A bit of a quandary.. I was born in CA, lived there for 18 years, acquired a CA driver's license (still have it). I went to school in PA for 4 years, voted there in the 2004 election (it was a swing state!! ) and paid a few taxes for misc. work I did during college. Now I'm working as a Research Tech in NY and most likely will have to pay state and city taxes because I currently reside in the city. My family lives in CA and my intention is to return to my homeland in the sun. Is it possible to still apply as a CA resident? What can be done to prove my "residency"?