![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Supranational_European_Bodies.svg/640px-Supranational_European_Bodies.svg.png&w=640&q=50)
Differentiated integration
Opt-out mechanism for states on EU policies / From Wikipedia, the free encyclopedia
For differentiating the integral of a mathematical function, see First fundamental theorem of calculus and Leibniz integral rule.
Differentiated integration (DI) is a mechanism that gives countries the possibility to opt out of certain European Union policies while other countries can further engage and adopt them. This mechanism theoretically encourages the process of European integration. It prevents policies that may be in the interest of most states to get blocked or only get adopted in a weaker form.[1] As a result, policies are not implemented uniformly in the EU. In some definitions of differentiated integration, it is legally codified in EU acts and treaties, through the enhanced cooperation procedure, but it can also be the result of treaties which have been agreed to externally to the EU's framework, for example in the case of the Schengen Agreement.[2]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Supranational_European_Bodies.svg/400px-Supranational_European_Bodies.svg.png)
A Euler diagram showing the relationships between various multinational European organisations and agreements