Petitioner's Brief-in-Chief shall be filed in this court within 20 days from the date the Notice of Completion of Record is filed in the Supreme Court. Respondent's Answer Brief shall be filed within 10 days after the filing of the Brief-in-Chief. Petitioner may file a Reply Brief within 5 days after the filing of the Answer Brief. Parties shall comply with Rule 1.10 when applicable as required by Rule 1.40(c). See e.g., Rule 1.10(a)(3), (5), (6), and (d) and (e). The form of the briefs shall comply with Rule 1.11. See Rule 1.40(c).
Okla. Stat. tit. 12, app 1 R. 1.55