The WHO Global Health Observatory data topic reports country-level indicators on the availability of resources for substance use disorders among children and adolescents. It covers three indicators: whether a national epidemiological surveillance system exists for tracking alcohol and drug use among youth, and whether treatment programs exist for children and adolescents with alcohol use disorders or drug use disorders. Data is collected periodically via the WHO ATLAS survey on resources for the prevention and treatment of substance use disorders, with responses provided by national health authorities. Data is accessible through the GHO data portal and API.