Two dual degree programmes
No. You cannot apply for two dual degree programmes. You can however apply for a dual degree programme and a two years graduate programme. In which case your first choice must be dual degree with the graduate programme as your second. If deadlines for these two programmes differ, you must respect the first to come to term.
Sciences Po students need to submit an application only if they are applying for a dual degree programme. Please do not indicate any choice of Master's as a second option. This decision will be made with the "Direction de la scolarité".