M+S or Winter tires required in western U.S.?
I did a search of DOT websites. It appears M+S or winter (mountain-snowflake marked) tires are not required in WA, ID, MT, UT, CA, NV, AZ unless conditions warrant authorities to require them i.e....
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My local Les Schwab has them on display and for sale. I also have not seen them in actual use and wonder how long they will last and how well they would do in wet slushy conditions.
