Missouri Tint Laws

Car window tinting laws in Missouri were established in 2002. To help you understand the regulations for window tint darkness and reflection, we’ve compiled comprehensive information about your vehicle’s window tint. Additionally, there are other important rules and regulations pertaining to window tinting in Missouri, which are detailed below.


Disclaimer

While I have a background in commercial law and strive to provide accurate and informative content, it’s important to note that I am not a legal expert. The information presented in this blog is based on my interpretation of the subject matter, and laws can vary by location and change over time. It is strongly recommended that readers verify all sources of information and consult with legal professionals or relevant authorities before making any decisions related to tint laws.


Understanding the Terminology Regarding Tint Laws

The most important part of the legislation is understanding what VLT is and how law enforcement services check or test the percentage.

What is VLT

VLT, or Visible Light Transmission, is a measure of the amount of visible light that can pass through a window tint or film. It is commonly used to determine the darkness or opacity of window tints, and it’s an important factor in window tinting laws and regulations.

VLT is typically expressed as a percentage. For example, a window tint with a VLT of 20% allows only 20% of visible light to pass through, making it relatively dark and less transparent. Conversely, a window tint with a VLT of 70% allows 70% of visible light to pass through and is much lighter and more transparent.

How do Law Enforcement services test the VLT percentage?

Window tinting laws vary by jurisdiction, and they often specify the maximum allowable VLT for different types of windows on a vehicle, such as the front windshield, front side windows, rear side windows, and rear window. These laws are designed to ensure that drivers have adequate visibility and that law enforcement can see into vehicles for safety and identification purposes. The manner that they go about testing the VLT is by using a VLT gauge/meter.

Here is a YouTube Short from @TrafficServices and @TorontoPolice showcasing the device and how it works. Even though it is in Canada, it still is helpful to understand how the tint darkness is measured.

Window Tint Darkness in Missouri:

The regulations regarding window tint darkness in Missouri are based on the Visible Light Transmission (VLT), representing the percentage of visible light allowed through your car windows. The rules for sedans and SUVs/vans differ, offering specific guidelines for darkness.

Missouri Car Tint Laws For Sedans:

  • Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line. This allows you to personalize the top portion of the windshield without affecting visibility.
  • Front Side Windows: The law mandates that front side windows must allow more than 35% of light to pass through, ensuring the safety and visibility of the driver.
  • Back Side Windows: There are no specific restrictions on back side windows in terms of darkness.
  • Rear Window: Similar to back side windows, the rear window is not subject to specific darkness regulations.

Tint Laws for SUVs and Vans in Missouri:

  • Windshield: SUVs and vans can apply non-reflective tint above the manufacturer’s AS-1 line without specifying a particular VLT percentage.
  • Front Side Windows: The law requires that front side windows of SUVs and vans allow more than 35% of light to pass through for driver visibility.
  • Back Side Windows: SUVs and vans are permitted to use any level of darkness on back side windows.
  • Rear Window: Similar to back side windows, the rear window of SUVs and vans is unrestricted regarding darkness.
Type of WindowSedansSUVs/Vans
WindshieldNon-reflective tint allowed above the manufacturer’s AS-1 lineNon-reflective tint allowed above the manufacturer’s AS-1 line
Front Side WindowsMust allow more than 35% of light to pass throughMust allow more than 35% of light to pass through
Back Side WindowsNo specific restrictions on darkness for back side windowsAny darkness can be used on back side windows
Rear WindowNo specific restrictions on darkness for the rear windowAny darkness can be used on the rear window
A table of the window tint darkness laws for Missouri

Window Tint Reflection in Missouri:

Window tint can help reduce glare and heat by reflecting incoming light. Missouri law allows a certain level of light reflection when using window tint.

Reflectivity Laws For both Sedans and SUVs/Vans:

  • Front Side Windows: The law specifies that front side windows must not be more than 35% reflective, without providing an explicit definition of “reflective.”
  • Back Side Windows: Similar to front side windows, the law mandates that back side windows must not be more than 35% reflective without further clarification.

Additional Missouri Window Tint Rules and Regulations:

Missouri’s window tint laws encompass various other important regulations:

Side Mirrors

Dual side mirrors are required only if the back window is tinted, ensuring adequate visibility.

Restricted Colors

There are no explicit restrictions on the colors of window tint in Missouri.

Tint Variance

Missouri allows a 3% variance in tint darkness, offering some flexibility for compliance.

Certificates

Film manufacturers do not need to certify the film they sell in Missouri. Therefore, vehicle owners should ensure their chosen film adheres to state law.

Stickers

Although not mandatory, state law does not require stickers to identify legal tinting.

Medical Exceptions

Missouri law allows medical exemptions for special tint. For specific details about the terms of the exemption, consult your state law.

Regulations for Out-of-State Drivers

The same regulations apply to out-of-state drivers as those for drivers living in the State.
If you are from States such as Arkansas, Oklahoma, Kansas, Nebraska, Iowa, Illinois, and Kentucky, you are expected to abide by these laws and regulations.

Penalties

Violation of window tint laws in Missouri may result in consequences outlined in state law.

Keep in mind that Missouri’s tinting laws and regulations may be subject to different interpretations in various counties or local jurisdictions. For complete compliance, safety, and accurate information, it’s advisable to verify these regulations with your local Department of Motor Vehicles (DMV) or consult local law enforcement authorities.

Our information about window tint laws in Missouri was most recently updated in 2023, and we are committed to providing accurate, up-to-date information. If you discover any inaccuracies or outdated details, please feel free to contact us, and we will promptly address them.