The four VLT figures in VicRoads VSI 2

VLT stands for visible light transmittance, the share of visible light that passes through a window. VSI 2 is the guideline under Regulation 35 of the Road Safety (Vehicles) Regulations 2021, which treats film on a window as a modification. For a passenger vehicle the requirements are:

• Windscreen: a minimum of 70 percent VLT under Australian Design Rule 8, and no film anywhere on it except the visor band.
• Windows to the side of and ahead of the driver: a resulting VLT of 35 percent or more.
• Windows behind the driver: a resulting VLT of 20 percent or more, provided the vehicle has at least one rear vision mirror on each side.
• Reflectance: no window with film may reflect more than 10 percent, which VicRoads calls the same as untreated glass.

Resulting means the reading through glass plus film, not the figure on the roll. Film outside these numbers makes the vehicle non-compliant, the status that leads to a defect notice.

Why a 35 percent film can still be illegal on your car

Factory glass is rarely clear. VicRoads notes that the glazing on many new vehicles is made with a slight tint, so a film that measures 35 percent on its own reads lower once it sits on glass that already blocks light. The fix is a lighter film on the front doors, and a careful installer meters the bare glass before quoting a shade.

Privacy glass is the harder case. Many SUVs and utes leave the factory with darkened rear glass, usually marked TINTED, S3 or V. VSI 2 says that if a factory tinted window already sits below the required VLT, no film may be applied to it, and the prohibition covers clear films too. A dark-glass Toyota or Mazda SUV can usually still take film on the front doors, where the glass is lighter, while the rear glass stays as delivered.

Can you tint the windscreen in Victoria?

No, apart from the visor band. VSI 2 allows a tinted band of less than 70 percent VLT either above the wiper arc area or within the top 10 percent of the glass, whichever is greater. The rest stays as the manufacturer supplied it, and a darker windscreen is only acceptable when the glass was tinted at the factory.

The guideline adds a point that matters on a modern car: the band must not obscure any sensor or camera mounted inside the windscreen. Lane keeping cameras and rain sensors on a Tesla, a Hyundai or a Kia sit exactly where a careless band would go.

Utes, vans and 4WDs: the rule behind the driver changes

VSI 2 treats vehicles built mainly to carry goods, and light buses, differently behind the driver. On those vehicles, windows above or behind the driver’s seat have no minimum VLT at all, as long as a rear vision mirror is fitted to each side. The front doors and the windscreen keep the same 35 and 70 percent figures as a passenger car.

The guideline does not spell out which dual cab utes qualify as goods vehicles, so that is a question for a licensed vehicle tester rather than a tint shop. For a Ford or Toyota ute that already wears privacy glass, the outcome is usually the same as a passenger car: film on the front doors to match the rear, factory glass left alone behind. A 4WD heading onto gravel often pairs the tint with stone chip protection on the bonnet and guards.

What happens if your tint fails: defect notices and roadworthy

Victoria Police and the Department of Transport and Planning can issue a vehicle defect notice to a vehicle that does not comply. The notice shows a prohibit time, after which the car cannot be driven on the road, and it has to be cleared within 28 days or the registration is suspended. Clearing it means fixing the problem, then either a roadworthy certificate from a licensed vehicle tester, valid for 30 days, or an inspection at a VicRoads Customer Service Centre, plus a clearance fee.

For tint, the repair is removal. Old film comes off with heat and patience, the adhesive on the demister lines last of all. We strip illegal tint, clean back to bare glass and refit a legal shade in one visit, which is also the route for a car bought interstate with darker film than Victoria permits. Film outside the VSI 2 figures can also surface at the roadworthy inspection needed to sell or transfer the car, with no officer involved.

Dark is not the same as cool: choosing film inside the limit

VicRoads itself points out that factory glass already blocks most UV, and that a tint film can raise cabin temperature by holding heat inside. Both warnings describe cheap dyed film, and they are the reason to choose by technology rather than shade: within the 35 percent limit, the heat you feel is mostly infrared, and films differ a great deal in how much they reject.

• 3M Color Stable, from $495 fitted: nano carbon film that does not turn purple, rejecting up to 57 percent of total solar energy and 99 percent of UV. This is the tint in our new car protection package from Pack 3, fitted at the darkest legal shade by default.
• 3M Ceramic IR, from $595: nano ceramic particles absorb infrared heat, metal free, so GPS, toll tags and phone signal are untouched. The usual pick for a black Mercedes or BMW that lives outdoors.
• 3M Crystalline, from $750: more than 200 optical layers in a film thinner than a sticky note, rejecting up to 97 percent of infrared and 60 percent of total solar energy while staying almost clear. The answer when the factory glass is already tinted and there is little VLT left to spend.
• Defcon CoolVue: the ceramic from Defcon Films Australia with the highest total heat rejection we fit, with clarity that holds in low evening sun.

Every 3M film here carries a lifetime warranty against colour change, bubbling and peeling, and the work is done in-house at Mitcham, usually within the day. Keep the windows up for two to three days after fitting while the adhesive cures. The full routine is on our aftercare page, alongside the care rules for ceramic coating and paint protection film.

Glass roofs and EVs

The VSI 2 diagrams mark the windscreen, the side glass and the rear window. Roof glass does not appear in them, which makes the panoramic roof on a Tesla, BYD or Polestar a comfort decision rather than a VLT one. The options are a roof tint or Defcon Crystal Shield, a clear protection film that cuts heat soak and adds a strike face against falling stones, without changing the look.

Questions owners ask about tint laws in Victoria

Is 20 percent tint legal in Victoria?

Only on windows behind the driver, and only when the vehicle has a rear vision mirror on each side. Front door glass must stay at 35 percent VLT or more.

What is the darkest legal tint for front windows in Victoria?

A resulting reading of 35 percent VLT through glass and film together. On factory glass with a slight tint that means a film rated lighter than 35 percent.

My car already has privacy glass. Can I add film?

On the front doors, usually yes, because front glass is lighter. On rear glass that already reads below 20 percent, VSI 2 forbids any film, including clear film.

Can you tint the front windscreen in Victoria?

Not below the visor band. A band of less than 70 percent VLT is allowed above the wiper arc or across the top 10 percent, whichever is greater, provided it clears every camera and sensor behind the glass.

Will illegal tint fail a roadworthy?

Film outside the VSI 2 figures makes the vehicle non-compliant, so expect a problem at inspection and a possible defect notice on the road. Removal and a legal refit clears it.

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