The USAF KC-46 Program Office is seeking sources capable of providing comprehensive software integration, sustainment, and support for the KC-46A Tanker program, with a lead System Integrator to manage the entire KC-46 software enterprise. Key responsibilities include integrating software modifications from multiple OEMs and suppliers, providing lifecycle software maintenance, patching, and modernization, and overseeing airworthiness and cybersecurity compliance. The integrator would also coordinate test, certification, and deployment of software releases. This RFI is for market research and planning only and does not constitute an RFP; gathered information will refine the Government’s acquisition strategy. Interested parties with large-scale avionics software integration, sustainment, and program management experience are encouraged to review the full RFI for detailed requirements.