Air Quality and Motor Vehicles: An Analysis of Current and Proposed Emission Standards

The extent to which emissions from motor vehicles and the amount of sulfur in commercial gasoline should be regulated has become a controversial issue. The EPA is proposing national limits on gasoline sulfur levels which would become effective in 2004. This report provides background information on the regulation of vehicle emissions in the United States, analyzes key elements of the National Low Emission Vehicle (LEV) program and the Environmental Protection Agency's (EPA) Tier 2 proposal, summarizes major views on the proposal that have been expressed by the automobile industry, the oil refining industry, and some environmental organizations, and discusses relevant legislative activity in the 106th Congress