Md. Code, Business Regulation § 16–220

(a) The Executive Director shall seal a vending machine to prevent the sale or removal of cigarettes from the machine if:

(1) a tax stamp is not visible on each visible package of cigarettes in the machine, as required by § 16–209(b)(1) of this subtitle; or

(2) the machine is not labeled as required by § 16–209(b)(2) of this subtitle.

(b) If the violation for which a vending machine is sealed has been corrected in the presence of the Executive Director or the Executive Director’s designee, the Executive Director shall remove the seal.