[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR52.01-140]

[Page 133]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 52_POWER BOILERS--Table of Contents
 
                   Subpart 52.01_General Requirements
 
Sec. 52.01-140  Certification by stamping (modifies PG-104 through PG-113).

    (a) All boilers built in accordance with this part must be stamped 
with the appropriate ASME Code symbol as required by PG-104 through PG-
113 of the ASME Code.
    (b)(1) Upon satisfactory completion of the tests and Coast Guard 
inspections, boilers must be stamped with the following:
    (i) Manufacturer's name and serial number;
    (ii) ASME Code Symbol;
    (iii) Coast Guard symbol, which is affixed only by marine inspector 
(see Sec. 50.10-15 of this subchapter);
    (iv) Maximum allowable working pressure ------ at ------ [deg]C 
([deg]F): and
    (v) Boiler rated steaming capacity in kilograms (pounds) per hour 
(rated joules (B.T.U.) per hour output for high temperature water 
boilers).
    (2) The information required in paragraph (b)(1) of this section 
must be located on:
    (i) The front head or shell near the normal waterline and within 610 
mm (24 inches) of the front of firetube boilers; and
    (ii) The drum head of water tube boilers.
    (3) Those heating boilers which are built to section I of the ASME 
Code, as permitted by Sec. 53.01-10(e) of this subchapter, do not 
require Coast Guard stamping and must receive full ASME stamping 
including the appropriate code symbol.
    (c) The data shall be legibly stamped and shall not be obliterated 
during the life of the boiler. In the event that the portion of the 
boiler upon which the data is stamped is to be insulated or otherwise 
covered, a metal nameplate as described in PG-106.6 of the ASME Code 
shall be furnished and mounted. The nameplate is to be maintained in a 
legible condition so that the data may be easily read.
    (d) Safety valves shall be stamped as indicated in PG-110 of the 
ASME Code.

[CGD 81-79, 50 FR 9433, Mar. 8, 1985]