Canada’s window tint laws are set province by province, not nationally, so a legal setup in one part of the country can earn you a ticket in another. The common pattern: the windshield and front side windows must let at least 70 percent of visible light through, while rear side windows and the back glass can be tinted to any darkness as long as the vehicle has working exterior mirrors on both sides. Manitoba is more permissive on front glass, Alberta is stricter, and several provinces ban aftermarket film on the windshield entirely.
Provincial Tint Limits at a Glance
“VLT” stands for visible light transmission, the percentage of light that passes through the glass. A higher VLT number means a lighter window.
British Columbia
No film, spray, or other material may drop the windshield or driver-side windows below 70 percent VLT. Rear side windows and the back window can be tinted to any level if both exterior mirrors are functional. A tinted visor strip is allowed within the top 75 millimetres of the windshield.1BC Laws. Motor Vehicle Act Regulations – Division 7A – Glazing
Alberta
Alberta is the strictest. The Vehicle Equipment Regulation prohibits installing, replacing, or covering the windshield or any side window beside or forward of the driver with any material, whether transparent, translucent, or opaque. Even a very light aftermarket film is illegal on front glass regardless of VLT. Rear windows can be tinted if both exterior mirrors are present. Any material that reflects headlamp light or sunlight into other drivers’ eyes is separately banned.2Alberta. Vehicle Window Tint Exemption
Saskatchewan
Any sunscreen or reflective coating on side windows or the windshield is banned unless the glass manufacturer applied it. A narrow sunscreen strip within 75 millimetres of the top of the windshield is the only exception. In practice, aftermarket tint of any shade is illegal on the front side windows and the main area of the windshield.3Government of Saskatchewan. Saskatchewan Code V-2.1 REG 10 – The Vehicle Equipment Regulations, 1987
Manitoba
The most permissive province for front tint. Front side windows must maintain at least 50 percent VLT. A tinted visor strip is allowed on the top 12.7 centimetres of the windshield, provided the strip still allows at least 25 percent light transmission. Manitoba is also the only province that permits reflective tint on side windows, capped at 35 percent reflectivity.
Ontario
The Highway Traffic Act does not name a VLT percentage. Section 73 prohibits any material on the windshield or side windows that obstructs the driver’s view, along with any coloured spray or coating that obscures visibility. Police routinely apply a 70 percent VLT benchmark during roadside checks, and a visor strip across roughly the top 75 millimetres is generally accepted.4Government of Ontario. Highway Traffic Act, RSO 1990, c H.8
Quebec
The Highway Safety Code prohibits coating the windshield or front side windows with any substance that reduces visibility from inside or outside the vehicle. The SAAQ requires at least 70 percent light transmission on the windshield and front side windows, measured by photometer. A tinted strip on the top 15 centimetres of the windshield is allowed. Rear windows can be tinted freely with dual exterior mirrors.5Société de l’assurance automobile du Québec. Handcrafted, Modified or Rebuilt Vehicle – Tinted Windows
Nova Scotia
Spraying, coating, or covering the windshield or the windows to the immediate left or right of the driver with any substance that reduces light transmission is prohibited. Glass tinted during manufacturing is explicitly exempt, so darker factory windows remain legal. Clear frost shields are also allowed. Rear windows can be tinted to any degree with dual mirrors.6Government of Nova Scotia. Standards of Vehicle Equipment Regulations
New Brunswick
Any coloured, opaque, or reflective material on the windshield or front side windows that prevents more than 30 percent of light from passing through in either direction is banned, which works out to a 70 percent minimum VLT. The law separately prohibits material that substantially obscures the vehicle’s interior from outside.7Government of New Brunswick. New Brunswick Motor Vehicle Act
Prince Edward Island and Newfoundland and Labrador
Both provinces prohibit aftermarket tinting on the windshield and front side windows. Rear window tinting is permitted with functional side mirrors on both sides.
Yukon, Northwest Territories, and Nunavut
The territories generally follow the stricter provincial models: front side windows must remain free of aftermarket film, and rear windows are usually exempt with dual mirrors. Regulation text for the territories is harder to access than provincial regulations, so drivers heading north should confirm current rules with the local motor vehicle office before traveling.
Windshield Visor Strips
Most provinces that ban aftermarket tint on the windshield still allow a narrow tinted band across the very top of the glass, often called a visor strip or sun strip. The permitted width varies:
- British Columbia: 75 mm from the top.1BC Laws. Motor Vehicle Act Regulations – Division 7A – Glazing
- Saskatchewan: 75 mm from the top.3Government of Saskatchewan. Saskatchewan Code V-2.1 REG 10 – The Vehicle Equipment Regulations, 1987
- Manitoba: 12.7 cm, with at least 25 percent VLT in the strip.
- Ontario: roughly 75 mm as accepted practice, though the statute does not specify a measurement.
- Quebec: 15 cm from the top.5Société de l’assurance automobile du Québec. Handcrafted, Modified or Rebuilt Vehicle – Tinted Windows
- Alberta: no visor strip allowed; all aftermarket material on the windshield is banned.2Alberta. Vehicle Window Tint Exemption
A gradient shade band applied at the factory is treated as manufacturer glazing and is not subject to the visor strip rules, which apply only to material added after purchase.
Reflective and Mirror-Finish Films
Almost every province bans reflective tint because of the glare it throws at oncoming drivers, particularly at night. Alberta specifically prohibits any material that reflects headlamp light or sunlight into other drivers’ eyes, and New Brunswick bans reflective material on front glass.7Government of New Brunswick. New Brunswick Motor Vehicle Act
Manitoba is the only exception, allowing reflective side-window tint up to 35 percent reflectivity. Reflective film is still banned on the Manitoba windshield and rear window. Anywhere else, assume a mirror-finish film is illegal.
Factory Tint Versus Aftermarket Film
Factory-tinted glass has colour or UV-blocking properties built in during manufacturing. Aftermarket film is a polyester layer applied to the surface of existing glass after you buy the car. Provincial regulations target the aftermarket layer, not the factory glass.
Nova Scotia’s regulation says outright that the ban on light-reducing substances does not apply to windows tinted during manufacture.6Government of Nova Scotia. Standards of Vehicle Equipment Regulations Saskatchewan restricts coatings “other than that applied by the glass manufacturer.”3Government of Saskatchewan. Saskatchewan Code V-2.1 REG 10 – The Vehicle Equipment Regulations, 1987 A vehicle that came from the factory with darker-than-usual front glass is typically legal even when an identical shade of aftermarket film would not be.
If an officer’s meter reads below the legal threshold, saying “it’s factory tint” only helps if the glass still shows its original AS markings and has no aftermarket layer on top. Officers can often feel the edge of applied film with their fingers or spot bubbling and seams that factory glass does not have.
Medical Exemptions for Darker Tint
Several provinces let drivers with specific medical conditions apply tint darker than the standard rules allow. Conditions like lupus, porphyria, severe photosensitivity, and certain post-surgical light sensitivities can qualify. The process generally requires a letter or certificate from a licensed physician or dermatologist describing the condition and why reduced light exposure while driving is medically necessary.
Alberta runs a formal exemption program: drivers apply through the provincial government and must document the medical or physical condition that justifies the exemption.2Alberta. Vehicle Window Tint Exemption Other provinces handle exemptions less formally, sometimes through a physician’s letter kept in the vehicle and presented during traffic stops. Keep the documentation in the car at all times. An exemption issued in one province does not automatically carry into another, so anyone driving interprovincially should confirm whether their home exemption is recognized at the destination.
Testing, Fines, and Removal Orders
Officers use a photometer, sometimes called a VLT meter, to measure how much light passes through the glass. The device clamps onto the window and produces an immediate reading, which leaves little room for argument at the roadside.
If the test fails, you can expect a provincial offence ticket and an order to remove the film within a set period. Penalties vary:
- Ontario: fines up to $500, and illegal tint will fail a safety certification inspection.4Government of Ontario. Highway Traffic Act, RSO 1990, c H.8
- Quebec: an officer who suspects non-compliant tint can require a formal inspection by an authorized agent. Not going for the inspection carries fines of $438 to $865. If the inspection confirms illegal tint, you have 48 hours to remove it, and driving without removing it can add fines of $154 to $274 per offence.5Société de l’assurance automobile du Québec. Handcrafted, Modified or Rebuilt Vehicle – Tinted Windows
- Other provinces: initial fines generally run $100 to $200, with escalating penalties for ignoring a removal order.
Ignoring a removal order can lead to registration suspension and, in extreme cases, the vehicle being pulled off the road. Professional tint removal usually runs $100 to $300 depending on how many windows are involved, so the total cost of a single stop climbs quickly once the fine, removal, and any re-inspection fees are added together.
Crossing Provincial Borders
There is no reciprocity for window tint in Canada. You are governed by the province you are driving in, not the province where the vehicle is registered. A car with 50 percent VLT on the front side windows is legal in Manitoba and immediately ticketable across the Saskatchewan or Ontario line. Officers in border areas are familiar with the pattern and check for it.
If your route regularly crosses provinces, the safe approach is to meet the strictest standard along it. For most cross-country driving that means keeping front side windows at 70 percent VLT or higher and putting no aftermarket film on the windshield. Rear windows are much less of a concern, since every province allows darker tint behind the driver as long as both exterior mirrors are present and working.