New Jersey window tint laws do not set a percentage limit for front side windows. Instead New Jersey Code Section 39:3-74 generally prohibits any aftermarket tint on the windshield and front side windows. Back side windows and the rear window may carry tint of any darkness. A general violation may result in a fine up to $100, while separate medical exemption violations carry fines up to $1,000 for a first offense. This guide covers exceptions, enforcement, and a 2022 court ruling that shaped how the law is applied.
Key Terms Defined
Understanding New Jersey tint law starts with a few core terms that competitors often explain poorly or skip entirely. Visible Light Transmission, the AS-1 line, and the difference between tint rules and safety glazing rules all shape how the statute applies. Readers who understand these terms can follow the rest of this guide without confusion and can better evaluate any tint quote or installer claim against the actual legal standard.
Visible Light Transmission
Visible Light Transmission, commonly called VLT, describes the percentage of light that passes through a vehicle’s glass and any applied film together, not the film alone. A lower VLT percentage means a darker overall window, while a higher VLT percentage means more light passes through. This combined measurement matters because factory glass already blocks some light before any aftermarket film is added, which can affect whether a finished window meets a legal standard.
The AS-1 Line
The AS-1 line is a marking positioned near the top of a vehicle’s windshield, and it defines the only area where a non-transparent strip is generally permitted under New Jersey window tint laws. Material applied above this line, within the top six inches of the windshield, typically does not violate the tint restriction. Material extending below the AS-1 line onto the main windshield surface generally falls outside what New Jersey Code Section 39:3-74 allows for ordinary drivers.
Safety Glazing Material Versus Tint Rules
New Jersey Code Section 39:3-75 addresses safety glazing material, a separate legal category concerned with glass quality, cracking, and injury risk rather than tint darkness. Courts and enforcement officers have at times treated this section as though it also governed tint percentage, which it does not. This distinction matters for anyone researching New Jersey window tint laws, since citing the wrong statute leads to inaccurate expectations about what is actually regulated.
What the Law Says
New Jersey window tint laws apply differently depending on which window is involved, and the windshield and front side windows face the strictest treatment. Back side windows and the rear window are treated far more permissively. Readers researching New Jersey window tint laws should treat the front and rear of the vehicle as governed by two very different standards rather than one uniform percentage that applies across every window.
Windshield Rules
Under New Jersey Code Section 39:3-74, the windshield itself may only carry a non-reflective strip within the top six inches, at or above the AS-1 line. No tint or film is generally permitted on the main windshield surface below that line for an ordinary driver. This rule exists regardless of vehicle type, meaning sedans, SUVs, and passenger trucks all face the identical windshield restriction under current law.
Front Side Window Rules
Front side windows, meaning the driver and front passenger windows, are generally not permitted to carry aftermarket tint at all under New Jersey Code Section 39:3-74. This is a critical point because many sources describe a 70% VLT allowance for front side windows, and that figure does not appear in the current statute. The only lawful darkening on these windows comes from qualifying factory-applied glass, a medical exemption, or law enforcement use, covered later in this guide.
Back Side and Rear Window Rules
New Jersey window tint laws are considerably more permissive for the back side windows and the rear window. These windows may carry film of any darkness level, meaning there is no minimum VLT percentage that back side or rear glass must maintain. This distinction is one reason many drivers assume the same flexibility applies to front windows, when in fact the front and rear of the vehicle are governed by different rules entirely.
Who It Applies To
New Jersey window tint laws apply based on the vehicle’s registration state and its classification, not on the driver’s personal preference or the vehicle’s manufacturer. The rules described in this guide come from state statute and apply uniformly once a vehicle is registered in New Jersey. Out of state registration can change which state’s rule is enforced, which is addressed directly below.
Passenger Vehicles and SUVs
New Jersey Code Section 39:3-74 applies the same windshield and front side window restrictions to sedans, SUVs, vans, and passenger trucks alike. There is no separate, more permissive front window standard for larger vehicles under this statute. Back side and rear window rules are also uniform across vehicle classes, so an SUV owner and a sedan owner face identical legal obligations for every window position under current New Jersey window tint laws.
Out of State Registered Vehicles
A vehicle registered in another state generally follows that home state’s tint law rather than New Jersey’s statute, even while driving through New Jersey. This means a New York or Pennsylvania registered vehicle with tint compliant with its home state’s rules may not automatically violate New Jersey window tint laws while passing through. Local enforcement practices can still vary, so registration status remains a meaningful factor in how a tint related stop is handled.
Exceptions and Limitations
New Jersey window tint laws include a limited set of exceptions that allow tint on the windshield or front side windows outside the general prohibition. These exceptions cover factory installed glass, a documented medical condition, and law enforcement vehicles. Understanding these exceptions matters because they explain the only lawful paths to darker front window glass under New Jersey Code Section 39:3-74.
Factory Applied Tint
Tint or film applied by the vehicle manufacturer before the sale of the vehicle is treated differently from aftermarket film under New Jersey Code Section 39:3-74. Manufacturer applied material on the windshield or front side windows is generally permitted when it allows a light transmittance of less than 70% VLT, except for the top six inches above the AS-1 line. This exception is specific to manufacturer installed glass and does not extend to film added later by an installer or the vehicle owner.
Medical Sun Screening Exemption
New Jersey Code Section 39:3-75.1 authorizes a medical exemption program for vehicle owners or lessees whose vehicle transports someone with a qualifying ophthalmic or dermatologic photosensitivity condition. The application process is overseen by the New Jersey Motor Vehicle Commission and generally requires physician certification submitted with an official state form. More detail on this program is available through the NJ MVC window sun-screening for medical reasons page, which outlines the current application steps.
Law Enforcement Vehicles
New Jersey Code Section 39:3-74 includes a specific exception permitting tinted material on vehicles used solely for law enforcement purposes. This exception exists separately from the manufacturer glass exception and the medical exemption program, and it does not extend to personal vehicles owned by law enforcement personnel outside of official use. This narrow carve out reflects operational needs rather than a general relaxation of the statute for any particular group of drivers.
Penalties or Consequences
New Jersey window tint laws carry more than one penalty structure, and confusing them is one of the most common mistakes in tint related research. A general violation of the tint and windshield rule under Code Section 39:3-74 is treated differently from a violation connected to the medical exemption program under Code Section 39:3-75.3. Readers should treat these as two separate legal tracks with two separate consequences.
General Tint Violation Fine
A general violation of New Jersey Code Section 39:3-74, meaning unauthorized tint on the windshield or front side windows without a qualifying exception, may result in a fine not exceeding $100. This penalty applies to the core tint and windshield obstruction rule itself rather than to the separate medical exemption regulations. Some sources describe much higher fines for ordinary tint violations, and those figures typically come from a different statute described next.
Medical Exemption Program Violations
New Jersey Code Section 39:3-75.3 sets a distinct penalty structure specifically for violations connected to the medical sun screening exemption program, such as failing to follow the program’s regulatory requirements. These violations may result in a fine not exceeding $1,000 for a first offense and not exceeding $5,000 for a second or subsequent offense. This penalty structure is separate from the general tint fine and should not be presented as the standard penalty for an ordinary front window tint violation.
How Enforcement and Vehicle Stops Work
In State v. Smith, decided in 2022, the New Jersey Supreme Court held that tinted rear windshield glass alone did not support reasonable and articulable suspicion for a vehicle stop under the relevant statutes. The court further clarified that Code Section 39:3-75 addresses safety glazing quality rather than tint darkness, meaning it does not independently justify a stop based on how dark a window appears. This ruling narrowed how law enforcement can rely on tinted glass alone when initiating a traffic stop.
Common Misconceptions
Several widely repeated claims about New Jersey window tint laws do not match the current statute, and correcting them is central to understanding how the law actually works. These misconceptions often come from outdated information, confusion between separate statutes, or conflation with rules used in neighboring states. The two most significant misconceptions are addressed individually below.
The 70% VLT on Front Windows Myth
A widely repeated claim states that New Jersey permits 70% VLT tint on front side windows, similar to rules used in some neighboring states. This claim does not reflect the current statute, which generally does not permit aftermarket tint on front side windows at all, aside from the manufacturer glass, medical, and law enforcement exceptions described earlier. The 70% figure appears connected to a proposed but never enacted legislative bill rather than to New Jersey’s actual current law.
Confusing the Tint Statute With the Safety Glazing Statute
New Jersey Code Section 39:3-74 and Code Section 39:3-75 are frequently cited together as though they impose a single combined standard for tint darkness. The New Jersey Supreme Court has clarified that Section 39:3-75 governs glass quality and cracking risk, not tint percentage, meaning it should not be treated as a second darkness limit layered on top of Section 39:3-74. Laws and enforcement practices may change, and this statute remains under active legislative review, so verifying current rules with official state sources before installing tint or citing a specific fine remains important. For general questions about how this article’s information is intended to be used, readers can review the Disclaimer below.
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.