Member | Water Governance Initiative | OESO | Not remunerated
Member | EU Forum of Judges for the Environment (EUFJE) | Not remunerated
Member | Adviesraad van het European Environmental Law Forum (EELF) | Not remunerated
Adviser | Competence network challenges for Environmental Law, Helmholtz Centre for Environmental research | Not remunerated
Editor | Journal of European Environmental Planning Law | Not remunerated
Member | Wetenschappelijke adviesraad Waddenacademie | Waddenacademie | Not remunerated
Member | wetenschappelijke adviesraad van het PhD programma Recht, Ethiek en Economie voor Duurzame Ontwikkeling van de Universiteit van Milaan, Italië | Not remunerated
Editor | section Climate Law and Policy | Journal Frontiers in Climate | Not remunerated
Member | Evaluatiecommissie Omgevingswet | Remunerated ()
Member | Commissie van Deskundigen | Vereniging Natuurmonumenten | Not remunerated