Cal. Pub. Util. Code § 12166

The committee shall examine into the case and make such decision as it deems just and may among other things order the employee discharged, suspended, or reinstated. Its order or decision shall be final unless the employee within 10 days after the date of the order requests the general manager to review the order, in which event the general manager may require any additional evidence he deems material, and his order or decision, with or without such additional evidence, shall be final.