14 C.F.R. § 36.101 Noise measurement and evaluation.
Title 14 - Aeronautics and Space
For transport category large airplanes and jet airplanes, the noise generated by the airplane must be measured and evaluated under appendix A of this part or under an approved equivalent procedure. [Amdt. 36–54, 67 FR 45212, July 8, 2002]
Title 14: Aeronautics and Space
PART 36—NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION
Subpart B—Transport Category Large Airplanes and Jet Airplanes
§ 36.101 Noise measurement and evaluation.