Idaho · Alcohol, Drugs & Impairment
For drivers 21 and older, Idaho's legal BAC limit is:
- .05%
- .08%
- .15%
- .10%
Correct answer
.08%
Why this is correct
Correct answer: .08%. Source: Idaho Driver's Manual, page 131. Topic: Alcohol & Drugs.
Idaho Driver Handbook, p. 131

