628 IF YOU NEED CONSUMER ASSISTANCE
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES . . . . . . . .635
▫ Treadwear. . . . . . . . . . . . . . . . . . . . . . . . . . .635
▫ Traction Grades . . . . . . . . . . . . . . . . . . . . . . .635
▫ Temperature Grades. . . . . . . . . . . . . . . . . . . .636