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6-1. Specifications
6
Vehicle specifications
Typical DOT and tire identification number (TIN)
DOT symbol*
Tire Identification Number
(TIN)
Tire manufacturer’s
identification 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.
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 tire or all season tire (→P. 456)
An all season tire has M+S on the sidewall. A tire not marked M+S
is a summer tire.