CFR›Title 23›Chapter I›Part 630›Subpart D ContainsSections 630.401–630.404CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart D—Geodetic Markers Sections 630.401 § 630.401 Purpose. 630.402 § 630.402 Policy. 630.403 § 630.403 Initiation of projects. 630.404 § 630.404 Standards. Source39 FR 26414, July 19, 1974, unless otherwise noted. Previous B Subpart B—Plans, Specifications, and Estimates Next G Subpart G—Advance Construction of Federal-Aid Projects