Moderator: Diana Ballestas de Dietrich, Legal Officer, Legal Services Section, LEG/REL, CTBTO a) Treaty obligations and implementation requirements from a practical perspective (Natalie Brely, Chief, Monitoring Facilities Support Section, IMS, CTBTO) b) National perspective on measures to ensure efficiency (Ambassador Samuel M. Gitonga, Ambassador/Deputy Representative of the Embassy/Permanent Mission of the Republic of Kenya, Ichitomo Taninai, Counsellor of the Permanent Mission of Japan, Natalia Ferro, Officer, Nuclear Regulatory Authority of the Republic of Argentina) c) OPCW: Lessons learned for effective treaty implementation (Mark Albon, Director, International Cooperation and Assistance, OPCW)