What identifies the occasion for reporting marks on regular Marines?

The correct identification of the occasion for reporting marks on regular Marines is the transfer. In the context of the Marine Corps, reporting marks are evaluations made to ensure that individual performances are recorded accurately, particularly when a Marine is transferring from one unit to another. This evaluation serves to provide the receiving command with critical insights into the Marine’s performance, leadership potential, and other important attributes.

When a Marine is being transferred, it is an opportune moment to assess their progress and document their accomplishments. This helps to maintain an updated and accurate record of the Marine's performance history. Reporting marks associated with transfers are crucial for ensuring that the new command knows the capabilities and development needs of the incoming personnel.

Other occasions like annual, semiannual, or biannual marks generally refer to timeframes for performance evaluations, but they are not specifically tied to the critical transition period that occurs during a transfer. Hence, the transfer occasion is the most pertinent context for reporting marks, emphasizing the importance of transitioning personnel assessments between commands effectively.