What is the maximum blood alcohol content (BAC) for commercial drivers?

The maximum blood alcohol content (BAC) for commercial drivers is set at 0.04%. This standard is significantly lower than the legal limit of 0.08% for non-commercial drivers, reflecting the heightened responsibility and the potential risks associated with operating large vehicles. The regulations are in place to ensure that commercial drivers maintain a higher level of alertness and control, given the impact that even small amounts of alcohol can have on their ability to safely operate a truck. This stricter limit helps enhance safety not just for the driver but for all road users, as commercial vehicles are typically much larger and heavier, making them more challenging to maneuver and stop compared to personal vehicles.