Conquer the DOT Certification Challenge 2026 – Drive Your Success!

The highest acceptable A1c for certification is 10%. This threshold is established as a maximum limit to ensure that individuals with diabetes are managing their condition adequately while still being able to meet the required health standards for certification. A1c, which reflects average blood glucose levels over the past two to three months, is a key indicator of blood sugar control.

Having an A1c level at or below 10% indicates that the individual's diabetes is likely under some level of control, reducing the risk of complications that could arise from higher blood sugar levels. Levels above this benchmark might indicate insufficient management of diabetes, which can lead to serious health risks, affecting both the certified individual and those around them, especially in safety-sensitive positions.

The other options represent A1c levels that may suggest poorer glucose control and a higher risk of complications, making them unacceptable for certification purposes.