Which provinces permit radar detectors?
British Columbia, Alberta and Saskatchewan permit them. Saskatchewan excludes commercial vehicles. Ontario, Quebec, Manitoba, Nova Scotia, the territories and the remaining provinces prohibit detectors.
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Guide
Is a Radar Detector Legal in Canada? Provincial Rules Explained
There is no single yes-or-no answer for every Canadian road: legality depends on the province and, in Saskatchewan, vehicle class.
Check each province on your route
A detector permitted at the start of a journey may be prohibited after a border crossing. Review every province and territory on your route before carrying or transporting a device.
Read the rule for the exact device
Statutes may define prohibited equipment by its purpose, including warning a driver about speed-measuring equipment. Do not assume a different product name or a stealth feature avoids a restriction.
Treat GPS features separately
GPS camera databases and radar receivers use different mechanisms. Legal treatment can depend on the actual device and jurisdiction, so check official rules rather than assuming all warning features are equivalent.
Common questions
Questions before you buy
Is a radar detector legal in Canada?
Only in British Columbia, Alberta and Saskatchewan, and not in commercial vehicles in Saskatchewan. It is prohibited in Ontario, Quebec, Manitoba, Nova Scotia, the territories and the remaining provinces.
Can I use a radar detector in Ontario?
No. Ontario’s Highway Traffic Act prohibits driving on a highway in a vehicle equipped with, carrying or containing a speed measuring warning device.
Are radar detectors legal in Quebec?
No. Quebec’s Highway Safety Code prohibits installing or bringing a speed radar detector into a road vehicle.
Can commercial vehicles use radar detectors in Saskatchewan?
No. The stated permission does not extend to commercial vehicles in Saskatchewan. Confirm current provincial rules before travel.
Sources and how we chose
- Ontario Highway Traffic Act, section 79 · 2026-10-15
- Manitoba Highway Traffic Act, section 203 · 2026-10-15
- Québec Highway Safety Code, sections 251–253 · 2026-10-15
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