46 C.F.R. § 13.305 Proof of service for “Tankerman-PIC (Barge)” endorsement.
Title 46 - Shipping
Service must be proved by a letter on company letterhead from the owner or operator of a terminal; the owner or operator of a tank barge; the owner, operator, or master of a tank vessel; or the employer of shore-based tankermen. The letter must contain the information required by §13.127(a), excluding paragraph (a)(3)(vii). [CGD 79–116, 62 FR 25134, May 8, 1997]
Title 46: Shipping
PART 13—CERTIFICATION OF TANKERMEN
Subpart C—Requirements for “Tankerman-PIC (Barge)” Endorsement
§ 13.305 Proof of service for “Tankerman-PIC (Barge)” endorsement.