Raytheon Co., Woburn, Massachusetts, is awarded a $87,531,901 indefinite-delivery/indefinite-quantity contract with cost-plus-fixed-fee and firm-fixed-price ordering provisions to provide engineering and program support services in support of the relocatable over-the-horizon radar at the Forces Surveillance Support Center, Chesapeake, Virginia, that include: critical software enhancements; software re-hosts; software maintenance, installation, removal, integration and testing, as well as associated engineering, technical, training and logistics support; support for systems engineering; engineering change proposal preparation and analysis; failure analysis; configuration management; preparation, installation and/or testing of field change kits; and logistics support. The contract will include a 48-month ordering period with no options. The base ordering period is anticipated to begin August 2023, and is expected to be completed by August 2027. Work will be performed in Chesapeake, Virginia (60%); Marlboro, Massachusetts (20%); New Kent, Virginia (6%); Corpus Christi, Texas (5%); San Juan, Puerto Rico (3%); Adelaide, Australia (1%); Dayton, Ohio (1%); Colorado Springs, Colorado (1%); Washington, D.C. (1%); Arlington, Virginia (1%), and Key West, Florida (1%). Fiscal 2023 operations and maintenance (Navy) funds in the amount of $2,000,000 will be obligated to fund the contract’s minimum amount, and funds will expire at the end of the current fiscal year. Individual task orders will be subsequently funded with appropriate fiscal year appropriations at the time of their issuance. One company was solicited for this sole-source procurement in accordance with Federal Acquisition Regulation 6.302-1 and one offer was received. Naval Supply Systems Command Fleet Logistics Center Norfolk, Contracting Department Philadelphia Office, Philadelphia, Pennsylvania, is the contracting activity (N00189-23-D-Z021).