Regulations last checked for updates: May 23, 2025

Title 40 - Protection of Environment last revised: Apr 23, 2028
All TitlesTitle 40Chapter IPart 63Subpart I - Subpart I—National Emission Standards for Hazardous Air Pollutants for Certain Processes Subject to the Negotiated Regulation for Equipment Leaks
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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