After a hearing and before a Board decision has been issued, any party may file a motion for post-hearing supplementation of the record to submit additional, newly discovered evidence on material issues. If such motion is granted, all other parties are entitled to at least one response to the new evidence as may be ordered by the Board, with the record to be closed on a date set by the Board order allowing supplementation of the record. All evidence submitted contrary to Board order shall be returned.
211-2 Wyo. Code R. § 2-33