At least 120 days for 3 or more serious traffic violations within a 3-year period involving a CMV. 1.3.4 – Violation of Out-of-Service Orders. (NTSB) reported that drowsy driving was probably the cause of more than half of accidents leading to a truck driver's death. (NTSB, 1990) For each truck driver fatality, another 3 to 4 people are
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