The EFEE Motor Vehicle Emissiosn Fee Model

摘要

Despite unparalleled reductions in certification emission levels, on-road motor vehicles continue to be identified as a significnat contributor to the inability of U.S. metropolitan areas to achieve compliance with the National Ambient Air Quality Standard for ozone. In-use deterioration of emissions performance over time and the continued use of older, higher emissting vehicles represent major influences on total motor vehicle emissions, influences which cannot be controlled through the continued tightening of new vehicle emission standards. Whiel motor vehicle emissions inspection and maintenance (I/M) programs attempt to control in-use vehicle emissions, the effectiveness of current programs is limited both by design and public acceptance. The stringency of emissions inspection standards commonly varies in accordance with associated certification standards and includes a substnatial margin of safety to accommodate relatively unsophisticated test methods. Because of these limitations, typical I/M program designs have little influence on fleet turnover and provide vehicle owners with no incerntive to exceed minimum program requirements.