Treaties of the European Union in the context of "Member State of the European Union"

The European Union (EU) is a supranational union of 27 member states that are party to the EU's founding treaties, and thereby subject to the privileges and obligations of membership. They have agreed by the treaties to share their own sovereignty through the institutions of the European Union in certain aspects of government. State governments must agree unanimously in the Council for the union to adopt some policies; for others, collective decisions are made by qualified majority voting. These obligations and sharing of sovereignty (also known by some as "pooling of sovereignty") within the EU make it unique among international organisations, as it has established its own legal order which by the provisions of the founding treaties is both legally binding and supreme on all the member states (after a landmark ruling of the ECJ in 1964). A founding principle of the union is subsidiarity, meaning that decisions are taken collectively if and only if they cannot realistically be taken individually.

Each member country appoints to the European Commission a European commissioner. The commissioners do not represent their member state, but instead work collectively in the interests of all the member states within the EU.

European Union law is a system of supranational laws operating within the 27 member states of the European Union (EU). Originally referred to as Community law, it has grown over time since the 1952 founding of the European Coal and Steel Community, to promote peace, social justice, a social market economy with full employment, and environmental protection. The Treaties of the European Union agreed to by member states form its constitutional structure. EU law is interpreted by, and EU case law is created by, the judicial branch, known collectively as the Court of Justice of the European Union.

Legal Acts of the EU are created by a variety of EU legislative procedures involving the popularly elected European Parliament, the Council of the European Union (which represents member governments), the European Commission (a cabinet which is elected jointly by the Council and Parliament) and sometimes the European Council (composed of heads of state). Only the Commission has the right to propose legislation.

The institutions of the European Union are the seven principal decision-making bodies of the European Union and Euratom governed under the Treaties of the European Union and European Union law. They are, as listed in Article 13 of the Treaty on the European Union:

• the European Parliament,
• the European Council (of heads of state or government),
• the Council of the European Union (of member state ministers, a council for each area of responsibility),
• the European Commission,
• the Court of Justice of the European Union,
• the European Central Bank and
• the European Court of Auditors.

Institutions are distinct from both advisory bodies to the European Union and agencies of the European Union.

The procedures for voting in the Council of the European Union are described in the treaties of the European Union. The Council of the European Union (or simply "Council" or "Council of Ministers") has had its voting procedure amended by subsequent treaties and currently operates on the system set forth in the Treaty of Lisbon. The system is known as qualified majority voting is a type of consociational democracy.

The European Economic Area (EEA) was established via the Agreement on the European Economic Area, an international agreement which enables the extension of the European Union's single market to member states of the European Free Trade Association (EFTA). The EEA links the EU member states and three of the four EFTA states (Iceland, Liechtenstein, and Norway) into an internal market governed by the same EU laws. These rules aim to enable free movement of persons, goods, services, and capital within the European single market, including the freedom to choose residence in any country within this area. The EEA was established on 1 January 1994 upon entry into force of the EEA Agreement. The contracting parties are the EU, its member states, and Iceland, Liechtenstein, and Norway. New members of EFTA would not automatically become party to the EEA Agreement, as each EFTA State decides on its own whether it applies to be party to the EEA Agreement or not. According to Article 128 of the EEA Agreement, "any European State becoming a member of the Community shall, and the Swiss Confederation or any European State becoming a member of EFTA may, apply to become a party to this Agreement. It shall address its application to the EEA Council." EFTA does not envisage political integration. It does not issue legislation, nor does it establish a customs union. Schengen is not a part of the EEA Agreement. However, all of the four EFTA States participate in Schengen and Dublin through bilateral agreements. They all apply the provisions of the relevant acquis.

The EEA Agreement is a commercial treaty and differs from the EU Treaties in certain key respects. According to Article 1 its purpose is to "promote a continuous and balanced strengthening of trade and economic relation". The EFTA members do not participate in the Common Agricultural Policy or the Common Fisheries Policy.

Legal acts of the European Union are actions which are adopted by the institutions of the European Union in order to exercise the powers given to them by the EU Treaties. The treaties form the "primary law" of the EU, while regulations, directives, decisions, recommendations and opinions constitute the Union's "secondary law".

Regulations, directives and decisions are binding legal acts. Recommendations and opinions are non-legislative acts which have no binding effect on the EU member states or institutions.