Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
  • Appendix Appendix B - Appendix B to Part 122 [Reserved]
authority: The Clean Water Act, 33 U.S.C. 1251
source: 48 FR 14153, Apr. 1, 1983, unless otherwise noted.