Definitions shall be the same as in subpart A of this part except as follows:
(a) Party means for the purposes of this subpart:
(1) The Director or his representative; or
(b) Presiding officer means, for the purposes of this subpart, an administrative law judge of the Office of Hearings and Appeals appointed in accordance with 5 U.S.C. 3105.
(c) Witness means, for the purposes of this subpart, any person who provides direct testimony on the proposed regulations and waiver. A person may be both a party and a witness.