The response to comments shall be prepared within ninety (90) days after the close of the public comment period unless extended by the Executive Director upon a determination that additional time is required due to circumstances outside the control of the Department. Such circumstances may include, but shall not be limited to, an act of God, a substantial and unexpected increase in the number of applications filed, additional review duties imposed on the Department from an outside source, or outside review by a federal agency.
If no written administrative hearing request is received by the Department by the end of twenty (20) days after the publication date of the notice, the final permit shall be issued.
Okla. Stat. tit. 27A, § 2-14-304