Mobile Emissions Testing
in Davis County

Emissions Testing That Comes to You in Davis County

On Demand Emissions brings certified emissions testing to your driveway or office parking lot anywhere in Davis County, from Bountiful and Woods Cross in the south to Layton, Syracuse, and West Point in the north. A technician connects to your vehicle's OBD-II port, the test takes about 15 minutes, and the results go straight to the Utah DMV. You never sit in a testing station line, and you can renew your registration online the moment you pass.

Davis County Tests Older Vehicles Every Year

Davis County runs a stricter schedule than some of its neighbors. Once a vehicle is six model years old, it needs an emissions test every year before you can renew its registration. In 2026 that means every vehicle from model year 1996 through 2020. Newer vehicles test every other year: even model years in even calendar years and odd model years in odd years, and the first two model years are exempt. Vehicles from 1995 and older are no longer tested.

Because older vehicles come due every single year, a test that comes to you saves Davis drivers a trip and a wait every year, not just occasionally. See our Davis County emissions guide for the full rules, waivers included, or the county-by-county comparison for how Davis stacks up against the rest of Utah.