The Clean Air Act amendments of 1990 require all states, including Ohio, to clean up their air. The amendments define the national standards for air quality. If any area in the United States does not meet the standard, that state must find a way to improve their air quality!
This map shows what areas in Ohio did not meet the national standard and were required to do auto testing. These areas experienced high levels of unhealthy pollution on a regular basis. They have now met the standard but they must maintain that air quality for a period of 10 years.
E-Check is the cheapest way to clean up the air for Ohioans - it costs thousands of dollars less for each ton of harmful pollutants taken out of the air than other possible means to improve air quality. E-Check makes sure that we cars are being taken care of so that people can breathe in cleaner, healthier air.