14 C.F.R. § 31.61 Static discharge.
Title 14 - Aeronautics and Space
Unless shown not to be necessary for safety, there must be appropriate bonding means in the design of each balloon using flammable gas as a lifting means to ensure that the effects of static discharges will not create a hazard. [Amdt. 31–2, 30 FR 3377, Mar. 13, 1965]
Title 14: Aeronautics and Space
PART 31—AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS
Subpart D—Design Construction
§ 31.61 Static discharge.
