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33 U.S.C. 521: Regulations and ordersText contains those laws in effect through Public Law 119-120 (October 7, 2026).
From Title 33-NAVIGATION AND NAVIGABLE WATERSCHAPTER 11-BRIDGES OVER NAVIGABLE WATERS
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§521. Regulations and orders

The Secretary is authorized to prescribe such rules and regulations, and to make and issue such orders, as may be necessary or appropriate for carrying out the provisions of this subchapter.

( June 21, 1940, ch. 409, § 11 , 54 Stat. 501 .)