What is the legal limit for blood alcohol concentration (BAC) for commercial drivers in Massachusetts?

Answer: B — 0.04%

In Massachusetts, the legal limit for blood alcohol concentration (BAC) for commercial drivers is 0.04%. This lower limit reflects the increased responsibility and potential hazards associated with operating a commercial vehicle, which may include buses, trucks, or other vehicles designed for transporting passengers or cargo. Due to the larger size and weight of commercial vehicles, as well as the potential risk to public safety, stricter regulations are in place. A BAC of 0.04% is established to help prevent accidents and ensure that drivers remain alert and capable of handling the vehicle safely. In contrast, the legal limit for non-commercial drivers is higher, at 0.08%. This distinction emphasizes the rigorous standards required for those operating commercial vehicles and serves to enhance road safety overall.