CFR›Title 43›Subtitle B›Chapter II›Part 9180›Subpart 9180›43 CFR 9180.1 Citation43 CFR 9180.1CorpusDaily eCFRDisplayed edition2026-08-12Last updated2026-08-12 § 9180.1 Interpretation of survey records. Previous 9180.0-3 § 9180.0-3 Authority. Next 9180.1-1 § 9180.1-1 Meridians.