In order to prevent the creation or establishment of airport hazards, any political subdivision or subdivisions owning, controlling, or operating an airport, or those within or partly within fifty thousand (50,000) feet of a military airfield control tower, may adopt, administer, and enforce, in the manner and upon the conditions hereinafter prescribed, airport zoning regulations for such airport hazard area, whether such hazard area is located within or without the territorial limits of such subdivision, which regulations may divide such area into zones, and, within such zones, specify the land uses permitted and regulate and restrict the height to which structures and trees may be erected or allowed to grow: Provided, That the governing body of any political subdivision within the boundaries of which, or within five (5) miles of the territorial limits of which is located a privately owned airport which uses its facilities to provide a service to the public, may exercise zoning powers granted herein if in the opinion of said governing body such action is necessary to protect the public interests in the services afforded by said privately owned airport.