Maryland Statutes
Subtitle 14 - Applications for Licenses
Section 24-1407 - Terms of Licenses

(a)    (1)    A license shall be issued for 6 or 12 months.
        (2)    The term of a license begins on May 1.
    (b)    If a license is not claimed by the applicant within 30 days after issue or renewal, the license is void.
    (c)    When a 6–month license is issued, only one–half of the annual fee shall be charged.