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Glossary

Subsidiarity

constitutionalinternational

The principle that decisions should be taken at the lowest effective level of government.

In more detail

Central to EU law under Article 5 TEU, subsidiarity requires the Union to act only where objectives cannot be sufficiently achieved by member states. Federal systems apply comparable reasoning when allocating competence between national and sub-national authorities.

Related terms

  • federalism
  • proportionality

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