Portable magazine.

(a)Each portable magazine used for the stowage of Class 1 (explosive) materials on board vessels must meet the following requirements:#

(1)It must be weather-tight, constructed of wood or metal lined with wood at least 2 cm (0.787 inch) thick, and with a capacity of no more than 3.1 cubic m (110 cubic feet).#

(2)All inner surfaces must be smooth and free of any protruding nails, screws or other projections.#

(3)If constructed of wood, a portable magazine must be framed of nominal 5 cm × 10 cm (2 × 4 inch) lumber, and sheathed with nominal 20 mm (0.787 inch) thick boards or plywood.#

(4)When constructed of metal, the metal must be not less than 3.2 mm (0.126 inch) thick.#

(5)Runners, bearers, or skids must be provided to elevate the magazine at least 10 cm (3.9 inches) from the deck. Padeyes, ring bolts, or other suitable means must be provided for securing.#

(6)If the portable magazine has a door or hinged cover, the door or cover must have a strong hasp and padlock or equally effective means of securing.#

(7)The portable magazine must be marked on its top and four sides, in letters at least 8 cm (3 inches) high, as follows:#

EXPLOSIVES—HANDLE CAREFULLY—KEEP LIGHTS AND FIRE AWAY.#

(b)A portable magazine which meets the requirements for a type 2 or type 3 magazine under 27 CFR part 555 subpart K may be used for the stowage of Class 1 (explosive) materials on board vessels.#

(c)A portable magazine with a capacity exceeding 3.1 m 3 (110 cubic feet) may be used for the stowage of Class 1 (explosive) materials under such construction, handling, and stowage requirements as the COTP approves.#