Maryland Code, Tax-General § 13-1014

(a)(1) A person who willfully possesses, sells, or attempts to sell unstamped or improperly stamped cigarettes in the State in violation of Title 12 of this article is guilty of a misdemeanor.

(2) If the number of unstamped or improperly stamped cigarettes that a person possesses, sells, or attempts to sell is 30 cartons or less, the person on conviction is subject to a fine not exceeding $500 or imprisonment not exceeding 3 months or both.

(3) If the number of unstamped or improperly stamped cigarettes that a person possesses, sells, or attempts to sell is more than 30 cartons, the person on conviction is subject to a fine not exceeding $1,000 or imprisonment not exceeding 1 year or both.