14 C.F.R. § 27.1367 Switches.
Title 14 - Aeronautics and Space
Each switch must be— (a) Able to carry its rated current; (b) Accessible to the crew; and (c) Labeled as to operation and the circuit controlled.
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart F—Equipment
Electrical Systems and Equipment
§ 27.1367 Switches.