Hearing Notice. Public notice shall be given and written notice shall be given to the applicant, the Zoning Officer, such other persons as the Supervisors shall designate by ordinance and to any person who has made timely request for public notice. Written notices shall be given at such time and in such manner as shall be prescribed by ordinance or, in the absence of ordinance provision, by rules of the Board. In addition, written notice shall be conspicuously posted on the affected tract of land at least one week prior to the hearing. The hearings shall be conducted by the Board or the Board may appoint any member as a hearing officer. The decision, or, where no decision is called for, the findings shall be made by the Board; however, the appellant or the applicant, as the case may be, in addition to the Township, may, prior to the decision of the hearing, waive decision or findings by the Board and accept the decision or findings of the hearing officer as final.