From the Document: "The U.S. Army Corps of Engineers (USACE) undertakes water resource development projects pursuant to authorizing statutes and the receipt of appropriations. The standard process for a USACE project requires two separate congressional authorizations--one for studying feasibility and a subsequent one for construction--as well as appropriations for both (see CRS [Congressional Research Services] Report R45185, 'Army Corps of Engineers: Water Resource Authorization and Project Delivery Processes'). Additionally, Congress has granted USACE programmatic authorities to undertake cost-shared projects of limited scope and cost without requiring project-specific congressional authorization. These programmatic USACE authorities are referred to as Continuing Authorities Programs (CAPs). Congress has consistently funded USACE CAPs above the President's request since FY2013."
CRS In Focus, IF11106
Congressional Research Service: https://crsreports.congress.gov/