Salt Lake County Health DepartmentGeneral Information Salt Lake County, UT 385-468-4100
Before you may register a motor vehicle (either gasoline or diesel-powered) for operation in Salt Lake County, it must pass an emissions test.
Independent testing facilities located throughout Salt Lake County perform the emissions testing. The Vehicle Emissions Program licenses and regulates the facilities.
A malfunctioning vehicle can emit one hundred times the amount of pollution that it would if it were working properly.
Every day, the program keeps tons of pollutants out of the Salt Lake Valley’s air:
Emissions Stations in SLCo
Report a Smoking Vehicle
Motor vehicles are responsible for more than 70% of the air pollution that affects our health. When a vehicle is operating properly, its emissions levels are very low. However, a malfunctioning vehicle can emit one hundred times the amount of pollution that it would if it were working properly. Properly tuned and well-maintained vehicles also provide better performance and fuel economy for the owner.
You cannot register a failing vehicle in Salt Lake County until it is properly repaired, retested, and passes the test.
In very rare cases, vehicle owners have made repairs toward the major cause of the high emissions and those repairs have failed to reduce the pollution levels to below the standard. In some of those cases, SLCoHD may issue a repair waiver to allow a failing vehicle to be registered for that year.
Waivers are handled on a case-by-case basis and may or may not be granted. A waiver is a last resort. The vehicle must be inspected by a SLCoHD vehicle emissions technician to review all test data and repair information, and to verify the ineffective repairs.
Contact the Air Quality Bureau for more information about waivers.
Depending on the age and overall condition of a vehicle failing the emissions test, low-income vehicle owners may qualify for vehicle repair assistance. We require a completed application and supporting documentation.
Note that permits are not transferable; when a change of ownership occurs at a permitted facility, the new owner must apply for a new permit and pay all applicable fees.
Emissions Stations in good standing with SLCoHD may apply to become a Vehicle Repair Assistance Program (VRAP) repair station. For more information,
contact the Air Quality Bureau.