FALLS CHURCH, Virginia, Nov. 12 -- Defense Health Agency issued the following news: Have you considered changing your family's TRICARE health plan for 2025? Now is your opportunity. TRICARE Open Season starts today, Nov. 11, and runs through Tuesday, Dec. 10. TRICARE Open Season is the annual period when anyone enrolled in or eligible for TRICARE Prime, the US Family Health Plan, or TRICARE Select can change their TRICARE health plan. Changes you make during open season will take effect Jan. 1  more