StacksVerified U.S. regulatory reference

14 CFR §406.157

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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.