The Board shall schedule and hold a public hearing on an appeal no later than 30 days from the filing of the complete administrative record, or at such time as may be mutually agreed upon by the Board and the appellant. In no case shall the hearing be scheduled beyond 180 days of the receipt of the complete administrative record without the concurrence of the Board, the appellant, and the project proponent (when not the same person as the appellant). The hearing may be scheduled as part of a regular business meeting of the Board or may be conducted by a committee of the Board.