EPA regulates underground storage tanks to protect human health and the environment from petroleum releases. Because of EPA’s recent approval of sales of E15 gasoline year-round, more people might choose to offer E15 at gas stations and other fueling facilities. If you are now, or thinking of in the future, storing E15 in a federally regulated underground storage tank, you must prove that your equipment is compatible. These requirements apply if you are storing any regulated substances that contain more than 10 percent ethanol or more than 20 percent biodiesel.

Click on the following link for EPA’s Compliance Advisory Publication.