45 C.F.R. § 613.5
(a) Fellowships and other support. Pursuant to 5 U.S.C. 552a(k)(6), the Foundation hereby exempts from the application of 5 U.S.C. 552a(c)(3) and (d) any materials which would reveal the identity of references of fellowship or other award applicants or nominees, or reviewers of applicants for Federal contracts (including grants and cooperative agreements) contained in any of the following systems of records: