Specialized psychological and pharmacological treatments for obsessive-compulsive disorder throughout the lifespan: a special series by the Accreditation Task Force (ATF) of The Canadian Institute for Obsessive Compulsive Disorders (CIOCD, www.ciocd.ca)

• Special series by the Accreditation Task Force (ATF) of The CIOCD (www.ciocd.ca).
• Treatment for enduring or complex OCD is a highly specialized field.
• Evidence based treatments reviewed are not accessible to many OCD sufferers.
• ATF mandate is to establish specialty OCD certification/accreditation standards.
• ATF aim is transformative change in accessibility to evidence based OCD treatments.

The World Health Organization ranks obsessive compulsive disorder (OCD) among the leading causes of worldwide medical disability. Affecting approximately 3% of the population, OCD, with its damaging effect on psychosocial function, is among the most severe and impairing of mental disorders. In Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5), OCD and related disorders form a separate classification, consistent with convergent research that indicates OCD is distinct from anxiety disorders in psychopathology and treatment requirements. Although evidence-based treatments have been developed for OCD, these are not accessible to many sufferers. Timely evidence-based treatment is recommended to avoid unnecessary progression to chronicity, disability, and intransigence of symptoms. Improvement in existing training models is needed to disseminate advanced specialty clinical skills to optimize illness recovery. This special series by The Canadian Institute for Obsessive Compulsive Disorders (CIOCD) Accreditation Task Force (ATF) critically reviews evidence-based psychological and pharmacological treatments for OCD throughout the lifespan. The ATF mandate is to establish specialty OCD certification/accreditation standards and competencies. This pioneering initiative aims to achieve transformational change in accessibility to evidence-based clinical care so urgently needed for young people and adults suffering from OCD.