Your U.S. tankship is designed to carry anhydrous ammonia in bulk. The keel was laid in 1980. Which statement concerning the carriage of this cargo is TRUE?

A
A flammable gas detection system must be installed in each cargo pump room.
B
Tanks may not be located "on deck".
C
Carriage of this cargo is authorized by issuance of an IMO Certificate.
D
Aluminum and copper alloys are prohibited from being in valve parts in contact with the cargo.
E