[IN THE SACRAMENTO VALLEY & THE LAKE TAHOE BASIN] CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM 4 MI EAST OF PLACERVILLE TO MEYERS (EL DORADO CO) PLEASE RESEARCH CHAIN CONTROL LOCATIONS AS CALTRANS IS CURRENTLY WORKING TO UPDATE CHAIN CONTROL DESCRIPTIONS FOR CONSISTENCY WITH INTERNET MAPPING, LIKE GOOGLE MAPS & MAPQUEST. EASTBOUND TRUCKS ARE BEING SCREENED AT TWIN BRIDGES (EL DORADO CO) - DRIVERS MUST HAVE MAXIMUM CHAINS IN THEIR POSSESSION IN ORDER TO PROCEED - PERMIT LOADS ARE PROHIBITED WESTBOUND TRUCKS ARE BEING SCREENED AT MEYERS (EL DORADO CO) - DRIVERS MUST HAVE MAXIMUM CHAINS IN THEIR POSSESSION IN ORDER TO PROCEED - PERMIT LOADS ARE PROHIBITED