(a) In this subtitle the following words have the meanings indicated. (b) 'Proper invoice' means an invoice that: (1) contains the contractor’s federal employer’s identification number or Social Security number; (2) contains the contract or purchase order number or other description of the contract; and (3) contains or is accompanied by the substantiating information and documentation required by regulation or contract. (c) 'Receipt date' means the date that a proper invoice is received by the Commission.
Maryland Legal Code