RFP Response Date is hereby extended until 10/24/2025 10:00AM. See Amendment 0003 attached. This RFP will not be extended any further. The Naval Surface Warfare Center Philadelphia Division (NSWCPD) is a Department of Defense entity responsible for research and development, test and evaluation, engineering and fleet support organization for the Navy?s ships, submarines, military watercraft and unmanned vehicles. This requirement is for NSWCPD Department 50, which is responsible for the Machinery Control Systems (MCS), Damage Control Systems (DCS), Integrated Ship Control Systems (ISCS), and other Steam and Auxiliary Systems on various ship classes. The mission of NSWCPD is to transition hull mechanical, and electrical (HME) machinery technology to the U.S. Navy active/reserve Fleet and support various sponsors for Department of Defense and Navy Modernization Programs. This requires development and execution of various Ship Changes (SCs) and Ship Alterations (SHIPALTs) to upgrade and maintain system/equipment readiness of various Navy HME and electronic systems in a cost-effective and timely manner. This contract primarily supports maintenance, readiness, large Modernization Programs and/or critical-path SCs/Alterations that are accomplished in various availabilities including Navy Chief Naval Operation (CNO) availabilities. NOTE: As outlined in the RFP, proposals are to be submitted via the PIEE Solicitation Module. Details on how to access and uploaded proposals is included in the attachments.