Osassa maista, kuten Belgiassa, korvaushoidosta säädetään erityislaissa; osassa, esimerkiksi Kyproksessa, sen toteutukseen sovelletaan valvotuista aineista annettuja lakeja. ###>In some countries, e.g. Belgium, substitution treatment is covered by a specific parliamentary law, while in others, e.g. Cyprus, its implementation is subject to interpretation of the laws on controlled substances.