Jan joined the euroCRIS CERIF Task Group in 2009 and became its leader in 2013, when he also became a member of the euroCRIS Board. He organised the Autumn 2010 euroCRIS Membership Meeting in Prague and headed the Organising Committee for the CRIS2012 Conference in Prague. Jan has also topped the list of most-voted Board members in the last two elections for a new Board at the end of 2020 and of 2022