CA Lab Code Section 5272

Arbitrators shall have all of the statutory and regulatory duties and responsibilities of a workers’ compensation judge, as set forth in Chapter 1 (commencing with Section 5300) of Part 4, except for the following:

(a)

Arbitrators shall have no power to order the injured worker to be examined by a qualified medical evaluator pursuant to Sections 5701 and 5703.5.

(b)

Arbitrators shall not have power of contempt.