Okla. Stat. tit. 40, § 3-403
Within thirty (30) days after the date of mailing of the order, ruling, or finding complained of, the party desiring to appeal shall file in the office of the clerk of the district court of the county that has the proper jurisdiction, a petition for review specifying the grounds upon which such appeal is based. The appealing party shall serve a file-stamped copy of the Petition for Review on the opposing party or its attorney and the designated hearing officer of the Commission before whom the original hearing was held. The hearing officer of the Commission shall then cause a certified transcript of the healing to be made which shall consist of all testimony of the parties, all documentary evidence and other evidence introduced at the hearing, and all decisions, judgments, or orders rendered as a result of the hearing. The hearing officer shall then cause the certified transcript to be filed in the appropriate district court within sixty (60) days of receipt of the Petition for Review. Copies of the transcript shall be mailed by the hearing officer to the Commission's attorney and the employer or the employer's attorney.
Laws 1980, SB 637, c. 323, § 3-403, emerg. eff. July 1, 1980; Amended by Laws 1998, HB 2792, c. 161, § 12, emerg. eff. July 1, 1998 (superseded document available).