Long-distance haulers are truck drivers who transport goods over long distances. They are also known as semi-truck drivers, as they typically drive semi-trucks, which are large trucks with a trailer attached. Semi-trucks are used to transport large amounts of cargo, such as food, furniture, and other goods, over long distances. Long-distance haulers must have a valid commercial driver's license and be able to drive for long periods of time. They must also be knowledgeable about the laws and regulations related to their job.