All you have to do is, contact your district's District Office, OR contact the Superintendent of the Department of Education.
And check with them on it.
Now, per fingerprinting, say the Principal does require fingerprinting. BUT then, so... it also has to be kept on file either via computer or on paper, it would also therefore mean the school has to have a whole filing system, on the PARENTS too etc., and how are they going to then "background" check the fingerprints???
I work at my kids' school. As Staff. As a part of the EMPLOYMENT process and requirements, I had to be, F.B.I Fingerprinted AND background checked. Because I would be working with children. This is required of all, school Staff/employees. The fingerprinting, was not just an ink-pad and then fingerprints on a paper. It was done, via COMPUTER and in a computer system. Digitally. AND thus, the background check was also via, proprietary computer programs and computer systems, AND also includes, via law, adherence to PRIVACY laws, as well, etc. Only certain Staff, can do the fingerprinting as well and/or the background checking process.
AND, if something like this is "required" by the Principal, then, yes, any information/consent forms etc., must be sent to the parents.
You can also choose to ask you own Lawyer about this.
MANY schools, and preschools, require background checks and/or fingerprinting of the adults who are on campus and its Volunteers.
But since this is a public school, of which its Principal is talking about instituting this rule, then, I would think that it would need to be cleared and okayed, by the Department... of Education. Not on a school to school basis.
And even if the fingerprinting is required by the Principal, it is also a choice. If you want to work/volunteer/assist on Campus, then sure, things like this are often required.