UPDATE: 1:09 p.m.
As of 12:12 p.m. there is no more chain control.
According to Caltrans District 2 Twitter page vehicle screening is currently in place for north bound lanes of I-5 traffic at Fawndale Road 10 miles north of Redding.
Truck traffic continues to be held at Fawndale Road at this time.
Motorists must carry chains to travel north.