14 C.F.R. § 23.745 Nose/tail wheel steering.
Title 14 - Aeronautics and Space
(a) If nose/tail wheel steering is installed, it must be demonstrated that its use does not require exceptional pilot skill during takeoff and landing, in crosswinds, or in the event of an engine failure; or its use must be limited to low speed maneuvering. (b) Movement of the pilot's steering control must not interfere with the retraction or extension of the landing gear. [Doc. No. 27806, 61 FR 5166, Feb. 9, 1996]
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart D—Design and Construction
Landing Gear
§ 23.745 Nose/tail wheel steering.