Any defendant who fails to appear as directed, after first having received proper notice, shall be deemed by the Board to have waived his or her right to present a defense to the charges alleged in the complaint, and the Board may deem the allegation of the complaint and citation to be true and correct as alleged. There upon, the Board may vote to take disciplinary action upon the allegations of the complaint and citation, as appropriate for the nature of the allegations.
Okla. Admin. Code § 435:3-3-14