CFR›Title 33›Chapter II›Part 321 ContainsSections 321.1–321.3CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 321—PERMITS FOR DAMS AND DIKES IN NAVIGABLE WATERS OF THE UNITED STATES Sections 321.1 § 321.1 General. 321.2 § 321.2 Definitions. 321.3 § 321.3 Special policies and procedures. Authority33 U.S.C. 401.Source51 FR 41227, Nov. 13, 1986, unless otherwise noted. Previous 320 Part 320—General Regulatory Policies Next 322 Part 322—Permits for Structures or Work in or Affecting Navigable Waters of the United States