Md. Code, State Finance and Procurement § 7–219

(a) The Comptroller, the Chief Deputy Comptroller, or a deputy comptroller may not sign a blank warrant.

(b) A warrant for payment of a bill is not valid unless the following information appears on the face of the warrant:

(1) the amount of the warrant;

(2) the date of issue;

(3) a reference to the document that identifies:

(i) the payee; and

(ii) the officer or unit of the State government that submitted the bill; and

(4) the certification of the Comptroller, the Chief Deputy Comptroller, or a deputy comptroller that:

(i) the amount of the warrant is correct; and

(ii) the officer or unit submitted the bill for which the warrant is issued.

(c) A warrant for an advance of money to an officer or unit of the State government is not valid unless the following information appears on the face of the warrant:

(1) the amount of the warrant;

(2) the date of issue;

(3) the identity of the officer or unit; and

(4) the certification of the Comptroller, the Chief Deputy Comptroller, or a deputy comptroller that the amount of the warrant is correct.