Iowa Window Tint Laws
Complete guide to window tinting regulations in Iowa 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 above manufacturer's AS-1 line |
| Front Side Windows | 70% VLT minimum |
| Back Side Windows | Any darkness allowed |
| Rear Window | Any darkness allowed |
Medical Exemption
Medical Exemptions Available
Iowa provides medical exemptions for window tinting when individuals have documented medical conditions that require protection from sunlight or UV exposure, including photosensitivity disorders and certain skin conditions.
📋Steps to Obtain Medical Exemption
- 1Schedule consultation with licensed physician or dermatologist
- 2Obtain completed medical exemption form signed by physician
- 3Submit application to Iowa Department of Transportation
- 4Receive approval certificate and keep in vehicle at all times
📄DMV Forms & Documentation
Iowa DOT Medical Exemption Certificate with physician documentation required
Other Tint Laws & Requirements
| Reflection Limits | No reflective or mirrored tint allowed on any windows |
| Color Restrictions | No specific color restrictions in Iowa window tint statute |
| Certification | Tint manufacturer must provide certification of compliance |
| Stickers | Certificate sticker must be displayed between tint and glass on driver's side window |
About Iowa
State Overview
Iowa experiences hot, humid summers with temperatures frequently reaching 95°F. The state's agricultural landscape and open roads make window tinting popular for heat management and glare reduction.
Important Notes
Iowa State Patrol enforces window tint laws. Dual side mirrors required if rear window is tinted. Iowa has lenient rear window requirements but strict front window regulations.
Cities and Counties in Iowa
Legal References
The information on this page has been compiled from official state sources and regulations:
- Iowa Code Section 321.438
- Iowa Department of Transportation
- Iowa State Patrol Safety Education
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.