On Mon, Nov 10, 2014 at 9:54 PM, <mcneely4@cox.net> wrote:

>
> "SEVERE SERVICE EMBLEM OR MOUNTAIN SNOWFLAKE SYMBOL DESIGNATION RATED FOR
> USE IN SEVERE WINTER CONDITIONS"
>
> Does that mean that I don't have to have chains for mountain passes even
> when the chain up sign is on, if I have these tires?  I believe I probably
> would chain up if the sign is on, but just wondering about that.  That is
> the meaning of the mountain snowflake symbol isn't it?

Dave,

Here are some links from Washington state and BC which do a nice job of
explaining Mountain/Snowflake, Chain requirements, etc.

Washington State --- chains sometimes required on two wheel drive vehicles
even with 4 dedicated snow tires.  All wheel drive vehicles with approved
tires must carry one set of chains.
http://www.wsdot.wa.gov/winter/traction.htm
http://www.wsp.wa.gov/traveler/traction.htm

BC -- looks as if chains are not required if you have approved tires
http://tranbc.ca/2014/10/01/shift-into-winter-the-inside-scoop-on-winter-tires/
http://www2.gov.bc.ca/gov/topic.page?id=81B6C01721884CDDA3FDC932E8678D9B

So yes, no matter which approved tires you select, it would not be bad
advice to also carry a set of chains for the front tires of the Prius.

Harold

Harold Teer
1991 Westy -- VANGAUX
Harrisonburg, VA

>