Cicerone Certified Beer Server Practice Exam

What blood alcohol content level defines driver intoxication in the United States, Canada, and the UK?

1. 0.05%

2. 0.08%

3. 0.10%

4. 0.12%

The correct answer is: 0.08%

In the United States and Canada, a blood alcohol content (BAC) level of 0.08% is the legal threshold for defining driver intoxication. This standard means that if an individual's BAC is at or above this level, they are considered legally impaired and may face penalties such as fines, license suspension, or even incarceration for driving under the influence. In the UK, the legal limit is slightly different, but 0.08% is commonly recognized in many jurisdictions within the UK as well. This level is based on extensive research linking higher BAC levels to a greater risk of accidents, diminished motor skills, and impaired judgment, making it a widely accepted criteria across these regions. The other measurements provided, such as 0.05%, 0.10%, and 0.12%, correspond to thresholds found in some regions or may be seen as lower or higher limits in varying contexts, but they are not the primary legal thresholds for intoxication in the United States, Canada, or the UK. Thus, 0.08% stands as the definitive standard for intoxication for drivers in these major English-speaking areas.