StacksVerified U.S. regulatory reference

40 CFR §121.16

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Certification or waiver by the Administrator is required where no state, Tribe, or interstate agency has authority to give such a certification.
  2. (b)When acting pursuant to this section, the Administrator shall comply with the requirements of Clean Water Act section 401 and this part.