For residents of Hamilton, Rutherford, Sumner, Williamson, and Wilson Counties, if a vehicle is out of state for more than 90 days prior to the vehicle registration renewal date, apply for an emissions exemption through TDEC. For more information regarding the vehicle exemption click here.
As pf January, 2022, Davidson County is the only county that will require emissions testing. For residents of Davidson County, if a vehicle cannot be taken through an emissions inspection site in Tennessee, the owner must contact the Metropolitan Public Health Department at (615) 340-5657. A representative will explain the necessary steps to satisfy emissions requirements given the specific situation or circumstances.