[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: 30CFR57.4160]

[Page 323]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 57--SAFETY AND HEALTH STANDARDS--UNDERGROUND METAL AND NONMETAL MINES--Table of Contents
 
                 Subpart C--Fire Prevention and Control
 
Sec. 57.4160  Underground electric substations and liquid storage facilities.

    The requirements of this standard apply to underground areas only.
    (a) Areas within 25 feet of the following shall be free of 
combustible materials:
    (1) Electric substations.
    (2) Unburied, combustible liquid storage tanks.
    (3) Any group of containers used for storage of more than 60 gallons 
of combustible liquids.
    (b) This standard does not apply to installed wiring or timber that 
is coated with at least one inch of shotcrete, one-half inch of gunite, 
or other noncombustible materials with equivalent fire protection 
characteristics.