46 CFR § 13.505 - Proof of service for Tank Vessel-Engineer endorsement.
---
identifier: "/us/cfr/t46/s13.505"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 13.505 - Proof of service for Tank Vessel-Engineer endorsement."
title_number: 46
title_name: "Shipping"
section_number: "13.505"
section_name: "Proof of service for Tank Vessel-Engineer endorsement."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "B"
subchapter_name: "MERCHANT MARINE OFFICERS AND SEAMEN"
part_number: "13"
part_name: "CERTIFICATION OF TANK VESSEL PERSONNEL"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 7317, 8105, 8703, 9102; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 79-116, 60 FR 17142, Apr. 4, 1995, as amended by USCG-2021-0097, 89 FR 93106, Nov. 25, 2024, unless otherwise noted."
cfr_part: "13"
---
# 13.505 Proof of service for Tank Vessel-Engineer endorsement.
(a) Provide evidence in a method prescribed by the Coast Guard of proof of service from the owner, operator, Master, or Chief Engineer of a tankship or self-propelled tank vessel. The evidence must specify—
(1) The classification of cargo (DL, LG, or both) carried while the applicant accumulated the service; and
(2) The number of days of officer, rating, and cadet service in the engine department on tankships or self-propelled tank vessels; or
(b) Service must be proved by certificates of discharge from tankships or self-propelled tank vessels with the appropriate classification of cargo (DL, LG, or both).
[CGD 79-116, 60 FR 17142, Apr. 4, 1995, as amended by CGD 79-116, 62 FR 25135, May 8, 1997; USCG-2006-24371, 74 FR 11260, Mar. 16, 2009; USCG-2021-0834, 89 FR 102337, Dec. 17, 2024]