California Advice Letters
The California Advice Letters are used to document tariff changes filed with and approved by the California Public Utilities Commission (CPUC).
Mobilehome Park Utility Upgrade Program
Mobilehome park or manufactured housing community owners in Southwest Gas Corporation’s service territories may be eligible to participate in the Mobilehome Park Utility Upgrade Program (Program). Click the link below to learn more about the program.
Natural Gas Leakage Abatement Annual Report
In accordance with Senate Bill 1371 (Leno, 2014) and CPUC Rulemaking 15-01-008, Southwest Gas Corporation, along with other natural gas utilities in California, is required to submit an annual report on its prior year methane emissions. The 2017 Annual Report may be found at the following link:
California Master-Meter Bill Calculation Tools
Rates were updated January 1, 2016, based on a California Public Utilities Commission Order. For a current bill calculation tool, please send a request to the following e-mail address: RRA@swgas.com
Request Other Rates and Tariff Information
Use the link below to request historical Rates and Tariff information not available on this website. This form may also be used as a request to be placed on Southwest Gas' California Advice Letter Service List. Should you have any questions regarding your bill, please contact Customer Assistance at 877-860-6020.
Download the Entire California Gas Tariff
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Other Regulatory Information
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Learn How Gas Rates Are Set
The rates used by Southwest Gas are set by state regulatory commissions using a process called the "rate case cycle." Because of individual state regulations, the rate case cycle differs slightly for each state. See how rates are set for your state.
Request Rates & Tariff Information
Use this form to request historical Rates and Tariff information not available on this website. This form may also be used as a request to be placed on Southwest Gas' California Advice Letter Service List. If you have any questions regarding your bill, please contact Customer Assistance at
877-860-6020.
Commission Websites
Check your state's Commission Office for more information about rates and regulations.
