WEVTU reported May 15, 1999 (p.7) that, based on data then available, the U.S. Environmental Protection Agency's (EPA) claimed reduction in fleet emissions from its I/M emissions test program would have to be severely reduced. Sources close to the data analysis aspect of a new I/M effectiveness study now nearing completion indicate that the real gain from testing in-use vehicles is only 10% to 15% of the tons/day reduction claimed by the EPA for the IM-240 program. And this drastic ...

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