Vehicle Equipment and Rules

Hawaii

No statewide restriction.


Hawaii

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Hawaii

Signs or stickers displayed in a 7-inch square in the lower corner of the windshield farthest removed from the driver, or signs or stickers displayed in a 5-inch square in the lower corner of the windshield nearest the driver are permissible.


Hawaii

N/A.


Idaho

No statewide restriction.


Idaho

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Idaho

Signs, posters, or other non-transparent materials that could obstruct the Driver’s view are illegal.


Idaho

N/A.


Idaho

Maximum bumper heights are determined by vehicle class and the GVWR. As such, the maximum heights are:

  • Passenger cars, front: 22 inches; rear: 22 inches.
  • Trucks and multipurpose vehicles, front: 24 inches; rear: 26 inches.
  • Vehicles from 4,501 to 7,500 lbs. GVWR, front: 27 inches; rear: 29 inches.
  • Vehicles from 7,501 to 10,000 lbs. GVWR, front: 28 inches; rear: 30 inches.
  • 4-wheel drive or dual-wheel vehicles with a 10,000 lbs. or less GVWR, front: 30 inches; rear: 31 inches.


Idaho

Headlights are required to be on from sunset to sunrise and when visibility is less than 500 feet.


Idaho

Hazard light use is not permitted while driving except to indicate the presence of a vehicular traffic hazard requiring unusual care in approaching, overtaking or passing.


Idaho

Tire chain usage is permitted for hazardous weather or other related incidents only, but may not damage the highway surface.


Idaho

Studded tires are permitted October 1 to April 30. Fire departments and firefighting agencies are exempt. Other exemptions may be granted by the Idaho Transportation Board.


Idaho

The front windshield can have tinting applied, but only on the top 6 inches of the window.

The front side vents, front side windows to the immediate left and right of the driver, and rear window may have a light transmission not less than 35%.

The side windows to the rear of the driver may have a light transmission of not less than 20%.


Illinois

The maximum bumper height on all motor vehicles except multipurpose passenger vehicles is 28 inches for the front bumper and 30 inches for the rear bumper, measured from the road surface.


Illinois

Headlights are required to be on from sunset to sunrise, when wipers are in use, or when visibility is less than 1000 feet.


Illinois

The use of hazard lights is not permitted while driving.


Illinois

Tire chain usage is permitted for hazardous weather or other related incidents only, but may not damage the highway surface.


Illinois

Studded tire use is not permitted for most drivers. Rural mail carriers and persons with disabilities living in unincorporated areas may use them between November 15 and April 1.


Illinois

Any glass tinting on the front and side windows is prohibited, except when accompanied by a certification by a licensed physician stating that the driver’s medical condition would require it.

Exceptions may be permitted for certain windows with specified light transmittance and variances.

A non-reflective tinted film may be used along the uppermost portion of the windshield if such material does not extend more than 6 inches down from the top of the windshield.

The use of non-reflective, smoked or tinted glass, non-reflective film, perforated window screen, or other decorative window application on windows to the rear of the driver’s seat is permitted, except the motor vehicle must be equipped with a side mirror on each side of the motor vehicle and may not have window treatment on the windows immediately adjacent to each side of the driver.


Illinois

It is illegal for any vehicle to be equipped with a television receiver, video monitor or video screen that is operating or located at any point visible to the driver.  Exempts vehicle information displays, GPS and navigation systems, and systems that lock when the vehicle is in motion. Also exempts equipment permanently installed in the vehicle and moving entertainment images that are not visible to the driver while the vehicle is in motion.


Illinois

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Illinois

No person shall drive a motor vehicle with any sign, poster, window application, reflective material, non-reflective material or tinted film upon the front windshield.


Illinois

N/A.


Indiana

Hazard light use is not permitted while driving except in emergency situations.


Indiana

Tire chain usage is permitted for hazardous weather or other related incidents only, but may not damage the highway surface.


Indiana

Studded tires are permitted October 1 to May 1, and if retracted, May 2 to September 30.


Indiana

A person may not drive a motor vehicle with any tinted windows that obstruct the driver’s clear view of the highway or intersecting highway or that prevent the ability of people outside the vehicle to recognize the people inside the vehicle. Windows may not be tinted with a material that has a total solar reflectance of visible light of more than 25 percent as measured on the non-film side and light transmittance of less than 30 percent in the visible light range. The exceptions to this rule are tinted windows installed by the manufacturer that are in compliance with federal law, and windows that are tinted for medical reasons, which require a physician’s or optometrist’s certification that must be carried in the car at all times. This certification must be updated annually.


Indiana

A person may not own or operate a motor vehicle that has a television set installed in a manner that allows the person driving the vehicle to see the television set.


Indiana

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Indiana

Stickers can be placed on the windshield if the stickers are 4 square inches or less and placed on the bottom of the passenger’s side of the windshield.


Indiana

N/A.


Indiana

A passenger vehicle that was originally equipped with a standard bumper must have a bumper when operated on a highway. The height of the bumper cannot vary more than 3 inches from the original manufactured bumper height.


Indiana

Headlights are required to be on from sunset to sunrise and when visibility is less than 500 feet. Headlights must be white or amber.


Iowa

Permitted if Driver’s view is not obstructed.


Iowa

N/A.


Iowa

Modification of bumper height is permitted.


Iowa

Headlights must be on from sunset to sunrise, when visibility is less than 500 feet, or in conditions of insufficient light/adverse weather.


Iowa

The use of hazard lights are not permitted while driving except to indicate a traffic hazard.


Iowa

Tire chain usage is permitted for hazardous weather or other related incidents only, but may not damage the highway surface.


Iowa

Studded tires are permitted November 1 to April 1.


Iowa

No person may operate a motor vehicle with a windshield, a side window to the immediate right or left of the driver, or a sidewing forward of the driver that has less than 70% transparency unless the person suffers from a severe light-sensitive condition documented by a licensed physician.


Iowa

No statewide restriction.


Iowa

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Kansas

Modification of original vehicle bumper height is permitted.


Kansas

Headlights are required to be on from sunset to sunrise, due to insufficient light or unfavorable atmospheric conditions, including smoke or fog, if visibility is less than 1000 feet, or when windshield wipers are in continuous use as a result of rain, sleet, or snow.


Kansas

Hazard light use is not permitted while driving.


Kansas

Tire chain usage is permitted for hazardous weather or other related incidents only, but may not damage the highway surface.


Kansas

Studded tires are permitted November 1 to April 15.


Kansas

The windshield may have tinting installed above the AS1 line along the top of the windshield.

All windows must have a total light transmission of at least 35%. Reflective tinting is prohibited on all windows.


Kansas

No statewide restriction.


Kansas

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Kansas

Signs, posters, or other non-transparent materials may not be placed on any window that substantially obstructs, obscures, or impairs the Driver’s clear view of the roadway.


Kansas

N/A.


Kentucky

Studded tires are permitted.


Kentucky

Any windows that are forward of or adjacent to the driver’s seat may not be composed of, covered by, or treated with any sunscreening material or any product that has the effect of making the windows non-transparent. Sunscreening material is permitted if it has a total solar reflectance of visible light of not more than 25% on the non-film side.

Any windows that are behind the driver may not be covered by, composed of, or treated with any sunscreening material, but such material may be used if it has a total solar reflectance of visible light of not more than 35% on the non-film side.

The rear window of any vehicle may not be composed of, covered by, or treated with any sunscreening material unless the vehicle is equipped with side mirrors on both sides.

Window tinting on the windshield is permitted only along the top strip of the windshield.


Kentucky

No statewide restriction.


Kentucky

Radar detectors are permitted for passenger vehicles but prohibited for use by commercial vehicles.


Saskatchewan

On passenger cars, the center part of the bumper must be between 380 mm and 560 mm above the ground when the vehicle is unloaded on level ground and the tires are inflated within the range specified by the tire manufacturer.

On light trucks, the height of the lowest part of the front bumper shall be not more than 750 mm above the ground when the vehicle is unloaded on level ground and the tires are inflated within the range specified by the tire manufacturer.


Saskatchewan

Headlight use is required for the period of one-half hour after sunset to one-half hour before sunrise or at any other time when conditions of poor visibility exist.


Saskatchewan

Hazard lights may not be used unless a vehicle is coming to a stop or is standing on a highway, it is necessary to do so for the safe operation of the vehicle, or the vehicle presents a hazard to other vehicles on the highway.


Saskatchewan

Tire chains are permitted.


Yukon

Studded tires are permitted.


Yukon

Application of after-market vehicle glass-darkening material is permitted on all windows except windshield. Tinting permitted on rear window cannot obstruct driver’s view.


Yukon

Radar detectors are not permitted.


Yukon

No person may drive a vehicle on a highway if the view through the windshield or windows is so obscured by mud, frost, steam, or any other thing as to make the driving of the vehicle hazardous or dangerous.


Yukon

N/A.


Yukon

Modification of original vehicle bumper height is permitted within regulated limits.


Yukon

Headlights are required to be used at all times.


Yukon

Hazard light use is permitted while driving to indicate a hazard.


Yukon

Tire chains are permitted.


Yukon

No person may drive on a highway a vehicle that is equipped with a television set unless the television set is located and operated so that the driver cannot by any means see the screen of the television while the vehicle is in motion.