The ATLAS on Substance Use provides a structured description of available prevention and treatment resources for substance use disorders in WHO regions, different income economies and the world.

Chapter 1 introduces the epidemiological aspects of substance use disorders and provides information on the level of need for treatment. Chapter 2 illustrates health service resources. Data on the implementation of pharmacological treatment for substance use disorders are presented in chapter 3. Chapter 4 covers human resource aspects. Policy and legal resources are discussed in chapter 5, before concluding with resources for the prevention of substance use in chapter 6. The ATLAS report is based on a survey instrument and has been accomplished through collaboration with WHO regional and country offices, national focal points and a number of leading experts in the field of psychoactive substance use.