ACRP
03 July 2026
Mechanisms to Address Off-Airport Obstructions
Protecting airport approaches, departures, and flight routes from intrusion by tall objects helps ensure the safety of people both on the ground and in the air. In the absence of zoning standards intended to restrict such obstructions, communities may inadvertently permit development that creates hazards to aircraft operations. Aviation obstructions—such as tall buildings, towers, natural features like mountains and trees, and even temporary structures like construction cranes—pose potential risks to aircraft navigation. These obstructions can negatively affect the safety and capacity of the airspace and airport operations.
