The Bureau of Justice Statistics (BJS) compiles comprehensive information on persons sentenced to state and federal prisons, through the National Prisoner Statistics (NPS) survey and the National Corrections Reporting Program (NCRP). BJS has made these data available through the CSAT-Prisoners tool, an interface that can generate various statistics, figures and maps on prison admissions, prison releases, and year-end prison populations between 1978 and 2019.