Minnesota is implementing a biodiesel standard  on May 1, 2018 that requires No. 2 diesel fuel sold for use in combustion engines to contain a minimum of 20% biodiesel.

The mandate marks the states move to B20, which is a blend of 20% biodiesel and 80% petroleum diesel, according to the Minnesota Soybean Research and Promotion Council. 

The previous B5 and B10 mandates, which required a blend 5% and 10% biodiesel fuel, respectively, added added 63 cents to the price of each bushel of soybeans sold by growers, according to Minnesota Farm Guide.

The No. 2 biodiesel blend of fuel will be mandated until Sept. 30, 2018, accordng to the Minnesota Department of Agriculture.Each subsequent year, starting in 2019, all No. 2 diesel fuel must contain a minimum of 20% biodiesel from April 1 through September 30. From October 1 to March 31, the minimum biodiesel requirement for No. 2 is 5%.