• Employees in a safety-sensitive function are subject to the company’s DOT drug and alcohol testing program.

A “safety-sensitive function” is much more than just driving. Safety-sensitive functions include almost all on-duty time, including all time spent:

• At an employer or shipper’s plant, terminal, facility, or other property, or on any public property, waiting to be dispatched, unless the driver has been relieved from duty;
• Inspecting, servicing, or conditioning any commercial motor vehicle (CMV) at any time;
• At the driving controls of a CMV in operation;
• In or upon any CMV, except resting in a sleeper berth;
• Loading or unloading a vehicle, supervising or assisting in the loading or unloading, attending a vehicle being loaded or unloaded, remaining in readiness to operate the vehicle, or in giving or receiving receipts for shipments loaded or unloaded; and
• Repairing, obtaining assistance, or remaining in attendance upon a disabled vehicle.