If you have the time it is still possible to get bikes street legal in California. I have heard that if you get a EPA emissions sticker from a street legal bike and put it on your dirt bike you should be able to get a plate for it. You must have a green sticker bike for this to work. The tough part is getting the sticker. I tried ordering a fender from a street legal bike that has the sticker on it but the sticker was not included and cannot be ordered separately. I am still working on finding out more info. Does anyone have any suggestions? I have a 05 WR450 I would like to get a CA plate for because I am selling my 02 WR426 that has a CA Plate.