(a) A request for reinstatement must be in writing to the State Architect and may be granted upon proof of compliance of all provisions of the decision as to reinstatement or, in the absence of that decision or any provisions therein as to reinstatement, at the sound discretion of the State Architect or his/her designee.

(b) If certification is reinstated prior to certification expiration, no extension of the certification period will be granted, and the certification will expire on the last day of the certification period.

(c) The provisions of section 138(a) are not applicable to a suspended certification that has expired. If reinstatement of eligibility for the Program is granted after certification expiration, the individual may obtain a new certification by meeting the requirements as set forth in article 3, commencing with section 133, except as provided in section 165(d).

(d) If after certification expiration an appellant has had certification reinstated through the appeal process as set forth in section 163(b), the individual is subject to the requirements of section 137 and the three-year certification period is established from the day after the original expiration date of the previous certification period.