After a security clearance is granted, can it later be revoked?
Yes. There is a continuing evaluation requirement for all personnel holding security clearances. Department of Defense (DoD) regulations require the military services and DoD agencies to establish security programs so that supervisory personnel know their responsibilities in matters pertaining to the security cleared individuals under their supervision. Such programs provide practical guidance as to indicators that may signal matters of possible concern which would call into question whether it is in the best interests of the country for an individual to continue to hold a security clearance. Each service and agency provides supervisors with specific instructions regarding reporting procedures (for adverse information). Facility Security Officers (FSOs) are also obligated under the National Industrial Security Program Operating Manual (NISPOM) to report adverse information on security cleared employees. If considered necessary, on review of the reported information, the appropriate aut