Okla. Stat. tit. 20, § 1602

Power to Answer. The Supreme Court and the Court of Criminal Appeals may answer a question of law certified to it by a court of the United States, or by an appellate court of another state, or of a federally recognized Indian tribal government, or of Canada, a Canadian province or territory, Mexico, or a Mexican state, if the answer may be determinative of an issue in pending litigation in the certifying court and there is no controlling decision of the Supreme Court or Court of Criminal Appeals, constitutional provision, or statute of this state.