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Vehicle Emissions Testing to End January 14, 2022

The Tennessee Department of Environment and Conservation (TDEC) announced August 17, 2021 that emissions testing in several Tennessee counties will end on January 14, 2022 now that the Environmental Protection Agency (EPA) has approved a revision to the state’s air quality plan.

EPA’s final rule, which was published in the federal register on August 17, 2021, means vehicle testing will end in January of 2022 in five Tennessee counties – Hamilton, Sumner, Rutherford, Wilson, and Williamson. Specifically, January 13, 2022 will be the last day vehicle emissions testing is required for vehicle registration renewals in these counties.

Metropolitan Nashville/Davidson County has chosen to continue its testing program. Given the end-of-month requirement for vehicle testing and registration, vehicle registration renewals for the month of January 2022 will not require testing after January 13.