Summary

Consolidated version of the Treaty on the Functioning of the European Union… (2007)

When the Treaties confer on the Union a competence shared with the Member States in a specific area, the Union and the Member States may legislate and adopt legally binding acts in that area. The Member States shall exercise their competence to the extent that the Union has not exercised its competence. The Member States shall again exercise their competence to the extent that the Union has decided to cease exercising its competence.
Source: Wikisource

Get perspective with Kwize: daily news enlightened by great literature