California Vehicle Code § 26708
California Window Tint Laws: 2026 Guide
Explore the essential 2026 guide to California window tint laws under California Vehicle Code (CVC) § 26708. Learn the allowable tint darkness for sedans, SUVs, trucks, and vans to stay compliant, maximize heat rejection, and avoid fix-it tickets.
What is VLT?
Visible Light Transmission (VLT) measures the percentage of visible light that passes through your vehicle’s window glass and film combined. In California, a higher VLT percentage means a lighter tint, while a lower VLT percentage means a darker tint.
Higher VLT — nearly clear, lighter tint
Lower VLT — “limo tint,” darkest option
Legal Tint Limits by Vehicle Type (2026 Standards)
California applies uniform tint percentage rules across passenger cars, sedans, SUVs, trucks, and vans.
| Window Placement | Legal Tint Darkness (VLT) | Key Requirements |
|---|---|---|
| Windshield | Top 4 inches only (or above AS-1 line) | Must be non-reflective; colored tints prohibited. |
| Front Side Windows | Minimum 70% VLT combined | Total light transmission of factory glass + aftermarket film must be at least 70%. |
| Back Side Windows | Any darkness (0%–100%) | No limit (limo tint permitted). |
| Rear Window | Any darkness (0%–100%) | Dual side-view mirrors required on the vehicle. |
Tint Reflectivity and Appearance Rules
REFLECTIVITY
Front and back side windows cannot have a metallic or mirror-like finish; reflection must not exceed that of standard bare window glass.
PROHIBITED COLORS
Tint films in red, amber, or blue are strictly prohibited anywhere on the vehicle. Side windows must remain neutral or colorless.
Mandatory Requirements & Exemptions
- Dual Side Mirrors: Required by law if your rear window or back side windows are tinted to any degree that obscures direct rearward vision.
- Manufacturer Certification & Documentation: Tint manufacturers must certify their film meets California standards. Keep the installer’s receipt or certificate of compliance in your glove box.
Medical Exemptions (CVC § 26708.2)
Drivers or regular passengers with qualifying medical conditions (e.g., lupus, severe photosensitivity, skin cancer risk) may use darker front-window tints or specialized UV-blocking films. A signed recommendation from a licensed physician or dermatologist must be kept in the vehicle at all times.
Enforcement and Citations
California tint laws are statewide, enforced uniformly by the California Highway Patrol (CHP) and local police departments using photometric light meters.
Violation cited as a “correctable violation” (fix-it ticket)
Illegal film is removed from the vehicle
Vehicle is inspected and signed off by law enforcement
Court administrative dismissal fee is paid
For the best heat and UV rejection on front windows while remaining fully compliant with California’s 70% VLT threshold, consult a professional installer about high-VLT (70%–80%) ceramic films.