California Code, Public Utilities Code - PUC § 373

(a) Electrical corporations may apply to the commission for an order determining that the costs identified in Sections 367, 368, 375, and 376 not be collected from a particular class of customer or category of electricity consumption.

(b) Subject to the fire wall specified in subdivision (e) of Section 367, the provisions of this section and Sections 372 and 374 shall apply in the event the commission authorizes a nonbypassable charge prior to the implementation of an Independent System Operator and Power Exchange referred to in subdivision (a) of Section 365.