Determination of the result of the vote 

1 Blank and invalid ballot papers shall be disregarded when determining the result of the vote.

2 Where the yes-votes in a canton are equal in number to the no-votes, the vote of that canton shall be counted towards the cantons voting no.

3 A very close result only requires a recount if there are credible allegations of irregularities that by their nature and extent could have influenced the federal result.