Chains required on I-80 over the Sierras

 This is from Caltrans:

begin quote from:

 https://roads.dot.ca.gov/

I 80

[IN THE SAN FRANCISCO BAY AREA - SOLANO CO]
A HIGH WIND ADVISORY IS IN EFFECT AT THE SAN FRANCISCO-OAKLAND BAY BRIDGE /IN SAN FRANCISCO/ (SAN FRANCISCO,ALAMEDA CO) - TRAVEL IS NOT RECOMMENDED FOR CAMPERS, TRAILERS OR PERMIT LOADS

[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA]
CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM KINGVALE (PLACER CO) TO THE DONNER LAKE INTERCHANGE (NEVADA 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 APPLEGATE (PLACER CO) - DRIVERS MUST HAVE MAXIMUM CHAINS IN THEIR POSSESSION IN ORDER TO PROCEED - PERMIT LOADS ARE PROHIBITED

WESTBOUND TRUCKS ARE BEING SCREENED AT OVERLAND TRAIL RD /IN TRUCKEE/ (NEVADA CO) - DRIVERS MUST HAVE MAXIMUM CHAINS IN THEIR POSSESSION IN ORDER TO PROCEED - PERMIT LOADS ARE PROHIBITED

A HIGH WIND ADVISORY IS IN EFFECT OVER THE YOLO CAUSEWAY & OVER THE BRYTE BEND BRIDGE /WEST OF SACRAMENTO/ (YOLO CO)

ALL WESTBOUND TRUCKS ARE REQUIRED TO STOP AT THE BRAKE CHECK AREA 0.5 MI WEST OF NYACK (PLACER CO) - TO REDUCE THE RISK OF BRAKE FIRES