The Iowa UCR program has adopted a new technical specification effective for calendar year 2021.
- Iowa UCR Flat File Technical Specification
- FBI NIBRS Technical Specification V2019.1
- Iowa UCR Technical Specification – File Layout
- Iowa UCR Technical Specification - Appendix A. Iowa Cities Table
- Iowa UCR Technical Specification - Appendix B. Iowa Zip Codes Table
- Iowa UCR Technical Specification - Appendix C. Group A Offenses and Appendix D. Group B Offenses
- 2021 Iowa UCR Revisions