It is further the intent of the Legislature that there shall be a single line of responsibility with regard to the education of all handicapped children as required by Public Law 94-142. The Superintendent of Public Instruction shall be responsible for supervising education and related services for handicapped children specifically required pursuant to the federal requirements under the Education for All Handicapped Children Act of 1975, Public Law 94-142. Nothing in this chapter shall be construed to relieve another state agency from an otherwise valid obligation to provide or pay for services to a handicapped child. Furthermore, nothing in this chapter shall be interpreted so as to allow the Superintendent of Public Instruction to prescribe health care services.