Median hourly earnings of light or delivery services truck drivers were $11.48 in 2002. The middle 50 percent earned between $8.75 and $15.57 an hour. The lowest 10 percent earned less than $7.03, and the highest 10 percent earned more than $20.68 an hour. Median hourly earnings in the industries employing the largest numbers of light or delivery services truck drivers in 2002 were as follows:
 

Median hourly earnings of driver/sales workers, including commission, were $9.92 in 2002. The middle 50 percent earned between $6.98 and $14.70 an hour. The lowest 10 percent earned less than $6.07, and the highest 10 percent earned more than $19.60 an hour. Median hourly earnings in the industries employing the largest numbers of driver/sales workers in 2002 were as follows:
 

As a general rule, local truck drivers receive an hourly wage and extra pay for working overtime, usually after 40 hours. Employers pay long-distance drivers primarily by the mile. Their rate per mile can vary greatly from employer to employer and may even depend on the type of cargo. Typically, earnings increase with mileage driven, seniority, and the size and type of truck driven. Most driver/sales workers receive a commission based on their sales in addition to an hourly wage.

Most self-employed truck drivers are primarily engaged in long-distance hauling. Many truck drivers are members of the International Brotherhood of Teamsters. Some truck drivers employed by companies outside the trucking industry are members of unions representing the plant workers of the companies for which they work.