(a) In this subtitle the following words have the meanings indicated. (b) 'Commercial use airport' means any publicly or privately owned airport at which: (1) Landing or tie down fees are charged; (2) Aviation fuel or oil is sold; (3) Space is rented; (4) Goods or services are sold; or (5) Any other activity is carried on for remuneration. (c) 'Public use airport' means any publicly or privately owned airport that is open to flight operations by the public.
Maryland Legal Code