DOT Serial Number on Tires

The "DOT" symbol certifies the tire manufacture's compliance with the U.S. Department of Transportation tire safety standards. The DOT serial number is located on the lower sidewall of the tire, on one side only. Below is a description of the serial number. Starting in the year 2000, four numbers are used for the Date of Manufacture, first two numbers identify the week and the last two numbers identify the year of manufacture. Prior to year 2000 three numbers are used for the Date of Manufacture, first two numbers identify the week and the last number identifies the year of manufacture. To identify tires manufactured in the 90's a decade symbol (a triangle on its side) is located at the end of the DOT serial number.

For Example: DOT NJ HR 2AE2 529

529

Date of Manufacturer, example: 529 (52nd week of 1999) or 5200 (52nd week of 2000).

2AE2

Tire Type Code (coding for type of tire optional by manufacture).

HR

Tire Size Code Number.

NJ

Manufactures Plant Identification Code

DOT

Reference Symbol (certifies the tire manufactures compliance with U.S. Department of Transportation tire safety standards).