Problematic use of substances

urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Problematic_use_of_substances

The use of one or more psychoactive substances by aviation personnel in a way that: a) constitutes a direct hazard to the user or endangers the lives, health or welfare of others; and/or b) causes or worsens an occupational, social, mental or physical problem or disorder.

Source: ICAO
Synonyms: problematic substance use