[Title 40 CFR 61.23]
[Code of Federal Regulations (annual edition) - July 1, 2002 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 61 - NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS]
[Subpart B - National Emission Standards for Radon Emissions From]
[Sec. 61.23 - Determining compliance.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT82002-07-012002-07-01false61.23Sec. 61.23PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCYAIR PROGRAMS (CONTINUED)NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTSNational Emission Standards for Radon Emissions From
Sec. 61.23  Determining compliance.

    (a) Compliance with the emission standard in this subpart shall be 
determined and the effective dose equivalent calculated by the U.S. 
Environmental Protection Agency (EPA) computer code COMPLY-R. An 
underground uranium mine owner or operator shall calculate the source 
terms to be used for input into COMPLY-R by conducting testing in 
accordance with the procedures described in appendix B, Method 115, or
    (b) Owners or operators may demonstrate compliance with the emission 
standard in this subpart through the use of computer models that are 
equivalent to COMPLY-R provided that the model has received prior 
approval from EPA headquarters. EPA may approve a model in whole or in 
part and may limit its use to specific circumstances.

[54 FR 51694, Dec. 15, 1989, as amended at 65 FR 62151, Oct. 17, 2000]