legislative period that is due to expire
FA Political Rights, art. 24 para. 3 (SR 161.1, transl., status 2015-11)
The quorums in accordance with paragraph 1 above do not apply to any party that [...] has been represented in the National Council for the same constituency in the legislative period that is due to expire or it achieved at least three per cent of the vote in the same canton at the previous general election.
EXP: of the National Council
FA Political Rights, art. 24 para. 3 (SR 161.1, transl., status 2015-11)