Individuals supported by NIH, AHRQ, and CDC research training, fellowship, research education, and career development awards will be required to have ORCID iDs (Open Researcher and Contributor Identifiers). ORCID iDs are unique, persistent digital identifiers that distinguish individual investigators and can be used to connect researchers with their contributions to science over time and across changes of name, location, and institutional affiliation. These free identifiers are assigned and maintained by the non-profit organization ORCID. The ORCID iD must be linked to the PD/PI’s eRA Commons Personal Profile to complete the appointment process through the xTrain system beginning in October 2019. Beginning with receipt dates on or after January 25, 2020, the requirement for ORCID identifiers will be enforced at the time of application by the eRA system validations for individual fellowship and career development awards.