How dark can your windows be tinted on a van in wisconsin, the back
windows, the front windows?

Howdy outongreystreet5-ga,

Wisconsin Department of Transportation (DOT) "Trans" 305.32 states the law.
http://www.legis.state.wi.us/rsb/code/trans/trans305.pdf

"Tinting of the vent and front side windows is permitted as follows ..."

The TintCenter website is nice enough to translate the above into English.
http://www.tintcenter.com/laws/WI/

"...
Darkness of tint is measured by Visible Light Transmission percentage (VLT%).
In Wisconsin, this percentage refers to percentage of visible light allowed
in through the combination of film and the window.

Windshield Non-reflective tint is allowed along the top of the windshield
above the manufacturer's AS-1 line.

Front Side Windows [-] Must allow more than 50% of light in.
Back Side Windows [-] Must allow more than 35% of light in.
Rear Window [-] Must allow more than 35% of light in.
..."

The above is equally applicable to vans as it is to cars.  You will want to
read DOT "Trans" 305.32 in detail for references to medical exceptions, etc.

If you need any clarification, please feel free to ask.


Search strategy:

Google search on: window tint OR tinting OR tinted Wisconsin law
://www.google.com/search?q=window+tint+OR+tinting+OR+tinted+Wisconsin+law

Google search on: 305.32 Wisconsin
://www.google.com/search?q=305%2e32+Wisconsin

Looking Forward, denco-ga - Google Answers Researcher