Md. Code, Tax - Property § 8–302

(a) For purposes of the county property tax only, in any county in which authorized by the governing body of the county, an improved aircraft landing area may not be assessed to the owner of the real property on which it is located if the landing area is:

(1) located on privately owned land;

(2) used by the public; and

(3) licensed under Title 5 of the Transportation Article.

(b) The property eligible for an exemption under subsection (a) of this section may include an approach zone and taxiway.