Md. Code, Alcoholic Beverages and Cannabis § 4–1202

(a) A local licensing board may issue a per diem license for the periods and at the fees specified in this subtitle or by the local licensing board.

(b) An application for a per diem license shall be:

(1) on the form that the Executive Director requires; and

(2) signed and sworn to by the applicant.

(c) A per diem license may be issued only if the issuance of a regular license of the same class is authorized.