620 IF YOU NEED CONSUMER ASSISTANCE
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES . . . . . . . . . . . . . . . . .627
▫ Treadwear. . . . . . . . . . . . . . . . . . . . . . . . . . .627
▫ Traction Grades . . . . . . . . . . . . . . . . . . . . . . .628
▫ Temperature Grades. . . . . . . . . . . . . . . . . . . .628