SCHSL=South Carolina High School League.
SCISA=South Carolina Independent School League.
Certainly public schools cannot compete in Scisa unless they become independent of the public system, then they may! Last time I checked Bishop England is still a high school, so why can't they play in the high school league? I may be wrong on the who SCHSL thing, maybe it stands for South Carolina Highpublic School League, but I couldn't find much on their website saying that the schools that compete have to be public.
