Which system provides online updates to DEERS and supports ID card issuance?

The Real-Time Automated Personnel Identification System (RAPIDS) is the correct answer because it serves the specific function of facilitating the issuance of ID cards and providing online updates to the Defense Enrollment Eligibility Reporting System (DEERS). RAPIDS is the system used by military personnel and their eligible family members to obtain ID cards and manage their status in DEERS, ensuring accurate records are maintained for eligibility concerning various benefits and services.

RAPIDS operates in real time, allowing personnel to update information immediately upon changes, streamlining the process of maintaining current records on individuals entitled to military benefits. This capability is essential for ensuring that eligible personnel and their families have access to the appropriate resources without delays.

While DEERS is a critical component for tracking eligibility for military benefits, it does not directly handle the issuance of ID cards; rather, it relies on RAPIDS for that function. The Defense Biometric Identification System (DBIDS) is focused on security and access control rather than ID card issuance. The Common Access Card (CAC) is a type of ID card but does not itself provide the system to issue or update records on eligibility. Hence, RAPIDS stands out as the primary system for both online updates to DEERS and ID card issuance.