1625-0052 Stat/Auth

Coast Guard, DHS

§ 38.25–1

barges will be considered by the Commandant upon presentation of plans.
§ 38.20–10

Ventilation—T/ALL.

(a) A power ventilation system shall
be provided for compartments containing pumps, compressors, pipes, control spaces, etc. connected with the
cargo handling facilities. These compartments shall be ventilated in such a
way as to remove vapors from points
near the floor level or bilges, or other
areas where vapor concentrations may
be expected. The compartments shall
be equipped with power ventilation of
the exhaust type having capacity sufficient to effect a complete change of air
in not more than 3 minutes equal to
the volume of the compartment and associated trunks.
(b) The power ventilation units shall
not produce a source of vapor ignition
in either the compartment or the ventilation system associated with the
compartment. Inlets to exhaust ducts
shall be provided and located at points
where concentrations of vapors may be
expected. Ventilation from the weather
deck shall be provided. Ventilation
outlets shall terminate away from any
openings to the interior part of the vessel a lateral distance at least equal to
that specified in § 38.20–1(a). These outlets shall be so located as to minimize
the possibility of recirculating contaminated air through the compartment.
(c) Means shall be provided for purging the following spaces of cargo vapors:
(1) The space surrounding nonpressure vessel type tanks, i.e., within the
secondary barrier.
(2) The space surrounding pressurevessel type tanks whose piping connections are below the weather deck in accordance with § 38.10–1(h).
(3) The space surrounding tanks
whose manhole openings are below the
weather deck in accordance with
§ 38.05–10(f).
(d) Power ventilation shall be provided for each auxiliary machinery or
working space located on and accessible from the cargo handling deck.
Such ventilation systems shall be designed to preclude the entry of cargo

vapors into the space via the open access or the ventilation system itself.
[CGFR 66–33, 31 FR 15269, Dec. 6, 1966, as
amended by CGFR 68–65, 33 FR 19985, Dec. 28,
1968]

Subpart 38.25—Periodic Tests and
Inspections
§ 38.25–1 Tests and inspections—TB/
ALL.
(a) Each tank shall be subjected to
the tests and inspections described in
this section in the presence of a marine
inspector, except as otherwise provided
in this part.
(1) An internal inspection of the tank
is conducted within—
(i) Ten years after the last internal
inspection if the tank is a pressure vessel type cargo tank on an unmanned
barge carrying cargo at temperatures
of ¥67 °F (¥55 °C) or warmer; or
(ii) Eight years after the last internal
inspection if the tank is of a type other
than that described in paragraph
(a)(1)(i) of this section.
(2) An external examination of
unlagged tanks and the visible parts of
lagged tanks shall be made at each inspection for certification and at such
other times as considered necessary.
(3) The owner shall ensure that the
amount of insulation deemed necessary
by the marine inspector is removed
from insulated tanks during each internal inspection to allow spot external
examination of the tanks and insulation, or the thickness of the tanks may
be gauged by a nondestructive means
accepted by the marine inspector without the removal of insulation.
(4) If required by the Officer in
Charge, Marine Inspection, the owner
shall conduct nondestructive testing of
each tank in accordance with § 38.25–3.
(5) If the tank is a pressure vessel
type cargo tank with an internal inspection interval of 10 years, is 30 years
old or older, determined from the date
it was built, the owner shall conduct
nondestructive testing of that tank, in
accordance with § 38.25–3, during each
internal inspection.
(b) If the marine inspector considers
a hydrostatic test necessary to determine the condition of the tank, the
owner shall perform the test at a pressure of 11⁄2 times the tanks’s—

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§ 38.25–3

46 CFR Ch. I (10–1–11 Edition)

(1) Maximum allowable pressure, as
determined by the safety relief valve
setting; or
(2) Design pressure, when cargo tanks
operate at maximum allowable pressures reduced below the design pressure
in order to satisfy special mechanical
stress relief requirements.
NOTE: See the ASME Code, Section VIII,
Appendix 3 for information on design pressure.

(c) For pressure vessels designed and/
or supported such that they cannot
safely be filled with water, the Commandant will consider a pneumatic
test in lieu of the hydrostatic test. A
leak test shall be performed in conjunction with the pneumatic test.
Pneumatic testing shall be in accordance with subchapter F (Marine Engineering) of this chapter.
(d) Nonpressure vessel type tanks
shall be tested to a pressure equal to
the pressure on the bottom of the tank
under the design conditions listed in
§ 38.05–4(e).
(e) In the application of the requirements for testing of the cargo tanks,
the test shall in no case be less severe
than the worst anticipated service condition of the cargo loading.
(f) In the design and testing of the
independent cargo tanks, consideration
shall be given to the possibility of the
independent tanks being subjected to
external loads.
[CGFR 66–33, 31 FR 15269, Dec. 6, 1966, as
amended by CGD 85–061, 54 FR 50962, Dec. 11,
1989]

§ 38.25–3 Nondestructive
ALL.

testing—TB/

(a) Before nondestructive testing
may be conducted to meet § 38.25–1
(a)(4) and (a)(5), the owner shall submit
a proposal to the Officer in Charge, Marine Inspection for acceptance that includes—
(1) The test methods and procedures
to be used, all of which must meet section V of the ASME Boiler and Pressure Vessel Code (1986);
(2) Each location on the tank to be
tested; and
(3) The test method and procedure to
be conducted at each location on the
tank.

(b) If the Officer in Charge, Marine
Inspection rejects the proposal, the Officer in Charge, Marine Inspection informs the owner of the reasons why the
proposal is rejected.
(c) If the Officer in Charge, Marine
Inspection accepts the proposal, then
the owner shall ensure that—
(1) The proposal is followed; and
(2) Nondestructive testing is performed by personnel meeting ASNT
‘‘Recommended Practice No. SNT-TC1A (1988), Personnel Qualification and
Certification in Nondestructive Testing.’’
(d) Within 30 days after completing
the nondestructive test, the owner
shall submit a written report of the results to the Officer in Charge, Marine
Inspection.
[CGD 85–061, 54 FR 50963, Dec. 11, 1989]

§ 38.25–5 Removal of defective tanks—
TB/ALL.
If a tank fails to pass the tests prescribed in this subpart, it shall be removed from service unless otherwise
authorized by the Commandant.
§ 38.25–10 Safety
relief
valves—TB/
ALL.
(a) The cargo tank safety relief
valves shall be inspected at least once
in every 2 years.
(b) The safety relief valve discs must
be lifted from their seats in the presence of a marine inspector by either
liquid, gas, or vapor pressure at least
once every 5 years to determine the accuracy of adjustment and, if necessary,
must be reset.
[CGFR 66–33, 31 FR 15269, Dec. 6, 1966, as
amended by CGD 95–027, 61 FR 26000, May 23,
1996]

PART 39—VAPOR CONTROL
SYSTEMS
Subpart 39.10—GeneraI
Sec.
39.10–1 Applicability—TB/ALL.
39.10–3 Definitions—TB/ALL.
39.10–5 Incorporation
by
reference—TB/
ALL.
39.10–9 Vessel vapor processing unit—TB/
ALL.
39.10–11 Personnel training—TB/ALL.
39.10–13 Submission of vapor control system
designs—TB/ALL.

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§ 98.25–97

46 CFR Ch. I (10–1–11 Edition)

to determine the accuracy of adjustment and, if necessary, shall be reset.

(1) A marine portable tank (MPT);
(2) An IM 101 or IM 102 portable tank;
and
(3) A portable tank authorized for liquid hazardous materials, other than
liquefied gases, by the Associate Administrator for Hazardous Materials
Safety, Research and Special Programs
Administration (AAHMS), under an exemption issued in accordance with subpart B of 49 CFR part 107.

[CGFR 65–50, 30 FR 17022, Dec. 30, 1965, as
amended by CGFR 67–86, 32 FR 17622, Dec. 9,
1967; CGD 85–061, 54 FR 50965, Dec. 11, 1989;
USCG 1999–4976, 65 FR 6503, Feb. 9, 2000]

§ 98.25–97 Nondestructive testing.
(a) Before nondestructive testing
may be conducted to meet § 98.25–95(a)
(3) and (4), the owner shall submit a
proposal to the Officer in Charge, Marine Inspection for approval that includes—
(1) The test methods and procedures
to be used, all of which must meet section V of the ASME Boiler and Pressure Vessel Code (1986);
(2) Each location on the tank to be
tested; and
(3) The test method and procedure to
be conducted at each location on the
tank.
(b) If the Officer in Charge, Marine
Inspection rejects the proposal, the Officer in Charge, Marine Inspection informs the owner of the reasons why the
proposal is rejected.
(c) If the Officer in Charge, Marine
Inspection accepts the proposal, then
the owner shall ensure that—
(1) The proposal is followed; and
(2) Nondestructive testing is performed by personnel meeting ASNT
‘‘Recommended Practice No. SNT-TC1A (1988), Personnel Qualifications and
Certification in Nondestructive Testing.’’
(d) Within 30 days after completing
the nondestructive test, the owner
shall submit a written report of the results to the Officer in Charge, Marine
Inspection.

[CGD 84–043, 55 FR 37411, Sept. 11, 1990, as
amended by CGD 97–057, 62 FR 51046, Sept. 30,
1997]

§ 98.30–2

[CGD 84–043, 55 FR 37411, Sept. 11, 1990]

§ 98.30–3

Vessels carrying MPTs.

Each MPT on a vessel to which this
part applies must bear, on a metal or
other corrosion-resistant tag—
(a) An inspection date for pressure
relief devices and vacuum relief devices
in accordance with paragraph (b) of
§ 64.79 of this chapter that is not more
than 12 months earlier than the month
in which the vessel is operated;
(b) An inspection date in accordance
with paragraph (b) of § 64.81 of this
chapter that is not more than 30
months earlier than the month during
which the vessel is operated; and
(c) A hydrostatic test date in accordance with paragraph (b) of § 64.83 of this
chapter that is not more than 60
months earlier than the month during
which the vessel is operated.

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

Subpart 98.30—Portable Tanks
SOURCE: CGD 73–172, 39 FR 22954, June 25,
1974, unless otherwise noted.

wreier-aviles on DSK3TPTVN1PROD with CFR

Definitions.

(a) IM 101 portable tank and IM 102
portable tank mean a portable tank constructed in accordance with 49 CFR
178.270 through 178.272 and approved
under 49 CFR 173.32a.
(b) MPT means a marine portable
tank that was inspected and stamped
by the Coast Guard on or before September 30, 1992, and that meets the applicable requirements in this part and
part 64 of this chapter.

§ 98.30–1 Applicability.
(a) This subpart contains regulations
concerning transfer of combustible liquids, certain flammable liquids, and
other hazardous materials to or from
portable tanks on vessels.
(b) This subpart applies to the following portable tanks:

[CGD 84–043, 55 FR 37411, Sept. 11, 1990]

§ 98.30–4 Vessels
carrying
tanks other than MPTs.

(a) Each portable tank, other than an
MPT, on board a vessel to which this
part applies must be one of the following:

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§ 151.04–7

46 CFR Ch. I (10–1–11 Edition)

(i) Ten years after the last internal
inspection on an unmanned barge carrying cargo at temperatures of ¥67 °F
(¥55 °C) or warmer; or
(ii) Eight years after the last internal
inspection if the tank is a pressure
type cargo tank carrying cargo at temperatures colder than ¥67 °F (¥55 °C).
(4) Internal inspection may be required at more frequent intervals as
deemed necessary by the Officer in
Charge, Marine Inspection.
(c) An external examination of
unlagged tanks and the visible parts of
lagged tanks is made at each biennial
inspection. If the vessel has single skin
construction, the underwater portion
of the tank need not be examined unless deemed necessary by the Officer in
Charge, Marine Inspection. If an external examination of the tank is not possible because of insulation, the owner
shall ensure that—
(1) The amount of insulation deemed
necessary by the marine inspector is
removed during each cargo tank internal inspection to allow spot external
examination of the tanks and insulation; or
(2) The thickness of the tanks is
gauged by a nondestructive means accepted by the marine inspector without
the removal of insulation.
(d) If required by the Officer in
Charge, Marine Inspection the owner
shall conduct nondestructive testing of
each tank designated by the Officer in
Charge, Marine Inspection in accordance with § 151.04–7.
(e) If the Officer in Charge, Marine
Inspection considers a hydrostatic test
necessary to determine the condition
of the tanks, the owner shall perform
the test at a pressure of 11⁄2 times the
tank’s—
(1) Maximum allowable pressure, as
determined by the safety relief valve
setting; or
(2) Design pressure, when cargo tanks
operate at maximum allowable pressures reduced below the design pressure
in order to satisfy special mechanical
stress relief requirements.

the time of each vessel’s inspection for
certification.
(g) Excess flow valves shall be inspected at the time of inspection for
certification. The Officer in Charge,
Marine Inspection, shall satisfy himself that the valve is in working condition by visual inspection, and if this is
impossible, by one of the following
means:
(1) Removing the valve and bench
testing ashore; the valve shall close at
or below its rated closing flow.
(2) By any other means acceptable to
the Officer in Charge, Marine Inspection, which will demonstrate that the
valve is operable.
(h) Pressure vaccum relief valves
shall be examined to determine that
the operating mechanism is free and
capable of activation.
(i) Safety relief valves shall be tested
by bench testing or other suitable
means. The valves shall relieve and
reseat within the design tolerances of
the set pressure, or it shall be removed
and reset prior to being returned to
service. This test shall be conducted at
the time of the inspection for certification.
(j) Cargo hose stored on board the
vessel which is used in transferring
cargoes listed in Table 151.05 shall be
inspected every 2 years. This inspection shall consist of a visual examination and a hydrostatic test of 11⁄2 times
the maximum pressure to which the
hose will be subjected in service. The
date of the most recent inspection and
the test pressure shall be stenciled or
otherwise marked on the hose.
(k) Cargo piping shall be inspected
and tested at the same time as the
cargo tanks.
(l) If the tank is a pressure vessel
type cargo tank with an internal inspection interval of 10 years, and is 30
years old or older, determined from the
date it was built, the owner shall conduct nondestructive testing of each
tank in accordance with § 151.04–7, during each internal inspection.
[CFGR 70–10, 35 FR 3714, Feb. 25, 1970, as
amended by CGD 88–100, 54 FR 40029, Sept. 29,
1989; CGD 85–061, 54 FR 50965, Dec. 11, 1989]

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

§ 151.04–7 Nondestructive testing.
(a) Before nondestructive testing
may be conducted to meet § 151.04–5 (d)

(f) Quick closing valves shall be tested by operating the emergency shutoff
system from each operating point at

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Coast Guard, DHS

§ 151.05–1

and (l), the owner shall submit a proposal to the Officer in Charge, Marine
Inspection that includes—
(1) The test methods and procedures
to be used all of which must meet section V of the ASME Boiler and Pressure Vessel Code (1986);
(2) Each location on the tank to be
tested; and
(3) The test method and procedure to
be conducted at each location on the
tank.
(b) If the Officer in Charge, Marine
Inspection rejects the proposal, the Officer in Charge, Marine Inspection informs the owner of the reasons why the
proposal is rejected.
(c) If the Officer in Charge, Marine
Inspection accepts the proposal, then
the owner shall ensure that—
(1) The proposal is followed; and
(2) Nondestructive testing is performed by personnel meeting ASNT
‘‘Recommended Practice No. SNT-TC1A (1988), Personnel Qualification and
Certification in Nondestructive Testing.’’
(d) Within 30 days after completing
the nondestructive test, the owner
shall submit a written report of the results to the Officer in Charge, Marine
Inspection.

top of the tank (i.e., exclusive of static
head).
(2) Atmospheric pressure. Cargo carried
at not more than 10 pounds per square
inch gauge, exclusive of static head.
(c) Cargo identification/temperature.
This column identifies the cargo by the
temperature of the cargo during transit.
(1) Ambient temperature. Cargo which
is carried at naturally occurring temperatures.
(2) Low temperature. Cargo carried
below ambient temperatures when the
product temperature is below 0 °F.
(3) Elevated temperature. Cargo carried
above ambient temperatures.
(d) Hull type. This column refers to
the flotation features of the barge.
Terms used are explained and defined
in Subpart 151.10 of this part.
(e) Cargo segregation/tanks. This column refers to the separation of the
cargo from its surroundings. Terms are
explained in § 151.13–5 and in footnotes
to Table 151.05 of this part.
(f) Tanks/type. This column refers to
the design requirements for cargo
tanks and their placement within the
hull of the vessel. Terms are explained
in § 151.15–1.
(g) Tanks/venting. This column refers
to arrangements for preventing excess
pressure or vacuum within the cargo
tank. Terms used are explained and defined in § 151.15–5.
(h) Tanks/gauging devices. This column refers to arrangements provided
for determining the amount of cargo
present in cargo tanks. Terms used are
explained and defined in § 151.15–10.
(i) Cargo transfer/piping. This column
refers to the classification of piping in
accordance with Subchapter F of this
chapter as discussed in § 151.20–1.
(j) Cargo transfer/control. This column
refers to the valving requirements for
the cargo piping system. These requirements are defined in § 151.20–5.
(k) Environmental control/cargo tanks.
This column refers to control of the
composition of the environment within
cargo tanks. Definitions and detailed
requirements are given in § 151.25–1.
(l) Environmental control/cargo handling space. This column refers to control of the environment in the cargo

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

Subpart 151.05—Summary of Minimum Requirements for Specific Cargoes
§ 151.05–1 Explanation of column headings in Table 151.05.
(a) Cargo identification/name. This column identifies cargoes by name. Words
in italics are not part of the cargo
name but may be used in addition to
the cargo name. When one entry references another entry by use of the
word ‘‘see’’ and both names are in
roman type, either name may be used
as the cargo name (e.g., ‘‘Diethyl either see Ethyl ether’’). However, the
referenced entry is preferred.
(b) Cargo identification/pressure. This
column identifies cargo in terms of
pressure within the tank. Terms used
are:
(1) Pressurized. Cargo carried at a
pressure in excess of 10 pounds per
square inch gauge as measured at the

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