The validity of a company or establishment agreement concluded by the works council is subject to its signature by a majority of the elected full members of the works council or by one or more full members who received more than 50% of the votes cast in the last professional elections. To determine the latter threshold, the votes received in the first round of elections are taken into account for those elected in the first round of elections, and those received in the second round of elections are taken into account for those elected in the second round of elections.