①Among persons prescribed in Article 4 of the Supplementary Provisions of the Act Partially Amending the Employees' Pension Insurance Act and the Mariners Insurance Act (Act No. 78 of 1969; hereinafter referred to as "Act No. 78 as amended") as amended by the provisions of Article 9 of the Act Partially Amending the National Pension Act, etc. (Act No. 18 of 2000; hereinafter in this paragraph referred to as the "2000 Amendment Act"), the average standardized monthly amount of remuneration under the Employees' Pension Insurance Act (meaning the average standardized monthly amount of remuneration prescribed in Article 43, paragraph (1) of the Employees' Pension Insurance Act prior to its amendment by the provisions of Article 6 of the 2000 Amendment Act (hereinafter in this paragraph referred to as "Article 43, paragraph (1) before the amendment"), and excluding the average standardized monthly amount of remuneration prescribed in Article 70, paragraph (1) of the Employees' Pension Insurance Act prior to its amendment by the provisions of Article 3 of the Act Partially Amending the National Pension Act, etc. (Act No. 34 of 1985), in respect of which the provisions then in force continue to govern pursuant to Article 132, paragraph (2) of the Employees' Pension Insurance Act, Article 29, paragraph (3) of the Supplementary Provisions of that Act and Article 78, paragraph (1) of the Supplementary Provisions of the Act Partially Amending the National Pension Act, etc. (Act No. 34 of 1985)) of a person who has a period of having been an insured prescribed in item (ii) is, notwithstanding Article 20, paragraph (1), item (i) of the Supplementary Provisions of the 2000 Amendment Act and Article 43, paragraph (1) before the amendment, the amount obtained by dividing the total of the amounts set forth below by the number of months of the person's insured period under employees' pension insurance:

②For the application of the preceding paragraph to a person prescribed in Article 4, paragraph (1) or (2) of the Supplementary Provisions of Act No. 78 who has a period of having been an insured under Mariners Insurance under the Mariners Insurance Act prior to its amendment by the provisions of Article 5 of the Act Partially Amending the National Pension Act, etc. that was deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 47, paragraph (1) of the Supplementary Provisions of that Act, in the part of paragraph (1) other than the items, the phrase "Article 70, paragraph (1) of the Employees' Pension Insurance Act" is deemed to be replaced with "Article 70, paragraph (1) of the Employees' Pension Insurance Act and Article 47 of the Mariners Insurance Act prior to its amendment by the provisions of Article 5 of the Act Partially Amending the National Pension Act, etc., in respect of which the provisions then in force continue to govern pursuant to the provisions of Article 87, paragraph (1) of the Supplementary Provisions of that Act", and the phrase "insured period" is deemed to be replaced with "insured period (including that relating to a period deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 47, paragraph (1) of the Supplementary Provisions of the Act Partially Amending the National Pension Act, etc.; the same applies hereinafter in this Article)".

③For the application of paragraph (1) to a person prescribed in Article 4, paragraph (1) or (2) of the Supplementary Provisions of Act No. 78 who has a period deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 5, paragraph (1) of the Supplementary Provisions of the Act Partially Amending the Employees' Pension Insurance Act, etc. (Act No. 82 of 1996), in the part of paragraph (1) other than the items, the phrase "insured period" is deemed to be replaced with "insured period (including that relating to a period deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 5, paragraph (1) of the Supplementary Provisions of the Act Partially Amending the Employees' Pension Insurance Act, etc. (Act No. 82 of 1996); the same applies hereinafter in this Article)".

④For the application of paragraph (1) to a person prescribed in Article 4, paragraph (1) or (2) of the Supplementary Provisions of Act No. 78 who has a period deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 6 of the Supplementary Provisions of the Act to Abolish, etc. the Mutual Aid Association Act for Employees of Agricultural, Forestry and Fishery Organizations, etc. for the Purpose of Integrating the Employees' Pension Insurance System and the Mutual Aid Association System for Employees of Agricultural, Forestry and Fishery Organizations (Act No. 101 of 2001), in the part of paragraph (1) other than the items, the phrase "insured period" is deemed to be replaced with "insured period (including that relating to a period deemed to be a period of having been an insured covered by employees' pension insurance pursuant to the provisions of Article 6 of the Supplementary Provisions of the Act to Abolish, etc. the Mutual Aid Association Act for Employees of Agricultural, Forestry and Fishery Organizations, etc. for the Purpose of Integrating the Employees' Pension Insurance System and the Mutual Aid Association System for Employees of Agricultural, Forestry and Fishery Organizations (Act No. 101 of 2001); the same applies hereinafter in this Article)".