-CHAINS OR SNOW TIRES ARE REQUIRED FROM 8.5 MI EAST OF GROVELAND TO   THE YOSEMITE NAT'L PARK BOUNDARY (TUOLUMNE CO)  
+CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW  TIRES ON ALL 4 WHEELS FROM 8.5 MI EAST OF GROVELAND TO   THE YOSEMITE NAT'L PARK BOUNDARY (TUOLUMNE CO)