14 C.F.R. § 25.995 Fuel valves.
Title 14 - Aeronautics and Space
In addition to the requirements of §25.1189 for shutoff means, each fuel valve must— (a) [Reserved] (b) Be supported so that no loads resulting from their operation or from accelerated flight conditions are transmitted to the lines attached to the valve. [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25–40, 42 FR 15043, Mar. 17, 1977]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart E—Powerplant
Fuel System Components
§ 25.995 Fuel valves.