The to the 1961 Convention classifies narcotic drugs in four Schedules: Schedules Harmfulness Degree of control Examples of listed drugs I Substances with addictive properties, presenting a serious risk of abuse Very strict; 'the drugs in Schedule I are subject to all measures of control applicable to drugs under this Convention' (art. The EU system European Union legislation establishing different classes of substances is limited to the EU Regulations that define classes of precursors, stemming from the EU objectives of free movement of goods.
These are the, which regulates intra-Community trade, and by the. While European Union legislation does not establish different classes of narcotic or psychotropic substances, the, can provoke a Council Decision requiring countries to put a drug under national controls equivalent to those controls for substances listed in the UN Conventions of 1961 and 1971. Risk assessments under the 2005 Council Decision resulted in pan-European controls for BZP and mephedrone. The mechanism is described in detail by the in the.