(a) Notwithstanding the provisions in part 2 of this chapter concerning appeals generally from administrative actions, any appeal from the action of the superintendent of approving or disapproving a will shall be taken to the Secretary. Upon the superintendent's final action of approval or disapproval of a will, he shall immediately notify by mail all attorneys appearing in the case, together with interested parties who are not represented by attorneys, of his decision and of their right to file an appeal.

(b) Any party desiring to appeal from the action of the superintendent shall, within 15 days after the date of the mailing of notice of the decision file with the superintendent a notice in writing of his intention to appeal to the Secretary, and shall, within 30 days after the mailing date of such notice by the superintendent, perfect his appeal to the Secretary by service of the appeal upon the superintendent who will transmit the entire record to the Secretary. If no notice of intention to appeal is given within 15 days, the superintendent's decision will be final.

(c) Upon the filing of notice with the superintendent of intention to appeal or the perfecting of an appeal by service upon the superintendent, at the same time similar notice and service shall be effected by the party taking an appeal upon opposing counsel or litigants, and a statement included in the appeal that this has been done. A party taking an appeal may, within the same 30-day period allowed for perfecting an appeal, file a brief or other written statement of his contentions, showing also service of that brief upon opposing counsel or litigants. Opposing counsel or litigants shall have 30 days from the date of the service of appellant's brief upon them in which to file an answer brief, copies of which also shall be served upon the appellant or opposing counsel and litigants. Except by special permission, no other briefs will be allowed on appeal.