How to Read a Tire DOT Code Correctly

The tire DOT code is an important identification marking printed on every tire sold for road use. Issued by transportation authorities, the DOT code helps identify the tire’s manufacturer, production plant, size, and date of manufacture. The last four digits indicate the week and year the tire was produced, making it easy to determine its age. Checking the DOT code is essential when purchasing new or used tires, as older tires may lose performance and safety over time. Vehicle owners, fleet managers, and maintenance professionals should regularly inspect tire DOT codes to ensure compliance with safety recommendations. Understanding how to read the tire DOT code helps improve road safety, supports preventive maintenance, and ensures you replace aging tires before they become a potential hazard.
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