NIST Privacy Framework
https://www.nist.gov/privacy-framework/privacy-framework
with PDF at
https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.01162020.pdf
NIST Cybersecurity Framework
https://www.nist.gov/cyberframework
with PDF at
https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.04162018.pdf