(a) Any party aggrieved by the final order of the administrative judge may, within thirty (30) days after the date of mailing such decision, file with the administrative judge a written petition for reconsideration and/or rehearing. Such petition must be under oath and must state specifically and concisely the grounds upon which it is based. If it is based upon newly discovered evidence, it shall be accompanied by affidavits of witnesses stating fully what the new evidence or testimony is to be. It shall also state justifiable reasons for the prior failure to discover and present the evidence.

(b) If proper grounds are not shown, or if the petition is not filed within the time prescribed in paragraph (a) of this section, the administrative judge shall issue an order denying the petition and shall set forth therein the reasons therefor. The administrative judge shall serve copies of such order on all parties in interest.

(c) If the petition appears to show merit, or if the administrative judge becomes aware of sufficient additional evidence to justify correction of error even without the filing of a petition, or upon remand from the Board following an appeal resulting in vacating the final order, the administrative judge shall cause copies of the petition, supporting papers, and other data, or in the event of no petition an order to show cause or decision of the Board vacating the final order in appropriate cases, to be served on all parties in interest. The parties in interest will be allowed a reasonable, specified time within which to submit answers or legal briefs in opposition to the petition or order to show cause or Board decision. The administrative judge shall then reconsider, with or without hearing, the issues of fact and shall issue a final order upon reconsideration, affirming, modifying, or vacating the original final order and making such further orders as are deemed warranted. The final order upon reconsideration shall be served on all parties in interest and shall become final thirty (30) days from the date on which it is mailed.

(d) Successive petitions for reconsideration and/or rehearing shall not be permitted. Nothing herein shall be considered as a bar to the remand of a case by the Board for further reconsideration, hearing, or rehearing after appeal.