These rules govern formal adversarial adjudications of the United States Department of Labor conducted before a presiding officer.
(a) Which are required by Act of Congress to be determined on the record after opportunity for an administrative agency hearing in accordance with the Administrative Procedure Act, 5 U.S.C. 554, 556 and 557, or
(b) Which by United States Department of Labor regulation are conducted in conformance with the foregoing provisions, to the extent and with the exceptions stated in Sec. 18.1101. Presiding officer, referred to in these rules as the judge, means an Administrative Law Judge, an agency head, or other officer who presides at the reception of evidence at a hearing in such an adjudication.