Developmental Delay means a disability affecting a child ages two by September 30 through six, inclusive who is experiencing developmental delays, as measured by appropriate diagnostic instruments and procedures, in one or more of the following areas: physical development, cognitive development, communication development, social or emotional development, or adaptive development; or who has an established physical or mental condition that has a high probability of resulting in a developmental delay. The delay is not primarily a result of cultural factors, environmental or economic disadvantage, or limited English proficiency. The presence of one or more documented characteristics of the delay has an adverse effect on educational performance and makes it necessary for the student to have specially designed instruction to access and make progress in the general educational activities for this age group.
Children who are eligible for special education services with the disability label of Developmental Delay are provided special education services in accordance with their IEP. Students of preschool age are served in Early Childhood Special Education programs. Students of elementary school age are provided special education services according to their IEP.