 Families in New York State with deaf and hard of hearing children – newborn to age 18 – can apply to RSD directly at any time.Parents of deaf and hard of hearing infants, toddlers and twos (children up to age 3) may request a referral to RSD from their county's Early Intervention program.Families with children age 3 to 5 can request a referral to RSD from their home school district's Committee on Preschool Special Education (CPSE).