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  2. Commercial driver's license - Wikipedia

    en.wikipedia.org/wiki/Commercial_driver's_license

    A commercial driver's license is required to operate a tractor-trailer for commercial use. A commercial driver's license (CDL) is a driver's license required in the United States to operate large and heavy vehicles (including trucks, buses, and trailers) or a vehicle of any size that transports hazardous materials or more than 15 passengers (including the driver).

  3. UN Recommendations on the Transport of Dangerous Goods

    en.wikipedia.org/wiki/UN_Recommendations_on_the...

    "Dangerous goods" (also known as "hazardous materials" or "HAZMAT" in the United States) may be a pure chemical substance (e.g. TNT, nitroglycerin), mixtures (e.g. dynamite, gunpowder) or manufactured articles (e.g. ammunition, fireworks). The transport hazards that they pose are grouped into nine classes, which may be subdivided into divisions ...

  4. Driver's licenses in the United States - Wikipedia

    en.wikipedia.org/wiki/Driver's_licenses_in_the...

    This restriction is issued when a driver either fails the air brake component of the general knowledge test or performs the CDL road skills test in a vehicle not equipped with air brakes. M: CDL-A holders may operate CDL-B school buses only. N: CDL-A and CDL-B holders may operate CDL-C school buses only. O: Driver limited to pintle hook ...

  5. Hazardous Materials Transportation Act - Wikipedia

    en.wikipedia.org/wiki/Hazardous_Materials...

    Each person who offers transportation of hazardous materials must describe the material on accompanied shipping papers. The papers must include— an identification number; a proper shipping name, identified in the Hazardous Materials Table; the hazard class; the packing group, identified in Roman numerals; the total quantity of hazardous materials

  6. Work-related road safety in the United States - Wikipedia

    en.wikipedia.org/wiki/Work-related_road_safety...

    Federal Motor Carrier Safety Regulations: This body of regulations cover all aspects of large truck and bus operations in the United States: the commercial driver's license (CDL) program, oversight of companies that transport freight or passengers, transport of hazardous materials, conditions under which a vehicle or a driver may be ...

  7. Truck classification - Wikipedia

    en.wikipedia.org/wiki/Truck_classification

    Commercial operation of a Class 8 vehicle in the United States requires either a Class-B CDL for non-combination vehicles, or a Class-A CDL for combination vehicles (tractor-trailers). [32] Industries that generally use Class 8 trucks are long-distance freight transportation, construction, and heavy equipment moving.