The module’s objective is to create a specialised course in EU social security law, as an elective course at the fifth and final year of the integrated Study of Law. Its basis will be the existing course Social security and competition law. The module proposes a teaching upgrade in terms of its contents and methodology. The teaching of EU social security law has so far been only marginal at the Croatian law faculties and there is a compelling need for a separate course in view of the increased mobility of Croatian nationals as EU citizens. Involvement of guest lecturers is envisaged as a way to advance the understanding of the EU dimension of social security and make use of their teaching experience. Module’s outcomes primarily include:- reform of the existing course Social security and competition law by broadening its content to include all matters of EU social security law;- preparation of a first comprehensive textbook on EU social security law in Croatian;- creation of open-access website with teaching materials; - organisation of a one-day seminar on open issues of EU social security law. This is a novel approach in teaching, aiming to stimulate wider multi-disciplinary discussions and revise the teaching contents in view of practical problems in the application of EU social security law. Module’s impact is visible on three levels: - institutional – it will reshape the existing course and offer students at the start of their professional careers a specialised knowledge in EU social security law and thus reinforce the teaching of EU law related subjects at the University of Rijeka; - local and national – outputs (textbook, open-access web repository) will be accessible to all interested parties in libraries, bookshops and Internet; - European and international – visiting lecturers, experts in the field of social security will share their experience and knowledge and the module will thus stimulate academic cooperation in the region and beyond.