12 CFR 1102.25 - Service.
(1) Personal service;
(2) Delivering the papers to a reliable commercial courier service, overnight delivery service, or to the U.S. Post Office for Express Mail delivery; and
(3) Mailing the papers by first class, registered, or certified mail.
(b) Methods; non-appearing party. If a party has not appeared in the proceeding in accordance with § 1102.22 of this subpart, the ASC or any other party shall make service by any of the following methods:
(1) By personal service;
(3) By registered or certified mail addressed to the party's last known address; or
(4) By any other manner reasonably calculated to give actual notice.
(d) By the respondent. All papers filed in a proceeding under this subpart shall be served by a respondent on the Secretary and each party's attorney, or, if any party is not so represented, then upon such party. Such service may be made by any of the appropriate methods specified in paragraphs (a) and (b) of this section.