Oregon is touching CA, this kind of stupidity is known to be contagious. Personally if I was restricted in such a way as to endanger my life in an accident if I couldn't put a traction type tire on my vehicle and had and accident due to that........
...........can you say sue? If I had an accident due to lost traction on ice or snow just because I couldn't put a true mud and snow tire on my vehicle somebody is going to pay. I sure hope there are smarter people in Oregon that that brain.