The NCVS is the nation's primary source of information on the nature of criminal victimization. The NCVS collects data each year from a nationally representative sample of households on the frequency, characteristics, and consequences of criminal victimization in the United States. Currently, the NCVS includes four supplemental surveys that are administered on a rotating basis and focus on emerging crimes and special populations to produce estimates that are different from the core NCVS collection. This report outlines the development, methodology, and results of the split-sample administration of the 2019 School Crime Supplement (SCS) to the National Crime Victimization Survey (NCVS). The NCVS is sponsored by the Bureau of Justice Statistics (BJS) at the U.S. Department of Justice.