1903 Swiss referendums

Four referendums were held in Switzerland during 1903.^[1] The first was held on 15 March on a federal law on tariffs, and was approved by 59.6% of voters.^[1] The second, third and fourth were all held on 25 October concerning an amendment to the federal criminal law, a popular initiative on Swiss residents electing the National Council and an amendment to article 32bis of the constitution.^[1] All three were rejected by voters.^[1]

The referendums on tariffs and the federal criminal law were optional referendums,^[1] which required only a majority of the public vote.^[2] The referendum on the changes to National Council elections was popular initiative and the referendum on the constitutional amendment was a mandatory referendum,^[1] both of which required a double majority; a majority of the popular vote and majority of the cantons.^[2] The decision of each canton was based on the vote in that canton.^[2] Full cantons counted as one vote, whilst half cantons counted as half.^[2]