[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: 30CFR75.205]



[Page 470]

 

                       TITLE 30--MINERAL RESOURCES

 

  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

 

PART 75_MANDATORY SAFETY STANDARDS_UNDERGROUND COAL MINES--Table of 

Contents

 

                         Subpart C_Roof Support

 

Sec.  75.205  Installation of roof support using mining machines with 

integral roof bolters.



    When roof bolts are installed by a continuous mining machine with 

intregal roof bolting equipment:

    (a) The distance between roof bolts shall not exceed 10 feet 

crosswise.

    (b) Roof bolts to be installed 9 feet or more apart shall be 

installed with a wooden crossbar at least 3 inches thick and 8 inches 

wide, or material which provides equivalent support.

    (c) Roof bolts to be installed more than 8 feet but less than 9 feet 

apart shall be installed with a wooden plank at least 2 inches thick and 

8 inches wide, or material which provides equivalent support.