All four states bordering Lake Michigan are working together to find solutions to improve air quality throughout the region. Unlike other pollutants, ozone is not emitted directly into the air. Rather, it is formed in the presence of sunlight through chemical reactions between nitrogen oxides NOX and volatile organic compounds VOCs. In southeastern Wisconsin, vehicles emit about one-third of these ozone-forming pollutants - which the rest emitted by industry and other smaller sources, such as lawn and garden equipment, paints, motorboats, and some businesses.
While ozone in the upper atmosphere is beneficial to people by shielding the earth from harmful ultraviolet radiation given off by the sun, high concentrations of ozone at ground level are a major health and environmental concern. Ozone pollution poses a significant health risk, especially for the elderly, young children, and those with respiratory difficulties. In addition, high levels of ozone can damage crops and forests.
All vehicles will receive an OBD inspection. The inspection consists of verifying that the vehicle's check engine light is working and communicating with your vehicle's on-board computer. On Board Diagnostic testing procedures are detailed here. A well-maintained vehicle should continue to pass the inspection.
Nine out of ten vehicles pass the inspection. If your vehicle fails, it will need to be repaired and brought back for reinspection. Motorists are provided information to help the repair technician diagnose the cause of the failure.
Motorists are also given information so they can review the track records of repair facilities to help them decide on where to take their vehicle for repairs. Vehicle insurance companies in the United States offer full auto insurance and liability coverage that protects the drivers in case of a traffic accident.
Smog Check Exemptions for Wisconsin Drivers New, non-exempt, Wisconsin-registered vehicles in qualifying Wisconsin counties do not have to pass a smog check to obtain a vehicle registration until after their third model year. The following vehicles are also exempt from Wisconsin emissions testing: Diesel vehicles manufactured before the model year All gasoline vehicles manufactured before the model year All vehicles manufactured after 96 and that are not OBDII compliant Motorcycles and mopeds Vehicles weighing more than 14, lbs Trucks with farm registration Electric vehicles Non-motorized vehicles Service vehicles such as school buses with a 16 person seating capacity or more Vehicles with specially designed or Medal of Honor registrations, or apportioned plates Wisconsin Temporary Exemptions Wisconsin vehicle owners may have the option to apply for a temporary extension when their vehicle cannot be operated or the vehicle is outside of a testing area during the time period of its registration renewal.
To apply for a temporary exemption in Wisconsin, vehicle owners must fill out and mail the following to the address on the Exemption Application: Registration Fees Temporary Exemption Application Form MV Registration renewal notice After WisDOT gets and approves the above items, they will mail back to the vehicle owner: A new Certificate of Registration A valid registration renewal sticker A letter of Temporary Exemption Approval The letter gives detail about testing requirement instructions.
Vehicle owners should bring the letter when they do get their vehicle tested. Smog Check Fees All smog checks in the state of Wisconsin are free.
Failed Smog Inspections — Next Steps Vehicles that do not pass their smog inspections must get their emissions-related repairs completed by a certified repair technician and be reinspected.
Moved to Wisconsin — Smog Check Requirements New Wisconsin residents who have recently moved to a qualifying Wisconsin county, must get any non-exempt vehicle older than 5 years to pass a vehicle emissions test within 45 days of registering the vehicle for the first time in Wisconsin.
Special Tips to Pass the Wisconsin Emissions Test Wisconsin vehicle owners may want to get their vehicles tested as soon as they receive their first testing notice. To fix, check to make sure the gas cap is on tight and is not broken. Keep the sealing surfaces in the cap clean so it can make a good seal.
If it is not, tighten it and drive around to see if the light goes off. The cost of their repair may be covered by the manufacturer. Do not just try to clear the codes. Test personnel will know and the vehicle will not pass inspection. Federal law states emissions systems on vehicles made in the and newer model years must have their emissions systems warrantied for two years or 24, miles.
Federal regulation states these vehicles must have a warranty on their OBDII and catalytic converters for eight years or 80, miles. Before you can renew your car registration , you must first pass and emissions test.
Failure to pass the WI smog test results in the denial of your registration renewal. Emissions inspections in Wisconsin are not required for every vehicle. Smog test exemptions do not, however, apply to vehicles that have had their emissions equipment tampered with. Inspections can be waived if the vehicle fits the following criteria:. If a Wisconsin DMV smog check is required and the vehicle owner is out of the state, then he or she has the option to complete the emission extension application, which provides a one-time 30 day temporary extension.
To request an extension, a driver will be required to complete an extension application, send a copy of the renewal notice and the registration fee be mailed to the following address:. Box Madison, WI If a vehicle continues to fail the emissions test, a waiver for the test may be available.
Smog certification waivers in Wisconsin may be applied if the following conditions are met:. For those wondering how much emission testing is in Wisconsin, the answer is that it is free. DMV emissions testing in Wisconsin is performed free of charge at the time of a vehicle inspection.
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