The first time I got mine from my local school board office. The second time I got it from the school nurse. It was much easier getting it from the nurse. She found it in less than a minute but it took close to 20 minutes at the school board office. I´ve never seen it online but that doesn´t mean it doesn´t exist.
It does have to be notarized, so you´ll want to figure out where you can have that done.