This legislation, officially known as the "Stop the Delta Tunnel Act," seeks to prevent the Delta Conveyance Project from proceeding by prohibiting the issuance of a critical federal permit. It specifically directs the Secretary of the Army, acting through the Chief of Engineers, to withhold any permit for the project. The bill mandates that no permit may be issued under Section 404 of the Federal Water Pollution Control Act , which governs the discharge of dredged or fill material into navigable waters. This prohibition directly applies to the Delta Conveyance Project, as identified in the Corps of Engineers' December 2022 Draft Environmental Impact Statement. The primary objective of this bill is to effectively halt the project by blocking this essential regulatory approval.