Details the related services required under IDEA to support children with disabilities in benefiting from special education. It includes transportation, speech-language pathology, audiology, interpreting, psychological and medical services, physical and occupational therapy, therapeutic recreation, early identification, counseling, orientation and mobility, school health and nursing, social work, and parent counseling, while also clarifying exceptions for surgically implanted devices, outlining implementation responsibilities, and providing detailed explanations of each service to inform parents and students.