TintingSource › VLT Percentage Guide
Window Tint VLT Percentage Guide
What do different tint darkness levels look like — and which is legal in your state?
What is VLT?
VLT stands for Visible Light Transmission — the percentage of visible light that passes through your window film and glass combined. A lower percentage means darker tint. Most state tint laws specify a minimum VLT percentage for each window position on your vehicle.
5% VLT — Limo Tint
Illegal on most vehicles in most states
Extremely dark — almost no visibility from outside. Common on limousines and some SUV rear windows where allowed by law. Not street legal for front or side windows in virtually any US state.
15% VLT — Very Dark
Legal for rear windows in many states
Very dark tint. Provides excellent privacy and heat rejection. Often legal for rear side and rear windows but illegal for front side windows in most states.
20% VLT — Dark
Common legal limit for rear windows
A popular choice for rear windows and SUV backs. Noticeably dark from outside. Legal for rear applications in most states but typically not for front side windows.
35% VLT — Medium
Legal for front windows in some states
The most popular all-around choice. Dark enough to reduce glare and heat, light enough for safe nighttime visibility. Legal for front side windows in several states including Texas and Florida.
50% VLT — Light
Legal for front windows in most states
Light tint that is barely noticeable but still blocks UV rays and reduces glare. Often used on front side windows in states with strict tint laws.
70% VLT — Nearly Clear
Legal everywhere
Nearly invisible tint — often called clear tint or UV film. Blocks UV rays without any visible darkening. Ideal for windshields or drivers who want protection without appearance change.