An appellant shall combine a Reply Brief, if any is filed, with an Answer Brief to a Brief-in-chief on a counter or cross-appeal against the appellant, and such combined brief shall be filed within thirty (30) days after the filing of the Brief-in-chief on the counter or cross-appeal. Any other party against whom a counter or cross-appeal has been filed shall file an Answer Brief within thirty (30) days after the filing of the Brief-in-chief on such counter or cross-appeal.
A counter or cross-appellant may file a Reply Brief to the Answer Brief on the counter or cross-appeal within twenty (20) days after the filing of the Answer Brief on the counter or cross-appeal.
Although, strictly speaking, not all of the proceedings listed here under the collective label of "juvenile appeals" are properly includable under that rubric, we group them together, as a matter of convenience, solely for the purpose of applying to them the same rules. See also Okla.Sup.Ct.R. 1.23(d), 1.28(b)(3) & (k), and 1.34(e).
Okla. Stat. tit. 12, app 1 R. 1.10