Our laboratory massively participated to the first Environmental Epigenetics workshop that was organized at the University of Örebro in Sweden, the 21st and 22nd of February 2019. It was the opportunity for F Silvestre, A Carion, V Chapelle and A Wittorski to meet other researchers deeply involved in the environmental and evolutionary questions linked to epigenetic mechanisms. It also gave keypoints about the regulatory perspectives of using epigenetics, mainly in ecotoxicology.