Northwest Territories Knowledge Test Coach
Licences and penaltiesQuestion 189 of 202

An interlock device reads a BAC of 30 mg in 100 mL of blood or higher. What happens?

  1. It records a warning and the vehicle starts
  2. It records a fail and the vehicle will not start
  3. The vehicle starts after a short wait
  4. It records a pass
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Correct answer: It records a fail and the vehicle will not start

At 30 mg or higher the device records a fail violation. The vehicle will not start.

Source: Driver's Manual: A guide to safely operate cars and light trucks (Government of the Northwest Territories, revised August 2022), Chapter 9, Alcohol Ignition Interlock Program, page 143

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Questions last reviewed: 18 October 2026