This document summarizes a request for proposals for the TRICARE Competitive Plans Demonstration project. The Defense Health Agency issued solicitation number HT9402-23-R-0001 to procure competitive health plans for TRICARE beneficiaries. Proposals are due by the date specified in Section L of the solicitation package. The selected contractors will provide managed care support for TRICARE eligible beneficiaries in designated geographic regions. The contract awards will have a base period of performance from October 1, 2023 through December 31, 2024, with four one-year option periods to extend through December 31, 2028. Pricing will be negotiated with awardees and the final contract type will be cost-plus-fixed-fee.