In postal balloting, voters shall cast ballots issued by the prefectural Administration Committees that are printed on reply-paid postcards.

In this event, voters shall write the candidate’s name in his or her own handwriting, and mail the postcard.

The Party members’ postal balloting shall be closed one day before the vote of Diet members at the post office designated by each prefectural Administration Committee.

The postcards sent by Party member voters shall be kept in the post offices designated by the prefectural Administration Committees until ballot counting day.

If postal balloting or on-site balloting cannot be carried out because of inconvenient transportation (e.g, on islands), or because of unavoidable accidents including national disasters, the said prefectural Administration Committee can determine a different voting method for the voters of those regions.