Montana Window Tint Laws
Complete guide to window tinting regulations in Montana for 2026
Tint Darkness Requirements
Understanding VLT Percentages
The percentages below indicate the minimum Visible Light Transmission (VLT) allowed. Lower percentages mean darker tints. For example, 35% VLT means at least 35% of light must pass through.
| Windshield | Non-reflective tint allowed on top 4 inches |
| Front Side Windows | 24% VLT minimum |
| Back Side Windows | 14% VLT minimum |
| Rear Window | 14% VLT minimum |
Medical Exemption
Medical Exemptions Available
Montana allows medical exemptions for window tinting for individuals with documented medical conditions requiring protection from sunlight or UV exposure, including photosensitivity disorders and certain skin conditions.
📋Steps to Obtain Medical Exemption
- 1Schedule consultation with licensed physician
- 2Obtain completed medical exemption form signed by physician
- 3Submit application to Montana Motor Vehicle Division
- 4Receive approved exemption certificate
- 5Display certificate in vehicle at all times during operation
📄DMV Forms & Documentation
Montana MVD Medical Exemption Certificate with physician documentation required
Other Tint Laws & Requirements
| Reflection Limits | No metallic or mirrored tint allowed on any windows |
| Color Restrictions | Red and amber tints are prohibited on front windshield and front side windows |
| Certification | Tint manufacturer must certify compliance with Montana standards |
| Stickers | Certificate sticker must be placed between tint film and glass on driver's side |
About Montana
State Overview
Montana's high elevation and over 300 days of sunshine create intense UV exposure. Summer temperatures can exceed 100°F in many areas, making window tinting valuable for both heat reduction and UV protection.
Important Notes
Montana Highway Patrol enforces window tint regulations. Dual side mirrors required if rear window is tinted. Montana allows darker tint on rear windows compared to front windows.
Cities and Counties in Montana
Legal References
The information on this page has been compiled from official state sources and regulations:
- Montana Code Annotated 61-9-410
- Montana Motor Vehicle Division
- Montana Highway Patrol Safety Bureau
Disclaimer
Laws and regulations are subject to change. Always verify current requirements with official state sources before making any decisions regarding window tinting. This information is provided for educational purposes only.