---
kind: "section"
citation: "46 C.F.R. § 110.01-3"
title: "46"
number: "110.01-3"
heading: "Repairs and alterations."
url: "https://uscodex.org/cfr/46/110.01-3"
---

# §110.01-3. Repairs and alterations.

- (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](/usc/46/2101.md), 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.

## Notes

### Amendments

[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]

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 3306, 3307, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4; § 110.01-2 also issued under 44 U.S.C. 3507. Sections 110.15-1 and 110.25-1 also issued under sec. 617, Pub. L. 111-281, 124 Stat. 2905.

### Source

Source: CGD 74-125A, 47 FR 15232, Apr. 8, 1982, unless otherwise noted.

### Amendments

[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]