At any time prior to the issuance of the decision on the merits, the presiding officer, on the presiding officer's own initiative or on the motion of any party, shall reopen the record to receive relevant, material and non-duplicative testimony, evidence or arguments not previously received, if the presiding officer determines that such testimony, evidence or arguments are necessary to a full and fair consideration of the issues to be decided.
N.H. Admin. Code § Res 213.03
#7568-A, eff 10-1-01