(a) Where the hearing is conducted by a hearing examiner who makes an initial decision, if no exceptions thereto are filed within the 20-day period specified in Sec. 81.103, such decision shall become the final decision of the Department, and shall constitute ``final agency action'' within the meaning of 5 U.S.C. 704 (formerly section 10(c) of the Administrative Procedure Act), subject to the provisions of Sec. 81.106.
(b) Where the hearing is conducted by a hearing examiner who makes a recommended decision, or upon the filing of exceptions to a hearing examiner's initial decision, the reviewing authority shall review the recommended or initial decision and shall issue its own decision thereon, which shall become the final decision of the Department, and shall constitute ``final agency action'' within the meaning of 5 U.S.C. 704 (formerly section 10(c) of the Administrative Procedure Act), subject to the provisions of Sec. 81.106.
(c) All final decisions shall be promptly served on all parties, and amici, if any.