How the EU works
All members of countries elect Members of the European Parliament (MEPs).
European Parliament (EP) has 732 members altogether.
The UK has 646 MPs and 78 MEPs.
Discusses proposals put forward by European Commission
Enforces EU regulations
Can call for existing policies to be changed or new ones launched.
Proposes new regulations
Makes sure EU regulations are carried out
Oversees EU administration
The court of justice:
Decides whether European regulations have been broken