1. "Airport" means Phoenix Sky Harbor International Airport, as the context requires, and any area of land or water designed and used for the landing and takeoff of aircraft, and utilized or designated to be utilized by the public for those purposes.

2. "Airport Board of Adjustment" or "Board" means the Board created by this Article. The Board will hear appeals when there is alleged error in any order, requirement or decision made by the aviation director in the enforcement of this Article, and grant variances in accordance with the terms of this Article.

3. "Airport elevation" means the highest point of an airport’s usable landing area measured in feet from mean sea level.

4. "Airport hazard" means any temporary or permanent obstacle, structure, object, tree or use of land which obstructs the airspace required for, or is otherwise hazardous to, the flight of aircraft in landing or takeoff, or which is determined by the Federal Aviation Administration to be a hazard to air navigation.

5. "Airport Zoning Commission" or "Commission" means the Commission created pursuant to A.R.S. Section 28-8467 and by this Article, which will recommend the boundaries of the various zones to be established and the regulations to be adopted and perform other duties required by law.

6. "Airport zoning map" means those maps that have been, or may hereafter, be published to show the various surface areas and vertical zones within which may exist airport hazards for each of the airports under the jurisdiction of the City.

7. "Height". For the purpose of determining the height limits in all zones established in this Article and shown on the airport zoning maps, the datum shall be mean sea level elevation unless otherwise specified.

8. "MSL" mean sea level. Elevation (on the ground) or altitude (in the air) of any object, relative to the average sea level datum.

9. "Nonconforming use" means any permanent obstacle, structure, tree, or use of land lawfully existing as of the effective date of this Article, which does not conform to a regulation prescribed in this Article or an amendment thereto, as of the effective date of such regulation.

10. "Person" means an individual, firm, partnership, corporation, company, association, joint stock association or body politic and includes a trustee, receiver, assignee, administrator, executor, guardian or other representative.

11. "Runway" a strip of land on an airport, on which aircraft can take off and land. Runways may be a man-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, or gravel).

12. "Structure" means an object, either temporary or permanent, constructed or installed by a person, including, without limitation, buildings, towers, cranes, derricks, smokestacks and overhead transmission lines.

13. "Maximum building height." maximum building height includes all rooftop appurtenances, obstruction lights, lightning arresting devices, etc. as shown below. Height elevations are above mean sea level (NAVD 88).

14. "Obstacle." any structure, growth, or other object, including a mobile object. (Ord. No. G-5179, § 1, 2008)