I knew I forgot something important!
 (Kid distractions again - sorry about that.) Yes, philosophical or religious - short and simple (thanks Marnica!)Â
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Don't worry about already having done some vaxes. Just ask for the blue form. You will need to sign a new one each year too. Ma2two seems to be an expert on CA exemption law and has all the links for you.
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As far as funding goes, there is a link between attendance and state funding, with an emphasis on student vaccination status in connection to this - about $30/day per student, although I imagine it varies from district to district.
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And yes, staff at schools in lower socioeconomic areas can treat exemptions with suspicion. In my experience, the school nurse felt it was her mission to embark on a personal crusade against the ignorant heathen in need of salvation. This woman did not even talk TO me, she talked AT me, despite my telling her my reason for signing an exemption was because my child almost DIED from vaccines. She didn't skip a beat, just completely ignored what I told her as if I was dumb or had never said anything at all and continued her speech about how wonderful vaccines are and how you can pick up Hepatitis B from desktop surfaces, and you really should get your daughter those boosters, etc, etc. I'm sure she didn't mean to be so insensitive and felt she was only doing her job, but talk about a complete disconnect mentality! Incredible. 
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Anyway, my experience is probably outside the norm, although I have heard many stories of people dealing with this with doctors. I'm sure it will go smoothly for you, since you are armed with information and resolute in your decision, so nothing to fear! Sorry this turned into a long post, just sharing (and maybe venting a little lol).
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Good luck and I hope your daughter enjoys kindergarten. 