The European Union sets the regulatory and policy framework that shapes much of the legal landscape for psychoactive plants, cannabis-derived products, novel psychoactive substances and harm reduction services across its member states. EU institutions also fund scientific research, coordinate drug-related agencies such as the EUDA (formerly EMCDDA), and influence international debates at the United Nations. ICEERS gathers here content on EU policies, directives and processes relevant to traditional medicines, drug policy and access to health.