Between Dec 22, 2025 and Jan 5, 2026, items can be submitted to the UDC and DRUM, but will not be processed until after the break. Staff will not be available to answer email during this period, and will not be able to provide DOIs for datasets until after Jan 5. If you are in need of a DOI during this period, consider Figshare, Zenodo, Open Science Framework, Harvard Dataverse or OpenICPSR.