Directive 2006/121/EC of the European Parliament and of the Council of 18 December 2006 amending Council Directive 67/548/EEC on the approximation of laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances in order to adapt it to Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) and establishing a European Chemicals Agency
Treaty establishing the European Community (Nice consolidated version) Part Three: Community policies Title VI: Common rules on competition, taxation and approximation of laws Chapter 3: Approximation of laws Article 95 Article 100a - EC Treaty (Maastricht consolidated version)
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)