WASHINGTON — The U.S. Department of Transportation issued 65 new DOT plant identification codes in the past year for tire factories worldwide, including five for plants in the U.S. and 35 for plants ...

Every tire has a Department of Transportation serial number–something like DOT DBUA A44 414 GCD 415. The last three digits tell you the week and year the tire was made, so 415 means the 41st week of ...

While the colored lines found on new tires are optional, follow along to see what they mean, and why they are there.

If you want more information: The complete list of all tire makers' DOT codes is available for purchase to download in Excel format from the Tire Business Online Data Store. The Excel file includes ...

Almost every tire and certainly any you should be looking at, new or used, will have a series of numbers and letters on its sidewall that can tell you just about everything you need to know about that ...