36 C.F.R. § 1256.56
(a) In accordance with 5 U.S.C. 552(b)(6), NARA will withhold records in personnel and medical and similar files containing information about a living individual that reveals details of a highly personal nature that, if released, would cause a clearly unwarranted invasion of personal privacy. Privacy information may include, but is not limited to, information about the physical or mental health or the medical or psychiatric care or treatment of the individual, and that:
(b) The Archivist of the United States may determine that this general restriction does not apply to: