When does the annual review of secondary dependents occur?

The correct answer indicates that the annual review of secondary dependents takes place according to a predetermined schedule. This ensures that reviews are consistent and managed effectively throughout the year, allowing for proper administrative oversight and updates to dependent status.

Establishing a predetermined schedule helps streamline the process, allowing service members and the administration to plan appropriately for these reviews. It is essential to regularly assess the status of secondary dependents to maintain accurate records and ensure that any necessary updates to benefits or other entitlements are made in a timely manner.

While rereviewing at specific events, such as reenlistment or at calendar year's end, can occur, they do not represent the structured approach outlined in the correct answer. Similarly, associating the review specifically with the months of March and September implies a limited focus that does not encompass the broader, more systematic process indicated by a predetermined schedule.