Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.104.110 Exemptions

(a) This part does not apply to warships, naval auxiliaries, or other vessels owned or operated by a government and used only on government non-commercial service.

(b) A vessel is not subject to this part while the vessel is laid up, dismantled, or otherwise out of commission.

(c) Vessels with a minimum manning requirement of 20 or fewer TWIC–holding crewmembers are exempt from the requirements in 33 CFR 101.535(a)(1).