---
kind: "section"
citation: "46 C.F.R. § 54.10-3"
title: "46"
number: "54.10-3"
heading: "Marine inspectors and Coast Guard Symbol stamping (replaces UG-90 and UG-91, and modifies UG-92 through UG-103)."
url: "https://uscodex.org/cfr/46/54.10-3"
---

# §54.10-3. Marine inspectors and Coast Guard Symbol stamping (replaces UG-90 and UG-91, and modifies UG-92 through UG-103).

- (a) Only marine inspectors will apply the Coast Guard Symbol. They will not apply any other code symbol to pressure vessels.
- (b) All pressure vessels not exempted under provisions of [§ 54.01-15](/cfr/46/54.01-15.md) must be subject to shop inspection by a marine inspector referring to procedures outlined in UG-92 through UG-103 of Section VIII of the ASME BPVC (incorporated by reference; see [§ 54.01-1](/cfr/46/54.01-1.md)) and §§ [50.30-10](/cfr/46/50.30-10.md), [50.30-15](/cfr/46/50.30-15.md), and [50.30-20](/cfr/46/50.30-20.md) of this subchapter. The marine inspector will then stamp the vessel with the Coast Guard Symbol.
- (c) Pressure vessels exempted under provisions of [§ 54.01-15](/cfr/46/54.01-15.md), except as provided in [paragraph (d)](#d) of this section, are not required to be stamped with the Coast Guard Symbol.
- (d) Pressure vessels described in [§ 54.01-5(c)(3)](/cfr/46/54.01-5.md?p=c-3), except pressure vessels in systems regulated under [subpart 58.60](/cfr/46/subpart58.60.md) of this subchapter, must be visually examined by a marine inspector prior to installation. The marine inspector also reviews the associated plans and manufacturers' data reports. If, upon inspection, the pressure vessel complies with the applicable requirements in [§ 54.01-5](/cfr/46/54.01-5.md), the marine inspector stamps the pressure vessel with the Coast Guard Symbol.

## Notes

### Amendments

[CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by CGD 77-147, 47 FR 21810, May 20, 1982; USCG-2003-16630, 73 FR 65167, Oct. 31, 2008]

### Authority

Authority: 33 U.S.C. 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50104, June 12, 2024, unless otherwise noted.

### Amendments

[CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by CGD 77-147, 47 FR 21810, May 20, 1982; USCG-2003-16630, 73 FR 65167, Oct. 31, 2008]