Intoxalock – Ignition Interlock Company (United States)
- 1-866-501-3649
- November 9, 2026
ALCOLOCK Canada is the interlock brand of Alcohol Countermeasure Systems (ACS), a Toronto-based company that makes and services ignition interlock devices. The Ontario government lists ALCOLOCK Canada as one of the two approved interlock providers in Ontario, and the Government of Newfoundland and Labrador names Alcolock as the interlock service provider for its program. ALCOLOCK also lists service centres across Nova Scotia (including Dartmouth, Bedford, Truro, Kentville and Sydney), New Brunswick (Bathurst, Moncton, Sussex, Fredericton and Edmundston, with installation by its contractor Safeside Atlantic) and Prince Edward Island (Summerside and Cornwall), as well as in Yukon and the Northwest Territories.
Atlantic Canada appointments: 1-877-658-6374
After your licensing agency confirms you can enter the interlock program, you book an installation with the provider. The device is downloaded and calibrated on a regular schedule, and the results go to the province. Installation, monthly monitoring and removal fees are paid by the driver.
Ask about the nearest service centre, appointment wait times and the full cost of your program. Your province sets the rules, so confirm what you need with your licensing agency.
An ignition interlock is a breath-testing device wired into your vehicle’s ignition. Before the engine starts you give a breath sample, and the device asks for random retests while you drive. If it detects alcohol above the program limit, the vehicle will not start and the result is reported to your provincial licensing agency.
Each province runs its own program. Your licensing agency (for example the Ministry of Transportation in Ontario, RoadSafetyBC, SGI or the SAAQ) tells you when you are eligible and how long the device must stay in. Only the approved provider for your province can install a device that counts toward your requirement.
An interlock usually follows an impaired driving charge or roadside suspension. Talk to a local impaired driving lawyer through our network of provincial directories, and see each site’s free page on addiction help and treatment.
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