Any party aggrieved by an administrative judge's order has fourteen days from the filing date of the order to appeal it. If the parties have not opted out of the impartial examination (452 CMR § 1.11 (6-8)), each appellant must pay a $650 fee. This fee must either be sent with the appeal, or sent to the department within ten days of filing the appeal. Only a check for $450 payable to the "Commonwealth of Massachusetts" will suffice. Partial payments will be returned and the appeal will not be perfected. 450 CMR § 1.11 (1)(a).