Per available information:
https://www.linkedin.com/feed/update/urn:li:activity:7349454034740617216/
https://datafoundation.org/news/press-releases-and-statements/647/647-Statement-on-the-Appointment-of-Mark-Calabria-as-Chief-Statistician-of-the-United-States
It appears that Karin Orvis, who served as Chief Statistician since April 2022, has been redesignated as the Chief for the Statistical and Science Policy branch within the Office of Information and Regulatory Affairs (OIRA). This suggests a change in practice from 2023, where according to an OIRA organization chart released via a Freedom of Information Act request, the branch Chief and Chief Statistician were the same position: https://www.governmentattic.org/52docs/OMBoiraOrgChart2023.pdf.
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Meghan Stuessy
Congressional Research Service
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