Title 16 › Chapter 12— FEDERAL REGULATION AND DEVELOPMENT OF POWER › Subchapter I— REGULATION OF THE DEVELOPMENT OF WATER POWER AND RESOURCES › § 817
You may not build, run, or keep a dam, water channel, reservoir, power house, or similar works in or across navigable U.S. waters, or on public lands or reservations (including U.S. Territories), or use surplus water or power from a federal dam, unless you have a permit or right-of-way given before June 10, 1920, or a license under this law. If you plan to build on a stream that is not listed as navigable but is under Congress’s commerce power, you must file a notice with the Commission first. The Commission will investigate. If it finds the project would affect interstate or foreign commerce, you cannot build until you get a license. If it does not find that and no public lands are involved, you may build following state law. No one may start a major change to a project that is licensed or exempt under this law unless the change is allowed by the license or exemption and the rules of this subchapter. “Commence” means starting physical on-site work other than surveys or testing.
Full Legal Text
Conservation — Source: USLM XML via OLRC
Legislative History
Reference
Citation
16 U.S.C. § 817
Title 16 — Conservation
Last Updated
Apr 5, 2026
Release point: 119-73not60