Last year (Feb 2012) I purchased my Lazy Daze from an owner in CA and drove it east to VA. I paid sale tax in VA. I was able to use the California Lic Plate. In CA there is a form that transfers the plate from the owner to the buyer. The seller needs to see proof of insurance. The two of you fill out the form and the tag is registered to the buyer. It is a great system. In my state you can not get a temp tag with out a title. All the information is on the CA DMV website.
the form I was talking aboutWhat is confusing is that the tax issue for a
NEW RV
made in Ca is different. If I were to buy a new LD and wanted to pay tax in VA I would have to have the RV delivered to another state (usually AZ or NV) and take position in the presence of a Notoriety. Technically I would not be able to then drive the RV back into Ca until it is tagged in my state. There is a big how to thread on the LD yahoo group on just how to handle the issue of new RVs.