Commercial drivers are typically held to a lower legal limit for alcohol concentration than noncommercial drivers, and federal and state rules reflect that reduced threshold. In Mississippi, commercial drivers may face administrative and disqualification consequences at lower blood alcohol concentrations, and employers and licensing agencies often treat these results more severely. Understanding the specific numeric threshold requires review of current state regulations and the circumstances of the stop, including whether the stop occurred during work duties or commercial operations. Because rules change and outcomes depend on the facts, it is important to review the testing records and the context of the arrest. Differences between breath and blood test results, device calibration, and timing of sample collection can all influence how a measurement is interpreted by administrative agencies and courts in Lucedale. Drivers should obtain full testing documentation to evaluate potential defenses and to understand consequences under Mississippi law.