Appellate Authority orders may confirm or modify advance rulings after a hearing, with certified copies issued to parties. The Appellate Authority may, after giving parties an opportunity of being heard, pass an order confirming or modifying the advance ruling and must do so within ninety days of filing; if members differ on any question, no advance ruling can be issued, and the Authority must send a duly signed certified copy of the pronouncement to the applicant, the concerned officer, the jurisdictional officer and the Authority.