Files uploaded to Zenodo 40 can associate a license with the landing page for that data in the repository. Of the two data sets uploaded to Zenodo, authors of one manuscript had chosen to set a license and one had not. The data uploaded to an institutional repository do include an overarching license on the repository website. The data and code uploaded to GitHub 41 do not have any associated license information. Of the data files or packages that were not uploaded to a repository, none included a license. The SI PDFs and native data files uploaded to Figshare 39 from the ACS journals have CC0 47 assigned as the default license, meaning that the data have been dedicated to the public domain and others can reuse the data in any way they want to without citation of the source. It is unclear whether authors can select from alternative licenses or create a tailored license for their data.