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9-1. Specifications
9
Vehicle specifications
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL”
is a bias-ply tire.
Summer tires or all season tires (P. 288)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S”
is a summer tire.
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer’s identifica-
tion mark
Tire size code
Manufacturer’s optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that
the tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
Typical DOT and Tire Identification Number (TIN)
9
1
2
3
4
5
6
7