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Regulations last checked for updates: Apr 30, 2025
Title 40 - Protection of Environment last revised: Nov 30, 2025
All Titles
Title 40
Chapter I
Part 53
Subpart 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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