The short answer
In 48 of 51 U.S. jurisdictions (50 states + D.C.), putting aftermarket film on the full windshield below the AS-1 line is prohibited. A small handful of states allow specialty non-reflective clear films under specific conditions.
States where a full clear windshield film may be legal
- Oklahoma — allows clear non-reflective aftermarket film on the full windshield under specific labeling requirements.
- Ohio — allows specialty non-reflective films meeting state inspection criteria.
- Washington — allows certified clear films under limited conditions.
The default rule in the other 48
Every other U.S. state applies the AS-1 line or fixed-inches rule: non-reflective strip above the line, nothing below. See our full windshield tint guide.
Why the rule exists
FMVSS 205 requires 70% minimum VLT at manufacture for all safety glazing in the driver’s primary view. States layer their own rules on top to prevent any aftermarket reduction. The strict prohibition is a safety and enforcement-simplification choice — officers can visually identify any film below the AS-1 line without measurement.
Medical exemption on the windshield
Most state medical tint exemptions explicitly exclude the windshield. If your exemption allows darker side-window tint, the windshield rule generally still applies. See medical exemption guide and your state’s medical exemption page.
Clear windshield film: navigating the legal grey zone
The grey zone, precisely defined
Federal FMVSS 205 requires a minimum 70% VLT on the windshield. A clear ceramic film at 70–90% VLT technically meets the federal rule. The grey zone is entirely state-level: almost all state statutes reference "aftermarket tint" below the AS-1 line as prohibited, without distinguishing between clear and dark film.
In courtroom practice, "film" usually wins over "clear" — a film visibly bonded to the glass is considered aftermarket tint regardless of VLT. Drivers who install clear windshield film without written state authorisation risk citations that are difficult to dismiss.
How to obtain written state authorisation
The most reliable way to install clear windshield film legally is to obtain written authorisation from your state’s DMV or highway patrol. The process is:
- Write to the state DMV Compliance/Inspection Unit. Explain the specific film product, VLT, reflectivity, and manufacturer.
- Reference the state statute section on windshield tint. Ask whether a 70%+ VLT certified film meets compliance.
- Request the answer in writing. A phone call reply is not court-admissible.
- If approved, keep the letter in the vehicle. Laminate a copy and store with the film certification.
- If denied, do not install. A denial letter makes any subsequent citation nearly indefensible.
Alternatives if full-windshield film is not legal
- Windshield eyebrow / top-strip film — allowed above the AS-1 line in most states. See eyebrow tint strip guide.
- Interior sunshades — fold-out reflective sunshades when parked. No legal issue, reduces peak cabin temperature by 30°F+.
- Sun visor accessories — flip-down cabin-side sun visors with extended blades for glare control.
- OEM-integrated windshield films — some automakers (Tesla, Porsche, BMW) offer factory-integrated UV/IR-rejecting windshield coatings that are not aftermarket and not subject to state tint rules.
- UV-rejecting prescription or non-prescription driving glasses — a personal-protection option that does not touch the vehicle.
Quick lookup for every U.S. state
Use the table below to jump straight to any state’s tint law page. Front side VLT is the most-cited number and is shown for sedans. Deep-link into any state for the full rule, SUV differences, windshield rule, medical exemption, and the statute citation.
| State | Front side VLT | Back side VLT | Rear VLT | Medical |
|---|---|---|---|---|
| Alabama | 32% VLT or higher | 32% VLT or higher | 32% VLT or higher | Yes |
| Alaska | 70% VLT or higher | 40% VLT or higher | 40% VLT or higher | Yes |
| Arizona | 33% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Arkansas | 25% VLT or higher | 25% VLT or higher | 10% VLT or higher | Yes |
| California | 70% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Colorado | 27% VLT or higher | 27% VLT or higher | 27% VLT or higher | Yes |
| Connecticut | 35% VLT or higher | 35% VLT or higher | Any VLT allowed | Yes |
| Delaware | 70% VLT or higher | 70% VLT or higher | 70% VLT or higher | Yes |
| Florida | 28% VLT or higher | 15% VLT or higher | 15% VLT or higher | Yes |
| Georgia | 32% VLT or higher | 32% VLT or higher | 32% VLT or higher | Yes |
| Hawaii | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Idaho | 35% VLT or higher | 20% VLT or higher | 35% VLT or higher | Yes |
| Illinois | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Indiana | 30% VLT or higher | 30% VLT or higher | 30% VLT or higher | Yes |
| Iowa | 70% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Kansas | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Kentucky | 35% VLT or higher | 18% VLT or higher | 18% VLT or higher | Yes |
| Louisiana | 40% VLT or higher | 25% VLT or higher | 12% VLT or higher | Yes |
| Maine | 35% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Maryland | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Massachusetts | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Michigan | Any VLT allowed | Any VLT allowed | Any VLT allowed | Yes |
| Minnesota | 50% VLT or higher | 50% VLT or higher | 50% VLT or higher | Yes |
| Mississippi | 28% VLT or higher | 28% VLT or higher | 28% VLT or higher | Yes |
| Missouri | 35% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Montana | 24% VLT or higher | 14% VLT or higher | 14% VLT or higher | Yes |
| Nebraska | 35% VLT or higher | 20% VLT or higher | 20% VLT or higher | Yes |
| Nevada | 35% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| New Hampshire | 70% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| New Jersey | Not allowed | Any VLT allowed | Any VLT allowed | Yes |
| New Mexico | 20% VLT or higher | 20% VLT or higher | 20% VLT or higher | Yes |
| New York | 70% VLT or higher | 70% VLT or higher | 70% VLT or higher | Yes |
| North Carolina | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| North Dakota | 50% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Ohio | 50% VLT or higher | Any VLT allowed | Any VLT allowed | Unclear |
| Oklahoma | 25% VLT or higher | 25% VLT or higher | 25% VLT or higher | Yes |
| Oregon | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Pennsylvania | 70% VLT or higher | 70% VLT or higher | 70% VLT or higher | Yes |
| Rhode Island | 70% VLT or higher | 70% VLT or higher | 70% VLT or higher | Yes |
| South Carolina | 27% VLT or higher | 27% VLT or higher | 27% VLT or higher | Yes |
| South Dakota | 35% VLT or higher | 20% VLT or higher | 20% VLT or higher | Yes |
| Tennessee | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Texas | 25% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Utah | 43% VLT or higher | Any VLT allowed | Any VLT allowed | Yes |
| Vermont | Not allowed | Any VLT allowed | Any VLT allowed | Yes |
| Virginia | 50% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Washington | 24% VLT or higher | 24% VLT or higher | 24% VLT or higher | Yes |
| Washington, D.C. | 70% VLT or higher | 50% VLT or higher | 50% VLT or higher | Yes |
| West Virginia | 35% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Wisconsin | 50% VLT or higher | 35% VLT or higher | 35% VLT or higher | Yes |
| Wyoming | 28% VLT or higher | 28% VLT or higher | 28% VLT or higher | Yes |
This snapshot summarises sedan rules only. SUV, van, and pickup (MPV) rules differ in most states — see each state’s dedicated page for the full picture. All values are re-verified against primary sources for 2026 (see sources & methodology).
States where front windshield tint is actually legal — FAQ
Can I tint my full windshield anywhere in the U.S.?
Almost never. Three or four states allow certified clear non-reflective films under specific conditions. Always confirm in writing with the state before installing.
Is clear ceramic film legal on a windshield?
Generally no. Even near-invisible clear ceramic film is considered aftermarket film and violates the AS-1 rule in most states. Exceptions exist where states have explicit carve-outs.
Will police know if I have a clear windshield film?
Often yes. Trained traffic officers can recognize telltale signs of aftermarket film (edge line, slight color shift at angles). A film certification receipt in the glovebox helps when asked.
How we verified this guide
- Primary sources only. VLT limits, windshield rules, and medical exemption procedures cited in this guide are verified against each state’s statute, administrative code, or DMV publication. See our sources & methodology.
- Annual re-review. Every guide is re-read against current state law at least once a year. This page was last reviewed on January 15, 2026.
- No affiliate influence. Our rankings, recommendations, and ticket-fighting advice are never paid. See our editorial policy.
- Not legal or medical advice. Enforcement is fact-specific; always verify with your local DMV, your state statute, or a licensed attorney before acting. See the legal disclaimer and medical disclaimer.
- Report an error. Spot something wrong or outdated? Contact our editors — we publish corrections quickly and note them in our next review cycle.