Ontario G Road Test Training · Question
What is the legal BAC limit for a fully licensed driver in Ontario?
In Ontario, the provincial Highway Traffic Act sets the legal blood alcohol concentration limit for fully licensed drivers at 0.05, which is the exact threshold
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Question: What is the legal BAC limit for a fully licensed driver in Ontario?
Answer options:
- 0.00
- 0.04 ✅ 0.05
- 0.08
Correct answer: 0.05
Explanation: In Ontario, the provincial Highway Traffic Act sets the legal blood alcohol concentration limit for fully licensed drivers at 0.05, which is the exact threshold where the "warn range" begins and immediate administrative penalties, such as roadside suspensions, apply. While 0.08 is the federal criminal limit, Ontario enforces penalties starting at 0.05. The 0.00 option is incorrect because a zero-tolerance limit applies only to novice drivers and those aged 21 or under, whereas 0.04 has no legal significance under Ontario law. Knowing the distinction between novice limits and the fully licensed warn range is a highly testable concept on the G1 exam.
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Question explanations
- What does an inverted (upside-down) red and white triangle mean?
- A yellow diamond-shaped sign is used to indicate what?
- What does a circular sign with a red border and diagonal line through a black 'P' indicate?
- You are driving in Edmonton and see a flashing amber light on a school bus. What action must you take?
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