Skip Ribbon Commands Skip to main content
Thermometer graphic 3.0 Fireworks

Current Release: NIEM version 3.1
Release Date: May 2015

Download the current release of the model and schemas here.

NIEM 3.1 is a minor release.  Learn more about the NIEM release cycle here.

Important NIEM 3.0 specifications are available:

Naming and Design Rules (NDR): This document specifies principles and enforceable rules for NIEM-conformant schema documents, instance XML documents, and data components.

Model Package Description (MPD): This document specifies normative rules for organizing and packaging Model Package Descriptions. An Information Exchange Package Documentation (IEPD) is a type of MPD. It defines required and optional artifacts, metadata, schemes, and syntax. It also provides some non-normative guidance.

Conformance: This document defines general conformance to NIEM.

Conformance Target Attribute: This document specifies an XML attribute that may occur within XML documents to establish a claim that the document conforms to a set of conformance targets.

Are you in the 3.Know?

You are leaving the website and entering an external or third-party website. Please note that this website is not controlled by NIEM or subject to our privacy policy.

NIEM has provided this link because it provides additional information that may be useful or interesting and is being provided in a manner consistent with the intended purpose of the NIEM website.

NIEM cannot attest to the accuracy of information provided by these third-party sites or any other linked site. NIEM is providing these links for your reference. In doing so, NIEM does not endorse any non-government websites, companies or applications.

Select "OK" to continue, otherwise, select "Cancel"