The Horizon 2020 projects BeOpen (European forum and Observatory for open science in transport) and OSCAR (Open ScienCe Aeronautic & Air Transport Research) co-organised with great success the BE OPEN meets OSCAR: Open Science Collaboration” joint workshop, which was held online, on 16 June 2021. The event focused on providing general guidelines for Open Science promotion, regulatory schemes for Open Science operationalization and presenting interactive tools for enhancing Open Science collaboration amongst transport stakeholders.  pdf5 NTUA contributed actively with the following presentation: ppt5 European Code of Conduct of Open Science in Transport