Section 5-604 - Adoption of regulations(a) Subject to the provisions of this subtitle, each political subdivision of this State may adopt, under its police power, airport zoning regulations to protect the aerial approaches of: (1) Any airport not owned by this State and located in the political subdivision; and(2) Subject to § 5-609 of this subtitle, any airport owned by the political subdivision and located wholly or partly outside of the political subdivision.(b) If a political subdivision has or adopts a general zoning ordinance regulating the height of buildings, any airport zoning regulations adopted under this subtitle for all or a part of the same area may be made a part of the general zoning regulations and administered and enforced with them. However, the general zoning regulations may not limit the effectiveness or scope of any regulation adopted under this subtitle.