States´ gasoline oxygenate waiver rejected
The U.S. Environmental Protection
Agency is rejecting petitions from three states asking the federal
government to waive the use of oxygenates in reformulated gasoline,
the agency said June 2.
The Clean Air Act requires metropolitan
areas with the worst ozone air pollution to use reformulated gasoline
that contains 2 percent oxygen by weight. California, New York
and Connecticut have asked the EPA to waive the oxygen requirement
because their reformulated fuels would burn cleaner without them.
Refiners can use either ethanol or methyl tertiary-butyl as an
oxygenate, but all three states have banned MTBE because of water
Waiving the requirement would
reduce vehicle emissions only slightly in California and actually
could increase carbon dioxide emissions. New York and Connecticut
did not provide the necessary technical data for the EPA to determine
what impact the waiver would have on emissions. To obtain a waiver,
states must prove that the oxygen requirement prevents or interferes
with their attainment of national smog or particulate matter standards
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