At what blood alcohol level may a commercial driver be placed out of service for 24 hours?

A commercial driver can be placed out of service for 24 hours if their blood alcohol concentration (BAC) is at or above 0.01%. This strict limit reflects the high standards of safety and responsibility expected from commercial drivers. Given the critical nature of their job, any detectable amount of alcohol raises concerns about their ability to operate a vehicle safely.

It's important to note that while some states and regulations set a higher threshold for intoxication, in the context of commercial driving, even a minimal presence of alcohol can lead to immediate consequences, including being placed out of service. This standard is primarily designed to ensure the safety of passengers, other roadway users, and the drivers themselves.