StacksVerified U.S. regulatory reference

40 CFR §191.23

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Determination of compliance with this subpart shall be based upon underground sources of drinking water which have been identified on the date the implementing agency determines compliance with subpart C of this part.
  2. (b)[Reserved]