Maryland Code, State Finance and Procurement § 7-222

Unless a person and the Comptroller or any duly authorized agent or representative designated by the Comptroller have entered into an agreement for the payment of the person's indebtedness to the State and the payments are current or unless, for good cause shown, the Board of Public Works grants a waiver, the Comptroller, the Chief Deputy Comptroller, or a deputy comptroller may not issue to a person a warrant for payment of a claim due to the person in the person's own right, if the person owes $50 or more to the State, a unit of the State government, or any governmental entity under the control of the State.