The results of the ESPON TIA Web Application – which were finalised in early 2015 – are now available online. Together with the Spanish partner AIDICO, Erich Dallhammer, Stephanie Essig, Jiannis Kaucic and Bernd Schuh developed the web application for assessing the spatial impact of EU-regulations. Besides the translation work of the already existing ESPON ARTS Quick Check into a user-friendly online web tool, regional sensitivity indicators were updated and a cartographic function for illustration of territorial impact was integrated. Enjoy testing the tool, which is freely available from the ESPON Website: http://tiatool.espon.eu/tia/