14 C.F.R. § 16.227 Standard of proof.
Title 14 - Aeronautics and Space
The hearing officer shall issue an initial decision or shall rule in a party's favor only if the decision or ruling is supported by, and in accordance with, reliable, probative, and substantial evidence contained in the record and is in accordance with law.
Title 14: Aeronautics and Space
PART 16—RULES OF PRACTICE FOR FEDERALLY-ASSISTED AIRPORT ENFORCEMENT PROCEEDINGS
Subpart F—Hearings
§ 16.227 Standard of proof.