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Information for researchers

A central goal of the CJARS project is to develop a uniform, harmonized, accessible data infrastructure resource that can be leveraged by the entire research community. Increasingly fragmented use of administrative records in research introduces limits on reproducible science.

As the project matures, we hope that research users will become collaborative members of the CJARS project by helping improve data documentation, enhance data quality and harmonization, and discover new research uses.

CJARS is accessible to the research community through the Census Bureau’s Federal Statistical Research Data Center (FSRDC) network.

We are solely authorized to distribute CJARS data through the U.S. Census Bureau’s Federal Statistical Research Data Center (FSRDC) network to qualified researchers on approved projects. FSRDCs are Census Bureau facilities, housed in partner institutions, that meet all physical and information security requirements for access to restricted-use microdata of participating agencies.

Data requests require a research proposal submitted to the U.S. Census Bureau. All proposals require approval before data is accessible for research. CJARS has developed a proposal guide to assist researchers interested in requesting CJARS data. Please read through the proposal guide fully prior to beginning work on a research proposal. If you have any questions about the proposal development process after reading the proposal guide, you can reach out to the CJARS team at

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