01Personnel Security Clearance Overview
Federal security clearances authorize individuals to access classified national security information at Secret, Top Secret, or Sensitive Compartmented Information (SCI) levels.
The clearance process investigates background, evaluates trustworthiness, and determines eligibility based on adjudicative guidelines considering allegiance, foreign influence, financial considerations, personal conduct, and criminal conduct.
Clearance processing involves sponsorship by cleared contractor or government agency, investigation by Defense Counterintelligence and Security Agency (DCSA), and adjudication by appropriate authority.
Processing timelines vary by level and investigation type, ranging from months to over a year for initial Top Secret clearances.