[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: 30CFR57.5046]



[Page 348]

 

                       TITLE 30--MINERAL RESOURCES

 

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

 

PART 57_SAFETY AND HEALTH STANDARDS_UNDERGROUND METAL AND NONMETAL MINES

--Table of Contents

 

     Subpart D_Air Quality, Radiation, Physical Agents, and Diesel 

                           Particulate Matter

 

Sec.  57.5046  Protection against radon gas.



    Where radon daughter concentrations exceed 10 WL, respirator 

protection against radon gas shall be provided in addition to protection 

against radon daughters. Protection against radon gas shall be provided 

by supplied air devices or by face masks containing absorbent material 

capable of removing both the radon and its daughters.