hi icuhermit : i'm not from California but as I'm seeking job opportunities in America I'm alittle bit well informed than you are. I don't remember by now if the California Nursing Board requires a social Security Number for applying for the NCLEX-RN, but I think you can find it out at their website. you have to go to
www.nursingworld.org there you click on Constituent Members Associations, here you will find all the websites of all the nursing board of USA. Then if you want you can e-mail them.
Good Luck. And if you have any contact for obtaining a nursing position would you please let me know? Cheers from the south