What is the legal blood alcohol concentration limit for driving?

In Washington, the legal blood alcohol concentration (BAC) limit for driving is 0.08. This means that if you are pulled over and your BAC tests higher than 0.08, you can be charged with a DUI. Driving under the influence of alcohol and/or drugs is illegal in Washington and the rest of the United States. The legal BAC limit for underage drivers, those under 21 years old, is zero. Any trace of alcohol in an underage person’s system can result in a DUI conviction, so young drivers should exercise extreme caution when drinking. Washington also has stricter limits for commerical drivers, such as truck drivers. Commercial drivers must maintain a BAC of 0.04 or lower while operating a vehicle. Washington has a zero-tolerance policy for driving under the influence of drugs. If you are pulled over and officers suspect you are driving while impaired, they may ask you to take a drug test. For qualifying drugs, such as marijuana, the BAC limit is 5 nanograms per milliliter of blood. It should be noted that, depending on your age and type of license, the BAC limit may be lower than 0.08. Regardless, it is important to always be aware of your BAC when driving and abide by the law.

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