This page contains news and, when available, background information, on IM240:. Links on this site lead to other sites on the web.
IM240: - A high-tech, transient dynamometer automobile emissions test that takes up to 240 seconds. [Environmental Protection Agency]
News archive for IM240::
Rules of the Road: Understanding Emissions Laws - Nov 30, 2007 Jalopnik,This test is referred to as an IM240 because they run your car for approximately 240 seconds to simulate a short drive with an average speed of 29.4 mph and
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