[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: 30CFR75.322]

[Page 473]
 
                       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. 75.322  Harmful quantities of noxious gases.

    Concentrations of noxious or poisonous gases, other than carbon 
dioxide, shall not exceed the threshold limit values (TLV) as specified 
and applied by the American Conference of Governmental Industrial 
Hygienists in ``Threshold Limit Values for Substance in Workroom Air'' 
(1972). Detectors or laboratory analysis of mine air samples shall be 
used to determine the concentrations of harmful, noxious, or poisonous 
gases. This incorporation by reference has been approved by the Director 
of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR 
part 51. Copies are available from the Mine Safety and Health 
Administration, Department of Labor, 1100 Wilson Blvd., Room 2424, 
Arlington, Virginia 22209-3939 and at every Coal Mine Health and Safety 
District and Subdistrict Office. The material is available for 
examination at the Office of the Federal Register, 800 N. Capitol 
Street, NW., 7th Floor, suite 700, Washington, DC.

[61 FR 26442, May 28, 1996, as amended at 67 FR 38386, June 4, 2002]