Anxiety disorders frequently co-occur in youth with autism spectrum disorders. In addition to developing efficacious treatments for anxiety in children with autism spectrum disorders, it is important to examine the transportability of these treatments to real-world settings. Study aims were to (a) train clinicians to deliver Facing Your Fears: Group Therapy for Managing Anxiety in Children with High-Functioning Autism Spectrum Disorders to fidelity and (b) examine feasibility of the program for novel settings. A secondary aim was to examine preliminary youth treatment outcome. Results indicated that clinicians obtained excellent fidelity following a workshop and ongoing consultation. Acceptability ratings indicated that Facing Your Fears Therapy was viewed favorably, and critiques were incorporated into program revisions. Meaningful reductions in anxiety were reported posttreatment for 53% of children. Results support the initial effectiveness and transportability of Facing Your Fears Therapy in new clinical settings.