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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).
In the absence of LC 50 data on the poisonous (toxic) constituent substances, the mixture may be assigned a packing group and hazard zone based on simplified threshold toxicity tests. When these threshold tests are used, the most restrictive packing group and hazard zone must be determined and used for the transportation of the mixture.
"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 ...
These unmonitored chemicals are so toxic California advised cannabis enforcement agents to wear hazmat suits and respirators during field inspections, and to undergo annual blood poisoning tests ...
Illegal dumping in an area just off the New Jersey Turnpike. In the 1970s, landfills throughout the United States began to refuse the acceptance of hazardous wastes for the protection of property, the environment, and liability from what would later become known as Superfund sites, which dramatically increased the cost of disposal. [2]
Nearly two weeks after the Eaton fire forced Claire Robinson to flee her Altadena home, she returned, donning a white hazmat suit, a respirator and goggles. The L.A. wildfires left neighborhoods ...