372
6-1. Specifications
DOT and Tire Identification Number (TIN) (P. 372 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which
form the plies in a tire.
Load limit at maximum cold tire inflation pressure (P. 273)
Maximum cold tire inflation pressure (P. 366)
This means the pressure to which a tire may be inflated.
Location of treadwear indicators (P. 270)
Summer tires or all season tires (P. 273)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a
summer tire.
Typical DOT and Tire Identification Number (TIN)
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.
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