[en] The 13. GIF-IAEA Interface Meeting was held in Vienna, Austria from 18-19 March 2019. The objectives of the Meeting were as follows: • Exchange information on the progress, status and future plans of activities related to RD&D and technology innovations of NES, including Gen IV reactors; • Monitor progress and update status of action items agreed in the previous interface meeting; and • Continue exploring new potential areas for cooperation, identifying action items and establishing priorities for further consideration.