14 C.F.R. § 31.31 General.
Title 14 - Aeronautics and Space
The suitability of each design detail or part that bears on safety must be established by tests or analysis.
Title 14: Aeronautics and Space
PART 31—AIRWORTHINESS STANDARDS: MANNED FREE BALLOONS
Subpart D—Design Construction
§ 31.31 General.
