CFR›Title 18›Chapter III›Part 415 ContainsSubject groups Administration–Types of Projects and JurisdictionCorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 PART 415—BASIN REGULATIONS—FLOOD PLAIN REGULATIONS Subject Groups Administration Administration Sections 415.40–415.43 Enforcement Enforcement Sections 415.50–415.52 Generally Generally Sections 415.1–415.3 Standards Standards Sections 415.30–415.33 Types of Projects and Jurisdiction Types of Projects and Jurisdiction Sections 415.20–415.21 AuthorityPub. L. 87-328 (75 Stat. 688).Source42 FR 13541, Mar. 11, 1977, unless otherwise noted. Previous 410 Part 410—Basin Regulations; Water Code and Administrative Manual—Part III Water Quality Regulations Next 420 Part 420—Basin Regulations—Water Supply Charges