①If a person subject to a class I revision (meaning an insured or former insured whose standardized remuneration is revised pursuant to the provisions of Article 78-6, paragraph (1), item (i) and paragraph (2), item (i); the same applies hereinafter) or a person subject to a class II revision (meaning the spouse of a person subject to a class I revision, whose standardized remuneration is revised or decided pursuant to the provisions of paragraph (1), item (ii) and paragraph (2), item (ii) of that Article; the same applies hereinafter) has gone through a divorce or similar circumstances (meaning a divorce (this excludes the dissolution of the circumstances in question, regarding persons who have not registered a marriage but whose circumstances are, de facto, the same as those of a person in a marital relationship), an annulment of marriage, or other grounds specified by Order of the Ministry of Health, Labour and Welfare; the same applies hereinafter in this Chapter) and falls under any of the following items, that person may file a request with the implementing organization for the standardized remuneration to be revised or decided (meaning the standardized remuneration of the person subject to a class I revision and the person subject to a class II revision (each of whom is hereinafter referred to as a "party"); the same applies hereinafter in this Chapter) for the insured period that falls under the subject period (meaning the period of the marriage and other periods specified by Order of the Ministry of Health, Labour and Welfare; the same applies hereinafter) connected with the divorce or similar circumstances; provided, however, that this does not apply once five years have passed since the relevant divorce or similar circumstances or in a situation otherwise falling under one of the cases specified by Order of the Ministry of Health, Labour and Welfare:

②With respect to a request for the standardized remuneration to be revised or decided pursuant to the provisions of the preceding paragraph (hereinafter referred to as a "request for standardized remuneration to be revised or decided"), if consultations toward an agreement by the parties under item (i) of that paragraph have failed to produce an agreement, or if consultations cannot take place, the family court may, based on a motion filed by one of the parties, set the allocation percentage that the parties are to request, by taking into account the degree of the parties' contributions to the payment of insurance premiums during the subject period and any other circumstances.

③The request for standardized remuneration to be revised or decided must be submitted attached by a certified copy of a notarized document to the effect that the parties have agreed to request that the standardized remuneration to be revised or decided and have agreed on the allocation percentage that the parties are to request, or must be submitted in other ways prescribed by Order of the Ministry of Health, Labour and Welfare.

①The allocation percentage that the parties are to request must be determined so as to fall within the range between at least the percentage that constitutes the person subject to a class II revision's aggregate amount of standardized remuneration for the subject period (meaning the amount arrived at when first the parties are deemed to be the beneficiaries, then each of the standardized monthly amounts of remuneration and the standardized amounts of bonuses for each month of the insured period falling under the subject period ( the previous standardized monthly amount of remuneration specified in Article 26, paragraph (1) is substituted for that standardized monthly amount of remuneration, for each month in which the previous standardized monthly amount of remuneration is deemed to be the standardized monthly amount of remuneration for the relevant month pursuant to the provisions of that paragraph) is multiplied by the revaluation rate that is applicable on the last day of the subject period, and finally all of the products thus calculated are added; the same applies hereinafter) in proportion to the sum total of both parties' aggregate amounts of standardized remuneration for the subject period and 50%, at most (that range is hereinafter referred to as the "allocation percentage range").

②Notwithstanding the provisions of the preceding paragraph, with respect to a request for standardized remuneration to be revised or decided, if the day on which information concerning the allocation percentage range has been received pursuant to the provisions of paragraph (1) of the following Article (including materials received by the court, or an authorized judge or commissioned judge pursuant to the provisions of Article 78-5 and, if more than one material exists, the last one; the same applies in this paragraph) is before the last day of the subject period and the period of time until the last day of the subject period is shorter than one year, or in other cases specified by Order of the Ministry of Health, Labour and Welfare, the allocation percentage range with regard to which that information has been received may be set as the allocation percentage range under that paragraph.

①As provided by order of the competent ministry, both of the parties or either one of them may request the implementing organization to provide the information specified in the following paragraph that they need in order to file a request for standardized remuneration to be revised or decided; provided, however, that this does not apply if that request is made after the filing of the request for standardized remuneration to be revised or decided, if that request falls under the proviso to Article 78-2, paragraph (1), or in other cases provided for by Order of the Ministry of Health, Labour and Welfare.

②The information referred to in the preceding paragraph is the aggregate amount of standardized remuneration for the subject period, the allocation percentage range, periods constituting the basis for calculating these, and any other information specified by Order of the Ministry of Health, Labour and Welfare; and if the last day of the subject period had not yet arrived as of the day on which the request under that paragraph was made, the foregoing information is that which is calculated when the day on which the request under that paragraph was made is deemed to be the last day of the subject period.

At the request of the court, the authorized judge, or the commissioned judge, the implementing organization must provide them with the materials necessary for them to dispose on the allocation percentage that the parties are to request pursuant to the provisions of Article 78-2, paragraph (2).

①If a request for standardized remuneration to be revised or decided has been filed, the implementing organization may revise or decide the parties' standardized monthly amounts of remuneration to be the amounts specified in each of the following items for each month of an insured period falling under the subject period in which the person subject to a class I revision has a standardized monthly amount of remuneration:

②If a request for standardized remuneration to be revised or decided has been filed, the implementing organization may revise or decide the parties' standardized amounts of bonuses to be the amounts specified in each of the following items for each month of an insured period falling under the subject period in which the person subject to a class I revision has a standardized amount of bonus:

③In a case as referred to in the preceding two paragraphs, a period falling under the subject period that is an insured period for the person subject to a class I revision but not an insured period for the person subject to a class II revision is deemed to be an insured period for the person subject to a class II revision.

④The standardized remuneration revised or decided pursuant to the provisions of paragraph (1) and paragraph (2) is effective only prospectively, starting from the day of the relevant request for standardized remuneration to be revised or decided.

The implementing organization must record, in the EPI register, the names of any persons who have a period that is deemed to be an insured period pursuant to the provisions of paragraph (3) of the preceding Article (hereinafter referred to as the "deemed insured period at divorce"), the deemed insured period at divorce, the standardized remuneration connected with the deemed insured period at divorce, and other particulars specified by order of the competent ministry.

If the implementing organization has revised or decided the standardized remuneration pursuant to the provisions of Article 78-6, paragraph (1) and paragraph (2), the implementing organization must notify the parties to that effect.

Beyond as provided in Article 78-2 to the preceding Article, order of the competent ministry provides for the necessary particulars in connection with the procedures for a request for standardized remuneration to be revised or decided and for the standardized remuneration to be revised or decided.

①Notwithstanding the provisions of Article 43, paragraph (1), if the standardized remuneration of the beneficiary of an employees' old-age pension has been revised or decided pursuant to the provisions of Article 78-6, paragraph (1) and paragraph (2), the insured period on or before the last month of the insured period falling under the subject period (or the period prescribed by Cabinet Order, if the grounds for payment of the relevant employees' old-age pension occur after the last day of the subject period or in other cases specified by Cabinet Order) and the standardized remuneration after its revision or after it has been decided are the basis for calculating the employees' old-age pension, and the pension amount is revised from the month following the month that includes the day on which the relevant request for standardized remuneration to be revised or decided was made.

②If the standardized remuneration of the beneficiary of an employees' disability pension has been revised or decided pursuant to the provisions of Article 78-6, paragraph (1) and paragraph (2) for an insured period that constitutes a basis for calculating the amount of the relevant employees' disability pension, the amount of the pension is revised from the month following the month that includes the day on which the request for standardized remuneration to be revised or decided was filed, based on the standardized remuneration after its revision or after it has been decided; provided, however, that the deemed insured period at divorce does not constitute a basis for calculating the employees' disability pension to which the provisions of the second sentence of Article 50, paragraph (1) apply.

Beyond as provided in this Chapter, Cabinet Order provides for the necessary particulars in connection with the special provisions for divorce and similar circumstances.