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Cooperative Agreement


Grant Description
The aim of the National NIBRS Estimation Project (NNEP) is to produce national and subnational estimates of crimes reported to police and their associated characteristics based on the set of law enforcement agencies who submit data to the Uniform Crime Report (UCR) through the National Incident Based Reporting System (NIBRS).

Beginning with the 2021 data year, with the sunset of the Summary Reporting System, the estimates produced through the NNEP are used for the official crime statistics reported by the FBI and for detailed reports on characteristics of crimes reported to the police produced by the Bureau of Justice Statistics. As the official statistics on crime reported to the police, the NNEP is beneficial to policy makers, law enforcement agencies, researchers, and the general public.

The NNEP, which began in 2017, has completed the first two phases of development: (1) the development of the statistical methodology used to produce representative estimates for a key set of NIBRS indicators at the national and subnational levels; and (2) the creation of an estimation system, based solely on open-sourced software, that computes and integrates the various components of the statistical methodology needed to produce the NIBRS estimates. These first two phases, conducted by RTI International, culminated in the production of the 2021 Uniform Crime Statistics on the number of offenses and arrests in the United States.

Beginning in 2022, the NNEP, which will continue to be conducted by RTI, will shift into its next phase, which will have two components. The first of these will be to maintain the current system and produce the 2022 UCR statistics. As agencies are expected to continue transitioning to NIBRS, methodologies will be adjusted to maximize the geographic areas for which estimates can be produced, and the estimation system will be optimized to accommodate the increased number of incidents. In the second component, new methodologies will be developed to further enhance the utility of the NIBRS estimation system. This component will consist of several research areas including the expansion of the indicators reported through the NNEP; expansion of the geographic areas for which estimates are produced; enhancements to the estimation procedures, including how bias is estimated; the expansion of NIBRS data elements that can be imputed; and additional optimization procedures for the estimation system. Where possible, these enhancements will be built into the estimation system and incorporated into the 2022 data year or later UCR statistics.
Place of Performance
Research Triangle Park, North Carolina 27709-0155 United States
Geographic Scope
Single Zip Code
Analysis Notes
Amendment Since initial award the End Date has been extended from 10/31/23 to 10/31/25 and the total obligations have increased 300% from $999,960 to $3,999,959.
Research Triangle Institute was awarded NNEP: National NIBRS Estimation Project for Crime Statistics Cooperative Agreement 15PBJS22GK00713BJSB worth $3,999,959 from the Bureau of Justice Statistics in November 2022 with work to be completed primarily in Research Triangle Park North Carolina United States. The grant has a duration of 3 years and was awarded through assistance program 16.734 Special Data Collections and Statistical Studies. The Cooperative Agreement was awarded through grant opportunity FY 2022 National Incident-Based Reporting System Estimation Project.


Last Modified 11/20/23

Period of Performance
Start Date
End Date
53.0% Complete

Funding Split
Federal Obligation
Non-Federal Obligation
Total Obligated
100.0% Federal Funding
0.0% Non-Federal Funding

Activity Timeline

Interactive chart of timeline of amendments to 15PBJS22GK00713BJSB

Transaction History

Modifications to 15PBJS22GK00713BJSB

Additional Detail

SAI Number
Award ID URI
Awardee Classifications
Nonprofit With 501(c)(3) IRS Status (Other Than An Institution Of Higher Education)
Awarding Office
Funding Office
Awardee UEI
Awardee CAGE
Performance District
Thom Tillis
Ted Budd

Budget Funding

Federal Account Budget Subfunction Object Class Total Percentage
Research, Evaluation, and Statistics, Office of Justice Programs, Justice (015-0401) Criminal justice assistance Grants, subsidies, and contributions (41.0) $3,999,959 100%
Modified: 11/20/23