This is a full and open competition for Engine Water Wash services to support multiple U.S. Air Force jet engines across approximately 33 locations within the continental United States. The contract will be a Firm Fixed-Price, single-award IDIQ with a one-year base period and four one-year options, for a total potential performance period from 20 June 2026 through 19 June 2031. Services are required for an estimated 700 engines annually, with washes occurring simultaneously at multiple locations. All prospective offerors must be registered in the System for Award Management (SAM). Questions must be submitted in writing by 18 March 2026.