The document discusses the history and development of the intervener profession for children who are deafblind. It describes how early efforts focused on establishing common terminology, defining the intervener role, and developing national competencies and training standards. Over time, these efforts led to the formation of the National Intervener Task Force and establishment of the intervener specialty within the Council for Exceptional Children. The goal is to professionalize the field and establish interveners as related service providers to improve support and outcomes for children who are deafblind.