[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR77]

[Page 641]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 77_MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK 
AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
                 Subpart F_Electrical Equipment_General
 
Sec.  77.516  Electric wiring and equipment; installation and maintenance.

    In addition to the requirements of Sec. Sec.  77.503 and 77.506, all 
wiring and electrical equipment installed after June 30, 1971, shall 
meet the requirements of the National Electric Code in effect at the 
time of installation.