Regulations last checked for updates: Apr 04, 2025

Title 40 - Protection of Environment last revised: Feb 04, 2028
authority: 5 U.S.C. 552; E.O. 13392, 70 FR 75373, 3 CFR, 2005 Comp., p. 216; Pres. Mem., 74 FR 4685, 3 CFR, 2009 Comp., p. 338
source: 75 FR 48590, Aug. 11, 2010, as amended at 90 FR 6832, Jan. 21, 2025, unless otherwise noted.