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NIEM 3.2 Beta Now Available for Public Review and Comment

​​The NIEM Program is pleased to release NIEM 3.2 Beta for public review and comment. To ensure that the final NIEM 3.2 best meets users’ evolving needs, we are calling on the NIEM Community to review NIEM 3.2 Beta and share feedback by April 15, 2016.

NIEM 3.2 will be a minor release that incorporates content identified since NIEM 3.1 was released in May 2015. The NIEM release cycle allows us to make NIEM model updates on a predictable and sustainable schedule.

What’s in NIEM 3.2?

NIEM 3.2 incorporates (1) significant changes to several existing domains, and (2) a new Surface Transportation domain.

Domain Changes:

  • Existing domains updating their model content:
    • Emergency Management
    • Biometrics (including enhanced alignment to ANSI/NIST-ITL developments)
    • Military Operations
    • Justice (including new Corrections content)
    • Human Services
  • Welcome U.S. Department of Transportation and the new Surface Transportation domain!

Get NIEM 3.2 Beta:

The model is available in both NIEM-conformant XSD and Microsoft Excel formats.

Download NIEM 3.2 package at This package contains both the XSDs and the spreadsheet format.

Submit your NIEM 3.2 comments by April 15, 2016, to All domain specific feedback will be reviewed by the lead developer and the associated domain(s). Feedback received outside the scope of NIEM 3.2 will be reviewed for future releases, as appropriate.

When will NIEM 3.2 be Final?

We expect the final operational release of NIEM 3.2 in the June 2016 timeframe. Please stay tuned for updates.

​​​​Helpful Hint: To see a list of changes that have been made from 3.1 to 3.2 Beta, please download 3.2 Beta and refer to the change log spreadsheet in the zip folder where you can filter on specific domains.

For those who use the NIEM Subset Schema Generation Tool (SSGT): If you are interested in testing, searching, or trying subsets, our staging server is now running with 3.2 Beta. Please note, the staging server may seem a bit slower than the production server as it does not have the same computing power.