C-319/06, Commission v Luxembourg [2008]

• Context: This case also relates to Article 56 TFEU and falls within the framework of the Laval Quartet, focusing on the correct implementation of directives regarding posted workers and the interpretation of public policy exceptions.

• Facts: The European Commission challenged Luxembourg for failing to properly implement the EU Directive concerning the protection of posted workers. The issue was whether Luxembourg’s national regulations conformed to the requirements set by the Directive.

• Outcome: The ECJ found that Luxembourg had not correctly implemented the Directive. The Court emphasised that the public policy exception, which allows member states to apply stricter regulations for posted workers, must be interpreted narrowly. The ruling reinforced the principle that exceptions to the free movement of services should not undermine the fundamental freedoms guaranteed by the EU Treaties.