Airport zoning is a legal and urban planning tool used by local governments to regulate the use of land and the height of structures in the vicinity of an airport. The primary purpose is safety and operational integrity. It is divided into two main categories: Height Zoning and Land Use Zoning. Height zoning ensures that buildings, cell towers, or trees do not penetrate the "protected" airspace (Imaginary Surfaces) required for aircraft to take off and land safely, especially during low-visibility conditions. Land use zoning restricts "incompatible" activities, such as building schools or hospitals in high-noise zones, or preventing the development of landfills or ponds that might attract birds and cause "bird strikes." In 2026, airport zoning has become increasingly complex as planners must also account for drone flight corridors and the potential for Advanced Air Mobility (AAM) landing pads. Without strict zoning, an airport risks losing its federal funding or being forced to shorten its runways due to encroaching obstacles.