When towns or villages have established a welfare office by setting up a partial-affairs association or a wide area union, said partial-affairs association or wide area union shall be deemed to be a town or village with a welfare office and the manager of said partial-affairs association (or, for a partial-affairs association under Article 285 of the Local Autonomy Act (Act No. 67 of 1947) that has a board of directors in place of a manager pursuant to Article 287-3, paragraph (2) of that Act, the board of directors) or the head of said wide area union (or, for a wide area union that has a board of directors in place of a head pursuant to Article 287-3, paragraph (2) of that Act as applied mutatis mutandis pursuant to Article 291-13 of that Act, the board of directors) shall be deemed to be the mayor of a town or village managing a welfare office, with regard to application of this Act.
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