According to the European Commission, legislation is divided into two classes:
Treaties are the European Union’s primary legislation, comparable to constitutional law in many countries. They establish the fundamental features of the Union, in particular the responsibilities of decision-making bodies and legislative procedures. Treaties are negotiated between representatives of member states but must be be ratified, either by national parliaments or via citizen referendum. Below are some major treaties in EU history along with their accompanying legal citations.
The Official Journal (OJ) is the official gazette of the European Union. It contains the texts of secondary legislation, draft legislation and official announcements from EU institutions. It is published in two sections: Legislation (L series) and Information and Notices (C series).
Legislation (L Series)
This series contains the texts of all secondary legislation. The texts can take several forms:
Information and Notices (C Series)
This series contains: