The Department of Defense, specifically the Naval Air Warfare Center Aircraft Division (NAWCAD), intends to negotiate a sole source contract modification with CACI for continued support of critical Signals Intelligence (SIGNIT) and Electronics Intelligence (ELINT) systems. This modification will extend the existing contract (N00421-22-C-0025) by adding two option years to ensure uninterrupted support, leveraging CACI's unique expertise and existing knowledge of the program. The services required include production systems engineering, system upgrades, maintenance, troubleshooting, training, and documentation, all vital for the operational readiness of these systems. Interested parties can contact Jessica Johnson at jessica.l.johnson450.cvi@us.navy.mil for further information, noting that this notice does not constitute a request for competitive proposals.