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In 2015, EPA revised the underground storage tank (UST) regulations.

Federal mandates requiring a significant increase in biofuels production and use have spurred an increase in the number of retail facilities storing and dispensing renewable fuels such as ethanol and biodiesel. These fuels have significantly different characteristics than petroleum gasoline and diesel. Thus, UST stakeholders should be aware of the technical and policy issues related to storing and dispensing biofuels, such as ethanol and biodiesel.

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