Heightened public awareness of autism and increased prevalence estimates of autism spectrum disorders (ASDs) has generated a sense of urgency within the public school system to identify children with these disorders for targeted intervention. Two multidisciplinary groups of professionals, one each from two separate school districts, were identified and trained to provide diagnostic and consultative services. This paper outlines a model process for school personnel to develop a basic level of training and competence in recognizing and serving students who have an ASD by (1) providing an overview of the legal and clinical issues involved in screening for children with ASD within the school system, (2) defining a school-based professional training process and (3) outlining a school-based ASD screening process.