 423]]
INDEX
SUBCHAPTER G_DOCUMENTATION AND MEASUREMENT OF VESSELS
Editorial Note: This listing is provided for informational purposes
only. It is compiled and kept current by the U.S. Coast Guard,
Department of Homeland Security. This index is updated as of October 1,
2006.
Part, subpart, or section
A
Abstracts of Title, and Certificate of Ownership
Subpart T
Abstract of Title, issuance of
67.301
Acceptable Title Evidence; Waiver
Subpart E
Alteration of Certificate of Documentation
67.311
Appendix A - Oath for Qualification of Corporation as a Citizen of
the United States Under the Act of Sept. 2, 1958 (46 U.S.C. 883-1)
68.01
Appendix A - Oath for Qualification of a Not-For-Profit Oil Spill
Response Cooperative
68.05
Appendix B - Oath for Documentation of Vessels for Use By a Not-
For-Profit Oil Spill Response Cooperative
68.05
Appendix B - Oath of Parent or Subsidiary Corporation Act of Sept.
2, 1958 (46 U.S.C. 883-1)
68.01
Applicability
67.352, 69.3
Application by an 883-1 corporation to document a vessel
68.01-17
Application for Documentation, Exchange or Replacement of
Certificate of Documentation, or Return to Documentation:
Mortgagee Consent; Validation
Subpart K
Application for foreign rebuilding determination
67.177
Application for measurement services
69.17, 69.55, 69.105, 69.159, 69.205
Application for new vessel determination
67.175
Application for Special Qualifications for Vessel Documentation
Subpart J
Application of other laws
69.153
Application procedures; all cases
67.141
Application to document a vessel
68.05-11
Assignment of official number
67.111
Assignments and Designations Required for Vessel Documentation
Subpart H
Association or joint venture
67.37
Authorized measurement organizations
69.15
B
Between-deck tonnage
69.111, 69.165
Build Requirements for Vessel Documentation
Subpart F
C
Calculation of tonnages
69.209
Calculation of volumes
69.65
Cancellation; requirement and procedure
67.173
Captured vessels
67.134
Certification of markings
69.179
Certificate of Ownership, issuance of
67.303
[[Page 424]]
Cessation of qualifications
68.01-9, 68.05-13
Change in:
General partners of partnership....................................67.85
Legal name of owner................................................67.87
Change of net tonnage
69.71
Citizenship requirements for limited coastwise endorsement
68.05-5
Citizenship Requirements for Vessel Documentation
Subpart C
Coastwise or Great Lakes endorsement
67.19
Corporation
67.39
D
Definitions
67.3
Acknowledgment......................................................67.3
Act..............................................................68.01-1
Amidships..........................................................69.53
Between-deck......................................................69.103
Break.............................................................69.103
Camber............................................................69.103
Captured vessel.....................................................67.3
Cargo space........................................................69.53
Ceiling...........................................................69.103
Certification of Documentation.............................67.3, 68.05-3
Citizen or Corporation...........................................68.01-1
Citizen....................................................67.3, 68.05-3
Coaming...........................................................69.103
Coastwise trade.....................................................67.3
Commandant....................................................67.3, 69.9
Convention..........................................................69.9
Convention Measurement System.......................................69.9
Deckhouse.........................................................69.103
Depth of frame....................................................69.103
Documentation Officer...............................................67.3
Documented vessel...................................................67.3
Double bottom.....................................................69.103
Dual Measurement System.............................................69.9
Enclosed space.....................................................69.53
Endorsement.........................................................67.3
Excluded space.....................................................69.53
Exclusive Economic Zone (EEZ)..............................67.3, 68.05-3
Fisheries...........................................................67.3
Floor.............................................................69.103
Forfeited vessel....................................................67.3
Great Lakes.........................................................69.9
Gross tonnage or GT................................................69.53
Gross tonnage.......................................69.103, 69.157, 69.9
Hatch.............................................................69.103
Hull................................................................67.3
Line for fresh and tropical waters................................69.157
Line of the second deck...........................................69.157
Line of the upper deck.............................................69.53
Line of the uppermost complete deck...............................69.157
Line of tonnage deck..............................................69.103
Line of uppermost complete deck...................................69.103
Manufacturer's Certificate of Origin................................67.3
Molded depth.......................................................69.53
Molded draft.......................................................69.53
National Vessel Documentation Center..........................67.3, 69.9
[[Page 425]]
Net tonnage..................................69.9, 69.53, 69.103, 69.157
New vessel..........................................................67.3
Not-for-profit oil spill response cooperative....................68.05-3
Officer in Charge, Marine Inspection (OCMI).........................67.3
Overall breadth...................................................69.203
Overall depth.....................................................69.203
Overall length..............................................69.9, 69.203
Parent corporation...............................................68.01-1
Passenger..........................................................69.53
Person..............................................................67.3
Registered breadth.................................69.53, 69.103, 69.203
Registered depth..................................................69.203
Registered length..................................69.53, 69.103, 69.203
Registered tonnage................................................69.103
Registration........................................................67.3
Second deck.......................................................69.157
Secretary...........................................................67.3
Shelter deck......................................................69.103
Simplified Measurement System.......................................69.9
Standard Measurement System.........................................69.9
State...............................................................67.3
Step..............................................................69.103
Subsidiary corporation...........................................68.01-1
Superstructure..............................................67.3, 69.103
Tonnage deck..............................................69.103, 69.157
Tonnage length....................................................69.103
Tonnage.............................................................69.9
United States.......................................................67.3
Upper deck
69.53
Uppermost complete deck...........................................69.103
Vessel..............................................................67.3
Vessel designed for sailing.......................................69.203
Vessel engaged on a foreign voyage..................................69.9
Vessel of war.......................................................69.9
Weathertight.......................................................69.53
Wrecked vessel......................................................67.3
Delegation of authority to measure vessels
69.27
Deletion: requirement and procedure
67.171
Deposit of Certificate of Documentation
67.165
Determining the measurement system or systems for a particular
vessel
69.11
Convention Measurement System...................................69.11(a)
Standard Measurement System.....................................69.11(b)
Dual Measurement System.........................................69.11(c)
Simplified Measurement System...................................69.11(d)
Deviating from the provisions of a measurement system
69.13
Disputes
67.125
Documentation of Certain Vessels for Oil Spill Cleanup
68.05
Documentation of vessels pursuant to extraordinary legislative
grants section
Part 68
Dual Measurement System
Subpart D
E
Enclosed spaces
69.59
Engine room deduction
69.121
Evidence of build
67.99
Evidence of citizenship
67.43
[[Page 426]]
Excess hatchway tonnage
69.115
Exchange of Certificate of Documentation; vessels at sea
67.149
Excluded spaces
69.61
Extent of title evidence required for:
Captured, forfeited, special legislation, and wrecked Vessels......67.63
Change in ownership of a documented vessel.........................67.59
Initial documentation..............................................67.57
Vessels returning to documentation.................................67.61
F
Fees
Subpart Y, 69.23
Applicability.....................................................67.500
Application for:
Approval of exchange of Certificate of Documentation requiring
mortgagee consent.................................................67.509
Certificate of Compliance........................................67.533
Certificate of Documentation.....................................67.501
Determination of rebuild.........................................67.525
Evidence of deletion from documentation..........................67.513
Exchange or replacement of a Certificate of Documentation........67.503
Filing and recording bills of sale and instruments in the nature
of a bill of sale.................................................67.527
Filing and recording mortgages and related Instruments...........67.529
Filing and recording notices of claim of lien....................67.531
Late renewal.....................................................67.517
New vessel determination.........................................67.521
Replacement of lost or mutilated Certificate of Documentation....67.507
Trade and endorsement(s).........................................67.511
Waivers..........................................................67.519
Wrecked vessel determination.....................................67.523
Copies of instruments and documents...............................67.539
Facsimile handling fee............................................67.540
Fee table.........................................................67.550
Issuance of:
Abstract of Title................................................67.535
Certificate of Ownership.........................................67.537
Figures
69.75, 69.123, 69.183
Filing and Recording of Instruments - Bills of Sale and Related
Instruments
Subpart P
Filing and Recording of Instruments - General Provisions
Subpart O
Filing and Recording of Instruments - Mortgages, Preferred
Mortgages, and Related Instruments
Subpart Q
Filing and Recording of Instruments - Notices of Claim of Lien and
Supplemental Instruments
Subpart R
Filing limitation
67.223
Fishery endorsement
67.21
Citizenship requirement............................................67.35
Conflicts with international agreements...........................67.350
Exemption..........................................................67.11
Less than 100 ft...................................................67.21
Forfeited vessels
67.131
Form of document - all endorsements
67.15
Forms of Documentation; Endorsements; Eligibility of Vessel
Subpart B
G
General
Subpart A
General requirement
67.120
[[Page 427]]
General requirements
67.250, 67.261
General requirements; optional application for filing and
recording
67.231
Governmental entity
67.41
Gross and net tonnage
69.107, 69.161
Gross tonnage
69.57
H
Hailing port designation
67.119
I
Improper markings
67.331
Individual
67.33
Instruments eligible for filing and recording
67.200
Issuance of an International Tonnage Certificate (1969)
69.69
L
Locating the line of the second deck
69.181
M
Managing owner designation; address; requirement to report change
of address
67.113
Marking of cargo spaces
69.67
Marking Requirements for Vessel Documentation
Subpart I
Markings
69.177
Measurement of vessels
Part 69
Measurement requirements
69.155
Measurements
69.207
Methods of establishing title
67.53
Miscellaneous Applications
Subpart M
Mortgages
Preferred restrictions............................................67.233
N
Name and hailing port marking requirements
67.123
Net tonnage
69.63
O
Official number marking requirement
67.121
OMB control numbers assigned under the Paperwork Reduction Act
69.29
Operation under Certificate of Documentation with invalid
Endorsement
67.327
Operation without documentation
67.323
Original owner
67.70
P
Partnership
67.35
Passage of Title:
By court action....................................................67.77
By extra-judicial repossession and sale............................67.83
In conjunction with a corporate merger or similar Transaction......67.81
Pursuant to operation of State law.................................67.91
Without court action following death of owner......................67.79
Penalties
67.142, 69.25
[[Page 428]]
Place of filing and recording
67.213
Privileges conferred:
Documentation of vessel.........................................68.01-11
Operation of vessels............................................68.01-13
Privileges of a limited coastwise endorsement
68.05-9
Purpose
69.1, 69.51, 69.101, 69.151, 69.201
Purpose and scope
68.05-1
Q
Qualification as:
A parent or subsidiary...........................................68.01-7
An 883-1 corporation.............................................68.01-5
R
Recreational endorsement
67.23
Registry endorsement
67.17
Regulations Implementing Provisions for 46 U.S.C. App. 883-1
68.01
Remeasurement and adjustment of tonnage
69.19
Removal of Encumbrances
Subpart S
Renewal of endorsement
67.163
Replacement of Certificate of Documentation; special procedure for
wrongfully withheld document
67.151
Required number of copies
67.209
Requirement for:
Citizen owner......................................................67.30
Citizenship declaration...........................................67.211
Exchange of Certificate of Documentation..........................67.167
Date and acknowledgment...........................................67.207
Maritime Administration approval...................................67.47
Removal from foreign registry......................................67.55
Replacement of Certificate of Documentation.......................67.169
Title evidence.....................................................67.50
Vessel identification.............................................67.205
Requirement for determination
67.95, 67.105
Requirement to:
Have Certificate of Documentation on board........................67.313
Produce Certificate of Documentation..............................67.315
Renew endorsements on the Certificate of Documentation............67.317
Report change in vessel status and surrender Certificate of
Documentation.....................................................67.319
Report change of address of managing owner........................67.321
Requirements
67.220
Requirements for:
Amendments of or supplements to mortgages.........................67.241
Amendments to notice of claim of lien.............................67.259
Assignments of mortgages..........................................67.237
Assumptions of mortgages..........................................67.239
Assignments of notices of claim of lien...........................67.257
Instruments evidencing satisfaction or release....................67.265
Instruments subordinating mortgages...............................67.243
Interlender agreements............................................67.245
Mortgages.........................................................67.235
Notices of claim of lien..........................................67.253
Removal of encumbrances by court order, affidavit, or Declaration
of Forfeiture.....................................................67.263
Requirements for citizenship under 46 U.S.C. App. 883-1
68.01-3
[[Page 429]]
Restrictions
68.01-15
Restriction(s) on:
Exchange; requirement and procedure for mortgagee consent.........67.145
Filing and recording..............................................67.203
Withdrawal of application.........................................67.143
Restrictions on filing and recording
67.255
Restrictions on recording mortgages, preferred mortgages, and
related instruments
67.233
Right of appeal
69.21
S
Simplified Measurement System
Subpart E
Spaces:
Deducted from gross tonnage.......................................69.119
Exempt from inclusion in gross tonnage............................69.117
Spaces exempt from inclusion in gross tonnage
69.169
Special legislation
67.132
Special Provisions
Subpart U
Standard Measurement System
Subpart C
Stock or equity interest requirements
67.31
Submission of applications
67.130
Superstructure tonnage
69.113, 69.167
System of measurement; evidence
67.107
T
Title Requirements for Vessel Documentation
Subpart D
Tonnage and Dimension Requirements for Vessel Documentation
Subpart G
Tonnage assignments for vessels with:
A second deck.....................................................69.175
Only one deck.....................................................69.173
Transfers:
By sale or donation subsequent to documentation....................67.75
Prior to documentation.............................................67.73
Trust
67.36
U
Unauthorized name change
67.329
Under-deck tonnage
69.109, 69.163
United States built
67.97
V
Validity of Certificates of Documentation; Renewal of Endorsement;
Requirement for Exchange, Replacement, Deletion, Cancellation
Subpart L
Variance from the prescribed method of measurement
69.73
Vessel name designation
67.117
Vessels:
Required or eligible to be measured.................................69.5
Transiting the Panama and Suez Canals...............................69.7
Violation of endorsement
67.325
W
Waiver of evidence of build
67.101
Waiver of production of a bill of sale eligible for filing and
recording
67.89
When the tonnage mark is considered submerged
69.171
[[Page 430]]
Wrecked vessels
67.133