46 CFR § 136.215 - Period of validity.

---
identifier: "/us/cfr/t46/s136.215"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 136.215 - Period of validity."
title_number: 46
title_name: "Shipping"
section_number: "136.215"
section_name: "Period of validity."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "M"
subchapter_name: "TOWING VESSELS"
part_number: "136"
part_name: "CERTIFICATION"
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. 3103, 3301, 3306, 3308, 3316, 8104, 8904; 33 CFR 1.05; DHS Delegation 0170.1."
regulatory_source: "81 FR 40101, June 20, 2016, unless otherwise noted."
cfr_part: "136"
---


# 136.215 Period of validity.

(a) A COI for a towing vessel is valid for 5 years from the date of issue.

(b) For a towing vessel utilizing the TSMS option, the COI is invalid upon the expiration or revocation of the owner or managing operator TSMS certificate or the ISM Code Certificate.

(c) A COI may be suspended and withdrawn or revoked by the cognizant Officer in Charge, Marine Inspection at any time for noncompliance with the requirements of this subchapter.