Inclusion Criteria:  For mental health clinician participants:  1. Clinicians will regularly treat at least some youth with ASD within a recognized field of practice (e.g., clinical psychology, counseling, marital and family therapy, social work) and will serve youth with ASD referred by participating agencies.  For children/youth:  Youth is referred by a participating agency, including a contract with the treating clinician to receive payment for the treatment by the agency or its proxy (i.e., not as a private practice referral). Youth will have a pre-existing clinical diagnosis of ASD made by an appropriate licensed professional (e.g., clinical psychologist, developmental pediatrician). The parent-reported Social Responsive Scale-2 (SRS-2; Constantino & Gruber, 2012) Total T-Score will be > 60. Youth will meet criteria for clinically significant emotion dysregulation symptoms as defined by a minimum score of 18 on the Aberrant Behavior Checklist-2 Irritability subscale (this is a standard entry criterion for many ASD clinical trials; Fung et al., 2016). Youth has a Vineland Adaptive Behavior Scales-3 Communication Composite Standard Score > 60.  Exclusion Criteria:  1. For participants presenting with severe comorbid symptomology (e.g., psychotic symptoms), the comorbid conditions cannot be sufficiently severe to warrant immediate treatment or require ongoing medication titration.