Rules on Civil Procedure
Section 1. Filing of petition with Supreme Court. - A party desiring to appeal by certiorari from a judgment or final order or resolution of the Court of Appeals, the Sandiganbayan, the Regional Trial Court or other courts whenever authorized by law, may file with the Supreme Court a verified petition for review on certiorari. The petition shall raise only questions of law which must be distinctly set forth. (1a, 2a)