CFR›Title 33›Chapter II›Part 328 ContainsSections 328.1–328.5CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 328—DEFINITION OF WATERS OF THE UNITED STATES Sections 328.1 § 328.1 Purpose. 328.2 § 328.2 General scope. 328.3 § 328.3 Definitions. 328.4 § 328.4 Limits of jurisdiction. 328.5 § 328.5 Changes in limits of waters of the United States. Authority33 U.S.C. 1251 et seq.Source51 FR 41250, Nov. 13, 1986, unless otherwise noted. Previous 327 Part 327—Public Hearings Next 329 Part 329—Definition of Navigable Waters of the United States