The European Charter for Access to Research Infrastructures sets out non-regulatory principles and guidelines to be used as a reference when defining Access policies for Research Infrastructures and related services. While not having any legally binding nature, Research Infrastructures are encouraged to use this Charter as a reference when updating existing or defining new Access policies. In addition, the funding organisations of Research Infrastructures are invited to promote this Charter’s provisions. The update of the Charter published in 2015 is part of the ERA Policy Agenda 2022- 2024. (from the abstract of the study)