When an employer makes a change to the corporate-type pension plan rules (limited to the minor change specified by Order of the Ministry of Health, Labour and Welfare as referred to in paragraph (1) of the preceding Article), the employer must give notification of that change to the Minister of Health, Labour and Welfare without delay; provided, however, that this does not apply to a change to the matters set forth in Article 3, paragraph (3), item (v) or any other matter specified by Order of the Ministry of Health, Labour and Welfare.
The provisions of Article 4, paragraph (3) and paragraphs (2) and (3) of the preceding Article apply mutatis mutandis to the change referred to in the preceding paragraph; provided, however, that the provisions of paragraphs (2) and (3) of the preceding Article do not apply if the change is the minor change specified by Order of the Ministry of Health, Labour and Welfare as referred to in paragraph (1) of that Article, which is specified by Order of the Ministry of Health, Labour and Welfare as being particularly minor.
Read this with the articles around it