The 2020-21 Civil Rights Data Collection (CRDC) is a mandatory survey of all public school districts and schools serving students in preschool through grade 12 in the 50 states, Washington, D.C., and the Commonwealth of Puerto Rico and therefore includes data from 17,821 public school districts and 97,575 public schools. The CRDC measures student access to courses, programs, Internet and devices, instructional and other staff, and resources -- as well as school climate factors such as student discipline, use of restraint and seclusion, harassment or bullying, and offenses occurring at schools -- that impact education opportunity for students. This report highlights student discipline and school climate data public school districts submitted to the U.S. Department of Education's (ED) Office for Civil Rights (OCR) for the 2020-21 school year.