answers: no restriction on multiple citizenship
context: rights have been granted to non-citizens by subnational governments, the first being Neuchâtel in 1849, then Jura in 1978 and several others afterwards. Because Switzerland is a federal state with three different levels – the Confederation, the 26 cantons and their local communes – non-citizen voting rights vary greatly depending on the individual entity. Foreigners may not cast ballots on the national level, but they may be entitled to vote and, in some cases, to run for office on the cantonal or communal level. Five cantons have already recognized the right of foreigners to vote (Neuchâtel, Jura, Vaud in 2003, </s> they live to get a certificate of citizenship ("acte d'origine/Heimatschein/atto d'origine") from their place of origin. The constitution forbids discrimination based on one's place of origin, with the exception of bourgeoisies. According to the Federal Office for Migration, there has been no restriction on multiple citizenship in Switzerland since 1 January 1992. Thus, foreigners who acquire Swiss citizenship and Swiss citizens who voluntarily acquire another citizenship keep their previous citizenship (subject to the laws of the other country), as was the case before this date. An estimated 60% of Swiss nationals living abroad in 1998 were multiple citizens. Since many </s> voluntarily). Male citizens who do not complete their military service or who do not do civilian service must pay a supplementary tax. Swiss citizens are not allowed to work for a foreign (non-Swiss) military, unless they are a citizen of - and are resident in - the country in question. The Swiss Guards of the Vatican State are regarded as a house policy, not as an army. Visa requirements for Swiss citizens are administrative entry restrictions by the authorities of other states placed on citizens of Switzerland. In May 2018, Swiss citizens had visa-free or visa-on-arrival access to 185 countries
question: how many citizenships can you have in switzerland