In the past several weeks there have already been three-major accidents outside Pendleton.
The latest came Tuesday morning when icy conditions caused multiple vehicles to spin-out between Pendleton and La Grande near the Wildhorse exit.
Both lanes were closed for hours.
Officials say people need to pay attention to chain requirements.
It could help you avoid a wreck.
And if you're caught without chains when they're required -- it's a 150-dollar ticket.