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AIRPORT OVERLAY ZONES.

Austin City Code § 25-13-41
in effect
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§ 25-13-41 - AIRPORT OVERLAY ZONES. (A) Within the controlled compatible land use area, the following airport overlay zones are created: (1) Airport overlay zone one (AO-1) consists of the portions of the controlled compatible land use area that have a yearly day-night average sound level of at least 70 decibels and not more than 75 decibels. (2) Airport overlay zone two (AO-2) consists of the portions of the controlled compatible land use area that have a yearly day-night average sound level of at least 65 decibels and not more than 70 decibels. (3) Airport overlay zone one (AO-3) consists of the portions of the controlled compatible land use area that have a yearly day-night average sound level of less than 65 decibels and are located within approximately one-half mile of the 65 decibel contour line. (B) The controlled compatible land use area and the airport overlay zones are depicted on the Austin-Bergstrom International Airport Land Use Map on file with the City Department of Aviation. The director of the Department of Aviation shall determine the location or meaning of a boundary or other feature on the map. Source: Ord. 010809-78; Ord. 031211-11.
Source: City of Austin, City Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/tx/austin/codes/code_of_ordinances?nodeId=TIT25LADE_CH25-13AIHACOLAUSRE_ART3COLAUS_S25-13-41AIOVZOFetched: 10/27/2026

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