(a) If, as part of a proceeding in which the United States or the CFPB is not a party, official information is sought through a demand for testimony, CFPB records, or other material, the party seeking such information must (except as otherwise required by Federal law or authorized by the General Counsel) set forth in writing:
- (1) The title and forum of the proceeding, if applicable;
- (2) A detailed description of the nature and relevance of the official information sought;
- (3) A showing that other evidence reasonably suited to the requester's needs is not available from any other source; and
- (4) If testimony is requested, the intended use of the testimony, a general summary of the desired testimony, and a showing that no document could be provided and used in lieu of testimony.