---
kind: "section"
citation: "46 C.F.R. § 162.018-6"
title: "46"
number: "162.018-6"
heading: "Marking."
url: "https://uscodex.org/cfr/46/162.018-6"
---

# §162.018-6. Marking.

- (a) Each safety relief valve shall be plainly marked by the manufacturer with the required data in such a way that the marking will not be obliterated in service. The marking may be stamped on the valve or stamped or cast on a plate securely fastened to the valve. The marking shall include the following data:
  - (1) **The name or identifying trademark of the manufacturer.**
  - (2) **Manufacturer's design or type number.**
  - (3) **Size ____ inches.** (The pipe size of the valve inlet).
  - (4) Set pressure ____ p.s.i.
  - (5) **Rated capacity ____ cubic feet per minute of the gas or vapor (at 60 °F.** and 14.7 p.s.i.a.).
  - (6) **Coast Guard approval number.** The minimum wording for showing approval shall be “USCG 162.018/* *” or “USCG 162.018-* * ”.
- (b) [Reserved]

## Notes

### Amendments

[CGFR 68-82, 33 FR 18908, Dec. 18, 1968, as amended by USCG-2001-10224, 66 FR 48620, Sept. 21, 2001]

### Authority

Authority: 33 U.S.C. 1321(j), 1903; 46 U.S.C. 3306, 3703, 4104, 4302; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation 00170.1, Revision No. 01.4.

### Amendments

[CGFR 68-82, 33 FR 18908, Dec. 18, 1968, as amended by USCG-2001-10224, 66 FR 48620, Sept. 21, 2001]