U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 72Subpart A - Subpart A—Acid Rain Program General Provisions
§ 72.1 - Purpose and scope.
§ 72.2 - Definitions.
§ 72.3 - Measurements, abbreviations, and acronyms.
§ 72.4 - Federal authority.
§ 72.5 - State authority.
§ 72.6 - Applicability.
§ 72.7 - New units exemption.
§ 72.8 - Retired units exemption.
§ 72.9 - Standard requirements.
§ 72.10 - Availability of information.
§ 72.11 - Computation of time.
§ 72.12 - Administrative appeals.
§ 72.13 - Incorporation by reference.
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