Which Part covers plane noise?

• A. Part 77
• B. Part 150
• C. Part 107
• D. Part 36

Answer: (D)

Plane noise is governed by the regulation that sets the noise certification standards for aircraft, including the required measurement methods and the maximum noise levels new airplanes must meet. This part directly defines how loud an aircraft can be and how that compliance is demonstrated during certification, which is precisely what “plane noise” is about. The other regulations address different topics: regulations about objects that could affect navigable airspace, rules for airport noise compatibility planning, and rules for operating small unmanned aircraft. Those areas don’t establish the actual noise limits or testing procedures for airplanes, making the noise-certification-focused regulation the best fit.