Emissions test in Missouri may soon go up in smoke.

You must have a safety inspection even if you are exempt from emissions inspections.The vehicle's first 10 model years or 150,000 miles are not required for a safety inspection.Vehicles are not necessary when historic plates are first registered.

Does my car need an emissions test?Depending on the vehicle's year and weight, emissions test frequencies can vary from 1 to 2 years.Light duty vehicles of 1981 and newer need to emit emissions every 2 years.If your vehicle is due, check the registration renewal notice.

Jefferson and Franklin counties are in compliance with the EPA's 2008 ozone standards, while Boles Township in eastern Franklin County is not.Emissions testing is required in the St. Louis region because of high ozone levels.

Drive Clean emissions tests for passenger vehicles will no longer be required on April 1, 2019.Since the program was created in 1999, the auto industry standards have improved so Drive Clean is no longer necessary.