| EPA completes
amendments to new rules for diesel engines March 27 -- The U.S. Environmental Protection Agency has finalized minor amendments to new rules for diesel engines in passenger cars and light trucks, making it easier for manufacturers to comply with tougher emission standards during a transition period. The two voluntary compliance options signed by EPA Administrator Stephen Johnson March 21 would apply to nitrogen oxide requirements for diesels during compliance testing at high altitudes and high speed and acceleration conditions. The voluntary options also would remain in place for only three model years -- 2007 through 2009. Manufacturers exercising the options would need to meet more stringent requirements in other aspects of the Tier 2 Vehicle and Gasoline Sulfur emissions program. The result would be a neutral impact on the environment, according to the EPA. Details are online at www.epa.gov/tier2/amendments.htm .
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