By Chathura Prasad , Logistics and Transport Researcher | Updated November 7, 2026 | 18-minute read | Written for U.S. truck drivers, owner-operators and new CDL holders How this guide was prepared: The weight limits, inspection levels and disqualification rules below were checked against the federal sources listed in the Sources and Further Reading section at the end. Scale rules, hours and fines differ by state and change over time, so always confirm with the state agency that runs the scale and follow the posted sign. This is research-based information, not legal advice. Spotted something outdated or wrong? Tell me through the Contact page and I will correct it. I t is 2:40 a.m. on an interstate somewhere between two state lines. You have been rolling for six hours, the coffee is gone, and a green-and-white sign appears out of the dark: “Truck Scales 1 Mile.” Under it, a second sign with two lights. One says OPEN. One says CLOSED. Right now, neithe...
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