In response to interest from the National Professional Development Center on Autism Spectrum Disorders (NPDC-ASD), NECTAC queried state Part C and Section 619 coordinators regarding screening measures, diagnostic instruments and procedures, and trends in identifying young children with ASD under the age of five years. NECTAC collaborated with the NPDC-ASD to develop and refine a series of questions and then to conduct an on-line survey during a two week period in November 2008. The survey was opened again in August 2009 to allow responses from additional states. Individual states are not identified in this report.