[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: 30CFR75.332]



[Page 487]

 

                       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 D_Ventilation

 

Sec.  75.332  Working sections and working places.



    (a)(1) Each working section and each area where mechanized mining 

equipment is being installed or removed, shall be ventilated by a 

separate split of intake air directed by overcasts, undercasts or other 

permanent ventilation controls.

    (2) When two or more sets of mining equipment are simultaneously 

engaged in cutting, mining, or loading coal or rock from working places 

within the same working section, each set of mining equipment shall be 

on a separate split of intake air.

    (3) For purposes of this section, a set of mining equipment includes 

a single loading machine, a single continuous mining machine, or a 

single longwall or shortwall mining machine.

    (b)(1) Air that has passed through any area that is not examined 

under Sec. Sec.  75.360, 75.361 or 75.364 of this subpart, or through an 

area where second mining has been done shall not be used to ventilate 

any working place. Second mining is intentional retreat mining where 

pillars have been wholly or partially removed, regardless of the amount 

of recovery obtained.

    (2) Air that has passed by any opening of any unsealed area that is 

not examined under Sec. Sec.  75.360, 75.361 or 75.364 of this subpart, 

shall not be used to ventilate any working place.