(1) An ALJ or review judge must dispose of a reconsideration request within twenty calendar days from the date a petition for reconsideration is filed, unless the ALJ or review judge serves notice that additional time is required or an extension of time to file a response or reply is granted.

(2) The same ALJ or review judge who entered the decision will dispose of the petition for reconsideration, unless that judge is unavailable.

(3) The ALJ or review judge must prepare and serve on all parties a written order:

(a) Granting the petition and dissolving or modifying the final order;

(b) Granting the petition and setting the matter for further hearing; or

(c) Denying the petition.

(4) If, within twenty calendar days of receipt of the reconsideration request, the ALJ or review judge does not dispose of the petition or serve the parties written notice setting a date by which the ALJ or review judge will act on the petition, the request is deemed denied.

(5) The ALJ or review judge decision on reconsideration is final on the date the written decision is served or the date the request is deemed denied as provided in subsection (4) of this section.

(6) An order denying reconsideration or a notice specifying the date by which there will be action on the petition is not subject to judicial review.