The count of in-school suspension (ISS), out-of-school suspension (OSS), and expulsion incidences for every 100 students at a school, aggregated across a community, and available as a sum total (ISS + OSS + expulsions) to make overall comparisons. Such exclusionary punishments, where youth are removed from the learning environment, have deleterious consequences, and disproportionately impact students of color and students with disabilities. An in-school suspension is the removal of a student from their regular educational schedule for more than 60 minutes of the school day to an alternative supervised setting inside the school building to engage in structured activities that develop academic, social, emotional, and/or behavioral skills. An out-of-school suspension is the removal of the student from class attendance or school attendance. Expulsion is the removal of a student from school for 11 or more consecutive days, up to a maximum of two calendar years. Data on school disciplinary rates is available online, found in school level reports, from the “Metrics” section of the Chicago Public Schools website.