What is the legal blood alcohol concentration limit for a CDL holder operating their personal vehicle?

The legal blood alcohol concentration (BAC) limit for a commercial driver's license (CDL) holder operating a personal vehicle is 0.08%. This standard is established by federal regulations and applies to all drivers, including those who hold a CDL, when they are driving non-commercial vehicles.

For CDL holders, it's crucial to understand that even though 0.08% is the limit for personal vehicles, they are subject to stricter regulations while operating commercial vehicles, where the BAC limit is 0.04%. Maintaining a BAC at or below 0.08% when operating a personal vehicle ensures compliance with both state and federal laws, helping to promote safety on the road. Understanding this limit is vital for maintaining a valid CDL and ensuring public safety.