RDA Registry

Welcome to the RDA Registry!

The RDA Registry contains linked data and Semantic Web representations of the elements and relationship designators approved by the RDA Steering Committee (RSC).

For details of the latest release see Release 3.3.0.


The RDA Registry is maintained by the RSC in association with ALA Digital Reference.

Please use the contacts below for more information. Remember that questions or comments about individual RDA elements or concepts can be easily made by using the OMR feedback button on the far right center of the page describing the individual property (it is orange, with white lettering).


If you discover a problem with the representations of the RDA vocabularies, or have a question, or even wish to engage in a philosophical or practical discussion, please raise an issue!

View the project on GitHub.