(a) The decisions of a panel of the court and of the court sitting en banc shall be final and not subject to further appeal, except by petition for review or by other exercise of discretionary review by the Supreme Court.
(b) In any case pending before the court of appeals, the Supreme Court may in its discretion, on motion of any party to the case, on request by the court of appeals, or on its own motion, certify the case for review by the Supreme Court before it has been determined by the court of appeals. Certification is appropriate where the case involves an issue of significant public interest or a legal principle of major importance, or in other cases the court considers appropriate. The effect of the certification shall be to transfer jurisdiction over the case to the Supreme Court for all purposes.