Vandepontseele, SophieIsbergue, Nadège2025-09-242025-09-242017Belspo. Orfeo [Online]. Available at: https://orfeo.kbr.be/ (Accessed: 26 July 2019) Capron, H., Boudewijn D., and Depelchin M., Les établissements scientifiques fédéraux. Bruxelles: Editions de l’Université de Bruxelles, 2010, p.120-123. Belspo (2018). BELSPO Open Access Policy [Online]. Open Science - Belgian Science Policy. Available at: https://www.belspo.be/belspo/OpenScience/pub_belspo_policy_en.stm (Accessed: 26 July 2019). Budapest Open Access Initiative [Online]. Available at: https://www.budapestopenaccessinitiative.org/read (Accessed: 01 August 2019) Max-Planck-Gesellschaft. Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities [Online]. Max Planck Open Access. Available at: https://openaccess.mpg.de/Berlin-Declaration (Accessed: 01 August 2019) European Commission. Recommendation on access to and preservation of Scientific Information [Online]. Available at: https://ec.europa.eu/digital-single-market/en/news/recommendation-access-and-preservation-scientific-information (Accessed: 01 August 2019) KBR (2019). Loi du 8 avril 1965 instituant le dépôt légal [Online]. KBR. Available at: https://www.kbr.be/fr/loi-du-8-avril-1965-instituant-le-depot-legal/ (Accessed: 26 July 2019). KBR (2019). Arrêté royal du 31 décembre 1965 [Online]. KBR. Available at: https://www.kbr.be/fr/depot-legal/historique-de-la-legislation-sur-le-depot-legal/arrete-royal-du-31-decembre-1965/ (Accessed: 26 July 2019). KBR (2019). KBR conservera bientôt toutes les publications numériques [Online]. KBR. Available at: https://www.kbr.be/fr/kbr-conservera-bientot-toutes-les-publications-numeriques/ (Accessed: 25 July 2019 ). KBR (2019). Dépôt légal [Online]. Available at: https://www.depotlegal.be / https://www.wettelijkdepot.be (Accessed: 07 June 2019). Archimed. Syracuse [Online]. Archimed - Logiciels de gestion de bibliothèque et GED. Available at: https://www.archimed.fr/produit-solutions-pour-bibliotheque/syracuse/ (Accessed: 07 June 2019). Schöpfel, J. and Farace, D. Grey literature. In: Encyclopedia of Library and Information Sciences. Boca Raton: CRC press, 2010, p. 2029-2039. KBR. PROMISE project [Online]. KBR. Available at: https://www.kbr.be/en/projects/promise-project/ (Accessed: 01 August 2019).https://repository.ifla.org/handle/20.500.14598/6695The Belgian Science Policy Office, which the Royal Library of Belgium, no known as KBR, is part of, has launched an institutional Open Access Repository for Federal Organisations (ORFEO). KBR has been involved at two levels: firstly by the integration of the publications from its researchers and secondly as a partner for the development of the repository. In the context of the latter, an analysis is conducted in order to consider the future of ORFEO and its integration in KBR's collections. The analysis includes a reflection about how a national library, whose mission includes the legal deposit, can play a role regarding grey literature. This article presents the initiatives for Open Access at a federal level, the particularities and current situation of the Belgian legal deposit and how grey literature can be taken into account. Finally, the three approaches studied to take over ORFEO are detailed.enAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Articlehttps://2019.ifla.org/conference-programme/satellite-meetings/open accessGrey literaturelegal depositopen accessdata exchangenational library