No customs? Switzerland is NOT part of the European Union Customs Union. Check out https://en.wikipedia.org/wiki/European_Union_Customs_Union https://en.wikipe

No customs? Switzerland is NOT part of the European Union Customs Union. Check out https://en.wikipedia.org/wiki/European_Union_Customs_Union https://en.wikipedia.org/wiki/European_Union_Customs_Union for further information. Etc. And there is not the whole package up for renegotiation, only 7 of 100+ bilateral agreements between the EU and Switzerland.