The presiding officer upon his or her own motion, or upon motion by a party or other individual 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. 20-14-.36
O.C.G.A. Secs. 43-3-8, 43-3-20, 43-3-21, 43-3-22, 43-3-23, 43-3-24, 43-3-28.