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Wisconsin emissions test (Wisconsin Vehicle Inspection Program): the official wording
Everything in quotation marks here is from 3 sources and was matched to them on November 11, 2026. The quotes are the sources’ words; ours only label them.
On this page: where · how often · fee · new and older vehicles · diesel, electric, hybrid · check a vehicle · sources
What does the text call it?
The Wisconsin Vehicle Inspection Program (WIVIP) at WisconsinVIP.org is administered by WisDOT and managed by contractor OPUS Inspections Inc. (OPUS).
The page we point to: Wisconsin DMV, Emission test.
Which counties does the text name?
The quoted text names 7 counties:
- Kenosha County
- Milwaukee County
- Ozaukee County
- Racine County
- Sheboygan County
- Washington County
- Waukesha County
Vehicles customarily kept in one of these seven southeastern Wisconsin counties require an emissions test: Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha.
How often is the test?
Testing is required at Change of Ownership (>5 model years) and at time of Registration Renewal (every 2 years).
What does the test cost?
We found no fee on the pages we could read for Wisconsin. That is a gap in what we could quote, not a statement about the rule.
What does the text say about new and older vehicles?
Every other year, 1996 and newer vehicles (newest 3 model years are exempt) must be tested before their license plates can be renewed.
Listed under:
A test is required for the following vehicles:
Vehicle model years 1996 - 2006 with a gross vehicle weight rating (GVWR) less than 8,501 lbs. (gasoline, Natural gas, or hybrid)
Shown with it, so that neither is read alone:
1996 - 2006 with a GVWR < 8,501 lbs. require testing ( Gasoline Only )
What about diesel, electric and hybrid vehicles?
Every current line we hold for Wisconsin that uses the word diesel, electric or hybrid. Some are about one place or one kind of test; each speaks for itself.
Listed under:
A test is required for the following vehicles:
Vehicle model years 1996 - 2006 with a gross vehicle weight rating (GVWR) less than 8,501 lbs. (gasoline, Natural gas, or hybrid)
Shown with it, so that neither is read alone:
1996 - 2006 with a GVWR < 8,501 lbs. require testing ( Gasoline Only )
Listed under:
A test is required for the following vehicles:
Vehicle model years 2007 and newer with a gross vehicle weight rating (GVWR) up to 14,000 lbs. (diesel, gasoline, natural gas, or hybrid)
Shown with it, so that neither is read alone:
2007 and newer with a GVWR < 14,001 lbs. require testing ( Diesel and Gasoline )
What about heavier vehicles?
Listed under:
A test is required for the following vehicles:
Vehicle model years 1996 - 2006 with a gross vehicle weight rating (GVWR) less than 8,501 lbs. (gasoline, Natural gas, or hybrid)
Shown with it, so that neither is read alone:
1996 - 2006 with a GVWR < 8,501 lbs. require testing ( Gasoline Only )
Listed under:
A test is required for the following vehicles:
Vehicle model years 2007 and newer with a gross vehicle weight rating (GVWR) up to 14,000 lbs. (diesel, gasoline, natural gas, or hybrid)
Shown with it, so that neither is read alone:
2007 and newer with a GVWR < 14,001 lbs. require testing ( Diesel and Gasoline )
What else does the text say?
Motorcycles are exempt from the emissions test
Listed under:
A test could be required for the following:
New residents transferring vehicle to Wisconsin (test within 45 days)
Vehicles more than five model years old are required to be inspected upon change of ownership.
Wisconsin accepts out-of-state emissions tests.
Vehicles subject to emissions inspection may fulfill the inspection requirement up to 180 days prior to their license plate renewal date.
Check a vehicle against these quotes
Enter a model year, a fuel and a weight rating, and choose the county. The checker repeats the quotes above and, where a figure can be compared, says where your entry falls against it. It does not decide anything about your vehicle.
Where do these quotes come from?
- Wisconsin DMV, Emission test (wisconsindot.gov; state agency page; read November 11, 2026)
- Wisconsin Vehicle Inspection Program, Inspection Elements (wisconsinvip2.org; program site we treat as contractor-run, linked from Wisconsin DMV, Emission test; read November 11, 2026)
- Wisconsin Vehicle Inspection Program, Frequently Asked Questions (wisconsinvip2.org; program site we treat as contractor-run, linked from Wisconsin DMV, Emission test; read November 11, 2026)
Spotted a quote that has changed at its source? Tell us. See also the comparison table for the other states.