Primary legislation of the EU comprises treaties concerning the structure and function of the EU, plus accession treaties admitting new member states. The original founding treaties were:
Other primary legislation includes the Single European Act (1986), the Treaty of Amsterdam (1997) and the Treaty of Lisbon (2007). Lisbon came into force on 1 December 2009; see Europa website for further details.
There are three types of secondary legislation: directives, regulations and decisions. Examples of each, with document reference numbers, are as follows:
Two-digit years were used in these reference numbers until 1999.
Each member state has to implement directives in its own law. The UK normally implements directives by means of statutory instruments, although occasionally an act of Parliament is used.
The official series of EU law reports is Reports of Cases before the Court of Justice and the Court of First Instance, usually known as the 'European Court Reports' (ECR). The print edition covers cases heard from 1954 to 2011; it ceased publication in Spring 2014, after the last volume of 2011 cases came out.