What is the legal limit for blood alcohol concentration (BAC) for drivers over the age of 21 in Virginia?

In Virginia, the legal limit for blood alcohol concentration (BAC) for drivers over the age of 21 is set at 0.08%. This means that if a driver's BAC is 0.08% or higher, they are considered legally impaired and may be charged with driving under the influence (DUI).

This standard is based on extensive research indicating that at this level of alcohol in the bloodstream, a person's ability to operate a vehicle safely is significantly compromised. Motor functions, reaction time, and judgment skills all decline as BAC increases, which heightens the risk of accidents and endangers the driver and others on the road.

Other options represent lower limits that do not apply to drivers over the age of 21 in Virginia. While a BAC of 0.02% or 0.05% might indicate some impairment, it is not the threshold for legal intoxication. Meanwhile, a BAC of 0.10% exceeds the legal limit, meaning that individuals with such a concentration would also be subject to DUI penalties. Understanding this regulation is crucial for promoting safe driving practices and ensuring that all drivers are aware of their legal responsibilities regarding alcohol consumption and driving.