Pre-prints are manuscripts and other interim research products which have not undergone peer-review and formal acceptance for publication. In 2017 the NIH issued NOT-OD-17-050 to encourage funded investigators to speed the dissemination of tax-payer funded research by citing and claiming pre-prints as products of NIH funding. In 2023, NIH started a pilot program to list pre-prints funded by NIH in PubMed and to upload the manuscripts to PMC if the appropriate sharing license is selected on pre-print submission.