(a) The commission, or its designated representative, shall appoint and fix the compensation of such additional experts, engineers, geologists, inspectors, investigators, hearing officers, attorneys, clerks, reporters and other employes as may be necessary for the proper conduct of the work of the commission.

(b) Except as otherwise specifically provided in this act, the commission and its employes shall be subject to all the provisions of “The Administrative Code of 1929,”¹ which apply generally to administrative departments and offices.