Casing Grade A

First life original & virgin casing
DOT less than 5 years
No significant ozone/weather cracking
No ply/belt/rubber separation
No section repairs
No exposed textile fabric or steel cords
Maximum of 2 nail holes or similar type injuries up to 1/4" are allowable in the crown area only
No sidewall damage
No bead damage or distortion
No run-flat or obvious defect condition

Casing Grade B

First life original & virgin casing
DOT less than 6 years
Section repairs are allowable
Tread cuts into textile fabric/steel cords not exeeding 1" in diameter causing rusting/corrosion are acceptable
Maximum of 4 nail holes or similar type injuries up to 1/4" are allowable in the crown area only
Minor injuries on the sidewall area that are not damaging textile fabric or steel cords are allowable
Maximum of 2 damages to rubber only in the bead area, each less than 2" long are allowable.
All other conditions are the same as for GRADE A

Previously retreaded casing
DOT less than 7 years
Section repairs are allowable
Minor injuries on the sidewall area that are not damaging textile fabric or steel cords are allowable
All other conditions are the same as for GRADE A