Applying the Charter of Fundamental Rights of the European Union in law and policymaking at national level

Applying the Charter of Fundamental Rights of the European Union in law and policymaking at national level - Guidance / FRA, 2018.

"As a very modern human rights catalogue containing many rights not found in established bills of rights, the Charter indeed looks good on paper. Those familiar with the main principles of EU law can usually quickly recite that the Charter is always binding on the EU, and binding on Member States only when they are "implementing EU law". But what does this often-quoted language from Article 51 of the Charter actually mean?"