14 C.F.R. § 252.13 Small aircraft.
Title 14 - Aeronautics and Space
Air carriers shall prohibit smoking on aircraft designed to have a passenger capacity of 30 or fewer seats. Note to §252.13: This section, like the rest of this part, does not apply to on-demand services of air taxi operators; see §252.2 in this part.
Title 14: Aeronautics and Space
PART 252—SMOKING ABOARD AIRCRAFT
§ 252.13 Small aircraft.