Competency to Decide for Another

Our topic is competency of a Substitute Decisionmaker (SubDM) to make a decision about medical treatment for another who is incompetent himself (the “ward”). While there is Competency to Decide for Another considerable literature on competency to decide for oneself, there is very little on competency to decide for another. Some studies look at a range of things that a SubDM needs to do —for example, seek information on what the ward has said—but there is none on how well a person must understand the relevant issues to be a competent SubDM.