What are the aircraft noise regulations?
What are the aircraft noise regulations? Under longstanding FAA policy, the threshold of significant aircraft noise exposure in residential areas is a Day-Night Average Sound Level of 65 decibels (dB). See the “Aviation Noise Abatement Policy,” issued by the Secretary of Transportation and the FAA Administrator in 1976.
WHO guidelines for airplane noise?
For average noise exposure, the GDG strongly recommends reducing noise levels produced by aircraft to below 45 dB Lden, as aircraft noise above this level is associated with adverse health effects.