Washington Permit Test: Alcohol & Drugs Practice Questions

BAC limits, implied consent and DUI penalties.
Question 1
For a driver age 21 or older, what blood alcohol concentration (BAC) is considered DUI in Washington?
Question 2
A driver under 21 faces DUI consequences at what blood alcohol concentration?
Question 3
For a driver 21 or older, how much active THC in the blood is considered DUI?
Question 4
For a driver under 21, how much active THC in the blood can lead to DUI consequences?
Question 5
Under Washington's Implied Consent Law, what have you agreed to by driving in the state?
Question 6
If you refuse an alcohol or drug test, how long could you lose your driving privilege?
Question 7
You are sitting in a parked car with the ability to start it after drinking. Can you be charged with DUI?
Question 8
How long do alcohol- and drug-related offenses stay on your Washington driving record?
Question 9
Which of these can be part of a DUI conviction in Washington?
Question 10
A DUI conviction can suspend your driving privileges for how long?
Question 11
Where may an opened container of alcohol or cannabis be carried in a vehicle?
Question 12
Under the open container law, who commits a traffic infraction by drinking alcohol in a vehicle on the road?
Question 13
Recreational cannabis is legal for adults 21 and over in Washington. When is it legal to drive after using it?
Question 14
What is the most common impairing substance involved in impaired driving crashes?
Question 15
What is polydrug use, and why does it matter for drivers?

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Practice questions are written from official driver handbooks. Always check your state DMV for current rules.
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