At what minimum AGL altitude should pilots avoid noise-sensitive areas?

The minimum AGL altitude at which pilots should avoid noise-sensitive areas is 3,000 feet. This height is established based on guidelines that aim to minimize disturbance caused by aircraft noise in residential areas, wildlife habitats, and other noise-sensitive locations.

Flying at this altitude helps ensure that the aircraft is high enough to significantly reduce noise levels upon approach and departure, thus adhering to regulations and maintaining community relations. Adhering to this altitude also assists pilots in complying with local noise abatement procedures and enhances safety during operations in proximity to these sensitive areas.

While the other altitudes listed may seem reasonable, they do not align with the general aviation practices and local government regulations that typically recommend 3,000 feet as a suitable minimum to effectively mitigate noise impacts.