The Board or its designee upon its own motion, or upon motion by a party or other person joined in the proceeding, may order proceedings involving a common question of law or fact to be consolidated for hearing on any or all of the matters at issue in such proceedings.
Ga. Comp. R. & Regs. R. 150-23-.01
O.C.G.A. §§ 43-11-2.1, 43-11-7, 50-13-13.