包含涉及大型卡车和巴士的联邦报告碰撞事故数据，依据《美国法典》第49篇第390.5部分（涉及商用机动车辆，且造成死亡、需现场外治疗的伤害或因严重损坏导致拖移的事故）。该信息由各州向FMCSA报告。

Contains data on large trucks and buses involved in Federally reportable crashes as per Title 49 U.S.C. Part 390.5 (crashes involving a commercial motor vehicle, and that either involve a fatalities, injury requiring treatmentaway from the scene of the crash, or a tow-away due to disabling damage). This information is reported by the States to FMCSA.