For projects (co-)funded by the FNR and accepted before 1 January 2017, no policy applies, though authors are recommended to make their publications accessible in Open Access.

For projects granted after 1 January 2017 but before 1 January 2021 (exception: monographs), the FNR requires for publications to be accessible in Open Access. The minimum requirement is for the Author Accepted Manuscript (aka. postprint) or the Version of Record (aka. publisher's version) to be deposited on a suitable OA repository respecting an embargo period of 6 months (or 12 months for social sciences and humanities). Should OA publications fees (i.e. Article Processing Charges) be required, the FNR reimburses through its OPEN ACCESS FUND up to 2500€ for OA journals, 1500€ for hybrid journals and 2000€ for monographs. Read the full guidelines here.

For projects accepted after 1 January 2021, FNR's policy aligns with the guidelines set by Plan S, the FNR being a member of cOAlition S. Publications must be made available in OA immediately upon publication (i.e. no embargo allowed) and authors must retain sufficient copyright allowing them to deposit their Author Accepted Manuscript in an open access repository under a public licence. The FNR will continue funding OA publications fees when required, with the exception of hybrid journals that are not part of a transformative agreement. Read the full guidelines here.

Authors from projects accepted after 1 January 2021 will also be required to possess an ORCID and draft a Data Management Plan before the beginning of the project.