1531.14   APPEAL FROM ORDER OF SUSPENSION OR REVOCATION.
   A registrant whose certificate has been suspended or revoked may appeal such order of suspension or revocation to the Board of Building Appeals and the appellant may be represented by counsel at his own expense. The Board shall permit the appellant and the Building Commissioner to call witnesses and introduce competent testimony pertinent to a hearing on appeal. The appeal shall be made in writing and filed with the secretary of the Board within five days after receipt of the notice or order.