Okla. Admin. Code § 460:20-59-7
(a) Except as provided in (b) and (c) of this Section, a notice of violation or cessation order which requires cessation of mining, expressly or by necessary implication, shall expire within 30 days after it is served unless an informal public hearing has been held within that time. The hearing shall be held at or reasonably close to the mine site so that it may be viewed during the hearing or at any other location acceptable to the Department and the person to whom the notice or order was issued. The Oklahoma Department of Mines Department in Oklahoma City shall be deemed to be reasonably close to the mine site unless a closer location is requested and agreed to by the Department. Expiration of a notice or order shall not affect the Department's right to assess civil penalties with respect to the period during which the notice or order was in effect. No hearing will be required where the condition, practice, or violation in question has been abated or the hearing has been waived. For purposes of this Section only, "mining" includes:
(b) A notice of violation or cessation order shall not expire as provided in (a) of this Section if the informal public hearing has been waived, or if, with the consent of the person to whom the notice or order was issued, the informal public hearing is held later than 30 days after the notice or order was served. For purposes of this subSection:
(1) The informal public hearing will be deemed waived if the person to whom the notice or order was issued:
(c) The Department shall give as much advance notice as is practicable of the time, place, and subject matter of the informal public hearing to:
(f) Within five days after the close of the informal public hearing, the Department shall affirm, modify, or vacate the notice or order in writing. The decision shall be sent to: