(1) The diplomatic mission election office at a diplomatic mission and the parliamentary single-member constituency election office in the settlement of the seat of a parliamentary single-member constituency shall ensure that return envelopes containing a vote can be handed over.

(2) Return envelopes may be dropped in the ballot box under the permanent supervision of the office. Ballot boxes shall be kept at a safe place at the diplomatic mission. Return envelopes may be returned to a diplomatic mission also by mail.

(3) In settlements of the seat of a parliamentary single-member constituency, observers delegated by nominating organisations drawing up a national list may be present at the supervision of the ballot box. Section 5 shall apply to observers.