46 C.F.R. § 153.936 Illness, alcohol, drugs.
Title 46 - Shipping
The master shall ensure that no person participates in cargo related operations who appears to be intoxicated by alcohol or drugs or to be so ill as to be unfit for the particular operation.
Title 46: Shipping
PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS
Subpart C—Operations
General Vessel Safety
§ 153.936 Illness, alcohol, drugs.