According to NHTSA research cited in the AAMVA CDL Manual, approximately how many police-reported crashes occur each year in the U.S. due to drowsy driving?

AAMVA CDL Manual (nhcdm.pdf) Section 2.11.2, p. 2-25; tested per 49 CFR 383.111(a)(20)

This statistic underscores why fatigue management is treated as seriously as alcohol or distraction in commercial driving. Professional drivers face higher fatigue risk than average motorists because of long hours, irregular schedules, and time-pressured deliveries, making this one of the most consequential topics on the exam.