changed, and in such cases, it shall be publicly announced immediately. <Amended on Apr. 30, 1998> (2) A Gu/Si/Gun election commission may set up two or more counting centers. <Newly Inserted on Feb. 16, 2000> (3) Article 147 (3) shall apply mutatis mutandis to the counting center. <Newly Inserted on Mar. 12, 2004> (4) Procedures for and methods of ballot-counting where two or more counting centers are set up, and other necessary matters shall be prescribed by the National Election Commission Regulations. <Newly Inserted on Feb. 16, 2000> Article 174 (Counting Staff) (1) A Gu/Si/Gun election commission shall appoint counting staff to assist in ballot-counting affairs. <Amended on Apr. 6, 2018> (2) Counting staff shall be commissioned from among the persons falling under Article 147 (9) 1 through 4 or the impartial and neutral persons. <Amended on Mar. 12, 2004> (3) Upon receipt of a request from an election commission to recommend counting staff, the head of an institution or organization specified in any provision of Article 147 (9) 1 through 4 shall comply with the request preferentially. <Newly Inserted on Feb. 13, 2014> (4) Deleted. <Mar. 12, 2004> Article 175 (Commencement of Ballot Counting) (1) Deleted. <Mar. 12, 2004> (2) Where two or more constituencies exist in the extent of jurisdiction, the Gu/Si/Gun election commission shall count the ballots by the unit of constituency. <Amended on Feb. 16, 2000; Mar. 12, 2004> Article 176 (Receipt of Delivered Early Votes, Home Votes, and Shipboard Votes and Counting thereof) (1) Upon receipt of early votes, home votes, and shipboard votes delivered by mail, a Gu/Si/Gun election commission shall immediately put them into mail ballot boxes in the presence of the party-recommended members of the Gu/Si/Gun election commission and keep them safe. <Amended on Aug. 4, 2005; Jan. 17, 2014> (2) Upon receipt of early voting ballot boxes transferred in accordance with Article 158 (6) 2, a Gu/Si/Gun election commission shall inspect the closing and sealing of the ballot boxes in the presence of the partyrecommended members of the Gu/Si/Gun election commission and keep them safe. <Newly Inserted on Jan. 17, 2014> (3) The ballot boxes delivered by mail as referred to in paragraph (1) and the early voting ballot boxes as referred to in paragraph (2) shall be kept in places where visual data processing devices defined in subparagraph 7 of Article 2 of the Personal Information Protection Act are installed, and the relevant visual data shall be kept until six months elapse from the relevant election day. <Newly Inserted on Mar. 26,