What is actually legal on your vehicle: 35% on the front sides, darker rear glass since 2025, the AS-1 windshield line, and the films that are not allowed at all.
Window film is rated by VLT β visible light transmission, the percentage of light that passes through the glass with the film on it. A lower number is a darker film: 5% is limo dark, 70% is nearly invisible.
Hawaii's core rule under HRS Β§291-21.5 is that front side windows β the two beside the driver and front passenger β must transmit at least 35% VLT. That applies to every private vehicle regardless of body style, and it has not changed.
What did change is the rear. Act 129, signed on 29 May 2025, removed the old split that held sedans to 35% all the way round while letting SUVs, trucks and vans go dark behind the driver. Rear glass rules are now the same for every body style.
| Window | Sedan / coupe | SUV / truck / van |
|---|---|---|
| Windshield | 70% VLT minimum, non-reflective (a nearly clear ceramic film qualifies). | 70% VLT minimum, non-reflective. |
| Front side windows | 35% VLT or lighter | 35% VLT or lighter |
| Rear side windowsUpdated 2025 | Any darkness, with dual side mirrors | Any darkness |
| Rear windshieldUpdated 2025 | Any darkness, with dual side mirrors | Any darkness |
| Reflectivity | No mirrored or metallic film (max 35% reflectivity) | No mirrored or metallic film (max 35% reflectivity) |
A lower number is a darker film. The 35% mark is the legal limit for front side windows in Hawaii.
5%
Limo dark. Rear glass only.
Rear only
15%
Very dark. Strong privacy at the rear.
Rear only
20%
Close to factory privacy glass.
Rear only
35%
The legal front limit in Hawaii.
Legal in front
50%
Light. Subtle, still cuts glare.
Legal in front
70%
Nearly clear. The windshield option.
Legal in front
Swatches are illustrative only β film looks different on real glass, which is why we put samples on your vehicle before you choose.
What we fit on most Big Island vehicles, and why.
Legal, and where the heat gain is on a morning commute. A quality ceramic at 35% rejects far more infrared than a cheap dark film β darkness and heat rejection are not the same thing.
Now available on any body style under Act 129, with working side mirrors. Good for privacy and for passengers, and it matches the factory privacy glass many trucks and SUVs already have.
A nearly invisible ceramic film over the full windshield. It is the largest piece of glass on the vehicle and it points at the sky, so it removes more heat than any other single upgrade.
Hawaii recognises that some medical conditions require more protection from sunlight than the standard limits allow, and provides an exemption path. It is granted by the state, not by a tint shop β no installer can authorise darker film on your behalf. Start with your physician, then bring us the documentation and we will install to exactly what it permits. We cannot give medical advice, and we will not install below the legal limit without it.
Summarized from the Hawaii statute as amended in 2025. Laws change and enforcement varies β Midnight Tint Kona installs legal shades, issues the compliance certificate at install, and can advise on your exact vehicle. Medical exemptions exist.
This page is a plain-language summary, not legal advice. The rear-glass rules changed in 2025 and enforcement practice is still settling, so we confirm the current requirement against your specific vehicle before any film is cut.
Bring us the vehicle and we will show you samples on your own glass, confirm what is legal for your body style, and talk through where a darker rear makes sense.
