In any brief permitted in rule 11.9, either party may request that an additional hearing be held before the hearing officer to take additional evidence based on newly discovered evidence. A request for an additional hearing must be supported by affidavit describing in detail the additional evidence sought to be admitted and any reasons why it was not presented at the previous hearing. The Board may grant or deny the request in its discretion.
Wash. R. ELC. ELC 11.11