Are Rear Window Stickers Illegal?
Short answer: no. Stickers are not banned. Obstructing your rearview is — and there is a clear line between the two.
Ontario's Highway Traffic Act (s.73) prohibits material objects that block the driver's view. The right sticker type — perforated vinyl, clear vinyl, or a partial corner decal — is fully legal and passes vehicle safety inspections.
What Ontario Law Actually Says
Ontario's Highway Traffic Act, s.73(1) states that no person shall drive a motor vehicle with any object or material that obstructs the driver's view to the front or sides. A related provision requires that the driver maintain a clear rearview through the vehicle's mirrors or rear window.
The law targets obstruction of vision, not stickers as a category. A solid decal covering 90% of your rear glass could be cited. A 4" corner logo in the lower-right of your rear window is not a meaningful obstruction and is uniformly accepted by police and safety inspectors.
The practical bright line: if the driver can still see traffic behind the vehicle through the mirror or glass, the sticker is not an obstruction. Perforated vinyl satisfies this requirement even at full rear-window coverage, because the driver sees clearly through the micro-perforations from the inside.
Legal Rear Window Sticker Options
These are the sticker types that comply with Ontario's HTA and pass vehicle safety inspections.
Perforated Vinyl
One-way vision film — full graphic visible from outside, driver sees through it from inside. The go-to for full rear-window coverage.
Shop rear window decals →Corner & Partial Decals
Small to medium die-cut or rectangle stickers placed in the lower corners or edges of the rear glass — well clear of the driver's direct sightline.
Shop car decals →Clear Vinyl Decals
Transparent background — only your design is visible. Minimal visual impact on rearview. Ideal for logos, handles, and minimalist graphics.
Shop window stickers →Full-Coverage Solid Vinyl
Opaque sticker covering most or all of the rear glass. Legal ambiguity increases with coverage — may be cited under HTA s.73 if it materially obstructs the driver's rearview.
Legal Rear Window Decals — Shop Now
All products below are suitable for rear window use and comply with Ontario's HTA visibility requirements. Printed in Ontario, ships across Canada.
The Quick Rules — At a Glance
- ✓Stickers are NOT banned — obstructed rearview IS.
- ✓Perforated vinyl at full coverage = legal (driver sees through it).
- ✓Corner decals and partial graphics = legal in every province.
- ✓Clear vinyl decals = legal (transparent, no solid obstruction).
- ✓Solid opaque sticker covering most of the rear glass = risk of HTA citation.
- ✓Vehicle safety inspectors look for materially impaired rearview — not stickers per se.
Frequently Asked Questions
Frequently asked questions
Are rear window stickers illegal in Ontario?‹
No — stickers themselves are not illegal. Ontario's Highway Traffic Act (s.73) prohibits obstructing the driver's view. A small corner decal or perforated rear-window vinyl that allows a clear sightline from the driver's seat is fully legal.
Can you put stickers on your rear windshield in Canada?‹
Yes. Canadian federal regulations and provincial highway traffic acts permit rear window stickers provided they do not obstruct the driver's required field of vision. Solid stickers covering the majority of the rear glass may fail a vehicle-inspection check if the officer determines visibility is materially reduced.
How much of the rear window can I cover with a sticker?‹
Ontario's HTA does not specify a percentage. The test is whether the obstruction materially impairs the driver's ability to see traffic behind the vehicle. Corner stickers and partial graphics away from the driver's direct sightline are routinely accepted. Full-coverage solid graphics that eliminate all direct rearview are the category most likely to draw a defect notice.
Is perforated vinyl legal for rear windows in Canada?‹
Yes. Perforated vinyl (one-way vision or perf vinyl) lets the driver see through the graphic from inside the vehicle. It delivers a bold full-coverage look from outside while maintaining adequate rearview visibility — the most popular legal option for rear-window graphics.
Will a rear window sticker fail my Ontario safety inspection?‹
A solid sticker that substantially covers the rear glass can be flagged as a defect under safety standards inspection. Perforated vinyl and partial-coverage decals applied to the lower corners or sides of the rear glass are unlikely to be cited. When in doubt, leave the centre sightline clear.