Students who are deaf-blind have absent, partial, or distorted vision and hearing. Deaf-blindness severely limits access to visual and auditory information that forms the basis for learning and communication and creates challenges for educational systems mandated to provide free and appropriate education in the least restrictive environment. Intervener services are a way to meet the challenge of providing students who are deaf-blind with access to information they are unable to gather via vision and hearing and to help them compensate for the difficulties with communication and concept development that occur as a result of sensory deprivation. The purpose of this discussion guide is to help IEP teams make informed decisions about whether intervener services are appropriate for a particular student. [This guide was developed by Deaf-Blind Network Partners and National Center on Deaf-Blindness staff.]