Rates & Regulation

Learn How Gas Rates Are Set

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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

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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

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Check your state's Commission Office for more information about rates and regulations.
 
 
 
 

NOTES ABOUT VIEWING THE TARIFFS:

Tariff Schedules are provided as PDF (Portable Document Format) files. The Adobe® Acrobat® Reader plug-in (version 6.0 or higher) is needed to view the documents and can be downloaded for free. Versions are available for most platforms.