Lifebuoys

(1) An approved lifebuoy shall be of solid cork or other equivalent material. It shall be capable of floating in fresh water for at least twenty-four hours with 32 lbs. of iron suspended from it. (2) Lifebuoys filled with rushes, cork shavings, granulated cork, or any other loose granulated material, or whose buoyancy depends upon air compartments requiring inflation are prohibited. (3) All lifebuoys shall be fitted with beckets securely seized, and at least one on each side of the ship shall be fitted with a life-line at least fifteen fathoms in length.