After the close of the hearing record, but prior to the entry of a Decision, a party may move for an order allowing the introduction of additional evidence on the basis that such evidence is newly discovered and was not discoverable in the exercise of reasonable diligence at the time of the hearing. If the Court determines that the evidence is newly discovered, and that it may materially impact the case, the Court shall hear and receive such evidence in the manner prescribed for the receipt of evidence by these Rules.
Ga. Comp. R. & Regs. R. 616-1-2-.25
O.C.G.A. §§ 50-13-13(a)(6); 50-13-40(c).