The European Society of Toxicology in Vitro (ESTIV) and the European Society for Alternatives to Animal Testing EUSAAT signed a Memorandum of Understanding at the EUSAAT 2022 congress in Linz. The MoU aims to intensify collaboration between the two EU societies with a focus on the implementation of 3Rs and New Approach Methodologies (NAMs) into modern science, research and regulations. More information on the collaboration between the two societies will be announced at the ESTIV 2022 Congress in Barcelona-Sitges.