Fines For Not Being Buckled Up In Tennessee Will More Than Double Starting At The First Of Next Year. The Cost Of A First-Time Violation Will Rise From 10 Dollars To 25 Dollars, And The Cost Of A Second Violation From The 20 Dollars To 50 Dollars. Tennessee Highway Patrol Commander. Colonel Tracy Trott Said Seat Belts Save Lives And He Hopes The Higher Fines Will Encourage More People To Change Their Behavior And Wear Them