The "acronym" link navigates to the latest version of the specification, this link changes whenever a new version of the specification is published.
The "Version" link navigates to the specific version.

Name Acronym Version Status Publication Date
Total: 3
Clinical Decision Support Service CDSS 1.0 formal June 2011
Identity Cross Reference Service IXS 1.0.1 formal May 2011
Retrieve, Locate, and Update Service RLUS 1.0.1 formal July 2011