This is a question we get a lot. No, we do not perform SMOG tests, we perform onsite used vehicle inspections for those who are looking to buy used cars. If you’re looking for SMOG you likely just moved to Oregon from California, welcome! Oregon has their own test, which is much more simple and quite a bit cheaper. You’ll need to find a local DEQ office to take your car to. Although we run the same tests as DEQ, there are no mobile services that can certify your car for the DMV’s requirements. You can find Vehicle Emission Testing Stations throughout Portland.