2026 アメリカ合衆国. 州ごとのウィンドウティント法: 合法的なVLTパーセンテージガイド

Learning the laws on tinting windows is also important to people who own vehicles who would wish to have a comfortable, プライバシー, and UV protection without breaking the state laws. Different states in the United States have their own regulations on how far their automotive windows can be tinted, mostly on the basis of percentages of Visible Light Transmission (VLT).

This guide on window tint law of 2026 is an updated version on the working principle of tint regulations, the meaning of VLT and what drivers ought to be aware of when installing window film.

VLTとは何か (可視光透過)?

VLT percentage refers to the amount of visible light that can pass through a window and its tint film.

• 70% VLT: Very light tint, high visibility

• 35% VLT: Moderate tint, balanced privacy and clarity

• 20% VLT: Dark tint, increased privacy

• 5% VLT: Extremely dark tint, しばしば「リムジンティント」と呼ばれます”

Lower VLT numbers indicate darker window film. While darker tints provide better privacy and heat rejection, they are more strictly regulated by law.

How Window Tint Laws Differ by State (2026 Update)

Most state regulations distinguish between:

• フロントガラス

• フロントサイドウィンドウ

• Rear side windows

• Rear windshield

Below are examples of common state requirements. Always verify local laws before installation.

カリフォルニア州のウィンドウティント法

• フロントサイドウィンドウ: Minimum 70% VLT

• リアサイド & rear windows: Darker tint allowed

• フロントガラス: Tint allowed above the AS-1ライン

• 赤, アンバー, and blue tints are prohibited

Texas Window Tint Laws

• フロントサイドウィンドウ: Minimum 25% VLT

• リアサイド & rear windows: No VLT limit for most vehicles

• フロントガラス: Tint allowed on top 5 インチ

Florida Window Tint Laws

• フロントサイドウィンドウ: Minimum 28% VLT

• リアサイド & リアウィンドウ: Minimum 15% VLT

• フロントガラス: Tint allowed above AS-1 line

New York Window Tint Laws

• フロントサイドウィンドウ: Minimum 70% VLT

• リアサイド & リアウィンドウ: Minimum 70% VLT

• フロントガラス: ページのトップへ 6 inches may be tinted

Other States (General Patterns)

• Many states require 30–35% VLT on front side windows

• Rear windows often allow darker tint, especially on SUVs and vans

• Some states restrict reflective or mirrored films

• Medical exemptions may apply in certain cases

Why Window Tint Laws Matter

✔ 運転安全
Excessively dark tint can reduce visibility, especially at night or in poor weather.

✔ 法的遵守
Non-compliant tint can lead to fines, inspection failure, or removal orders.

✔ Balanced Comfort
Legal tint still provides glare reduction, UV保護, and interior cooling.

How to Choose the Right Legal Window Tint

1. Check Your State’s Current Law

Regulations vary widely and can change. Confirm rules through official state or DMV sources.

2. Understand AS-1 Line Rules

Many states allow darker tint only above the AS-1 line on the windshield.

3. Match Tint to Your Driving Needs

• High visibility & 夜間運転 → より高いVLTを (50–70%)

• プライバシー & 熱還元 → lower VLT within legal limits

4. Don’t Confuse Shade With Performance

High-quality ceramic window films can block heat and UV rays without using dark tint.

総評

The laws expressing window tints in the U.S. are strictly enforced and state specific. This window tint law summary of 2026 will help the drivers to be aware of the legal VLT limits and make a decision before the window film installation.

To be secure, and to have a good sleep, it is always better to select the window tint that will satisfy the local laws as well as your requirements on the road.