The Korea National Institute for Bioethics Policy was established in 2012 to carry out specialized surveys, research, and education on bioethics policy and contribute to having biomedical science and its technologies safely researched, developed, and used in the course of development for prevention and treatment of human diseases. As the life-sustaining treatment decisions system has been implemented since February 2018, our institution is performing the function by being designated as the National Agency for Management of Life-sustaining Treatment to properly manage life-sustaining treatment, decision to withdraw or withhold LST and the implementation thereof.