1. Hit Up Your Department of Motor Vehicles (DMV) or State Transportation Website

They’re the most official source. Look for pages titled “Tint Laws,” “Tint Regulations,” or “Window Film Rules.” These sites give you the exact VLT% (Visible Light Transmission) allowed per window, any reflectivity caps, color restrictions, and windshield rules.

Example: In Arizona, front windows must allow at least 33% VLT and can’t be more than 35% reflective, rear windows have no darkness limit, and the windshield can only be tinted above the AS‑1 line.

2. Use a Trusted Tint Law Database or Aggregator

Websites like Rayno, Tint360, GreenfilmUSA, or Metro Restyling publish easy-to-read state-by-state charts of tint laws.

Pro tip: Double‑check the date—these laws change occasionally.

3. Confirm with a Local Tint Shop or Installer

Got a reputable shop in town? They deal with cop traffic and fines daily—they’ll tell you what’s legal in your county or city, including hiding spots officers look for.

4. Check for Medical Exemptions (if needed)

If you have a medical condition that requires darker tint, your state may allow it with documentation. Most need a doctor’s note and DMV-approved exemption (e.g. Arizona’s Form 40‑1511).

5. Look into Reciprocity (If You Travel)

If you travel between states, especially with dark tint, find out how your tint compares to other state laws. Some states allow your home state’s tint if you’re registered there, but it can still attract attention.

✅ Quick Checklist:

1. Visit your state’s DMV or transportation website
2. Review state-level VLT, reflectivity, windshield, and color limits
3. Use a trusted aggregated chart for a snapshot
4. Talk to a reputable local tint installer
5. Check if you qualify for medical exemptions
6. For multi-state travel, research interstate tint rules

Need help finding your state’s exact numbers or want us to guide you through them? Share your state and we’ll pull up the rules for you.