As used in this part:

(a) Adversary adjudication means an adjudication under 5 U.S.C. 554 in which the position of the United States is represented by counsel or otherwise, but excludes an adjudication for the purpose of establishing or fixing a rate or for the purpose of granting or renewing a license.

(b) Adjudicative officer means the official, without regard to whether the official is designated as an administrative law judge, a hearing officer or examiner, or otherwise, who presided at the adversary adjudication.