Code of Federal Regulations Title 46. Shipping § 46.147.95 Explosives

(1) No person shall bring, have in their possession, or use on board a vessel any small arms ammunition, except by express permission of the master of the vessel.

(2) All small arms ammunition must be stowed and locked in a metal closed cargo transport unit for Class 1 (explosive) materials as defined in 49 CFR 176.2. The key to the cargo transport unit must be kept in the possession of the master or a person designated by the master.

(1) Explosive ships' signals and emergency equipment, including pyrotechnic distress signals and line throwing equipment, must be stowed in watertight containers or wood lined magazine chests.

(2) All pyrotechnic distress signals, rockets, and line throwing guns must be stowed in accordance with the requirements of 49 CFR 176.140 through 176.146.