-Chains are required on all vehicles except 4-wheel-drive vehicles with snow tires on all 4 wheels from Truckee (Nevada Co) to the Sierra/Plumas Co Line
+Chains are required on all vehicles except 4-wheel-drive vehicles with snow tires on all 4 wheels from Truckee (Nevada Co) to 11 mi norht of Truckee (Sierra Co)
+Chains or snow tires are required from 11 mi north of Truckee to Sierraville (Sierra Co)
+Chains or snow tires are required from Sattley (Sierra Co) to the Sierra/Plumas Co Line