Legal window tint in Arizona — A Complete Guide to VLT Laws and Regulations

Car window with dark tint reflecting sunlight

What Are Arizona Window Tint Laws?

Arizona window tint laws regulate how dark or reflective window tint can be on a vehicle. These rules are designed to balance driver comfort and heat reduction with visibility and safety for drivers and law enforcement. Arizona enforces tint limits using Visible Light Transmission (VLT) percentages, which measure how much light passes through the glass and tint combined.

What Is VLT (Visible Light Transmission)?

Visible Light Transmission (VLT) is the percentage of visible light that passes through a vehicle’s window. A higher VLT means a lighter tint, while a lower VLT means a darker tint.

For example, a 35% VLT tint allows 35% of visible light to pass through the window.

Legal Window Tint Limits in Arizona

Arizona law sets different tint limits depending on the window location.

Passenger vehicles in Arizona must follow these guidelines:

• Windshield: Non-reflective tint is allowed above the manufacturer’s AS-1 line

• Front side windows: Must allow at least 33% VLT

• Rear side windows: Any darkness allowed

• Rear window: Any darkness allowed

Rear windows may be tinted darker as long as the vehicle has dual side mirrors.

Are Reflective or Mirrored Tints Legal in Arizona?

Arizona restricts how reflective window tint can be.

• Front and rear side windows may not be more than 35% reflective

• Mirrored or highly metallic finishes may be restricted depending on appearance and reflectivity

Reflectivity limits are enforced separately from VLT limits.

Are Medical Exemptions Available for Window Tint in Arizona?

Arizona allows medical exemptions for window tint in certain cases. Drivers with qualifying medical conditions may be permitted to use darker tint than normally allowed.

Medical exemptions typically require:

• Physician documentation

• Approval through the Arizona Department of Transportation

Exemptions must be carried in the vehicle at all times.

How Are Window Tint Laws Enforced?

Window tint laws are enforced using:

• Visual inspection

• Light transmission meters

If tint is found to be too dark or too reflective, drivers may receive a citation and be required to remove or replace the tint.

What Happens If Your Window Tint Is Too Dark?

Consequences may include:

• Traffic citation

• Fine

• Requirement to remove non-compliant tint

Enforcement can vary by jurisdiction, but compliance reduces the risk of repeat stops.

Does Factory Glass Affect Tint Legality?

Yes. Factory-tinted glass already has a VLT rating. Any aftermarket tint applied to factory glass reduces total VLT.

This means installers must account for:

• Factory glass tint level

• Aftermarket film darkness

• Combined VLT compliance

Professional installers measure this before installation.

Window Tint Installation in Tempe

At AZ Fineline Window Tint & Wrap, window tint installations are performed with Arizona tint laws in mind. Tint options are selected based on vehicle type, factory glass, and legal VLT requirements to ensure compliance while maximizing heat and UV reduction.

How to Know Which Tint Is Right for You

The best tint choice depends on:

• Legal limits

• Heat rejection needs

• Visibility preferences

• Vehicle type

  
  

A professional consultation at Fineline helps ensure your tint meets Arizona law while delivering the performance you want.