Md. Code, Health - General § 21–1205

(a) A person who violates § 21-819 of this title is guilty of a misdemeanor and on conviction is subject to:

(1) For a first offense, a fine not exceeding $300; or

(2) For a subsequent offense, a fine not exceeding $500.

(b) For purposes of this section, each day that a violation continues constitutes a separate offense.