In general.
23 C.F.R. § 1340.4
in effectEffective: 2024-07-01This subpart sets forth the minimum design requirements to be incorporated in surveys conducted under this part.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-23.xmlFetched: 7/26/2026
