Window tint laws in Ontario (2026)

The rules, window by window

Windshield

No coloured spray, coloured coating, or reflective material on the windshield that substantially obscures the interior when viewed from outside, or that obstructs the driver's view. The statute sets a qualitative standard only; no numeric VLT threshold or explicit top-strip allowance appears in the Highway Traffic Act text.

The standard in the law's own words

Coloured spray, coloured coating, or reflective material on the windshield or on the window to the direct left or right of the driver's seat is prohibited if it 'substantially obscures the interior of the motor vehicle when viewed from outside the motor vehicle' (HTA s.73(3)). This is a qualitative 'substantially obscures' test, not a measured percentage.

Color restrictions

No coloured spray, coloured coating, or reflective material on the windshield or on windows to the direct left or right of the driver's seat if it substantially obscures the interior when viewed from outside (s.73(3)); separately, no colour coating that obstructs the driver's own view of the highway (s.73(2)).

Medical exemption

No medical exemption provision found in Highway Traffic Act s.73 or s.74. Not confirmed either way from a primary source in this pass.

Enforcement

Section 73(4) exempts signs, markers, or equipment required under the Act or regulations. Section 74 separately requires the windshield and side windows to afford the driver a clear view.

Notes

Widely repeated aggregator claims (e.g. a flat 2017 windshield tint ban for road use, a 70% front-side VLT minimum, '30% tint is darkest legal') are NOT in the law that governs driving: Highway Traffic Act s.73 is a qualitative 'substantially obscures the interior' standard with no percentage, and the full current consolidated text of the Equipment regulation (R.R.O. 1990, Reg. 587) contains no tint, glazing, or light-transmittance provision at all (verified against the complete official e-Laws text). Where numeric-style tint criteria DO exist in Ontario is the safety-inspection regime: R.R.O. 1990, Reg. 611 (Safety Inspections) incorporates an inspection standard whose Section 8 items 13(e) and 14(e) set requirements for windshield and side-window tinting, applicable only to vehicles manufactured on or after July 1, 2011 - these govern passing a safety standards certificate inspection (e.g. when a used vehicle changes hands), not roadside enforcement, and are the likely origin of the aggregator numbers. For road use: rear side windows and the rear window are not covered by s.73(3) (limited to the windshield and windows to the direct left or right of the driver), so they are effectively unrestricted by that section, subject to s.74's 'clear view' requirement and mirror equipment.