[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: 30CFR18.30]



[Page 101-102]

 

                       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 B_Construction and Design Requirements

 

Sec.  18.30  Windows and lenses.



    (a) MSHA may waive testing of materials for windows or lenses except 

headlight lenses. When tested, material for windows or lenses shall meet 

the test requirements prescribed in Sec.  18.66 and shall be sealed in 

place or provided with flange joints in accordance with Sec.  18.31.

    (b) Windows or lenses shall be protected from mechanical damage by 

structural design, location, or guarding. Windows or lenses, other than 

headlight lenses, having an exposed area greater than 8 square inches, 

shall



[[Page 102]]



be provided with guarding or equivalent.