The record before the board in any adjudicative proceeding shall consist of the decision or order appealed from, the notice of appeal therefrom, responsive pleadings, if any, and notices of appearances, and any other written applications, motions, stipulations or requests duly filed by any party and written reports or orders of the presiding officer. Such record shall also include all depositions, if they are admitted at the hearing, the transcript of testimony as provided in WAC 371-08-525, and other proceedings at the hearing, together with all exhibits admitted. No part of the department's record or other documents shall be made part of the record of the board unless admitted in evidence.