Army Corps of Engineers: Continuing Authorities Programs [Updated March 13, 2019] [open pdf - 428KB]
From the Document: "The U.S. Army Corps of Engineers (USACE) undertakes water resources 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 Report R45185, 'Army Corps of Engineers: Water Resource Authorization and Project Delivery Processes'). Congress has granted USACE general authorities to undertake some projects of limited scope and cost without requiring project-specific congressional authorization. These USACE authorities to undertake such projects are referred to as Continuing Authorities Programs (CAPs). Congress has consistently funded eight USACE CAPs in annual appropriations since FY2013."
CRS In Focus, IF11106
Congressional Research Service: https://crsreports.congress.gov/