I don't know about special tags in Washington state, but I found that State
Farm *did* recognize the EV Camper as a "recreational vehicle", and this
combined with it not being my only car, significantly reduced the insurance
rate. It is *not* my primary transport vehicle which probably helped a lot.
I asked them why they didn't discount my Vanagon Camper when I first
insured it, and they hemmed and hawed a bit and never really did answer the
question.
The EV Camper does have a Washington State "inspection plate" on it which
certifies that it meets various state standards. Also an RVAA plate stating
the same. These may also be a factor - as far as the state is concerned
apparently it *is* a motor home. (Geez if I put a toilet in it I could get
a tax deduction no?)

-rick

Rick Gordon
Bainbridge Island, WA, USA
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rickgo@halcyon.com
http://www.halcyon.com/rickgo/
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