Senators Chuck Grassley and Joni Ernst of Iowa, along with Amy Klobuchar of Minnesota and Tammy Duckworth of Illinois, sent a letter to the Environmental Protection Agency on blending waivers. They’re asking the EPA to reject petitions for Small Refinery Exemptions (SREs) under the Renewable Fuels Standard for past compliance years. In the letter, the senators warn that by granting any or all of the petitions, the agency would only worsen the economic challenges facing the biofuels industry. They also want the EPA to apply the Tenth Circuit Court decision nationally. “We urge you to reject these petitions outright and respond in writing to our questions about recent use of SREs under the RFS,” the senators say in the letter. “These petitions should not even be looked at because they are inconsistent with the Tenth Circuit Decision, Congressional intent, as well as the EPA’s own guidance.” Most importantly, they say it goes against the best interests of farmers and rural communities who rely on the biofuel industry. “The approval of the SREs for past compliance years will only worsen the already unprecedented challenges facing the biofuels industry and the rural communities that it supports,” the Senators added.