Internationally, conduct problems are one of the most common reasons children and families seek help from mental health services. Evidence-based treatments for childhood conduct problems are available, and they are some of the more effective psychological treatments in existence. However, for complex reasons, relatively few clinicians routinely deliver these treatments. This research-to-practice gap is unfortunately common internationally - across both physical health and mental health settings - and has led to the establishment of the field of implementation science. This project will explore how to better implement an existing evidence-based treatment for childhood conduct problems, making this treatment, and others like it, more available to families in New Zealand.