29 Cfr 1915.172

§ 1915.164
§ 1915.164
ery.

29 CFR Ch. XVII (7–1–04 Edition)
Ship’s

propulsion

accessories, the employer shall ensure
that the following steps are taken:
(1) The devil claws (also known as
chain stoppers) shall be made fast to
the anchor chains.
(2) The riding pawls shall be in the
engaged position.
(3) In the absence of devil claws and
riding pawls, the anchor chains shall be
secured to a suitable fixed structure of
the vessel.

machin-

(a) Before work is performed on the
main engine, reduction gear, or connecting accessories, the employer shall
ensure that the following steps are
taken:
(1) The jacking gear shall be engaged
to prevent the main engine from turning over. A sign shall be posted at the
throttle indicating that the jacking
gear is engaged. This sign shall not be
removed until the jacking gear can be
safely disengaged.
(2) If the jacking gear is steam driven, the stop valves to the jacking gear
shall be secured, locked, and tagged indicating that employees are working
on the main engine.
(3) If the jacking gear is electrically
driven, the circuit controlling the
jacking gear shall be deenergized by
tripping the circuit breaker, opening
the switch or removing the fuse, whichever is appropriate. The breaker,
switch, or fuse location shall be tagged
indicating that employees are working
on the main engine.
(b) Before the jacking engine is operated, the following precautions shall be
taken:
(1) A check shall be made to ensure
that all employees, equipment, and
tools are clear of the engine, reduction
gear, and its connecting accessories.
(2) A check shall be made to ensure
that all employees, equipment and
tools are free of the propeller.
(c) Before work is started on or in the
immediate vicinity of the propeller, a
warning sign calling attention to the
fact that employees are working in
that area shall be hung in a conspicuous location in the engine room.
This sign shall not be removed until it
is determined that the work is completed and all employees are free of the
propeller.
(d) Before the main engine is turned
over (e.g., when warming up before departure or testing after an overhaul) a
check shall be made to ensure that all
employees, equipment, and tools are
free of the propeller.
§ 1915.165

[47 FR 16986, Apr. 20, 1982, as amended at 67
FR 44545, July 3, 2002]

Subpart K—Portable, Unfired Pressure Vessels, Drums and Containers, Other Than Ship’s
Equipment
§ 1915.171 Scope
subpart.

and

application

The standards contained in this subpart shall apply to ship repairing and
shipbuilding and shall not apply to
shipbreaking.
§ 1915.172 Portable air receivers and
other unfired pressure vessels.
(a) Portable, unfired pressure vessels,
built after the effective date of this
regulation, shall be marked and reported indicating that they have been
designed and constructed to meet the
standards of the American Society of
Mechanical Engineers Boiler and Pressure Vessel Code, Section VIII, Rules
for Construction of Unfired Pressure
Vessels, 1963. They shall be subjected
to a hydrostatic pressure test of one
and one-half times the working pressure of the vessels.
(b) Portable, unfired pressure vessels,
not built to the code requirements of
paragraph (a) of this section, and built
prior to the effective date of this regulation, shall be examined quarterly by
a competent person. They shall be subjected yearly to a hydrostatic pressure
test of one and one-half times the
working pressure of the vessels.
(c) The relief valves on the portable,
unfired pressure vessels in paragraphs
(a) and (b) of this section shall be set to
the safe working pressure of the vessels, or set to the lowest safe working
pressure of the systems, whichever is
lower.

Ship’s deck machinery.

(a) Before work is performed on the
anchor windlass or any of its attached

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Occupational Safety and Health Admin., Labor
(d) A certification record of such examinations and tests made in compliance with the requirements of paragraphs (a) and (b) of this section shall
be maintained. The certification record
shall include the date of examinations
and tests, the signature of the person
who performed the examinations or
tests and the serial number, or other
identifier, of the equipment examined
and tested.

Subpart L—Electrical Machinery
§ 1915.181 Electrical circuits and distribution boards.
(a) The provisions of this section
shall apply to ship repairing and shipbuilding and shall not apply to
shipbreaking.
(b) Before an employee is permitted
to work on an electrical circuit, except
when the circuit must remain energized for testing and adjusting, the circuit shall be deenergized and checked
at the point at which the work is to be
done to insure that it is actually deenergized. When testing or adjusting an
energized circuit a rubber mat, duck
board, or other suitable insulation
shall be used underfoot where an insulated deck does not exist.
(c) Deenergizing the circuit shall be
accomplished by opening the circuit
breaker, opening the switch, or removing the fuse, whichever method is appropriate. The circuit breaker, switch,
or fuse location shall be tagged to indicate that an employee is working on
the circuit. Such tags shall not be removed nor the circuit energized until it
is definitely determined that the work
on the circuit has been completed.
(d) When work is performed immediately adjacent to an open-front energized board or in back of an energized
board, the board shall be covered or
some other equally safe means shall be
used to prevent contact with any of the
energized parts.

[47 FR 16986, Apr. 20, 1982, as amended at 51
FR 34562, Sept. 29, 1986; 67 FR 44545, July 3,
2002]

§ 1915.173

§ 1915.1000

Drums and containers.

(a) Shipping drums and containers
shall not be pressurized to remove
their contents.
(b) A temporarily assembled pressurized piping system conveying hazardous liquids or gases shall be provided with a relief valve and by-pass to
prevent rupture of the system and the
escape of such hazardous liquids or
gases.
(c) Pressure vessels, drums and containers containing toxic or flammable
liquids or gases shall not be stored or
used where they are subject to open
flame, hot metal, or other sources of
artificial heat.
(d) Unless pressure vessels, drums
and containers of 30 gallon capacity or
over containing flammable or toxic liquids or gases are placed in an out-ofthe-way area where they will not be
subject to physical injury from an outside source, barriers or guards shall be
erected to protect them from such
physical injury.
(e) Containers of 55 gallons or more
capacity containing flammable or toxic
liquid shall be surrounded by dikes or
pans which enclose a volume equal to
at least 35 percent of the total volume
of the containers.
(f) Fire extinguishers adequate in
number and suitable for the hazard
shall be provided. These extinguishers
shall be located in the immediate area
where pressure vessels, drums and containers containing flammable liquids
or gases are stored or in use. Such extinguishers shall be ready for use at all
times.

[47 FR 16986, Apr. 20, 1982, as amended at 67
FR 44545, July 3, 2002]

Subparts M–Y [Reserved]
Subpart Z—Toxic and Hazardous
Substances
SOURCE: 58 FR 35514, July 1, 1993, unless
otherwise noted.

§ 1915.1000 Air contaminants.
Wherever this section applies, an
employees’s exposure to any substance
listed in Table Z—Shipyards of this
section shall be limited in accordance
with the requirements of the following
paragraphs of this section.
(a)(1) Substances with limits preceded
by ‘‘C’’—Ceiling values. An employee’s

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