23 CFR §774.1
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The purpose of this part is to implement 23 U.S.C. 138 and 49 U.S.C. 303, which were originally enacted as Section 4(f) of the Department of Transportation Act of 1966 and are still commonly referred to as “Section 4(f).”