Well,,
I moved to Wa from Cali. and I found it much easier in dealings with the DMV in Cali, just takes a little longer depending on where you live. Take your 2 forms of I.d. , The title information just incase, physical address relocation form, the vehicle will have to be inspected by CHP prior to registry to make sure it is within California vehicle code, smogged I believe before goin in to DMV, old registration card, and proof of insurance I am not too sure about, but couldnt hurt. All of the road laws are pretty much the same. Basically anything that your common sence tells you to bring, bring it and then some. Trust me, ya dont want to get all the way there and sit for a few hours only to be told "You need to bring this and this and these". Not cool,
A little long winded but it should all be there.