Regulations last checked for updates: Sep 13, 2026

Title 40 - Protection of Environment last revised: Sep 09, 2026

WHAT THIS SUBPART COVERS
EMISSION LIMITS, OPERATING LIMITS, AND WORK PRACTICE STANDARDS
GENERAL COMPLIANCE REQUIREMENTS
TESTING AND INITIAL COMPLIANCE REQUIREMENTS
CONTINUOUS COMPLIANCE REQUIREMENTS
NOTIFICATIONS, REPORTS, AND RECORDS
OTHER REQUIREMENTS AND INFORMATION
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.