The airport overlay zones are established to provide areas near South Valley Regional Airport which, in the interest of the public health, safety and general welfare of Kearns, promote and preserve the function and utility of airport and aircraft activities in appropriate areas while preventing airport hazards from impacting persons or property in Kearns.

The airport overlay zone includes restrictive designations applied in addition to any other zone in this title. The airport overlay zone established and includes the following sub-zones as follows:

1. Runway Protection Sub Zone (RPSZ): A sub zone that commences at the end of and is equal to the width of the primary surface. Where the primary surface of the runway is one thousand feet (1000') wide, the clear zone shall expand outward uniformly to a width of one thousand five hundred and ten feet (1510') at a horizontal distance of one thousand seven hundred (1700') from the primary surface, its centerline being the continuation of the centerline of the runway.
2. Approach Sub Zone (AASZ): A sub zone starting two hundred feet (200') beyond the runway end at the runway end elevation elevation that is four hundred feet in width (400') centered on the extended runway centerline. The approach zone shall expand outward uniformly at a slope of 34 feet horizontally to 1 foot vertically to a width of three thousand four hundred feet (3400'), its centerline being a continuation of the centerline of the runway.
3. Noise Sub Zone (ANSZ): A sub zone determined by the exterior boundary of the projected airport activity noise level of sixty-five (65) dB.
4. Horizontal Sub Zone (AHSZ): A sub zone, the perimeter of which in constructed by swinging arcs of a ten thousand feet (10,000') radius from a point on the centerline and two hundred feet (200') beyond the end of each runway and connecting and adjacent arcs by lines tangent to those arcs. The height being one hundred and fifty feet (150') above the runway end elevation.
5. Conical Sub Zone (ACSZ): A sub zone that commences at the periphery of the horizontal zone and extends outward therefrom a horizontal distance of four thousand feet (4000'). With a height starting at the same elevation as the AHSZ and sloping upward at a slope of twenty (20') feet horizontally to one (1') foot vertically.
6. Designation: The airport overlay zone and its sub zones shall be designated on the zoning map by affixing the suffixes RPSZ, AASZ, ANSZ, AHSZ, and ACSZ in parentheses after the applicable zone designation, e.g., P-F (Ac)
7. Overlay Zones Supersede: The regulations of the airport overlay zone and its sub zones shall supersede the regulations of the zones to which they are attached.

1. Lands to Which the Airport Overlay Zone Applies: The airport overlay zone shall be applied to all land within the airport overlay zone designated on the zoning map, as periodically amended.
2. Establishment of Official Airport Overlay Map: The official airport overlay map, together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of this title. The official airport overlay map is based on the airport area of influence as established by Salt Lake City Corporation, owner of South Valley Regional Airport, in conjunction with the Federal Aviation Administration, and shall be on file in the offices of the City Recorder and the Development Services Department.
3. Rules for Interpretation of Airport Overlay Boundaries: Boundaries of the airport overlay zone and its sub zones shall be determined be scaling distances on the official airport overlay map. Where interpretation is needed as to exact location of the boundaries of the airport overlay zone and its sub zones, the Director shall make the necessary interpretation, subject to appeal to the board of adjustment as provided in this title.
4. Warning and Disclaimer of Liability: This article does not imply that areas outside the airport overlay boundaries or land uses permitted within the airport overlay zone and its sub zones will be free from noise or hazards related to airport activities. Therefore, this article shall not create liability on the part of Kearns or its officers or employees for any damages that result from reliance on this article, or any administrative decision made under this article.

1. Special Use Provision in RPSZ and AASZ Overlay Zones: No activities or uses shall be permitted in RPSZ and AASZ sub zones which will:
   1. Fail to comply with 14 C.F.R. Part 77.
   2. Direct a steady light or flashing light of white, red, green or amber color toward an aircraft engaged in a takeoff or toward an aircraft engaged in a takeoff or toward an aircraft engaged in a straight final approach toward a landing at an airport other than a Federal Aviation Administration approved navigational signal light or visual approach slope indicator.
   3. Cause sunlight to be reflected toward an aircraft engaged in an initial straight climb following takeoff or toward an aircraft engaged in a straight final approach toward a landing at an airport.
   4. Generate smoke which could attract large concentrations of birds or which may otherwise affect safe navigation within this area.
   5. Generate electrical interference that may be detrimental to the operation of an aircraft and/or airport instrumentation.
2. Height Restrictions: No structural intrusion shall be permitted that does not comply with the requirements of 14 C.F.R. Part 77.
3. Area, Yard and Coverage Regulations: Except as modified by this chapter, all area, yard and coverage regulations shall be the same as those in the unrestricted zones provided for in this title.

As soon as reasonably practicable following the receipt of an application for an activity or use within the airport overlay zone, the director shall notify he applicant in writing of the requirements of the applicable airport overlay sub zone in which the activity or use is located and that the activity or use may experience overflights and associated noise.