In order to obtain reimbursement for moving and travel expenses, eligible employees shall file for such reimbursement, through their departments or agencies, with the Department of Audit and Control on forms prescribed by the State Comptroller. Such forms shall be accompanied by a receipted copy of the bill of lading or freight bill issued by the carrier showing the charges collected; copies of the three competitive bids in the event that a certified carrier is not used; a signed copy of the agreement executed by the employee pursuant to subdivision 3 of section 6-b of the State Finance Law, which provides for the repayment to the State for monies advanced if the employee voluntarily separates from his position.