Michigan allows semi-trucks with as many as 11 axles and dozens of wheels, enabling those trucks to carry roughly twice the weight of a typical 18-wheel tractor-trailer because Michigan counts truck and trailer weight differently than federal rules.
The State of Michigan reports that about two-thirds of freight tonnage in the state moves by truck, and the state's long history of state-level regulation—dating back to the early 20th century—left a patchwork of size and weight limits across the U.S.
Michigan's rules permit larger and heavier truck configurations than many other states, reflecting the state's reliance on trucking to move freight while maintaining state-specific size and weight regulations. Motorists in Michigan may encounter configurations uncommon elsewhere, such as rigs with 11 axles and dozens of wheels.
Read the full article at theautopian.com.
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