Washington State DOL Knowledge Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

If you are over age 21, your BAC must be below what level to avoid a DUI arrest?

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0.08

In Washington State, the legal blood alcohol concentration (BAC) limit for drivers aged 21 and over is set at 0.08%. This means that if your BAC is at or above this level, you can be arrested for driving under the influence (DUI). This standard is consistent with laws in many other states and is based on extensive research indicating that individuals with a BAC of 0.08% are significantly impaired in their ability to operate a vehicle safely.

For individuals with a BAC below 0.08%, while it is generally considered safe to drive, it's important to note that any level of alcohol can affect driving ability to some extent. Even at lower BAC levels, drivers can still be arrested for DUI if they exhibit signs of impairment. Therefore, maintaining a BAC below 0.08% is crucial for avoiding legal consequences related to impaired driving.

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