Section 1803 Of Article 5. Intervenor’s Fees And Expenses From California Public Utilities Code >> Division 1. >> Part 1. >> Chapter 9. >> Article 5.

. The commission shall award reasonable advocate's fees, reasonable expert witness fees, and other reasonable costs of preparation for and participation in a hearing or proceeding to any customer who complies with Section 1804 and satisfies both of the following requirements:
  (a) The customer's presentation makes a substantial contribution to the adoption, in whole or in part, of the commission's order or decision.
  (b) Participation or intervention without an award of fees or costs imposes a significant financial hardship.