California Code, Labor Code - LAB § 2692

The basic costs of the arbitration proceeding, including interpreters requested by the panel, shall be borne equally by all parties to the proceeding, provided, however, that the panel may as a part of its award impose all such costs on the party requesting arbitration if a majority of the panel determines that the matter brought before it was frivolous.  In addition, in the case of a frivolous claim the panel may impose upon the party requesting arbitration the costs of translators, court reporters, and reasonable attorneys fees incurred by the other party.