A lawful husband or spouse of a member or former member. The partner of a deceased member or retiree must not be remarried. A former partner additionally may qualify for advantages as a dependent spouse. A former partner is a partner who was married to a navy member, or former member, but whose marriage has been terminated by a ultimate decree of divorce, dissolution or annulment. To be eligible for CHAMPUS advantages, a former spouse must meet the standards described in paragraphs by way of of this section and should qualify underneath the group defined in paragraph or of this part. The Medicare wraparound coverage possibility of the TRICARE program made available to an eligible beneficiary by reason of 10 U.S.C. 1086.