Intelligence Community Policy Guidance Number 704.5: Intelligence Community Personnel Security Database Scattered Castles (Effective 02 October 2008) [open pdf - 228KB]
This Intelligence Community Policy Guidance (ICPG) "applies to the Intelligence Community (IC), as defined by the National Security Act of 1947, as amended, and other departments or agencies that may be designated by the President, or designated jointly by the Director of National Intelligence (DNI), and the head of the department or agency concerned, as an element of the IC or those government entities designated to determine eligibility for Sensitive Compartmented Information (SCI) access. Furthermore, this ICPG "mandates the recognition and use of the Scattered Castles (SC) database, or successor database, as the IC's authoritative personnel security repository for verifying personnel security access approvals regarding SCI and other controlled access programs, visit certifications, and documented exceptions to personnel security standards."
Intelligence Community Policy Guidance No. 704.5; ICPG 704.5
Office of the Director of National Intelligence: http://www.dni.gov/