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Regulations last checked for updates: May 23, 2025

Title 40 - Protection of Environment last revised: Apr 23, 2028
All TitlesTitle 40Chapter IPart 53Subpart A - Subpart A—General Provisions
  • § 53.1 - Definitions.
  • § 53.2 - General requirements for a reference method determination.
  • § 53.3 - General requirements for an equivalent method determination.
  • § 53.4 - Applications for reference or equivalent method determinations.
  • § 53.5 - Processing of applications.
  • § 53.6 - Right to witness conduct of tests.
  • § 53.7 - Testing of methods at the initiative of the Administrator.
  • § 53.8 - Designation of reference and equivalent methods.
  • § 53.9 - Conditions of designation.
  • § 53.10 - Appeal from rejection of application.
  • § 53.11 - Cancellation of reference or equivalent method designation.
  • § 53.12 - Request for hearing on cancellation.
  • § 53.13 - Hearings.
  • § 53.14 - Modification of a reference or equivalent method.
  • § 53.15 - Trade secrets and confidential or privileged information.
  • § 53.16 - Supersession of reference methods.
  • Appendix - Table A-1 to Subpart A of Part 53—Summary of Applicable Requirements for Reference and Equivalent Methods for Air Monitoring of Criteria Pollutants
  • Appendix Appendix A - Appendix A to Subpart A of Part 53—References
authority: Sec. 301(a) of the Clean Air Act (42 U.S.C. sec. 1857g(a)), as amended by sec. 15(c)(2) of Pub. L. 91-604, 84 Stat. 1713, unless otherwise noted
source: 40 FR 7049, Feb. 18, 1975, unless otherwise noted.
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