Regulations last checked for updates: Feb 10, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
  • §§ 52.250-52.251 - §[Reserved]
  • §§ 52.257-52.262 - §[Reserved]
  • §§ 52.264-52.268 - §[Reserved]
authority: 42 U.S.C. 7401