California has no active chain controls reported on monitored routes as of 2026-08-18T08:48Z, source: Caltrans; source freshness: healthy; coverage: full.

# California Chain Controls

All monitored routes are covered by available sources. Source freshness: healthy; coverage: full.

## Affected Routes

No affected routes are listed.

MountainSwitch does not determine whether a route should be driven. Verify with Caltrans before traveling.