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Difficulty: EasyBlood Alcohol Concentration (BAC) Limits and Thresholds

A 25-year-old driver is operating a standard personal passenger sedan on a public roadway. Under standard traffic safety laws, what is the maximum Blood Alcohol Concentration (BAC) limit at or above which this driver is legally considered impaired per se?

  1. A
    0.04%0.04\%
  2. 0.08%0.08\%Answer
  3. C
    0.02%0.02\%
  4. D
    0.10%0.10\%

Answer

The legal Blood Alcohol Concentration (BAC) threshold for an adult non-commercial driver aged 21 or older operating a personal vehicle is 0.08%0.08\%.
For non-commercial drivers aged 21 and older operating a standard personal passenger vehicle, standard traffic safety law establishes a Blood Alcohol Concentration (BAC) threshold of 0.08%0.08\% as the legal definition of per se impairment.

Step-by-Step Solution

1
Identify the driver category and vehicle type
The driver is 25 years old (adult aged 21+) operating a standard personal passenger automobile (non-commercial).
Statutory BAC limits vary based on age group (under 21 vs. 21+) and vehicle classification (commercial vs. non-commercial).
2
Apply the statutory BAC per se limit for adult non-commercial drivers
The legal threshold is established at 0.08%0.08\%.
Traffic safety statutes establish 0.08%0.08\% as the maximum allowable BAC level for adult non-commercial drivers before automatic per se impairment applies.

Key Concept

Statutory Blood Alcohol Concentration (BAC) legal limits for adult non-commercial drivers.
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Topics

Blood Alcohol Concentration (BAC) Limits and Thresholds

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