14 C.F.R. § 25.1142 Auxiliary power unit controls.
Title 14 - Aeronautics and Space
Means must be provided on the flight deck for starting, stopping, and emergency shutdown of each installed auxiliary power unit. [Amdt. 25–46, 43 FR 50598, Oct. 30, 1978]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 25.1142 Auxiliary power unit controls.