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West Virginia Street Legal Laws

Wyoming Street Legal Laws



Wisconsin Lift Laws and Vehicle Equipment Laws


Wisconsin's street legal laws include a suspension lift limit and a tire size limit, while frame height and bumper height remain unrestricted. Keeping the lift law and tire height law in mind, suspension lift kits, aftermarket wheels and tires, performance shocks, aftermarket bumpers, and grille guards are allowed.






Governing Laws

Code

The Wisconsin Statutes (WS) and Wisconsin Administrative Code (WAC) govern the state's street legal requirements.

WS Ch. 347
WAC-Trans.






Vehicle Dimensions

Dimensions

All vehicles driven in Wisconsin are restricted to a maximum width of 102 inches, a maximum height of 13 feet 6 inches, and a maximum single vehicle length of 40 feet.

WS 348-05
WS 348-06
WS 348-07






Tire Restrictions

Tires

All vehicle tires must be safe and without any bulges or exposed cords. Wisconsin has no listed minimum tire tread depth. Tire grooving is prohibited. Vehicles with a GVWR of 8,000 lbs. or less have a maximum tire size of 8 inches taller (diameter) over the stock tire size.

WS 347-455






Wheel Restrictions

Wheels

There are no regulations on wheels found in Wisconsin's laws.






Braking Requirements

Brakes

Wisconsin requires brakes capable of stopping the vehicle within 50 feet from a speed of 20 mph. A secondary, mechanical, parking brake is also required.

WS 347-36






Steering Laws

Steering

Steering systems are not covered in Wisconsin's code.






Suspension Laws

Suspension

4x4 vehicles with a GVWR of 8,000 lbs. or less have a suspension lift limit of 5 inches. Shackles may only be 2 inches longer than stock.
Note: the DOT FAQs list both 4 and 5 inch lift limits, 5 inches is correct.

WS 347-455
WAC-Trans-305.29






Frame Requirements

Frame

Wisconsin has no maximum vehicle frame height.






Bumper Restrictions

Bumpers

Rear bumpers are required on pickup trucks in Wisconsin. Cars must have rear bumpers attached in the same manner as they came from the factory. Car bumpers must be within 2 inches of factory bumper height while truck bumpers must be within 9 inches.

DOT FAQs






Fender Requirements

Fenders

Wisconsin requires adequate fenders and/or mud flaps on front and rear tires to prevent splashing. Tires can stick out up to 2 inches past the original fenders but they must be covered by fender extensions.

WS 347-46
WAC-Trans 305.22
DOT FAQs






Lighting Requirements

Lights

In addition to headlights and tail lights, vehicles in Wisconsin are allowed to have several auxiliary lights. Auxiliary lights mounted on the roof of a vehicle are allowed but cannot be used for highway use.


Light

Number

Min. Height

Max. Height

Headlights

2 min.

24 inches

54 inches

Tail lights

1 min.

20 inches

72 inches

Spot lights

2 max.

n/a

n/a

Fog lights

2 max.

n/a

n/a


( Measured to the center of the light. )



WS 347-09
WS 347-13
WS 347-26
DOT FAQs






Window Laws

Windows

Wisconsin's laws do not specifically state that windshields are required. Vehicles with windshields must, however, be equipped with windshield wipers.

WS 347-42






Exhaust Requirements

Exhaust

In Wisconsin, mufflers are required equipment. Exhaust cutouts and bypasses are prohibited.

WS 347-39






Engine Swap Rules

Engine

It is unclear whether or not Wisconsin has any engine swap or engine performance modification rules.






Emissions Testing

Emissions

7 Counties in Wisconsin currently require emissions testing.







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