46 C.F.R. § 13.123 Recency of service or experience for original tankerman endorsement.
Title 46 - Shipping
An applicant for an original tankerman endorsement in subpart B, C, D, or E of this part shall have obtained at least 25% of the qualifying service and, if the endorsement requires transfers, at least two of the qualifying transfers, within five years of the date of application.
Title 46: Shipping
PART 13—CERTIFICATION OF TANKERMEN
Subpart A—General
§ 13.123 Recency of service or experience for original tankerman endorsement.

