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This is EUR-Lex. You can find inter alia the EU's primary and secondary law here. Please, find the Treaty on the Functioning of the European Union (TFEU), Articles 56-62 TFEU and Articles 51-54 TFEU, and Directive 123/2006 of the European Parliament and of the Council of 12 December 2006 on services in the internal market (OJ L 376, 27.12.2006, pp. 36-68). The link: http://eur-lex.europa.eu/en/treaties/index.htm
