Prohibits the Secretary of Defense from re-imposing a Department-wide COVID-19 vaccine mandate unless Congress expressly authorizes it. It also creates explicit legal remedies for service members who were discharged or otherwise punished solely because of their COVID-19 vaccination status: they can seek upgraded (honorable) discharges, reinstatement with back pay and benefits, expungement of adverse records, and reimbursement of any required bonus repayments.

The Department of Defense must try to retain unvaccinated members, set processes for exemptions, and establish procedures for reimbursing bonuses and handling administrative relief. The bill does not specify an effective date in the text provided.