Maryland Public Safety Section 5-310

      (a)      The Secretary may revoke a permit on a finding that the holder:

            (1)      does not meet the qualifications described in § 5-306 of this subtitle; or

            (2)      violated § 5-308 of this subtitle.

      (b)      A holder of a permit that is revoked by the Secretary shall return the permit to the Secretary within 10 days after receipt of written notice of the revocation.