Connecticut window tint laws set the front side and back side window limit at 35% VLT under Code Section 14-99g. Reflectivity cannot exceed 27% on covered windows. The rear window carries no darkness limit once the vehicle has two working side mirrors. This guide covers the exact rules, the sticker requirement, penalties, and the medical exemption process. The controlling source is Connecticut General Statutes Title 14, Chapter 246.
Visible Light Transmission Explained
Visible Light Transmission, known as VLT, measures the percentage of outside light that passes through a window once tint film and factory glass are combined. A lower VLT number means a darker window. Connecticut law generally requires front side and back side windows to allow at least 35% VLT. This figure reflects the tint film and the glass together, not the film rating alone before installation.
Luminous Reflectance Explained
Luminous reflectance measures how much light a tinted window bounces back outward rather than letting it pass through. Connecticut law generally limits reflectance on covered windows to 27%. A highly reflective or mirror like finish can push a window past this limit even if its VLT reading otherwise looks acceptable. Reflectance and VLT are separate measurements and a compliant tint job must satisfy both standards.
The AS-1 Line
The AS-1 line is a factory etched marking near the top of most windshields. Connecticut law generally allows non reflective tint above this line on the windshield itself. Tint below the AS-1 line on the windshield is not part of the standard allowance described in this guide. The line exists because windshield visibility carries different safety considerations than side or rear window visibility.
Front and Back Side Window Rules
Connecticut General Statutes Section 14-99g generally requires front side windows to allow a total light transmission of not less than 35% plus or minus 3%. The same 35% standard, plus or minus 3%, generally applies to the right and left side windows behind the driver. Reflectance on these windows generally cannot exceed 27% plus or minus 3%. These standards apply to the windows as installed, not to the film alone.
Windshield and Reflectivity Rules
Outside of the AS-1 line allowance, Connecticut law does not generally provide a separate windshield tint allowance for the main viewing area. The reflectivity limit of 27% plus or minus 3% applies specifically to the front side and rear side windows covered by the statute. A tint installer or vehicle owner checking compliance generally needs to confirm both the transmission percentage and the reflectance percentage together, since either measurement alone does not confirm full compliance.
Passenger Vehicle Coverage
The 35% VLT and 27% reflectance standards generally apply to passenger vehicles such as sedans, coupes, and similar cars. Connecticut General Statutes Section 14-99g (Justia) sets out these standards along with the specific exceptions that remove certain windows from the rule entirely. A passenger vehicle owner generally cannot apply unlimited tint darkness to every window without qualifying for one of the statutory exceptions described below.
Multipurpose Vehicles Trucks and Buses
Connecticut law generally provides a broader allowance for the windows behind the driver on trucks, motor buses, trailers, mobile manufactured homes, and multipurpose passenger vehicles as defined under federal regulations. This generally covers most SUVs. The vehicle must be equipped with outside mirrors on the left and right sides positioned to give the driver a view of the highway for at least 200 feet to the rear for this allowance to apply.
Compliance Sticker Requirement
Connecticut law generally requires a compliance sticker on any window tinted or darkened with material applied after factory delivery. The sticker must be affixed to the lower left corner of the window and must be pressure sensitive, self destructive upon removal, and no larger than one square inch. This sticker requirement exists separately from the darkness and reflectance standards, so a driver can face a citation for a missing sticker even when the tint itself measures within the legal range.
Vehicle Inspection Process
According to the Connecticut DMV vehicle inspection and tinted window requirements page, any vehicle with an after market tint applied after factory delivery generally needs the tint tested to receive a compliance sticker. Testing generally occurs at a DMV inspection lane. Vehicles must show a light transmittance of no less than 35% plus or minus 3% during this test in order to receive the sticker confirming compliance.
Infraction Classification
A violation of the tinted window provisions under Section 14-99g is generally classified as an infraction. An infraction under Connecticut law is a civil violation punished only by a fine rather than a criminal offense. This classification generally applies to each separate violation of the relevant subsections, meaning a vehicle with multiple non compliant windows could generally face more than one infraction citation from a single stop.
Fine Range for Tint Violations
Connecticut General Statutes Section 51-164m generally governs the fine schedule for infractions under Title 14, which includes window tint violations. This statute generally sets fines for most Title 14 infractions at not less than $50 and not more than $90, with the presiding judge setting the exact amount within that range. According to the Connecticut General Statutes governing infraction fine schedules, additional court costs may apply on top of the base fine amount.
Correction Period and Impoundment Risk
A person cited for a tint violation generally must remove the non compliant material and report to the issuing police department within 60 days to demonstrate compliance through a vehicle inspection. If a person fails to report within this window and is cited again for the same violation, Connecticut law generally allows the vehicle to be impounded after notice and an opportunity for a hearing. This correction process applies specifically to violations of the obstruction and tint darkness provisions.
Rear Window and Side Mirror Exception
Connecticut law generally exempts the rearmost window from the 35% VLT standard when the vehicle carries outside mirrors on both the left and right sides positioned to give the driver a view of the highway for at least 200 feet behind the vehicle. This exception generally means a passenger car can carry a fully dark rear window once dual side mirrors are installed and functioning, separate from any exception tied to vehicle body type.
Medical Exemption Process
According to the Connecticut DMV, a driver with a qualifying medical condition may generally request an exemption allowing darker front window tint than the standard 35% VLT limit. The exemption generally permits tint measuring between 32% and 20% VLT depending on the documentation provided. A tint reading below 20% VLT generally fails the exemption measurement outright and triggers referral to the DMV Medical Review Unit for further review rather than automatic approval.
Applying for the Medical Exemption
A driver seeking this exemption generally must submit written documentation from a physician or optometrist licensed in Connecticut supporting the medical necessity for darker tint. The DMV Commercial Vehicle Safety Division generally validates the request after the vehicle passes a tint measurement at a DMV inspection lane. Once validated, the driver generally must carry the approved form in the vehicle at all times rather than displaying a standard compliance sticker.
Myth Rear Windows Cannot Be Tinted Dark
A common misconception holds that Connecticut bans dark rear window tint entirely. This is generally inaccurate. The statute generally exempts the rearmost window from the 35% VLT standard once the vehicle has functioning dual side mirrors, and it generally provides a similar allowance for windows behind the driver on trucks, buses, trailers, and multipurpose passenger vehicles regardless of mirror configuration in several of those vehicle categories.
Myth There Is No Medical Exemption Available
Some sources circulating online generally claim Connecticut offers no medical exemption for window tint, while others generally describe the exemption using a single flat percentage. Neither description is accurate based on official DMV guidance. The DMV generally authorizes exemption tint measuring between 32% and 20% VLT depending on the physician’s supporting documentation, with the exact permitted darkness tied to that specific certification. Connecticut lawmakers have also generally considered legislation that would increase the tint violation fine range beyond current statutory limits, though any such proposal remains pending and does not reflect the current fine schedule described in this guide. A driver comparing tint percentages against the standards described here should generally rely on the current statute and the DMV’s own published guidance rather than unofficial summaries, since sourcing errors are common in this specific legal niche. Anyone facing an active citation or considering a modification that pushes close to these limits can review the Disclaimer for context on how this information applies.
Disclaimer
This article is for general informational purposes only. It is not legal advice. Lawwalls publishes informational content only and does not provide legal services or legal advice.
For legal advice about your specific situation contact a licensed attorney in your state. Laws change and vary by jurisdiction. Verify current rules with official government sources or a qualified lawyer.