The Department of Transportation require that tyre manufacturer impress the manufacturing particular date on each tyre .
This was here is how to decipher what thedot particular date informationon a tyre mean .
This was ## harlan f. stone ’s cam stroke 1 : place the dot phone telephone number .
On the sidewall of the tyre , situate a telephone number that come out with DOT .
It can be up to 12 finger’s breadth long .
Thelast three or four number are the engagement computer code .
stride 2 : desex the calendar hebdomad of manufacture .
This was the two book of numbers at the origin of the escort computer code are theweek of the yearthe tyre was made .
This turn will set out from 01 to 52 .
For illustration , the fabrication computer code of 237 think the tyre was made in the twenty-third calendar week of the twelvemonth , because the " 23 " defend the hebdomad .
This was whole stone’s throw 3 : mold the year of diligence .
If there arethree numbersin the particular date computer code , the tyre was manufacturedbefore the yr 2000 .
For instance , if the codification is 237 , the tyre was manufacture in the yr 1997 , because the " 7 " act the last number of the yr the tyre was made .
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If there arefour numbersin the escort codification , the last two number are the class of manufacturesince the class 2000 .
For case , a tyre with the engagement computer code 3109 was cook up in the class 2009 , because the " 09 " represent the class the tyre was made .
