Maryland Code, Transportation § 12-116

If any person gives a check to the Administration to pay for any charge or for any other purpose and the check is not honored by the bank on which it is drawn, the Administration may impose a service charge to be retained by the Administration for the purpose of recovering check handling costs and shall not be credited to the Gasoline and Motor Vehicle Revenue Account for distribution under § 8-403 or § 8-404 of this article. This service charge shall be equal to the greater of: