Washington, DC [RenewableEnergyAccess.com] Executive Vice President Charles T. Drevna of the National Petrochemical & Refiners Association (NPRA) commented on the Environmental Protection Agency’s (EPA) rules to implement the renewable fuels standard (RFS).“NPRA believes that the RFS credit trading program — the core of the program — must be understandable, allow unambiguous enforcement, and promote adequate flexibility for refiners and gasoline importers,” said Drevna, who congratulated EPA for its facilitation of early engagement, cooperative efforts, and open discussion involving all stakeholders. NPRA, a national trade association with more than 450 member companies, including virtually all U.S. refiners and petrochemical manufacturers, supported EPA’s proposal last year and has issued a framework to implement the RFS provisions in the Energy Policy Act of 2005. The association has advocated that new state renewable mandates should be preempted and new state biofuel mandates should be subject to the requirement that they be examined by EPA for their impact on either the fuel production or distribution system. “Congress did not anticipate the proliferation of new state ethanol and biodiesel mandates when it passed the Energy Policy Act of 2005. Neither Congress nor the Administration should take a pass on considering the potentially serious impacts of politically popular, but economically and environmentally questionable, state ethanol or biodiesel mandates,” Drevna said.