This document provides instructions for an Arkansas tax certificate for developmentally disabled individuals. It allows taxpayers to claim a $500 tax credit for qualified individuals who are their blood relatives, adopted children, or dependents. To qualify for the credit, the individual must have a developmental disability like cerebral palsy, epilepsy, autism, or intellectual disability. They must also depend on the taxpayer for over 50% of their support and care. A doctor must certify the individual's diagnosis of a developmental disability on the form.