California Public Utilities Commission Practitioner’s Page

Practice before the Commission is governed by the Public Utilities Code, the Commission’s Rules of Practice and Procedure, specific Commission orders, and customs and practices developed over time to facilitate the efficient resolution of procedural matters that come up in the course of a proceeding. This page is designed to put useful information for both new and veteran practitioners in one place for easy access. If you find information here that you believe to be out of date or think of a topic on which a FAQ or Custom and Practice sheet would be helpful, please contact We value your feedback.


PRACTITIONER ALERT: E-Filing System will be Down over the Martin Luther King Holiday Weekend from January 15-19, 2021

Attention All Practitioners:

To perform some scheduled system updates, the Commission’s E-filing system is expected to be down over the Martin Luther King weekend, from 6 p.m. on January 15 up to and including 6 a.m. on January 19, 2021.

If you have any questions, please contact for guidance.


PRACTITIONER ALERT: COVID-19 Temporary Filing and Service Protocol 

Immigration Guide