45 C.F.R. § 601.8 Access to classified materials.
Title 45 - Public Welfare
No person may be given access to classified information unless that person has been determined to be trustworthy and unless access is essential to the accomplishment of lawful and authorized Government purposes.
Title 45: Public Welfare
PART 601—CLASSIFICATION AND DECLASSIFICATION OF NATIONAL SECURITY INFORMATION
§ 601.8 Access to classified materials.