European Single Market in the context of "Switzerland"

The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The Union has a total area of 4,233,255 km (1,634,469 sq mi) and an estimated population of more than 450 million as of 2025. The EU is often described as a sui generis political entity combining characteristics of both a federation and a confederation.

Containing 5.5% of the world population in 2023, EU member states generated a nominal gross domestic product (GDP) of around €17.935 trillion in 2024, accounting for approximately one sixth of global economic output. Its cornerstone, the Customs Union, paved the way to establishing an internal single market based on standardised legal framework and legislation that applies in all member states in those matters, and only those matters, where the states have agreed to act as one. EU policies aim to ensure the free movement of people, goods, services and capital within the internal market; enact legislation in justice and home affairs; and maintain common policies on trade, agriculture, fisheries, and regional development.

The European Union's (EU) Common Commercial Policy, or EU Trade Policy, is the policy whereby EU Member States delegate authority to the European Commission to negotiate their external trade relations, with the aim of increasing trade amongst themselves and their bargaining power vis-à-vis the rest of the world. The Common Commercial Policy is logically necessitated by the existence of the Customs Union, which in turn is also the foundation upon which the Single Market and Monetary Union were later established.

Switzerland is not a member state of the European Union (EU). It is associated with the Union through a series of bilateral treaties in which Switzerland has adopted various provisions of European Union law in order to participate in the Union's single market, without joining as a member state. Among Switzerland's neighbouring countries, all but one (the microstate Liechtenstein) are EU member states.

The freedom of movement for workers is a policy chapter of the acquis communautaire of the European Union. The free movement of workers means that nationals of any member state of the European Union can take up an employment in another member state on the same conditions as the nationals of that particular member state. In particular, no discrimination based on nationality is allowed. It is part of the free movement of persons and one of the four economic freedoms: free movement of goods, services, labour and capital. Article 45 TFEU (ex 39 and 48) states that:

The right to free movement has both 'horizontal' and 'vertical' direct effect, such that a citizen of any EU state can invoke the right, without more, in an ordinary court, against other persons, both governmental and non-governmental.

The Deep and Comprehensive Free Trade Areas (DCFTA) are three free trade areas established between the European Union, and Georgia, Moldova, and Ukraine respectively. The DCFTAs are part of each country's EU Association Agreement. They allow Georgia, Moldova, and Ukraine access to the European Single Market in selected sectors and grant EU investors in those sectors the same regulatory environment in the associated country as in the EU. The agreements with Moldova and Georgia have been ratified and officially entered into force in July 2016, although parts of them were already provisionally applied. The agreement with Ukraine was provisionally applied since 1 January 2016 and formally entered into force on 1 September 2017.

Unlike standard free trade areas, the DCFTA is aimed to offer the associated country the "four freedoms" of the EU Single Market: free movement of goods, services, capital, and people. Movement of people however, is in form of visa-free regime for short stay travel, while movement of workers remains within the remit of the EU Member States. The DCFTA is an "example of the integration of a Non-EEA-Member into the EU Single Market".

The Republic of Ireland–United Kingdom border, sometimes referred to as the Irish border or British–Irish border, runs for 499 km (310 mi) from Lough Foyle in the north-west of Ireland to Carlingford Lough in the north-east, separating the Republic of Ireland from Northern Ireland.

Border markings are inconspicuous, in common with many inter-state borders in the European Union. As the two states share a Common Travel Area and (as of 2021) Northern Ireland (the only exception within the UK and only in some respects) and the Republic of Ireland are participants in the European Single Market, the border is essentially an open one, allowing free passage of people since 1923 and of goods since 1993. There are circa 270 public roads that cross the border. Following the United Kingdom's exit from the European Union, this border is also the frontier between the EU and a non-member country. The Brexit withdrawal agreement commits all involved parties to maintaining an open border in Ireland, so that (in many respects) the trade frontier is the Irish Sea between the two islands. This de facto division of the United Kingdom is described, especially by Unionists, as "the Irish Sea border".