What does ARS 28-1381A.4 define?

The definition established by ARS 28-1381A.4 specifically addresses DUI offenses involving commercial driver's license (CDL) holders. Under this statute, commercial drivers are held to a stricter standard compared to those with regular licenses, with a blood alcohol concentration (BAC) threshold of 0.04% or higher constituting a DUI. This differentiation acknowledges the heightened responsibility and potential public safety risks associated with operating commercial vehicles, which often carry cargo or passengers.

Understanding this provision is vital, as it emphasizes how DUI laws vary based on the type of license held and reinforces the importance of adhering to more stringent limits for commercial drivers.