by each collaboration individually through their own policies which are updated when necessary. The European Strategy for Particle Physics, a document mandated by the CERN Council that forms the cornerstone of Europe's decision-making for the future of particle physics, was last updated in 2020 and strongly affirmed the organisation's role within the open science landscape by stating: “The particle physics community should work with the relevant authorities to help shape the emerging consensus on open science to be adopted for publicly-funded research, and should then implement a policy of open science for the field”. Beyond the policy level, CERN has established a variety of services and tools to enable and guide open science at CERN, and in particle physics more generally. On the publishing side, CERN has initiated and operates a global cooperative project, the Sponsoring Consortium for Open Access Publishing in Particle Physics, SCOAP3, to convert scientific articles in high-energy physics to open access. Currently, the SCOAP3 partnership represents 3000+ libraries from 44 countries and 3 intergovernmental organizations who have worked collectively to convert research articles in high-energy physics across 11 leading journals in the discipline to open access. Public-facing results can be served by various CERN-based services depending on their use case: the CERN Open Data portal, Zenodo, the CERN Document Server, INSPIRE and HEPData are the core services used by the researchers and community at CERN, as well as the wider high-energy physics community for the publication of their documents, data, software, multimedia, etc. CERN's efforts towards preservation and reproducible research are best represented by a suite of services addressing the entire physics analysis lifecycle (such as data, software and computing environment). CERN Analysis Preservation helps researchers to preserve and document the various components of their physics analyses; REANA (Reusable Analyses) enables the instantiating of preserved research data analyses on the cloud. All of the abovementioned services are built using open source software and strive towards compliance with best effort principles where appropriate and where possible, such as the FAIR principles, the FORCE11 guidelines and Plan S, while at the same time taking into account relevant activities carried out by the European Commission. Public exhibits Facilities at CERN open to the public include: The Globe of Science and Innovation, which opened in late 2005 and is used four times a week for special exhibits. The Microcosm museum on particle physics and CERN history. CERN also provides daily