The Environmental Protection Agency issued two proposed rules January 31 impacting the Renewable Fuels Standard. The first establishes required volume obligations of biofuels for 2013 that refiners must blend with gasoline under the standard. Refiners will be required to blend 16.55 billion gallons of renewable fuels, including 14 million gallons of cellulosic ethanol, into the country’s gasoline supply in 2013. The second creates a voluntary quality assurance program for verifying the validity of renewable identification numbers under the program, following the discovery of fraudulent biodiesel credits last year. The proposed rule would establish qualifications for third-party auditors who would determine the validity of the RINs and would establish audit procedures for renewable fuel production facilities as well as reporting requirements.