When used in this part:

(a) The term person outside this agency, to whom the prohibitions apply, shall include any individual outside the Board or the Authority, labor organization, agency, or other entity, or an agent thereof, and the General Counsel or his representative when prosecuting an unfair labor practice proceeding before the Board pursuant to 22 U.S.C. 4116.

(b) The term ex parte communication means an oral or written communication not on the public record with respect to which reasonable prior notice to all parties is not given, subject however, to the provisions of §§ 1414.5 and 1414.6.