This part applies to demands and requests to employees of OPM in legal proceedings in which OPM is not a named party, for factual or expert testimony relating to official information or for production of official records or information. However, it does not apply to:

(a) Demands upon or requests for a current OPM employee to testify as to facts or events that are unrelated to his or her official duties or that are unrelated to the functions of OPM;

(b) Demands upon or requests for a former OPM employee to testify as to matters in which the former employee was not directly or materially involved while at OPM;

(c) Requests for the release of records under the Freedom of Information Act, 5 U.S.C. 552,or,5.S.C. 552(a); and

(d) Congressional or Government Accountability Office (GAO) demands and requests for testimony or records.