The issue of tire age comes up from time to time. My take on is that if you live in a hot weather state (AZ, CA, NV, TX, and FL), the limit is 6 years. If you live in a cold weather state (MT, ND, WI, and MN) , the limit is 10 years. States in between are … ah … in between.
In this case, a vehicle from Georgia is in the 7 year range, and TN would be 8.