[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 9 MI EAST OF PINE GROVE TO 3.6 MI WEST OF DEW DROP (AMADOR CO) CHAINS OR SNOW TIRES ARE REQUIRED FROM HAM'S STATION TO SILVER LAKE (AMADOR CO) CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM SILVER LAKE (AMADOR CO) TO 5 MI WEST OF PICKETTS JCT (ALPINE CO)