Md. Code Ann., Alc. Bev. & Cannabis § 13-2704
In addition to the prohibitions listed in § 6-322 of this article, an individual may not possess in an open container an alcoholic beverage while on a motorcycle located in the places listed in § 6-322, unless authorized.
Added by Acts 2016, c. 41, § 2, eff. July 1, 2016.