In the case of applying the provisions of the preceding Article to a period on or before March 31, 1986, the phrase "a period relating to premiums treated as not required to be paid under the provisions relating to that specified procedure" in paragraph (6) of that Article is deemed to be replaced with "the premium exemption period prescribed in Article 5, paragraph (4) before the revision under the provisions of Article 1 of the 1985 Amendment Act", and, beyond that, matters necessary concerning the application of the provisions of that Article are specified by Cabinet Order.

①An insured person or a person who was an insured person may, when having a period falling under any of the following items (excluding a premium-paid period; referred to in paragraph (3) as "the applicable period"), make a request to that effect to the Minister of Health, Labour and Welfare.

②The Minister of Health, Labour and Welfare is, when finding that the request under the preceding paragraph (limited to one relating to item (i) of that paragraph) is well-founded, or when there has been a request under that paragraph (limited to one relating to item (ii) or item (iii) of that paragraph), to approve that request.

③A person who made the request under paragraph (1) may, when having received approval under the provisions of the preceding paragraph, pay, for each month of the applicable period to which that approval relates, the premium in the amount equivalent to the premium for each such month (hereinafter referred to in this Article as the "special premium").

④Where the premium that a person who made the request under paragraph (1) (limited to one relating to item (i) of that paragraph) became unable to pay due to a specified reason is the specified premium or any other premium specified by Cabinet Order, the amount of the special premium is, notwithstanding the provisions of the preceding paragraph, the amount specified by Cabinet Order.

⑤Payment of the special premium under the provisions of paragraph (3) is to be made in order, starting with the special premium relating to the premium for the month that elapsed earliest.

⑥Where payment of the special premium is made under the provisions of paragraph (3), the premium for the month to which the payment relates is deemed to have been paid on the day of the request under paragraph (1).

⑦Where a person entitled to receive an old-age basic pension makes payment of the special premium under the provisions of paragraph (3), the amount of the pension is revised from the month following the month that includes the day of the request under paragraph (1).

⑧For the purpose of applying the provisions of Article 18 of the Supplementary Provisions of the 1985 Amendment Act to a person who has paid the special premium under the provisions of paragraph (3), the phrase "the insured period of the National Pension on and after that day" in paragraph (1) of that Article is deemed to be replaced with "the premium-paid period or premium exemption period arising, on and after that day, from payment made under the provisions of Article 9-4-9, paragraph (3) of the Supplementary Provisions of that Act".

⑨The provisions of Article 9-4-7, paragraphs (9) and (10) of the Supplementary Provisions apply mutatis mutandis to approval under the provisions of paragraph (2).

⑩Beyond what is provided for in the preceding paragraphs, the procedure for the request under paragraph (1) and any other matters necessary concerning the application of the provisions of the preceding paragraphs are specified by Cabinet Order.

①An insured person or a person who was an insured person may, when having a period falling under any of the following items (excluding a premium-paid period relating to the additional premium; referred to in paragraph (3) as the "period eligible for additional premiums"), make a request to that effect to the Minister of Health, Labour and Welfare.

②The Minister of Health, Labour and Welfare is, when finding that the request under the preceding paragraph (limited to one relating to item (i) of that paragraph) is well-founded, or when there has been a request under that paragraph (limited to one relating to item (ii) of that paragraph), to approve that request.

③A person who made the request under paragraph (1) may, when having received approval under the provisions of the preceding paragraph, pay, for each month of the period eligible for additional premiums to which that approval relates, the premium in the amount equivalent to the additional premium for each such month (referred to in the following paragraph and paragraph (6) as the "special additional premium").

④Payment of the special additional premium under the provisions of the preceding paragraph may be made only for a month for which payment of the premium has been made.

⑤The provisions of paragraph (5) through paragraph (7) of the preceding Article apply mutatis mutandis to the case referred to in paragraph (3).

⑥For the purpose of applying the provisions of Article 43 in a case where a person entitled to receive an old-age basic pension (excluding a person who has a premium-paid period relating to the additional premium) has made payment of the special additional premium under the provisions of paragraph (3), the phrase "acquired the right to receive an old-age basic pension" in that Article is deemed to be replaced with "made the request under the provisions of Article 9-4-10, paragraph (1) of the Supplementary Provisions".

⑦The provisions of Article 9-4-7, paragraphs (9) and (10) of the Supplementary Provisions apply mutatis mutandis to approval under the provisions of paragraph (2).

⑧Beyond what is provided for in the preceding paragraphs, the procedure for the request under paragraph (1) and any other matters necessary concerning the application of the provisions of the preceding paragraphs are specified by Cabinet Order.

①An insured person or a person who was an insured person may, when having a period falling under any of the following items (excluding a premium-paid period; referred to in paragraph (3) as the "period eligible for retroactive payment"), make a request to that effect to the Minister of Health, Labour and Welfare.

②The Minister of Health, Labour and Welfare is, when finding that the request under the preceding paragraph (limited to one relating to item (i) of that paragraph) is well-founded, or when there has been a request under that paragraph (limited to one relating to item (ii) or item (iii) of that paragraph), to approve that request.

③A person who made the request under paragraph (1) may, when having received approval under the provisions of the preceding paragraph, make retroactive payment of the whole or part of the premium for each month of the period eligible for retroactive payment to which that approval relates (limited to a premium treated as not required to be paid under the provisions of Article 89, paragraph (1), Article 90, paragraph (1) or Article 90-3, paragraph (1), and a premium for which part of the amount is treated as not required to be paid under the provisions of Article 90-2, paragraphs (1) through (3)). However, with respect to a premium for which part of the amount is treated as not required to be paid under the provisions of paragraphs (1) through (3) of that Article, this is limited to a case where the remaining amount has been paid.

④Retroactive payment under the provisions of the preceding paragraph is to be made in order, starting with the premium for the month that elapsed earliest.

⑤The amount to be paid retroactively in the case referred to in paragraph (3) is the amount obtained by adding the amount specified by Cabinet Order to the amount of the premium for each month of the period to which that retroactive payment relates.

⑥The provisions of Article 9-4-9, paragraphs (6) through (8) of the Supplementary Provisions apply mutatis mutandis to the case referred to in paragraph (3). In this case, the necessary replacement of terms is specified by Cabinet Order.

⑦The provisions of Article 9-4-7, paragraphs (9) and (10) of the Supplementary Provisions apply mutatis mutandis to approval under the provisions of paragraph (2).

⑧Beyond what is provided for in the preceding paragraphs, the procedure for the request under paragraph (1) and any other matters necessary concerning the application of the provisions of the preceding paragraphs are specified by Cabinet Order.

In the case of applying the provisions of the preceding three Articles to a period on or before March 31, 1986, a period for which the premium has been deemed to have been paid under the provisions of Article 9-4-9, paragraph (6) of the Supplementary Provisions is, from and after the day of the request under paragraph (1) of that Article, deemed to be the premium-paid period prescribed in Article 5, paragraph (3) before the revision under the provisions of Article 1 of the 1985 Amendment Act, and, beyond that, matters necessary concerning the application of the provisions of the preceding three Articles are specified by Cabinet Order.

①The government is, in order to ensure the smooth implementation of the National Pension program, to have the Welfare and Medical Service Agency, Independent Administrative Agency, perform the affairs of managing and collecting the claims prescribed in Article 12, paragraph (1) of the Act on the Dissolution of the Pension Welfare Service Public Corporation and Succession to Its Business, etc. (Act No. 20 of 2000) before its repeal under the provisions of Article 14 of the Supplementary Provisions of the Act on the Government Pension Investment Fund, Independent Administrative Agency, until collection of those claims is completed.

②The government is, in order to ensure the smooth implementation of the National Pension program, to have the Welfare and Medical Service Agency, Independent Administrative Agency, perform the affairs of managing and collecting the claims relating to the lending of small amounts of funds prescribed in Article 12, paragraph (1), item (xii) of the Act on the Welfare and Medical Service Agency, Independent Administrative Agency (Act No. 166 of 2002) before its revision under the provisions of Article 28 of the Act Partially Amending the National Pension Act, etc. to Strengthen the Functions of the Pension System (Act No. 40 of 2020), until March 31, 2027.

①With respect to the authority of the Minister of Health, Labour and Welfare under Article 19 of the Supplementary Provisions of the Act Partially Amending the National Pension Act, etc. (Act No. 104 of 2004), or any other provision establishing transitional measures accompanying the revision of this Act that is specified by Order of the Ministry of Health, Labour and Welfare, the Japan Pension Service is to be made to perform the affairs relating to that authority, as provided for in Article 109-4 through Article 109-12 of the National Pension Act (referred to in the following paragraph as the "New National Pension Act") after the revision under the provisions of Article 20 of the Supplementary Provisions of the Japan Pension Organization Act (Act No. 109 of 2007).

②In the case referred to in the preceding paragraph, the technical replacement of terms for the purpose of applying the provisions of Article 109-4 through Article 109-12 of the New National Pension Act, and any other matters necessary concerning the application of these provisions, are specified by Order of the Ministry of Health, Labour and Welfare.