OTR truck drivers, or "over the road" truck drivers, transport goods and materials long distances, usually across different states. As an OTR owner-operator, you are self-employed and own the vehicle you use to transport loads. Your job duties are to haul heavy freight, machinery, and equipment safely to their destinations. You might spend several weeks on the road at a time, with average shifts lasting three weeks. Because you own your truck, you are responsible for routine maintenance and any necessary repairs to ensure it stays in good running condition. Other responsibilities include obeying traffic laws surrounding freight trucks, checking in at weighing stations when needed, and maintaining a log of each mile you travel.