Section 11.22 Personal Appearances and Representation by Agent

          In any proceeding before the Administrative Law Judge or Board, each party may appear personally or by an attorney, or by a representative designated in writing by the party, other than an attorney. Each party, attorney, other representative of a party, and witness appearing at the hearing shall file a written notice of appearance and oath with the Administrative Law Judge, which notice and oath shall become part of the record. No exception to the rule (11.17) against basing any Finding of Fact solely on hearsay evidence inadmissible under the California Evidence Code will be made on account of the absence of a party.