49 C.F.R. § 8.1
This part sets forth procedures for the classification, declassification, and availability of information that must be protected in the interest of national security, in implementation of Executive Order 13526 of December 29, 2010, "Classified National Security Information;" and for the review of decisions to revoke, or not to issue, national security information clearances, or to deny access to classified information, under Executive Order 12968 of August 2, 1995, "Access to National Security Information," as amended by Executive Order 13467 of June 30, 2008, "Reforming Processes Related to Suitability for Government Employment, Fitness for Contractor Employees, and Eligibility for Access to Classified National Security Information."
49 C.F.R. §8.1