Controlling pollution from mobile sources is vital to improving the quality of our air and protecting public health. The Clean Air Act of 1990 empowered the U.S. Evironmental Protection Agency (EPA) to take a variety of actions that have achieved significant results. For example, EPA reduced the sulphur in gasoline and diesel fuels and established successively more stringent emission standards, both of which brough about cleaner and better performing vehicles and engines.
Several programs have resulted in substancial emission reductions and health benefits. In fact, the emission reductions resulting from the clean fuel and vehicle standards finalized over the past several years will prevent more than 24,000 premature deaths, 19,000 hospitalizations and 3.2 million work days lost. When fully implemented in 2030, the annual bet benefits of these programs will be approximately $175 billion as compared with $11 billion in costs.