Regulations last checked for updates: Nov 21, 2024

Title 40 - Protection of Environment last revised: Nov 19, 2024
authority: 42 U.S.C. 7412(r)(6)(C)(i), 7412(r)(6)(L), 7412(r)(6)(N)
source: 66 FR 1050, Jan. 5, 2001, unless otherwise noted.