| | Evaluating Vehicle Emissions Inspection and Maintenance Programs by National Research Council, Transportation Research Board, Division On Earth, Life Studies, Maintenance Programs Paperback, 260 Pages, Published 2001 by National Academies Press ISBN-13: 978-0-309-07446-9, ISBN: 0-309-07446-0
"Emissions inspection and maintenance (I/M) programs subject vehicles to periodic inspections of their emission control systems. Despite widespread use of these programs in air-quality management, policy makers and the public have found a number of problems associated with them. Prominent among these issues is the perception that emissions benefits and other impacts of I/M programs have not been evaluated adequately. Evaluating Vehicle E ..."
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