CA Unemp Ins Code Section 1957.5

The department shall make available without charge printed forms for the use of any individual claiming benefits to authorize a counsel or an agent to represent him in any proceedings before the appeals board or its administrative law judges or authorized representatives. If any claimant files an authorization for such representation with the appeals board or its administrative law judges, the appeals board or its administrative law judges shall, upon request by the claimant, serve copies of all notices and transcript pertinent to such proceedings on the claimant and his counsel or agent.