Regulations last checked for updates: Jun 19, 2026

Title 40 - Protection of Environment last revised: Aug 19, 2026

PLAN FOR THE CONTROL OF DESIGNATED POLLUTANTS FROM EXISTING FACILITIES (SECTION 111(D) PLAN)
FLUORIDE EMISSIONS FROM EXISTING PHOSPHATE FERTILIZER PLANTS
SULFURIC ACID MIST EMISSIONS FROM EXISTING SULFURIC ACID PRODUCTION UNITS
FLUORIDE EMISSIONS FROM PRIMARY ALUMINUM REDUCTION PLANTS
TOTAL REDUCED SULPHUR EMISSIONS FROM EXISTING KRAFT PULP MILLS
LANDFILL GAS EMISSIONS FROM EXISTING MUNICIPAL SOLID WASTE LANDFILLS

EMISSIONS FROM LARGE EXISTING MUNICIPAL WASTE COMBUSTION UNITS
authority: 42 U.S.C. 7401
source: 43 FR 51393, Nov. 3, 1978, unless otherwise noted.