Where do I check if I am in-state?

At least for admissions purposes, I am almost positive that I have in-state residency because my dad has lived in California for over a year (parents are divorced). But I realized I never had any confirmation of that! I wouldn’t be worrying or posting about this unless it had such a huge impact on admissions… So if anyone knows where I can check to confirm my in-state residency, let me know! Thanks in advance!

You’ll know when you start applying for financial aid.