Mental and behavioural problems during childhood and adolescence are a serious public concern. These problems are currently increasing and this trend is expected to continue over the next 10 years. Different challenges have had to be confronted: implementation of adult transitional care programs, detection of early suffering in childhood, integration and complementary care models, but also care based on an integrated approach in the community. In Belgium, policymakers have reorganized mental health care for children and adolescents into care circuits and a care network that include and support intersectional collaboration and creation of mobile out-reach team for crisis and assertive care. ; SCOPUS: ar.j ; info:eu-repo/semantics/published