[Code of Federal Regulations] [Title 40, Volume 8] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR61.256] [Page 171] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS --Table of Contents Subpart W_National Emission Standards for Radon Emissions From Operating Mill Tailings Sec. 61.256 Exemption from the reporting and testing requirements of 40 CFR 61.10. All facilities designated under this subpart are exempt from the reporting requirements of 40 CFR 61.10. Subpart X [Reserved]