Aurora Windshield Tint Laws: Colorado Regulations Explained

Window tint is popular among Aurora drivers for good reason. At 5,400 feet elevation, the UV radiation in Aurora is significantly stronger than at sea level, and Colorado's 300+ days of sunshine mean that sun glare is a constant driving hazard. However, Colorado law places strict limits on windshield tint specifically, and understanding these regulations is important both for legal compliance and when getting your windshield replaced.

Colorado Windshield Tint Law: The Basics

Colorado Revised Statutes section 42-4-227 governs vehicle window tinting throughout the state, including Aurora. Here are the key provisions that apply to windshields:

• Windshield tint strip: Colorado allows a non-reflective tint strip along the top of the windshield. This strip must not extend below the AS-1 line -- the line marked on most windshields by the glass manufacturer, typically about 4 to 5 inches from the top of the glass.
• No full windshield tint: Applying tint film across the entire windshield surface is illegal in Colorado. The windshield must allow at least 70% of light to pass through (known as 70% VLT -- Visible Light Transmission).
• No reflective tint: The windshield tint strip must be non-reflective. Metallic or mirrored tint films are not permitted on the windshield.

Colorado Tint Laws by Window Position

VLT = Visible Light Transmission. Lower percentage = darker tint.

Medical Exemptions in Colorado

Colorado does allow medical exemptions for darker windshield tint. If you have a medical condition that requires protection from UV light -- such as lupus, photosensitivity, or certain skin conditions -- you can apply for a medical exemption through the Colorado Department of Revenue. The exemption requires a physician's letter documenting your condition and the specific tint level recommended. If approved, you must carry the exemption certificate in your vehicle at all times.

Aurora police will still pull you over if your tint appears too dark, but presenting a valid medical exemption certificate resolves the situation without a citation.

Factory Tint vs. Aftermarket Tint

Many modern vehicles come with factory-installed windshield tint, particularly in the top strip area. This factory tint is built into the glass during manufacturing and always meets Colorado's legal requirements. When your windshield is replaced, the replacement glass will include the factory tint band if the original did. You do not need to specify this -- OEM and OEE replacement glass matches the original glass specifications, including any built-in tint.

Aftermarket tint films are applied to the glass surface after installation. If you had an aftermarket tint strip on your old windshield, you will need to have it reapplied after replacement. Your windshield provider can often coordinate with a local tint shop to have the tint applied after the adhesive fully cures (24 to 48 hours after replacement).

Windshield Replacement and Tint: What to Know

When getting your windshield replaced in Aurora, tint comes up in several common scenarios:

• Matching factory tint: OEM and OEE glass typically matches the factory tint level and shade. If your original windshield had a green or blue-tinted shade, the replacement will be similar.
• Solar control glass: Some newer vehicles (particularly luxury brands) use infrared-rejecting windshield glass that blocks heat without appearing dark. This glass is available as a replacement option, though it costs more than standard glass.
• Re-applying aftermarket tint: If you had aftermarket tint film on your windshield, wait at least 48 hours after replacement before having tint reapplied. The adhesive needs full cure time before any film is applied to the glass surface.
• ADAS and tint compatibility: If your vehicle has a forward-facing camera for ADAS systems, aftermarket tint film in the camera area can interfere with the system. Only apply tint below the camera bracket to avoid calibration issues.

Penalties for Illegal Tint in Aurora

Aurora police can issue citations for illegal windshield tint. The fine for a tint violation in Colorado is typically $50 to $100, plus a requirement to remove the illegal tint. If you are pulled over and the officer measures your tint and it does not comply with the 70% VLT requirement for windshields, you may receive a fix-it ticket that requires you to remove the tint and provide proof of compliance within a specified timeframe.

For Aurora drivers looking to reduce sun glare legally, the best option is a quality windshield tint strip within the AS-1 line combined with polarized sunglasses. UV-blocking windshield glass (which is clear but blocks UV rays) is another legal alternative that provides sun protection without the visibility reduction of dark tint.

UV Protection: Why It Matters at Aurora's Elevation

At Aurora's elevation of 5,400 feet, UV radiation is approximately 25% stronger than at sea level. This increased UV exposure affects both the vehicle's interior (fading upholstery and dashboards) and the driver's skin. Modern windshield glass, including standard OEE replacement glass, blocks approximately 95% of UVA rays and 99% of UVB rays, providing significant protection even without additional tint. This built-in UV protection is maintained when your windshield is replaced with quality glass. For more on glass quality options and pricing, see our cost guide.