The U.S. Environmental Protection Agency (EPA) today denied requests from several governors and the livestock industry to waive the Renewable Fuel Standard (RFS). EPA received more than 30,000 comments on the waiver request. WPI predicted that EPA would deny the waiver based on the structure of the Agency's request for comments, which evaluated the following: (a)  Whether compliance with the RFS would severely harm the economy of Arkansas, North Carolina, other states, a region, or the United States;(b)  whether the relief requested will remedy the harm;(c)  to what extent, if any, a waiver would change demand for ethanol and affect prices of corn, other feedstocks, feed, and food;(d)  the amount of ethanol that is li...