Okla. Stat. tit. 59 § 1470
When there is a cause to refuse an application or to suspend or revoke the license of any polygraph examiner, the Council shall, not less than thirty (30) days before refusal, suspension or revocation action is taken, notify such person in writing, in person or by certified mail at the last address supplied to the Council by such person, of such impending refusal, suspension or revocation, the reasons therefor and of his right to an administrative hearing for the purpose of determining whether or not the evidence is sufficient to warrant the refusal, suspension or revocation action proposed to be taken by the Board. If, within twenty (20) days after the personal service of such notice or such notice has been deposited in the United States mail, such person has not made a written request to the Board for this administrative hearing, the Board is authorized to suspend or revoke the polygraph examiner's license of such person without a hearing. Upon receipt by the Council of such written request of such person within the twenty-day period as set out above, an opportunity for an administrative hearing shall be afforded as early as is practicable. In no case shall the hearing be held less than ten (10) days after written notification thereof, accompanied by a copy of the charges, shall have been given the person by personal service or by certified mail sent to the last address supplied to the Council by the applicant or licensee. The administrative hearing in such cases shall be before the Board.
Okla. Stat. tit. 59, § 1470