(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.