National Emission Standards for Hazardous Air Pollutants; National Emission Standards for Emissions of Radionuclides Other Than Radon From Department of Energy Facilities; National Emission Standards for Radionuclide Emissions from Federal Facilities Other Than Nuclear Regulatory Commission Licensees and Not Covered by Subpart H; Final Amendment

This action amends the National Emission Standards for Hazardous Air Pollutants (NESHAPs), which regulate the air emissions of radionuclides other than radon-222 and radon-220 from facilities owned or operated by the Department of Energy (DOE) (Subpart H) and from Federal Facilities other than Nuclear Regulatory Commission (NRC) licensees and not covered by Subpart H (Subpart I). These regulations require that emissions of radionuclides to the ambient air shall not exceed those amounts that would cause any member of the public to receive in any year an effective dose equivalent of 10 millirem per year (mrem/yr). Also, for non-DOE federal facilities, emissions of iodine shall not exceed those amounts that would cause any member of the public to receive in any year an effective dose equivalent of 3 mrem/yr. Regulated facilities demonstrate compliance with the standard by sampling and monitoring radionuclide emissions from all applicable point sources. Currently, radionuclide emissions from point sources are measured in accordance with the American National Standards Institutes's (ANSI) "Guide to Sampling Airborne Radioactive Materials in Nuclear Facilities," ANSI N13.1-1969. In 1999, the American National Standards Institute substantively revised ANSI N13.1-1969 and renamed it "Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities," ANSI/HPS N13.1-1999. Today's action amends 40 CFR Part 61, subparts H and I to require the use of ANSI/HPS N13.1-1999 for all applicable newly constructed or modified facilities. Today's action also imposes additional inspection requirements on existing facilities subject to subparts H and I of 40 CFR Part 61.