Match each driver status or situation on the left with its corresponding statutory Blood A… — DMV Permit Practice Test

Match each driver status or situation on the left with its corresponding statutory Blood Alcohol Concentration ( $BAC$ ) limit or legal rule on the right.

Standard adult driver aged 21 or older operating a personal passenger vehicleStandard illegal threshold of $0.08\%$ $BAC$
Underage driver under 21 years of age operating any motor vehicleZero Tolerance threshold ( $0.01\%$ to $0.02\%$ $BAC$ limit)
Commercial driver operating a commercial motor vehicle requiring a CDLStricter commercial threshold of $0.04\%$ $BAC$

Answer

The standard adult driver pairs with the

0.08\%

BAC

limit, the underage driver pairs with the Zero Tolerance limit (

0.01\%

0.02\%

), and the commercial driver pairs with the

0.04\%

BAC

limit.

Different driver categories are governed by specific statutory BAC thresholds: standard adult non-commercial drivers are limited to less than

0.08\%

, underage drivers face Zero Tolerance limits at

0.01\%

–

0.02\%

, and commercial drivers operating commercial vehicles are held to the

0.04\%

standard.

Step-by-Step Solution

Identify the standard legal limit for adult drivers.

Adult non-commercial drivers aged 21+ have a statutory limit of

0.08\%

BAC

Driving regulations establish

0.08\%

as the threshold for per se impaired driving for standard passenger vehicle operators.

Identify the legal limit for drivers under 21 years of age.

Underage drivers are subject to Zero Tolerance (

0.01\%

–

0.02\%

BAC

Zero Tolerance provisions aim to prevent youth alcohol consumption and driving by enforcing near-zero allowable limits.

Identify the legal limit for commercial driver license holders operating a commercial vehicle.

Commercial vehicle drivers have a stricter limit of

0.04\%

BAC

Due to the size and potential hazard of commercial vehicles, commercial drivers are held to a stricter safety standard.

Key Concept

Statutory BAC Limits by Driver Category

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

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