- (a) Repairs and replacements in kind must comply with either the regulations in this subchapter or those in effect when the vessel was built.
- (b) Alterations and modifications, such as re-engining, re-powering, upgrading of the main propulsion control system, or replacing extensive amounts of cabling, must comply with the regulations in this subchapter.
- (c) Major conversions, as defined in 46 U.S.C. 2101, such as the addition of a midbody or a change in the service of the vessel, are handled on a case-by-case basis by the Commanding Officer, Marine Safety Center.
[CGD 94-108, 61 FR 28271, June 4, 1996, as amended at 62 FR 23906, May 1, 1997; USCG-2024-1103, 90 FR 52880, Nov. 24, 2025]