1. (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. (1) The name or identifying trademark of the manufacturer.
   2. (2) Manufacturer's design or type number.
   3. (3) Size ____ inches. (The pipe size of the valve inlet).
   4. (4) Set pressure ____ p.s.i.
   5. (5) Rated capacity ____ cubic feet per minute of the gas or vapor (at 60 °F. and 14.7 p.s.i.a.).
   6. (6) Coast Guard approval number. The minimum wording for showing approval shall be “USCG 162.018/* *” or “USCG 162.018-* * ”.
2. (b) [Reserved]

* * Number to be assigned by the Commanding Officer, USCG Marine Safety Center.

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