Emission test

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The Wisconsin Vehicle Inspection Program (WIVIP) at WisconsinVIP.org is administered by WisDOT and managed by contractor OPUS Inspections Inc. (OPUS). 

Vehicles customarily kept in one of these seven southeastern Wisconsin counties require an emissions test: Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha.

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The Wisconsin Department of Transportation (WisDOT) notifies vehicle owners when an emission test is required. 

A test is required for the following vehicles:

  • Vehicles with auto or light truck plates
  • Vehicle model years 1996 - 2006 with a gross vehicle weight rating (GVWR) less than 8,501 lbs. (gasoline, Natural gas, or hybrid)
  • Vehicle model years 2007 and newer with a gross vehicle weight rating (GVWR) up to 14,000 lbs. (diesel, gasoline, natural gas, or hybrid)
A test could be required for the following:
  • When a vehicle is purchased (within 45 days)
  • When an owner is added or removed on a vehicle title (test within 45 days)
  • Every other year before plates can be renewed
  • New residents transferring vehicle to Wisconsin (test within 45 days)
You only need to bring one of the following documents:
  • Renewal statement sent by mail or renewal notice sent from eNotify via email
  • Certificate of registration
  • The emission letter you received from the DMV
  • Prior emission inspection report
  • Substitute Renewal Notice/Non-operation Statement MV2016
  • Wisconsin title​

If you are renewing and your vehicle is not available, you may submit the form MV2472​ Temporary Exemption Application.​

Please contact OPUS 1-866-623-8378 or the Technical Assistance webpage at Wisconsin Vehicle Inspection Program​ if you are unable to complete inspection requirements. 


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