Okla. Stat. tit. 56, § 56-237.8: Order of administrative law judge

After evidence has been presented at a hearing, the

administrative law judge shall enter a written order which shall

contain findings of fact and conclusions of law as to each contested

issue. The order shall be submitted to the district office and to

the obligor or the attorney of the obligor by certificate of mailing

within twenty (20) days after the conclusion of the hearing.