A bipartisan group of 39 senators is calling on the EPA to produce a strong Renewable Fuel Standard when it releases its final rule setting 2017 blending requirements for ethanol and other biofuels later this year. In a letter to EPA chief Gina McCarthy, the senators, led by Republican Chuck Grassley of Iowa and Democrat Amy Klobuchar of Minnesota, said the final rule should support U.S. jobs, reduce the environmental impact on the transportation and energy sectors and reduce dependence on foreign oil. The lawmakers said that when Congress adopted the RFS in 2005, and expanded it in 2007, “it intended to put in place a stable, forward-looking policy to drive innovation and investments in biorefining capacity and distribution infrastructure to bring biofuels to American consumers.” The policy has spurred the growth of the renewable industry and the development of new types of biofuels, they said. However, the senators said EPA has undermined those gains in recent years by relying on concerns that the distribution infrastructure needed to transport renewable fuels is lacking. As a result, “biofuel investment has fallen and projects are moving overseas,” the senators wrote. The oil industry uses the distribution infrastructure argument in opposition to higher blending levels, but biofuels producers disagree.