[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA] CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM HAM'S STATION (AMADOR CO) TO 5 MI WEST OF PICKETTS JCT (ALPINE CO) CHAINS OR SNOW TIRES ARE REQUIRED FROM THE JCT OF SR 89 NORTH TO 1 MI WEST OF WOODSFORDS (ALPINE CO) CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM THE JCT OF SR 89 SOUTH TO 3.5 MI EAST OF WOODFORDS (ALPINE CO)