Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


NIEM Announces Release of Conformance and IEPD Specifications and JSON Beta1 Release for Review

The National Information Exchange Model’s (NIEM) Management Office announces the final release of two specifications:

The Conformance Specification details NIEM general conformance guidance, principles, and rules. 

The specification provides normative rules and non-normative guidance for building NIEM information exchange messages.

NIEM JSON Specification 5.0 beta1 is available for public review and feedback through Friday, 9 April.
The JSON Specification establishes the technical basis for using JavaScript Object Notation (JSON) as a data format for exchange of information consistent with NIEM-conformant schemas and message specifications.

NIEM specifications provide rules and guidance to ensure design consistent and well-defined information exchanges. Specifications are managed by NIEM’s Technical Architecture Committee 

NIEM’s TechHub provides the developer community with resources and training. The technical repositories are simplified for ease of navigation and use. The landing page for NIEM Specifications includes “Announcements,” and identifies NIEM specifications ready for review.

About the National Information Exchange Model
The National Information Exchange Model (NIEM) provides a model framework with rules and guidance designed to develop consistent, well-defined, enterprise level information exchanges. NIEM successfully supports communities of interest with a shared need to exchange data within federal, state, local, tribal, and territorial agencies, internationally, and in the private sector.
To learn more, please visit