([DEA, European Nationals in Switzerland, 2013, p. 16, Internet](http://www.europa.admin.ch/dienstleistungen/00553/index.html?lang=en))
People from Bulgaria and Romania providing services in the four special sectors of construction and construction-related industries, landscaping, industrial cleaning, and security industries still require a short-term residence permit until 31 May 2016 at the latest and are also subject to labour market restrictions [...]