Book excerpt: The National Health System in the United Kingdom has supported the integration of CM because of its evidence basis. CM has recently been implemented in clinics in Spain, the Netherlands, and Israel, and the author has been asked to consult on its integration in treatment settings in Canada, South Africa, Turkey, China, and Australia. The completion of the National Institute on Drug Abuse Clinical Trials Network study of CM interventions has raised awareness and interest throughout the US and abroad, most notably in Canada and the UK.