(a) Every final action granting a petition for modification under this part shall be published in the Federal Register. Every such final action published shall specify the statutory grounds upon which the modification is based and a summary of the facts which warranted the modification.

(b) Every final action or a summary thereof granting a petition for modification under this part shall be posted by the operator on the mine bulletin board at the affected mine and shall remain posted as long as the modification is effective. If a summary of the final action is posted on the mine bulletin board, a copy of the full decision shall be kept at the affected mine office and made available to the miners.