Many efforts are going on across organized groups to tackle challenges that are currently barriers to realizing open, interoperable data models and schemas for credentials and competencies. The Technical Advisory Committee (TAC) promotes collaboration and harmonization of standardization initiatives, including identification of opportunities to formalize and document open models, vocabularies, and schemas. The Credential Engine Technical Advisory Committee (TAC) met on January 27, 2017 to discuss the technical development of the Credential Registry.