That depends what you mean by that. In reality there's many international treaties that are administered by the organization people refer to as the EU. Schenge

That depends what you mean by that. In reality there's many international treaties that are administered by the organization people refer to as the EU. Schengen - Free movement of people, goods and capital - Switzerland is part of this Single internal market - Switzerland is 99% part of this Monetary union - Switzerland doesn't take part EU, same name, NOT the same thing, perhaps it should be called "Lisbon treaty countries" (but of course the EU organization would really prefer everyone forget about the Lisbon treaty) - Switzerland chooses on a case-by-case basis to take part or not (of course you could say that in practice every large EU member state has now chosen to select which EU law they're subject to and which they're not subject to. Is that legal? No it isn't. Nobody cares, or at least not in the member state. That now includes France, Germany, Italy and Poland, and, in a way, UK. The way things are currently moving I highly doubt this will reverse in the next decade or so. So, really, the "Swiss way" of EU membership is expanding, not contracting, it's just that the EU really, really hates this happening) Frankly Switzerland is a part of the EU in practice and has the best possible position a country could have in the EU. All the goodies, very few of the costs.