As used in this part, unless the context otherwise requires:
- (1) "Airport" means any area of land or water designed and set aside for the landing and taking-off of aircraft and utilized or to be utilized in the interest of the public for these purposes.
- (2) "Airport hazard" means any structure or tree or use of land which obstructs the airspace required for the flight of aircraft in landing or taking-off at an airport or is otherwise hazardous to the landing or taking-off of aircraft.
- (3) "Airport hazard area" means any area of land or water upon which an airport hazard might be established if not prevented as provided in this part.
- (4) "Political subdivision" means any municipality, city, town, or county.
- (5) "Structure" means any object constructed or installed by man, including buildings, towers, smokestacks, and overhead transmission lines.
- (6) "Tree" means any object of natural growth.