How often should classified materials be reviewed for relevance?

The correct response highlights that classified materials should be reviewed regularly, in accordance with established guidelines or schedules. This approach ensures that classified information remains relevant and necessary for continued protection, particularly as the context or sensitivity may change over time. Regular reviews help organizations mitigate risks associated with the maintenance of outdated or unnecessary classified information. By adhering to a systematic review schedule, agencies can ensure compliance with regulatory requirements, track the relevance of classified information, and appropriately declassify materials that no longer meet the criteria for classification. This proactive measure is crucial in the management of classified information and maintaining national security.