Md. Code, Alcoholic Beverages and Cannabis § 26–504

(a) For purposes of applying § 2–314 of this article:

(1) a cash deposit for a returnable container shall be required at the time of sale or delivery of beer;

(2) a check accepted for payment that is not postdated and is promptly deposited for collection by the license holder is considered cash; and

(3) a check that is given in payment for beer to a license holder and is returned uncollected, is prima facie evidence of a violation by the wholesaler of § 2–314 of this article.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 6 months or a fine not exceeding $500 or both.