The Department of Defense, specifically the Department of the Air Force, is soliciting proposals for the E-4B National and Nuclear Communication Support (N2CS) Services, aimed at procuring sustainment and modernization services for mission communications systems aboard E-4B aircraft. The contract will encompass a range of services including engineering, program management, cybersecurity support, and facilities management, which are critical for maintaining the aircraft's role as a command and control communications center during national emergencies. The total estimated contract ceiling is $984 million, with a ten-year ordering period and a minimum order amount of $500,000, and interested parties must submit an approved DD 2345 form to access the draft RFP documents. For further inquiries, Amanda Jones and Lisa Murrell can be contacted via email or phone.