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Simply stated, a SCIF is a U.S. Government accredited facility where Sensitive Compartmented Information (SCI) can be stored, discussed or electronically processed. Primarily Government and government-related contractors that require high security have the need for SCIFs. The areas of concern and special attention typically include physical security and hardening, acoustics controls, visual controls, access control, electronic and TEMPEST security.

The minimum requirements for SCIFs are defined in Intelligence Community Directive (ICD) 705/ IC Technical Specification. The directive describes many specialized construction requirements with the intention to ensure that high security features are built into the facility beyond those achieved by typical commercial construction. For example, all perimeter surfaces (walls, ceilings and floor) are to be constructed so that they will reveal evidence of unauthorized entry or tampering. Depending on each project’s individual performance requirements, additional materials may be required for construction, such as radiant barrier foil, physical perimeter hardening by use of expanded metal with heavier gauge metal studs, as well as additional protective acoustical features to prevent eavesdropping and collection of audio intelligence emanating from the SCIF. There are various methods of achieving the proper protective measures required for a fully accredited facility and these various methods can have a substantial cost impact on the project. Since the selection of which methods are to be used is determined by each project’s unique characteristics such as “Open” or “Closed” storage, Security in Depth (SID), Inspectable Space, as well as the surrounding conditions, it is most beneficial in terms of both time and money to properly design the facility prior to construction.

A few of the many specialized requirements are;

* All telephone, electrical power, security systems, data and emergency systems equipment must be dedicated to and contained within the SCIF. Any utility that enters the SCIF should terminate in the SCIF and not traverse through the space. Where the conduit for any of these systems penetrate the SCIF perimeter, they must be treated to minimize the chance of compromise. Fire sprinkler systems and other metallic materials that penetrate SCIF perimeter must be grounded or use dielectric unions. Additional shielding or isolation is often required to prevent interference or electronic eavesdropping through electromagnetic or radio frequencies.
* There are very specific requirements for ductwork. For example, if ductwork for mechanical operations has openings in the SCIF larger than 96 square inches, they must be equipped with steel man bars that are ½-inch in diameter and 6 inches on center each way, welded at the intersections, with inspection ports inside the SCIF. The openings, the ductwork and the duct breaks must also have special sections inserted to secure audio and electronic emanations from leaving the SCIF space.
* In most cases the perimeter doors must utilize two access control technologies. The first one for operational day-to-day use, and the second for high security lock up when personnel leave the space unattended. The door and frame assembly must not only meet local building and fire/life safety requirements, but must also achieve the same specified Sound Transmission Class (STC) rating as the perimeter wall assemblies of the facility.
* There are also requirements for UL2050 certified installers and UL2050 approved components to be used for the Intrusion Detection Systems (IDS).

These are just a few of the technical construction specifications that must be adhered to in order to have a properly constructed facility that is ready for Government accreditation and program use.