All large-scale assessment studies conducted by IEA are aimed at facilitation of education reseach and policymaking in the area of education worldwide. Therefore, IEA provides an open-source access to its study publications and study data for all interested parties. In case of ICCS, IEA produces a rich set of reports and a database for secondary analysis.
Another rich resource of information on the large-scale assessment studies by IEA and third parties is the newly launched ILSA Gateway. The website compiles a broad array of study-related materials, including ICCS, which can be navigated by study, theme, design or organization.