14 C.F.R. § 406.157 Expert or opinion witnesses.
Title 14 - Aeronautics and Space
An employee of the FAA may not be called as an expert or opinion witness for any party other than the agency, in any proceeding governed by this part. An employee of a respondent may not be called as an expert or opinion witness for the complainant in any proceeding governed by this part to which the respondent is a party.
Title 14: Aeronautics and Space
PART 406—INVESTIGATIONS, ENFORCEMENT, AND ADMINISTRATIVE REVIEW
Subpart B—Rules of Practice in FAA Space Transportation Adjudications
§ 406.157 Expert or opinion witnesses.
