I was surprised by a few sections in the New York guide including number of days required and the required curriculum. If you work at a non-public school, looking at this guide is worth your time. One of the oddest lines in the document (which is very general) is this one:
The course of study for the first eight years of public school must include...American history including the Declaration of Independence and the Constitution of the United States, and may include a course in communism and its methods and its destructive effects. N.Y. Educ. Law §3204.3.
That line feels like a cold war relic. Odd, and out of place in the document.
Another that surprised me was:
Nonpublic school students are required to participate in the Regents competency testing program before graduation from high school.
I don't believe this to be true, but perhaps there is an exception somewhere.
This is a public domain document, so I am able to place the entire document here. You can also find a digital copy here.