Can you estimate how much does a school bus weigh?

They vary by manufacturer, passenger capacity, etc. Some are under CDL weight, but still require a CDL, as they are designed to transport more than 15 persons (including the driver). The highest gross weight which a school bus would be allowed is 33,000 (35,000 in some states), as that's the max allowable weight for a two axle (steer axle and drive axle) vehicle. So you're at anywhere between 22,000 to 33,000 lbs, variables considered.

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