This volume covers all unintentional injuries. One section is devoted to motor vehicles. Here it is reported that between 1912 and 2003, motor-vehicle deaths per 10,000 registered vehicles were reduced 94%, from 33 to about 2. In 1912, there were 3,100 fatalities when the number of registered vehicles totaled only 950,000. In 2003, there were 44,800 fatalities, but registrations soared to 240 million. This section presents motor-vehicle unintentional injury statistics in the following categories: deaths due to motor-vehicle accidents, 2003; type of motor-vehicle accident; estimating motor-vehicle crash costs; state laws; safety belt use in the United States, 2000-2003; alcohol; occupant protection; deaths and death rates by day and night; motor-vehicle accidents by time of day and day of week; type of motor vehicle; school bus transportation; age of driver; sex of driver; pedestrians; pedalcyclists; work zone deaths and injuries; senior transportation safety and mobility; motor-vehicle deaths and rates; motor-vehicle deaths by type of accident; motor-vehicle deaths by age; and motor-vehicle death rates by age.