Md. Code, Transportation § 5–416

(a) As provided in this section, a political subdivision of this State, whether acting alone or jointly with another political subdivision, may:

(1) Establish or operate any airport, airport facility, or air navigation facility; and

(2) For this purpose, use any suitable property owned or controlled by the political subdivision.

(b) An airport or facility may be established under this section:

(1) By a county, only within its boundaries or the boundaries of any other county with which it is acting jointly; and

(2) By Baltimore City or a municipal corporation, either within or without its boundaries.