The US Court of Appeals for the 10th Circuit last week vacated three small refinery exemptions from biofuel blending requirements on grounds that the Environmental Protection Agency exceeded its authority in granting the waivers. The waivers in question were issued to Holly Frontier's Woods Cross and Cheyenne refineries, as well as CVR Energy's Wynewood refinery.
Court invalidates 3 small refinery biofuel waivers
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