Manufacturers do not test every new vehicle offered for sale. They are only required to test one representative vehicle—typically a preproduction prototype—for each combination of loaded vehicle weight class, transmission class, and basic engine.
Some vehicles are exempt from these requirements:
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Motorcycles
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Large vehicles with a gross vehicle weight rating (GVWR) over 8,500 pounds, such as larger pickup trucks and SUVs (GVWR is the weight of the vehicle, all fluids, and its maximum carrying capacity)
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