Directive 2004/107/EC of the European Parliament and of the Council of 15 December 2004 relating to arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons in ambient air
Treaty establishing the European Community (Nice consolidated version) Part Five: Institutions of the Community Title I: Provisions governing the institutions Chapter 2: Provisions common to several institutions Article 251 Article 189b - EC Treaty (Maastricht consolidated version)
Treaty establishing the European Community (Nice consolidated version) Part Three: Community policies Title XIX: Environment Article 175 Article 130s - EC Treaty (Maastricht consolidated version)