Idaho Car Window Tint Laws (Updated)

Window tint laws vary from state to state, and even from window to window. If you’re thinking about tinting your windows in Idaho, you may be wondering what the car tint laws are?

Quick Answer

The car window tint laws in Idaho are as follows: 

  • Front Windshield – No tint allowed below the AS-1 line.
  • Front Side Windows – Must allow at least 35% light transmission
  • Rear Side Windows – Must allow at least 20% light transmission
  • Back Window – Must allow at least 35% light transmission 

We’re going to take a look at each window and see how dark each window can be and still remain legal.

Window Tinting in Idaho – What Does the Law Say?

Window tinting is allowed in Idaho, but there are certain percentages that must be abided by. We’ll break down everything you need to know about tint laws in Idaho.

Can Windows Be Tinted in Idaho?

So, are windows allowed to be tinted in Idaho? The answer is yes, but only to a certain degree. Some windows, like the windshield, come with specific stipulations.

Front Windshield Above AS-1 Line: The front windshield cannot be tinted. The only exception is above the AS-1 line, which should be marked on your windshield. If there is no AS-1 line, then a strip six inches from the top is acceptable.

All other windows can be tinted: All other windows of your vehicle can be tinted to a certain percentage. They must also abide by a reflectance percentage allowance.

What Windows Can Be Tinted in Idaho?

The window tint laws in Idaho are pretty specific. They break down the windows into four major sections: the front windshield, the front side windows, the rear side windows, and the rear windshield. We’ll go through each one and let you know how dark those windows are allowed to be. That way, you can avoid unwanted fines and infractions.

Front Windshield: Like most states, Idaho does not allow for tint to be applied to the front windshield. The only exception being the strip at the top of the window above the AS-1 line. This line is marked on the windshield. If it is not, the top most six inches can be substituted for the AS-1 line.

Back Windshield: The rear windshield must allow at least 35% light transmission. The state of Idaho allows for a 3% tolerance limit, meaning you can have a tint with 32% light transmission and still be okay in terms of the law. The back windshield must also have a reflectance of 35% or less.

Diver and Passenger Windows: The windows located immediately left and right of the driver are allowed to be tinted. To remain legal, they must allow at least 35% light transmission. Additionally, they cannot have more than 35% reflectivity. The light transmission requirements have a 3% leniency tolerance, meaning they could be 32% and still be legal.

Rear Side Windows: The windows located behind the driver and passenger are allowed to be tinted. Like most states, these windows can be tinted darker than the passenger and driver side windows. They must allow at least 20% light transmission. Similar to the driver and passenger windows, they cannot have a reflectivity of more than 35%.

Restricted Colors: Tint laws for Idaho are located in Statute Title 49, chapter 9. According to this section, there are no specific restrictions on colored tint.

Idaho Window Tint Law Medical Exemption

Some states will allow darker tint on vehicles if the driver or a frequent passenger of the vehicle has a medical condition that makes them sensitive to sunlight. Idaho allows for medical exemptions. To obtain this exemption, keep the following in mind.

Must obtain written verification: If you have a medical condition that requires darker tint than what the state allows, be sure to obtain a written verification from a licensed physician. There is no specific form to be filled out

Keep verification in vehicle: Once your physician signs the written verification, be sure to keep this in your vehicle at all times.

Windshield light transmission: With a medical exemption, your windshield may be tinted so as to allow at least 70% light transmission, as opposed to the original state law to allow 100% light transmission.

Window Tint: All other windows in the vehicle besides the windshield must allow at least 20% light transmission even with a medical exemption.

Luminous reflectance: Besides the windshield, which must remain non-reflective, all other windows must still abide by the 35% or less reflectivity law.

Verification is for the person: The written verification is assigned to the person, not the vehicle. This is important to note because it means any car the person with the medical condition drives or rides in can have the windows tinted darker than the state’s allowance.

Frequently Asked Questions About Idaho Car Window Tinting Laws

Here are some of the most frequently asked questions about car window tinting laws in Idaho.

What does VLT mean according to Idaho state law? VLT stands for visible light transmission. In Idaho, this means “the ratio of the amount of total light, expressed in percentages, which is allowed to pass through the product or material to the amount of total light falling on the product or material.”

How much does car window tinting cost in Idaho? The average cost to apply window tint to a four-door sedan is around $210. This price will vary depending on what area you live in, what business you decide to go through, and how many windows you get tinted. The average price ranges from $192-$228.

How dark can your windows be in Idaho? In Idaho, your windshield cannot be tinted below the AS-1 line. The front side windows must allow at least 35% light transmission and the rear side windows must allow at least 20% light transmission. The rear windshield must allow at least 35% light transmission.

Is reflective or colored tint legal in Idaho? Both reflective and colored tint are legal in Idaho, but must be a certain percentage. The windshield cannot be reflective at all, but all other windows can be up to 35% reflective. There are no specific restrictions on colored tint in Idaho.

Can you get a ticket for tinted windows in Idaho? If the tint on your vehicle is darker than what the state’s laws allow, you may be pulled over by law enforcement. The penalty for tinted windows in Idaho is an infraction and can come with a fine of up to $67.

Wrap Up

If you are planning on tinting your windows in Idaho, be sure to read up on the laws to avoid fines and costly tint-removal fees.

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