(a) Fired pressure vessels (boilers) shall be equipped with water level
gauges, pressure gauges, automatic pressure-relief valves, blowdown piping,
and other safety devices approved by the American Society of Mechanical
Engineers to protect against hazards from overpressure, flameouts, fuel
interruptions and low water level, all as required by the appropriate
sections, chapters and appendices listed in paragraphs (b) (1) and (2) of this
(b) These gauges, devices and piping shall be designed, installed, operated,
maintained, repaired, altered, inspected, and tested by inspectors holding a
valid National Board Commission and in accordance with the following listed
sections, chapters and appendices:
(1) The ASME Boiler and Pressure Vessel Code, 1977,
published by the American Society of Mechanical Engineers.
SECTION AND TITLE
I Power Boilers
II Material Specifications--Part A--Ferrous
II Material Specifications--Part B--Non-ferrous
II Material Specifications--Part C--Welding Rods, Electrodes, and Filler
IV Heating Boilers
V Nondestructive Examination
VI Recommended Rules for Care and Operation of Heating Boilers
VII Recommended Rules for Care of Power Boilers
(2) The National Board Inspection Code, a Manual for Boiler and Pressure
Vessel Inspectors, 1979, published by the National Board of Boiler and
Pressure Vessel Inspectors.
CHAPTER AND TITLE
I Glossary of Terms
II Inspection of Boilers and Pressure Vessels
III Repairs and Alterations to Boiler and Pressure Vessels by Welding
IV Shop Inspection of Boilers and Pressure Vessels
V Inservice Inspection of Pressure Vessels by Authorized Owner-User
APPENDIX AND TITLE
A Safety and Safety Relief Valves
B Non-ASME Code Boilers and Pressure Vessels
C Storage of Mild Steel Covered Arc Welding Electrodes
D-R National Board "R" (Repair) Symbol Stamp
D-VR National Board "VR" (Repair of Safety and Safety Relief Valve) Symbol
D-VR1 Certificate of Authorization for Repair Symbol Stamp for Safety and
Safety Relief Valves
D-VR2 Outline of Basic Elements of Written Quality Control System for
Repairers of ASME Safety and Safety Relief Valves
D-VR3 Nameplate Stamping for "VR"
E Owner-User Inspection Agencies
F Inspection Forms
(c) Records of inspections and repairs shall be kept in accordance
with the requirements of the ASME Boiler and Pressure Vessel Code and the
National Board Inspection Code. The records shall be made available to the
Secretary or his authorized representative.
For more information: See MSHA'S Program Policy Manual (d) Sections of the ASME Boiler and Pressure Vessel Code, 1977,
listed in paragraph (b)(1) of this section, and chapters and appendices of
the National Board Inspection Code, 1979, listed in paragraph (b)(2) of this
section, are incorporated by reference and made a part of this standard.
These publications may be obtained from the publishers, the American Society
of Mechanical Engineers, 345 East Forty-seventh Street, New York, N.Y.
10017, and the National Board of Boiler and Pressure Vessel Inspectors, 1055
Crupper Avenue, Columbus, Ohio 43229. The publication may be examined at any
Metal and Nonmetal Mine Safety and Health District Office of the Mine Safety
and Health Administration.
Subpart M--Machinery and Equipment
Source: 53 FR 32528, Aug. 25, 1988, unless otherwise noted.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401