Regulations last checked for updates: May 03, 2025

Title 40 - Protection of Environment last revised: Nov 03, 2025
§ 191.23 - General provisions.

(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.

(b) [Reserved]

authority: The Atomic Energy Act of 1954, as amended, 42 U.S.C. 2011-2296; Reorganization Plan No. 3 of 1970, 5 U.S.C. app. 1; the Nuclear Waste Policy Act of 1982, as amended, 42 U.S.C. 10101-10270; and the Waste Isolation Pilot Plant Land Withdrawal Act, Pub. L. 102-579, 106 Stat. 4777
source: 50 FR 38084, Sept. 19, 1985, unless otherwise noted.
cite as: 40 CFR 191.23