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Regulations last checked for updates: Jul 07, 2025
Title 40 - Protection of Environment last revised: Nov 07, 2025
All Titles
Title 40
Chapter I
Part 51
Subpart L - Subpart L—Legal Authority
§ 51.230 - Requirements for all plans.
§ 51.231 - Identification of legal authority.
§ 51.232 - Assignment of legal authority to local agencies.
authority:
23 U.S.C. 101
;
42 U.S.C. 7401-7671q.
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