Regulations last checked for updates: Apr 18, 2026

Title 40 - Protection of Environment last revised: Aug 18, 2026

APPLICABILITY AND COMPLIANCE DATES
POLLUTION PREVENTION MANAGEMENT PRACTICES FOR NEW AND EXISTING AFFECTED SOURCES
REQUIREMENTS FOR NEW AND EXISTING AFFECTED SOURCES CLASSIFIED AS SMALL FOUNDRIES
REQUIREMENTS FOR NEW AND EXISTING AFFECTED SOURCES CLASSIFIED AS LARGE IRON AND STEEL FOUNDRIES
OTHER REQUIREMENTS AND INFORMATION
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.