Final answer:
The required form to enroll a family member in DEERS is DD Form 1172-2. This enrollment is necessary for military benefits eligibility, and the sponsor must provide accurate information and supporting documentation.
Step-by-step explanation:
The form required to enroll a family member in DEERS, which stands for Defense Enrollment Eligibility Reporting System, is DD Form 1172-2. DEERS is a database of military sponsors, their family members, and others who are eligible for military benefits, including TRICARE. The enrollment form, DD Form 1172-2, is used to register family members for eligibility of benefits and should be completed and submitted to the appropriate military personnel office or ID card issuing facility.
It's crucial for the service member or sponsor to ensure that all information on the form is accurate and to provide the necessary documentation, such as marriage certificates for spouses or birth certificates for children, to fully enroll their family members into DEERS.