================================================ Extended Submission Deadline ================================================ THIRD CALL FOR PAPERS: DEON 2025, VIENNA The 17th International Conference on Deontic Logic and Normative Systems (DEON 2025) will be held July 1 - July 3, 2025 at TU Wien (Vienna, Austria). The conference will be preceded by a day of tutorials on June 30. We happily invite paper submissions and participation at DEON 2025. *About the DEON conference series* The biennial International Conference on Deontic Logic and Normative Systems (DEON) conference series aims at bringing together researchers interested in the formal study of normative concepts, normative reasoning, and normative systems using methods from computer science, artificial intelligence, philosophy, linguistics, mathematics, and law. The series particularly aims at fostering interdisciplinary collaboration that combines methods from these various fields. Topics include but are not limited to the investigation of normative reasoning, concepts, and systems in relation to: agency and action, argumentation, defeasible reasoning, deontic modals, epistemic reasoning, explainability, knowledge representation, legal reasoning, multi-agent systems, natural language, norm change/revision, philosophy of reasons, policy preference reasoning, responsibility, social values, temporal reasoning and trustworthy systems. We welcome submissions of both theoretical and applied research for DEON 2025, and encourage interdisciplinary work. *Special focus* In addition to the general themes of the DEON conference series, DEON 2025 encourages the submission of papers on the special theme of Normative AI. The central aim of Normative AI is to ensure that AI systems make morally, legally, and socially acceptable decisions. As AI becomes increasingly important to human society, it is crucial to ensure that these technologies have a positive and responsible impact. This highly interdisciplinary field involves the evaluation and development of theories, formal frameworks, and algorithms, integrating both symbolic and sub-symbolic AI methods. *Important dates* - Abstract submission deadline: March 05, 2025 (extended) - Paper submission deadline: March 13, 2025 (extended) - Notification of acceptance: May 08, 2025 - Camera-ready version: May 25, 2025 - Tutorial day: June 30, 2025 - Conference: July 1 - July 03, 2025 *Keynotes* Natasha Alechina (Utrecht University, The Netherlands) Henry Prakken (Utrecht University, The Netherlands) Christian Straßer (Ruhr University Bochum, Germany) *Tutorial day* In addition to the conference, DEON 2025 will be paired with full tutorial day hosting a variety of tutorials on DEON related topics by top researchers in their respective fields. The tutorial will be given by: - Pedro Cabalar (Corunna University, Spain) - Ilaria Canavotto (University of Maryland, US) - Elisa Freschi (University of Toronto) & Josephine Dik (TU Wien) - Matthias Scheutz (Tufts Institute for AI, US) *Publication* The proceedings of the conference will be published by College Publications as an open-access book and will be available for participants during the conference. *Submission details* We invite submission of original and unpublished work. Parallel submission to journals or other conferences or workshops with published proceedings is not permitted. The reviewing process is single-blind (non-anonymized). Papers should be written in English. Submitted papers should not be longer than 15 pages (excluding references and technical appendix). Paper submission in PDF format will be managed through EasyChair. Submission templates and guidelines can be found on the Website: https://sites.google.com/view/deon-2025/home *Program Chairs* Agata Ciabattoni, Vienna University of Technology (TU Wien) John Horty, University of Maryland, USA *Program Committee* Houssam Abbas (Oregon State University) Chitta Baral (Arizona State University) Christoph Benzmüller (Otto-Friedrich-Universität Bamberg) Kees van Berkel (TU Wien) Jan Broersen (Utrecht University) Ilaria Canavotto (University of Maryland) Jose Carmo (University of Madeira) Huimin Dong (TU Wien) Hein Duijf (Utrecht University) Federico L. G. Faroldi (University of Pavia) Stef Frijters (KU Leuven) Guido Governatori (Central Queensland University) Joris Hulstijn (Utrecht University) Aleks Knoks (University of Luxembourg) Björn Lellmann (Bundesministerium für Finanzen) Emiliano Lorini (IRIT) Tim Lyon (Technische Universität Dresden) Juliano Maranhao (University of São Paulo) Réka Markovich (University of Luxembourg) Alessandra Marra (MCMP LMU Munich) Paul McNamara (University of New Hampshire) Robert Mullins (University of Oxford) Shyam Nair (Arizona State University) Pavel Naumov (University of Southampton) Eugenio Orlandelli (University of Bologna) Eric Pacuit (University of Maryland) Xavier Parent (TU Wien) Clayton Peterson (Université du Québec à Trois-Rivières) Gabriella Pigozzi (Université Paris-Dauphine) Antonino Rotolo (University of Bologna) Frederik Van De Putte (Erasmus University of Rotterdam & Ghent University) Olivier Roy (Universität Bayreuth) Ken Satoh (Center for Juris-Informatics, ROIS, Japan) Christian Strasser (Ruhr-University Bochum) Allard Tamminga (University of Greifswald) Leon van der Torre (University of Luxembourg) Paolo Turrini (University of Warwick) Serena Villata (CNRS - Laboratoire d'Informatique, Signaux et Systèmes de Sophia-Antipolis) Tomoyuki Yamada (Hokkaido University)