Commandant
2100 Second Street, S.W.
United States Coast Guard
Washington, DC 20593-0001
(202) 2671430
COMDTINST 16722.4
JUNE 28,1995
COMMANDANT INSTRUCTION 16722.4
Subj: ENFORCEMENT OF THE CHEMICAL TESTING REGULATIONS
1.
PURPOSE. The purpose of this Instruction is to promulgate policy and procedures for
enforcement of the Chemical Testing regulations at Title 46 Code of Federal Regulations Part
16 (46 CFR 16).
2.
ACTION. The Chief of the Headquarters Office of M, District Commanders, and
Commanding Officers of marine safety and marine inspection offices shall insure compliance
with the requirements of this Instruction.
3.
BACKGROUND. In 1988, the Coast Guard, in concert with other U. S. Department of
Transportation (DOT) modal adminis- trations, published regulations in 46 CFR 16 to
prescribe the minimum standards, procedures, and means to be used to test for the use of
dangerous drugs and alcohol in the marine industry. Those regulations prescribe which
commercial vessel crewmembers are required to be chemically tested and under what
circumstances the testing must be done. Simul- taneously, DOT published regulations at 49
CFR 40 that are referenced by 46 CFR 16 and describe in detail how the Coast Guard-required
drug tests are to be conducted. Since their inception, many changes have been made to 46
CFR 16 and 49 CFR 40 as the program matured and the dynamics of drug/alcohol use and
methodology for their testing also changed. In 1995, a Coast Guard drug and alcohol program
inspector (DAPI) billet was established in each District to enforce the regulations. DAPI
billets were established at ports taking into consideration the port's geographic location in the
District and the geographical center of the applicable vessel distribution in the District. The
ports
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