[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR56.4600]

[Page 265-266]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 56--SAFETY AND HEALTH STANDARDS--SURFACE METAL AND NONMETAL MINES--Table of Contents
 
                 Subpart C--Fire Prevention and Control
 
Sec. 56.4600  Extinguishing equipment.

    (a) When welding, cutting, soldering, thawing, or bending--
    (1) With an electric arc or with an open flame where an electrically 
conductive extinguishing agent could create an electrical hazard, a 
multipurpose dry-chemical fire extinguisher or other extinguisher with 
at least a 2-A:10-B:C rating shall be at the worksite.
    (2) With an open flame in an area where no electrical hazard exists, 
a multipurpose dry-chemical fire extinguisher or equivalent fire 
extinguishing equipment for the class of fire hazard present shall be at 
the worksite.
    (b) Use of halogenated fire extinguishing agents to meet the 
requirements of this standard shall be limited to Halon 1211 
(CBrClF2) and Halon 1301 (CBrF3). When these 
agents are used in confined or unventilated areas, precautions based on 
the manufacturer's use instructions shall be taken so that

[[Page 266]]

the gases produced by thermal decompostion of the agents are not 
inhaled.