14 C.F.R. § 36.801 Noise measurement.
Title 14 - Aeronautics and Space
For primary, normal, transport, or restricted category helicopters for which certification is sought under appendix H of this part, the noise generated by the helicopter must be measured at the noise measuring points and under the test conditions prescribed in part B of appendix H of this part, or under an FAA-approved equivalent procedure. For those primary, normal, transport, and restricted category helicopters having a maximum certificated takeoff weight of not more than 7,000 pounds for which compliance with appendix J of this part is demonstrated, the noise generated by the helicopter must be measured at the noise measuring point and under the test conditions prescribed in part B of appendix J of this part, or an FAA-approved equivalent procedure. [Doc. No. 26910, 57 FR 42854, Sept. 16, 1992, as amended by Amdt. 36–25, 69 FR 31234, June 2, 2004]
Title 14: Aeronautics and Space
PART 36—NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION
Subpart H—Helicopters
§ 36.801 Noise measurement.
