This letter comprises the comments of the Pacific Gas and Electric Company (PG&E), Southern California Gas Company (SCGC), San Diego Gas and Electric (SDG&E), and Southern California Edison (SCE) in response to the U.S. Department of Energy’s (DOE) Request for Information on Regulatory Burden. The signatories of this letter, collectively referred to herein as the California Investor Owned Utilities (CA IOUs) represent some of the largest utility companies in the Western United States, serving over 35 million customers.