What range of Blood Alcohol Concentration (BAC) typically indicates impaired driving risk?

The range of Blood Alcohol Concentration (BAC) that typically indicates impaired driving risk is generally associated with noticeable effects on motor skills and judgment. While many jurisdictions establish 0.08 as the legal limit for driving, impairment can begin at lower levels. A BAC in the range of 0.10-0.20 reflects significant impairment in both physical and cognitive abilities. Specifically, at this level, drivers may experience severe impairment in coordination, judgment, and other essential driving skills, greatly increasing the risk of accidents.

In this context, BAC levels above 0.10 demonstrate a clear link to heightened impairment that can compromise safe driving. It is crucial to recognize that even lower BAC levels (like those in the options for 0.05-0.08) can still pose risks, but the more severe impairments typically manifest at the higher ranges indicated. This understanding is vital for law enforcement and public safety initiatives aimed at reducing the risks associated with impaired driving.