What are the various types of investigations for obtaining or maintaining a security clearance?
Periodic Reinvestigation (PR) A periodic reinvestigation (PR) is when a currently cleared individual is required to review, update and resubmit his or her security clearance application for a reinvestigation. Periodic Reinvestigations are routinely required every 5 years for those with Top Secret security clearances, every 10 years for those with Secret security clearances and every 15 years for those with Confidential security clearances. A Periodic Reinvestigation (PR) is done to ensure that a candidate should still have access to classified information. Random Periodic Reinvestigations (PRs) are also administered at the discretion of the granting federal agency. National Agency Check (NAC/LAC) A National Agency Check (NAC) is the type of investigation required for a Secret or Confidential security clearance. It includes a thorough review of the candidate’s national and local records. It generally does not require an interview with an investigator. Single Scope Background Investigati
