https://nces.ed.gov/learn/blog/common-core-data-ccd-nonfiscal-data-releases-how-national-center-education-statistics-improved
Common Core of Data (CCD) Nonfiscal Data Releases - How the National Center for Education...
What is the Common Core of Data? Every year, the National Center for Education Statistics (NCES) releases nonfiscal data files from the Common Core of Data...