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The V3 Substantive Change document is published as part of the Version 3 Ballot Web Site. This document (in the section Background documents) provides some general principles as well as specific rules and examples of what changes are substantive. It also provides some reference material on the role substantive change plays in the HL7 balloting process.

Purpose: The purpose of this document is to give guidance to Health Level Seven (HL7) Technical Committee (TC) Chairs in determining whether a change to a Version 3 Specification is Substantive.

Is Core to supporting an HL7 process

Product Family:

  • HL7 V3

HL7 Functional Areas:

  • Standards Development
  • Implementation


  • Web Delivered

Version Rollout Date Last Update License
1 2007-09-01 unspecified

People and Organizations associated with Version 3 Substantivity Guide:

none identified


  • 2016-06-01 (initial load) The current V3 Ballot Web Site is always available at: After clicking into the V3 Ballot Web Site content pages from the Introduction page, use the left-hand navigation tree to go to Background Documents/Substantive Change.