[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: 30CFR56.5005]

[Page 267]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 56--SAFETY AND HEALTH STANDARDS--SURFACE METAL AND NONMETAL MINES--Table of Contents
 
               Subpart D--Air Quality and Physical Agents
 
Sec. 56.5005  Control of exposure to airborne contaminants.

    Control of employee exposure to harmful airborne contaminants shall 
be, insofar as feasible, by prevention of contamination, removal by 
exhaust ventilation, or by dilution with uncontaminated air. However, 
where accepted, engineering control measures have not been developed or 
when necessary by the nature of work involved (for example, while 
establishing controls or occasional entry into hazardous atmospheres to 
perform maintenance or investigation), employees may work for reasonable 
periods of time in concentrations of airborne contaminants exceeding 
permissible levels if they are protected by appropriate respiratory 
protective equipment. Whenever respiratory protective equipment is used 
a program for selection, maintenance, training, fitting, supervision, 
cleaning, and use shall meet the following miminum requirements:
    (a) Respirators approved by NIOSH under 42 CFR part 84 which are 
applicable and suitable for the purpose intended shall be furnished and 
miners shall use the protective equipment in accordance with training 
and instruction.
    (b) A respirator program consistent with the requirements of ANSI 
Z88.2-1969, published by the American National Standards Institute and 
entitled ``American National Standards Practices for Respiratory 
Protection ANSI Z88.2-1969,'' approved August 11, 1969, which is hereby 
incorporated by reference and made a part hereof. This publication may 
be obtained from the American National Standards Institute, Inc., 1430 
Broadway, New York, New York 10018, or may be examined in any Metal and 
Nonmetal Mine Safety and Health District Office of the Mine Safety and 
Health Administration.
    (c) When respiratory protection is used in atmospheres immediately 
harmful to life, the presence of at least one other person with backup 
equipment and rescue capability shall be required in the event of 
failure of the respiratory equipment.

[50 FR 4054, Jan. 29, 1985, as amended at 60 FR 30400, June 8, 1995; 60 
FR 33723, June 29, 1995; 60 FR 35695, July 11, 1995]