Section Box 206.30 - Close of the Record(a) After the conclusion of the hearing, no other evidence or argument shall be allowed into the record, except as allowed pursuant to (b), below.(b) Prior to the conclusion of the hearing a party may request that the record be left open for a specified period of time in which to file evidence or arguments not available at the hearing. If the commission determines that such evidence or arguments is necessary to a full consideration of the issues raised in the appeal, and the party was not at fault for failing to submit the evidence or arguments, and there is a likelihood that a different result would occur, the presiding officer shall set a date by which the additional material shall be filed.(c) The party filing such additional material shall also deliver or send copies of all items filed to all other parties of record.N.H. Admin. Code § Box 206.30