Each tire manufacturer isresponsiblefor designating the rating of each of its tires.  LT designated light truck tires do not have UTQG markings.

The Uniform Tire Quality Grade (UTQG) offers three more key pieces of information about a tire:

Treadwear grades - typically range from 60 to 620 in 20 point increments. The higher the grade, the longer the tread life.

Traction grades - indicate a tire's braking performance. A grade from "AA" to "C" is assigned, with "AA" signifying the best traction.

Temperature grades - represent a tire's ability to withstand heat under test conditions. Temperature grades are assigned "A" to "C," with" A" signifying the most resistance to heat.