34 C.F.R. § 381.31
(c) Except as limited in paragraph (d) of this section, the Secretary or other Federal or State officials responsible for enforcing legal requirements must be given complete access to all—
(d)
(2) However, notwithstanding paragraph (d)(1) of this section, if an audit, monitoring review, State plan assurance review, evaluation, or other investigation has already produced independent and reliable evidence that there is probable cause to believe that the eligible system has violated its legislative mandate or misused Federal funds, the eligible system shall disclose, if the Secretary so requests, the identity of, or any other personally identifiable information (i.e., name, address, telephone number, social security number, or other official code or number by which an individual may be readily identified) related to, any individual requesting assistance under the PAIR program, in accordance with the principles of common law as interpreted by the courts of the United States.
(Authority: Sections 12(c) and 509(h) of the Rehabilitation Act of 1973, as amended; 29 U.S.C. 709(c) and 794e(h))