Not exactly a smog expert, but live here and know a bit.
I am over in Walworth county, and we have no smog at all here.
You should hear and see some of the pickups around here.
Engine swaps galore, loud exhausts, etc.
I usually expect to see a high performance car when I hear them coming, but nope, all modified pickups.Here is a copy and paste right from the official Wisconsin DMV web page.....http://wisconsindot.gov/Pag...ts/emissiontest.aspx
"Which vehicles require a test?
The Wisconsin Department of Transportation (WisDOT) notifies vehicle owners when an emissions test is required. A test is required when license plates are renewed (the renewal notice contains details) and when ownership changes (a letter is sent).
Vehicles require an emissions test based on:
Vehicles customarily kept in one of the seven southeastern Wisconsin counties of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha.
Autos and light trucks model years 1996 to 2006 that have a gross vehicle rating up to 8,500 pounds, not including diesel powered vehicles.
Autos and light trucks model years 2007 and newer which have a gross vehicle rating up to 14,000 pounds, including diesel powered vehicles.
Certain regular occasions
After a transfer of ownership (transfer of plates or new plates issued).
After first registering in Wisconsin.
Before renewing registration (biennial testing, see below for details).
Certain non-regular occasions
When identified as having tampered emissions equipment.
When identified with fraudulent vehicle location information.
Government vehicles when designated by the department.
The following vehicles are exempt from emissions requirements (except for vehicles identified as having tampered emissions equipment):
Model year 1995 and older vehicles.
Model year 1996 and newer vehicles that are not OBDII-compliant (must be verified at a test station).
Diesel powered vehicles with a model year 2006 and older."