①A person who falls under any of the following items is an insured person of the National Pension.

②For the purposes of applying the provisions of item (iii) of the preceding paragraph, the matters necessary for determining whether a person's livelihood is maintained mainly through the income of a category 2 insured person are specified by Cabinet Order.

③The provisions of Chapter III (excluding Article 12 and Article 14) of the Administrative Procedure Act (Act No. 88 of 1993) do not apply to the determination referred to in the preceding paragraph.

An insured person under the provisions of the preceding Article acquires status as an insured person: for a person who does not fall under either item (ii) or item (iii) of paragraph (1) of that Article, on the day on which the person came to fall under any of items (i) through (iii) of this paragraph; for a person under 20 years of age or 60 years of age or older, on the day on which the person came to fall under item (iv); and for any other person, on the day on which the person came to fall under that item or item (v).

An insured person under the provisions of Article 7 loses status as an insured person on the day following the day on which the person came to fall under any of the following items (or, where, on the day the person came to fall under item (ii), the person further came to fall under Article 7, paragraph (1), item (ii) or item (iii), or came to fall under any of items (iii) through (v) (limited, in the case of item (iv), to a case where the person became a person able to receive old-age benefits, etc. under the Employees' Pension Insurance Act), on that day).

①When calculating the insured period, it is to be calculated by the month, and the months from the month in which the day on which the person acquired status as an insured person falls, up to the month preceding the month in which the day on which the person lost that status falls, are to be included in it.

②When an insured person loses status as an insured person in the month in which the day of acquiring that status falls, that month is included in the insured period as one month. However, this does not apply when the person acquires status as an insured person again in that month.

③For a person who, after losing status as an insured person, has again acquired that status, the insured periods before and after are aggregated.

When calculating the insured period as a category 1 insured person, the insured period as a category 2 insured person, or the insured period as a category 3 insured person, a month in which there was a change in the category of insured person (meaning the distinction as to whether a person is a category 1 insured person, a category 2 insured person, or a category 3 insured person; the same applies hereinafter) is deemed to be a month during which the person was an insured person of the category after the change. When there have been changes in the category of insured person two or more times within the same month, that month is deemed to be a month during which the person was an insured person of the last category.

①An insured person (excluding a category 3 insured person; the same applies in the following paragraph) must notify the mayor of the municipality of matters concerning the acquisition and loss of status, and change of category, and matters concerning change of name and domicile, as specified by Order of the Ministry of Health, Labour and Welfare.

②The head of the household to which an insured person belongs (hereinafter simply referred to as the "head of household") may make the notification under the preceding paragraph in place of the insured person.

③When a notification has been made under the provisions of Article 22 through Article 24, Article 30-46, or Article 30-47 of the Residential Basic Book Act (Act No. 81 of 1967) (limited to a case where a note has been added, under the provisions of Article 29 of that Act, to the document pertaining to that notification), the notification under the provisions of paragraph (1) based on the same grounds as that notification is deemed to have been made.

④When the mayor of the municipality has accepted a notification under the provisions of paragraph (1) or paragraph (2) (excluding a case where the mayor has accepted a notification concerning a change of name or domicile that is specified by Order of the Ministry of Health, Labour and Welfare), the mayor must report this to the Minister of Health, Labour and Welfare, as specified by Order of the Ministry of Health, Labour and Welfare.

⑤A category 3 insured person must notify the Minister of Health, Labour and Welfare of matters concerning the acquisition and loss of status, and change of category, and matters concerning change of name and domicile, as specified by Order of the Ministry of Health, Labour and Welfare. However, this does not apply to matters concerning a change of name or domicile that are specified by Order of the Ministry of Health, Labour and Welfare.

⑥Except in a case specified by Order of the Ministry of Health, Labour and Welfare, the notification under the preceding paragraph is to be made: in the case of a category 3 insured person who is a dependent spouse of a category 2 insured person who is a category 1 employees' pension insured person prescribed in Article 2-5, paragraph (1), item (i) of the Employees' Pension Insurance Act (hereinafter referred to as a "category 1 employees' pension insured person"), through the employer who employs the category 2 insured person who is the spouse of that category 3 insured person; and in the case of a category 3 insured person who is a dependent spouse of a category 2 insured person who is a category 2 employees' pension insured person prescribed in item (ii) of that paragraph (hereinafter referred to as a "category 2 employees' pension insured person"), a category 3 employees' pension insured person prescribed in item (iii) of that paragraph (hereinafter referred to as a "category 3 employees' pension insured person"), or a category 4 employees' pension insured person prescribed in item (iv) of that paragraph (hereinafter referred to as a "category 4 employees' pension insured person"), through the National Public Officers Mutual Aid Association, the Local Public Officers Mutual Aid Association, or the Promotion and Mutual Aid Corporation for Private Schools of Japan, of which the category 2 insured person who is the spouse of that category 3 insured person is a member or a participant.

⑦The employer who employs a category 2 insured person as referred to in the preceding paragraph means the employer (meaning the employer prescribed in Article 27 of the Employees' Pension Insurance Act; the same applies in Article 108, paragraph (3)) of a place of business (meaning a place of business prescribed in Article 6, paragraph (1) of the Employees' Pension Insurance Act) that employs a category 2 insured person who is a category 1 employees' pension insured person.

⑧The employer who employs a category 2 insured person as referred to in paragraph (6) may entrust part of the affairs relating to the routing under that paragraph to a Health Insurance Society established by that employer.

⑨When, under the provisions of paragraph (6), the notification under paragraph (5) has been accepted by the employer who employs the category 2 insured person, or by the National Public Officers Mutual Aid Association, the Local Public Officers Mutual Aid Association, or the Promotion and Mutual Aid Corporation for Private Schools of Japan, the notification is deemed to have been made to the Minister of Health, Labour and Welfare at the time it was accepted.

①A person who was a category 3 insured person must, when the person has ceased to be a dependent spouse of a category 2 insured person, notify the Minister of Health, Labour and Welfare of that fact, as specified by Order of the Ministry of Health, Labour and Welfare.

②The provisions of paragraph (6) through paragraph (9) of the preceding Article apply mutatis mutandis to the notification under the preceding paragraph. In this case, the necessary technical replacement of terms is specified by Cabinet Order.

The Minister of Health, Labour and Welfare maintains a National Pension register, and records in it the name of the insured person, the acquisition and loss of status, changes of category, the state of payment of premiums, the Basic Pension Number (meaning the symbols and numbers specified by Order of the Ministry of Health, Labour and Welfare that are used to carry out affairs concerning the administration of government-administered pension programs (meaning the National Pension program and the Employees' Pension Insurance program administered by the government) and other affairs related to those programs that are specified by Order of the Ministry of Health, Labour and Welfare), and other matters specified by Order of the Ministry of Health, Labour and Welfare.

①An insured person or a person who was an insured person may, when the person considers that a specified National Pension record relating to themselves that is recorded in the National Pension register (meaning the content of the acquisition and loss of status as an insured person, change of category, the state of payment of premiums, or other matters specified by Order of the Ministry of Health, Labour and Welfare; the same applies in this paragraph) is not factual, or that a specified National Pension record relating to themselves is not recorded in the National Pension register, request the Minister of Health, Labour and Welfare to correct the National Pension register, as specified by Order of the Ministry of Health, Labour and Welfare.

①The Minister of Health, Labour and Welfare must establish a policy on the correction of the National Pension register relating to a request under the provisions of paragraph (1) of the preceding Article (including as applied mutatis mutandis pursuant to paragraph (2) of that Article) (referred to as a "correction request" in the following Article).

②When the Minister of Health, Labour and Welfare intends to establish or change the policy referred to in the preceding paragraph, the Minister must consult the Social Security Council in advance.

①When the Minister of Health, Labour and Welfare finds that a correction request is well-founded, the Minister must decide to correct the National Pension register relating to that correction request.

②Except in a case where the Minister of Health, Labour and Welfare makes a decision under the provisions of the preceding paragraph, the Minister must decide not to correct the National Pension register relating to the correction request.

③When the Minister of Health, Labour and Welfare intends to make a decision under the provisions of the preceding two paragraphs, the Minister must consult the Social Security Council in advance.

The Minister of Health, Labour and Welfare is, in order to enhance the people's understanding of the National Pension system and improve their confidence in it, to notify each insured person, as specified by Order of the Ministry of Health, Labour and Welfare, of the necessary information concerning the insured person's record of premium payment and future benefits, in an easily understandable form.