[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: 30CFR18.14]

[Page 93-94]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 18--ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 18.14  Identification of tested noncertified explosion-proof enclosures.

    An enclosure that meets all applicable requirements of this part, 
but has not been certified by MSHA, shall be identified by a permanent 
marking on it in a conspicuous location. The design of such marking 
shall consist of capital letters USMSHA not less than \1/4\ inch

[[Page 94]]

in height, enclosed in a circle not less than 1 inch in diameter.

[33 FR 4660, Mar. 19, 1968, as amended at 43 FR 12314, Mar. 24, 1978] st