The DOT symbol certifies the tire manufacturer’s compliance with U.S.Department of Transporta-tion(U.S.DOT)tire
safety performance stan-dards.Next to these letters is the tire identification number(TIN)-also known as the tire”serial” number. The first two digits are the factory code indicating where the tire was made.The last four digits are numbers identifying the week and year of manufacture (Example:”0316″means the trird week of the year 2016).Other characters in between the first four and last four are optional manufacturer’s codes for tire type, make, etc.All tires produced after September 2009 must have the full TIN on the intended outboard side of the tire and at least a partial TIN on the intended inboard side. The partial TIN does not include the date code.
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