Tint Percentages by State – What You Can Legally Use

Ever wonder why your friend’s car looks darker than yours? It’s not just style – each state has its own rules on how much tint you can have. This guide breaks down the legal Visible Light Transmission (VLT) numbers so you can pick the right shade without getting a ticket.

How VLT Works and Why It Matters

VLT is the percentage of light that passes through your window. A lower number means a darker window. Most states set a minimum VLT for the front side windows and sometimes for the windshield. The back windows and rear glass usually have looser limits, but some places still enforce a ceiling.

Why care? Dark windows can reduce glare, keep the interior cooler, and add privacy. Too dark, however, can impair driver visibility and hide plates from law enforcement. That’s why each state draws a line.

Legal Tint Limits Across the US

Here’s a quick snapshot of the most common limits. Remember, numbers can change, so double‑check before you buy.

• California: Front side windows must let at least 70% of light in. Back windows can be any darkness.
• Texas: Front side windows need a minimum of 25% VLT. The rear windows and back glass can be as dark as you want.
• New York: Front side windows must be at least 70% VLT. The rear side windows need at least 40% VLT. The windshield can have a non‑reflective strip at the top.
• Florida: Front side windows require 28% VLT or higher. The rear side and back windows can go down to 15% VLT.
• Illinois: Front side windows need at least 70% VLT, while the rear side windows can be any shade.

Most northern states stick with a 70% minimum for front windows. Southern states often allow darker tints, sometimes as low as 20% for the rear. Some states, like Michigan and New Jersey, also have a “reflectivity” rule – the tint can’t be too mirror‑like.

If you’re moving between states, keep the stricter rule in mind. A tint legal in Arizona might get you pulled over in Colorado.

When you shop for tint, look for a film that lists its VLT rating. Reputable dealers will give you a Certificate of Compliance – a handy paper to show the police if you ever get stopped.

Installing tint yourself can be tempting, but a professional job usually guarantees the correct VLT and a clean finish. Badly applied tint can bubble, peel, or even reduce visibility more than the rating suggests.

Finally, think about the practical side. Darker windows reduce heat, but they also cut down on night visibility. If you do a lot of night driving, a 35% VLT for the rear windows might strike a good balance.

Bottom line: Know your state’s front‑window minimum, check any rear‑window limits, and get a certified install. With the right VLT, you’ll stay cool, look great, and keep the police off your tail.