In California, what is the legal blood alcohol concentration limit for drivers 21 and over?

Answer: B — 0.08%

The legal blood alcohol concentration (BAC) limit for drivers aged 21 and over in California is 0.08%. This means that a driver is considered to be legally intoxicated if their BAC measures 0.08% or higher. This standard is a critical part of California's drinking and driving laws, aimed at enhancing road safety and reducing accidents related to alcohol consumption. Drivers under 21 are subject to a zero-tolerance policy, which means any detectable alcohol in their system can result in penalties. Additionally, professional drivers or those operating vehicles requiring a special class of license may face stricter limits. Understanding this legal limit is essential for drivers to ensure they remain within safe and legal bounds when consuming alcohol.