The main purpose of this legislation is to update and simplify the rules surrounding dredging activities in U.S. waters by repealing certain outdated requirements from the Foreign Dredge Act of 1906. This act aims to modernize the regulatory framework for dredging and the management of dredged materials, which are often critical for maintaining navigable waterways and supporting commerce. Key provisions of the legislation include the complete repeal of a specific section of the U.S. Code that governs dredging operations and the handling of dredged materials.