List Of U.s. Security Clearance Terms Article Index for
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List Of U.s. Security Clearance Terms




Security Clearance descriptors often appear in employment advertisements, as employers generally prefer to hire people who are already cleared to access Classified Information at the level needed for a particular job or contract.

This list is based on a list compiled by a nonauthoritative source on the Internet.

  • 1C or 2C - Federal

  • 3C or 4C - Federal

  • 5C or 6C - Federal

  • ADP 1

  • ADP 2

  • ATOMAL - NATO atomic secrets

  • CIA Lifestyle Polygraph

  • COMSEC

  • C - Confidential

  • CNWDI - Critical Nuclear Weapon Design Information

  • Cosmic - NATO classified material

  • Cosmic Top Secret - ATOMAL/CTSA

  • DEA Clearance - Drug Enforcement Administration

  • DISA - Defense Information Systems Agency

  • DISCO - Defense Industrial Security Clearance Office

  • DOD - Department Of Defense

  • DOD Lifestyle Polygraph

  • DOD Secret

  • DOD - Top Secret SSBI

  • DOE - U.S. Department Of Energy

  • DOE - Nuclear

  • DOE - C -- confidential restricted data

  • DOE - L -- secret restricted data

  • DOE - Q -- Top secret restricted data

  • DOJ � NACI — U.S. Department Of Justice

  • DOJ - Sensitive

  • DOJ - Secret

  • DOJ - Top Secret

  • EBI - Extended Background Investigation

  • FAA Clearance

  • FBI

  • FOUO - For Official Use Only

  • Foreign Government Information

  • Industrial Clearance

  • Inactive Clearance

  • Inactive Top Secret Crypto

  • Interim Secret

  • Interim Top Secret

  • Interim TS / SCI

  • IRS - MBI

  • ITAR - International Treaty on Arms Reduction (export is restricted)

  • MBI (IRS)

  • NAC

  • NASA

  • NATO

  • NATO Secret

  • NOFORN - No Foreign (access restricted to US citizens)

  • NSA Lifestyle Polygraph

  • Position of Public Trust 1C

  • Position of Public Trust 2C

  • Position of Public Trust 3C

  • Position of Public Trust 4C

  • Position of Public Trust 5C

  • Position of Public Trust 6C

  • Polygraph - Counterintelligence

  • Polygraph - Full Scope / Lifestyle

  • SAR - Special Access Required

  • S - Secret

  • Secret COMSEC

  • Secret SBI

  • SIDA - Secured Identification Defense Area

  • SIOP - war plans

  • SAP - Special Access Programs

  • SBI - Special Background Investigation

  • SBPR - Single Scope Background Investigation (SSBI) Periodic Reinvestigation

  • SCI - Sensitive Compartmented Information

  • SCIF - Sensitive Compartmented Information Facility

  • SI / TK - subcategories of SCI for image intelligence ( IMINT ) work: SI - special intelligence, and TK - talent keyhole, referring to certain imaging intelligence satellites. Rhyolite refers to SIGINT (signal intelligence) satellites.

  • SSBI - Single Scope Background Investigation

  • Technology

  • TS - Top Secret

  • Top Secret-Crypto - Cryptography

  • Top Secret-Crypto SCI / TK / G / HCS-P

  • Top Secret-Final / Crypto / Polygraph

  • Top Secret-SCI / SBI

  • Top Secret-SCI / HCS (human intelligence control system)

  • Top Secret-SCI / SI / TK

  • Top Secret-SCI / SI / TK / G / B

  • Top Secret-SCI / SI / TK / G / HCS

  • Top Secret-SCI / SIOP (as far as I know this designation does not exist. Makes no sense for SIOP-ESI to be also classified SCI)

  • Top Secret-SCI / SSBI

  • Top Secret-SBI-TS/SBI

  • Top Secret-CISP-TS/CISP

  • Top Secret-ISSA-TS/ISSA

  • Top Secret-SAP-TS/SAP

  • Top Secret-SCI-CI polygraph-TS/SCI/CI Poly

  • Top Secret-SCI-Full/Scope Lifestyle-TS/SCI Lifestyle Poly

  • Top Secret-SCI-TS/SCI (Sensitive Compartimetalized Information-report)

  • Top Secret-SSBI-TS/SSBI

  • Top Secret-SCI /SSBI / SI / TK

  • Top Secret-SCI / TK / G / HCS / CI Poly

  • Top Secret-SCI / TK / G / Lifestyle Poly

  • Top Secret-SCI / SSBI / CI Poly

  • Top Secret-SI / TK / B / +

  • Top Secret-SSBI / CI Poly

  • Top Secret-SSBI / SCI / TK / G / HCS

  • Top Secret-SSBI / Lifestyle Poly

  • Top Secret-SSBI / SCI (Sensitive Compartimentalized Information-report)

  • Top Secret-SSBI / SCI/ SI / TK / G

  • Top Secret-SSBI / SCI / SI / TK / G / B / HCS

  • Top Secret-SSBI / SCI / TK / HCS

  • Top Secret-SSBI / SCI-B

  • Top Secret-EBI

  • Top Secret-SCI - SI / TK / G / HCS / I / P

  • Top Secret-CISP - TS / CISP

  • Top Secret-ISSA - TS / ISSA

  • Top Secret-SAP - TS / SAP

  • Top Secret-SCI - CI Poly - TS / SCI / CI Poly

  • Top Secret-SCI - Full / Scope Lifestyle - TS / SCI Lifestyle

  • Top Secret-SCI - TS / SCI (Sensitive Compartimentalized Information-report)

  • Top Secret-SSBI - SCI / TK / B / HCS / CI - Poly

  • Top Secret-SSBI - TS / SSBI

  • U.S. Citizen

  • U.S. Customs

  • US Treasury Clearance

  • USPS

  • VR

  • Yankee Fire

  • Yankee White