Final answer:
When reenlisting in the military, a new service record must be prepared. This record keeps track of important events during a person's military service. The guidelines and regulations for preparing the new service record are outlined in the authority that should be referenced for each case.
Step-by-step explanation:
Upon reenlistment, a new service record shall be prepared. This service record is a record of promotions, reductions, transfers, casualties, and other important events that have occurred during the individual's active service. The guidance for preparing the new service record can be found in the authority that should be quoted for each case. This authority provides the necessary guidelines and regulations to ensure the accurate and proper documentation of the individual's military history.