How often do personnel with Secret clearances need to undergo reinvestigation?

Personnel with Secret clearances are required to undergo reinvestigation every five years. This schedule is established to ensure that individuals with access to classified information continue to meet the necessary standards of trustworthiness, reliability, and loyalty. During the reinvestigation process, various aspects of an individual's background, including personal conduct, financial status, and associations, are reviewed to identify any issues that may have arisen since the previous clearance was granted. Regular reinvestigations help mitigate security risks and maintain the integrity of the security clearance process.