On-road Vehicles and Engines: Emissions, Transportation, Alternative Choices, and Fuel Issues

This Web page and the related pages links on the right sidebar provide information on controlling emissions from passenger cars and light trucks. This includes consumer information, vehicle standards and regulations, certification and compliance, fuel economy, and test data, CAP 2000 (compliance assurance program) regs and related documents, CFEIS (certification and fuel information system) green vehicle guide, auto emissions and ozone tips to improve gas mileage.