Leading specialist on radiation safety from NRSC Arpi Khachatryan participated in the Technical Meeting held in Vienna, where a discussion was held on the potential effects of introducing new operational quantities and units of external radiation measurements, presented in the 95th Report of the Implications of the International Commission on Radiation Units and Measurements (ICRU). Issues discussed included the benefits of introducing new metrics, implementation challenges, and the time needed to adopt them. In her speech, Arpi Khachatryan referred to the challenges in the field of radiation safety that small countries like Armenia face. NRSC continues its active participation in international discussions and is committed to being an active player in supporting the development of radiation protection standards.