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NIEM 5.0 Release Candidate 1 Available for Public Review and Comment

The NIEM 5.0 release candidate 1 (RC1) is available for public review and comment through Thursday, September 10, 2020. Please visit the NIEM Releases page at for instructions on how to download the RC1 package.  Please provide feedback by submitting a new 5.0 issue or by sending an email to

This is the final stage before we officially publish the final NIEM 5.0 release. At this point in the release cycle, we are working to get to a stable draft and are looking to address errors and bugs only. Other issues can be queued up for the next release.  The final release of NIEM 5.0 is scheduled to be published this fall. At that time, 5.0 XML schemas and documentation will be published along with updates to NIEM specifications and tools.