National Guard and Reserve members with activation orders for more than 30 consecutive days in support of a contingency operation may be TRICARE-eligible for 180 days prior to mobilization and until either deactivation prior to mobilization or until 180 days after deactivation post-mobilization. They are considered Active Duty Service Members (ADSM) during the active duty period when on orders. Service members should not enroll in TRICARE Prime or TPR during the early eligibility period, but they must enroll (following command guidance and depending on location) when they reach their final duty stations.
Family members of National Guard and Reserve members may also become eligible for TRICARE if the National Guard or Reserve member (sponsor) is called to active duty for more than 30 consecutive days. These family members may enroll in TRICARE Prime or TPRADFM, depending on location, or they may use TRICARE Select. They are also eligible for dental coverage through TDP. Sponsors must register their family members in DEERS to establish TRICARE eligibility.