41 C.F.R. § 51-11.4
(a) In any Federal or State case or matter in which the United States is not a party, no employee or former employee of the Committee shall, in response to a demand, produce any record contained in the files of the Committee, or disclose any information relating to or based upon record contained in the files of the Department, or disclose any information or produce any record acquired as part of the performance of that person's official duties or because of that person's official status without prior written approval of the General Counsel in accordance with § 51-11.9.
(b) In any Federal or State case or matter in which the United States is a party, the General Counsel is authorized to reveal and furnish to any person, including an actual or prospective witness, a grand jury, counsel, or a court, either during or preparatory to a proceeding, such testimony, and relevant unclassified material, documents, or information secured by the employee or former employee of the Committee, as the General Counsel shall deem necessary or desirable to the discharge of the attorney's official duties: Provided, Such an attorney shall consider, with respect to any disclosure, the factors set forth in § 51-11.7.