# 厚生年金保険法 / Employees' Pension Insurance Act — 第三十一条 (Supplementary Provisions, Article 31) - Law: 厚生年金保険法 (Employees' Pension Insurance Act), 昭和二十九年法律第百十五号 - English title "Employees' Pension Insurance Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第三十一条 (Supplementary Provisions, Article 31)（再評価率等の改定等の特例） — address `suppl-4161-104/art-31` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第三十一条（再評価率等の改定等の特例） — Special Provisions on Revision of Revaluation Rates, etc. and Related Matters caption: machine translation, not official suppl-4161-104/art-31 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31 **第一項** 厚生年金保険法による年金たる保険給付（政令で定めるものに限る。）その他政令で定める給付の受給権者（以下この条及び次条において「受給権者」という。）のうち、当該年度において第一号に掲げる指数が第二号に掲げる指数以下となる区分（第七条の規定による改正後の厚生年金保険法別表各号に掲げる受給権者の区分をいう。以下この条及び次条において同じ。）に属するものに適用される再評価率（同法第四十三条第一項に規定する再評価率をいう。以下この項及び次条第一項第一号において同じ。）又は従前額改定率（第二十七条の規定による改正後の平成十二年改正法附則第二十一条第二項の従前額改定率をいう。以下この項及び次条第一項第一号において同じ。）その他政令で定める率（以下この条及び次条において「再評価率等」という。）の改定又は設定については、平成二十六年度までの間は、第七条の規定による改正後の厚生年金保険法第四十三条の四及び第四十三条の五の規定（これらの規定を同法附則第十七条の二第六項において準用し、又は第二十七条の規定による改正後の平成十二年改正法附則第二十一条第四項においてその例による場合を含む。以下この条及び次条において同じ。）は、適用しない。 suppl-4161-104/art-31/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1 With regard to the revision or setting of the revaluation rate (meaning the revaluation rate prescribed in Article 43, paragraph (1) of that Act; the same applies hereinafter in this paragraph and in paragraph (1), item (i) of the following Article), the previous-amount revision rate (meaning the previous-amount revision rate under Article 21, paragraph (2) of the Supplementary Provisions of the 2000 Amendment Act as amended by Article 27; the same applies hereinafter in this paragraph and in paragraph (1), item (i) of the following Article), or any other rate specified by Cabinet Order (hereinafter referred to as "revaluation rates, etc." in this Article and the following Article) applicable to those, among the beneficiaries of pension insurance benefits under the Employees' Pension Insurance Act (limited to those specified by Cabinet Order) and of other benefits specified by Cabinet Order (hereinafter referred to as "beneficiaries" in this Article and the following Article), who belong to a category (meaning a category of beneficiaries set forth in the items of the Appended Table of the Employees' Pension Insurance Act as amended by Article 7; the same applies hereinafter in this Article and the following Article) in which the index set forth in item (i) is equal to or less than the index set forth in item (ii) in the relevant fiscal year, the provisions of Articles 43-4 and 43-5 of the Employees' Pension Insurance Act as amended by Article 7 (including where they are applied mutatis mutandis in Article 17-2, paragraph (6) of the Supplementary Provisions of that Act and where they are followed in Article 21, paragraph (4) of the Supplementary Provisions of the 2000 Amendment Act as amended by Article 27; the same applies hereinafter in this Article and the following Article) do not apply until fiscal year 2014. machine translation, not official **一** 第七条の規定による改正後の厚生年金保険法第四十三条第一項又は第二十七条の規定による改正後の平成十二年改正法附則第二十一条第二項の規定により計算した額（第七条の規定による改正後の厚生年金保険法第四十三条の四及び第四十三条の五の規定の適用がないものとして改定し、又は設定した再評価率又は従前額改定率を基礎として計算した額とする。）の水準を表すものとして政令で定めるところにより計算した指数 suppl-4161-104/art-31/par-1/item-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-1 an index calculated as specified by Cabinet Order as representing the level of the amount calculated pursuant to Article 43, paragraph (1) of the Employees' Pension Insurance Act as amended by Article 7 or Article 21, paragraph (2) of the Supplementary Provisions of the 2000 Amendment Act as amended by Article 27 (meaning the amount calculated on the basis of the revaluation rate or previous-amount revision rate revised or set on the assumption that Articles 43-4 and 43-5 of the Employees' Pension Insurance Act as amended by Article 7 do not apply); machine translation, not official **二** 附則第二十七条の二の規定により読み替えられた附則第二十七条の規定により読み替えられてなおその効力を有するものとされた第二十七条の規定による改正前の平成十二年改正法附則第二十一条第一項の規定により計算した額の水準を表すものとして政令で定めるところにより計算した指数 suppl-4161-104/art-31/par-1/item-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-2 an index calculated as specified by Cabinet Order as representing the level of the amount calculated pursuant to Article 21, paragraph (1) of the Supplementary Provisions of the 2000 Amendment Act prior to the amendment by Article 27, which remains in force as read pursuant to Article 27 of the Supplementary Provisions as read pursuant to Article 27-2 of the Supplementary Provisions. machine translation, not official **第二項** 受給権者のうち、当該年度において、前項第一号に掲げる指数が同項第二号に掲げる指数を上回り、かつ、第七条の規定による改正後の厚生年金保険法第四十三条の四第四項第一号に規定する調整率（以下この項及び次条第二項において「調整率」という。）が前項第一号に掲げる指数に対する同項第二号に掲げる指数の比率を下回る区分に属するものに適用される再評価率等の改定又は設定に対する同法第四十三条の四及び第四十三条の五の規定の適用については、当該比率を調整率とみなす。 suppl-4161-104/art-31/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-2 With regard to the application of Articles 43-4 and 43-5 of the Employees' Pension Insurance Act as amended by Article 7 to the revision or setting of revaluation rates, etc. applicable to those, among the beneficiaries, who belong to a category in which, in the relevant fiscal year, the index set forth in item (i) of the preceding paragraph exceeds the index set forth in item (ii) of that paragraph and the adjustment rate prescribed in Article 43-4, paragraph (4), item (i) of the Employees' Pension Insurance Act as amended by Article 7 (hereinafter referred to as the "adjustment rate" in this paragraph and paragraph (2) of the following Article) is less than the ratio of the index set forth in item (ii) of that paragraph to the index set forth in item (i) of that paragraph, that ratio is deemed to be the adjustment rate. machine translation, not official --- ## Cites - suppl-4161-104/art-31/par-1: この条 → 厚生年金保険法 附則第三十一条 (Supplementary Provisions, Article 31), suppl-4161-104/art-31 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31 - suppl-4161-104/art-31/par-1: 次条 → 厚生年金保険法 附則第三十一条の二 (Supplementary Provisions, Article 31-2), suppl-4161-104/art-31-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31-2 - suppl-4161-104/art-31/par-1: 第一号 → 厚生年金保険法 附則第三十一条第一項第一号 (Supplementary Provisions, Article 31, paragraph (1), item (i)), suppl-4161-104/art-31/par-1/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-1 - suppl-4161-104/art-31/par-1: 第二号 → 厚生年金保険法 附則第三十一条第一項第二号 (Supplementary Provisions, Article 31, paragraph (1), item (ii)), suppl-4161-104/art-31/par-1/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-2 - suppl-4161-104/art-31/par-1: 同法第四十三条第一項 → 厚生年金保険法 第四十三条第一項 (Article 43, paragraph (1)), art-43/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-1 · https://japanlaw.org/l/329AC0000000115/art-43/par-1 - suppl-4161-104/art-31/par-1: この項 → 厚生年金保険法 附則第三十一条第一項 (Supplementary Provisions, Article 31, paragraph (1)), suppl-4161-104/art-31/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1 - suppl-4161-104/art-31/par-1: 次条第一項第一号 → 厚生年金保険法 附則第三十一条の二第一項第一号 (Supplementary Provisions, Article 31-2, paragraph (1), item (i)), suppl-4161-104/art-31-2/par-1/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31-2/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31-2/par-1/item-1 - suppl-4161-104/art-31/par-1: 平成十二年改正法附則第二十一条第二項 → 厚生年金保険法 附則第二十一条第二項 (Supplementary Provisions, Article 21, paragraph (2)), suppl-4121-18/art-21/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-21/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-21/par-2 - suppl-4161-104/art-31/par-1: 厚生年金保険法第四十三条の四 → 厚生年金保険法 第四十三条の四 (Article 43-4), art-43-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-4 · https://japanlaw.org/l/329AC0000000115/art-43-4 - suppl-4161-104/art-31/par-1: 第四十三条の五 → 厚生年金保険法 第四十三条の五 (Article 43-5), art-43-5 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-5 · https://japanlaw.org/l/329AC0000000115/art-43-5 - suppl-4161-104/art-31/par-1: 平成十二年改正法附則第二十一条第四項 → 厚生年金保険法 附則第二十一条第四項 (Supplementary Provisions, Article 21, paragraph (4)), suppl-4121-18/art-21/par-4 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-21/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-21/par-4 - suppl-4161-104/art-31/par-1/item-1: 厚生年金保険法第四十三条第一項 → 厚生年金保険法 第四十三条第一項 (Article 43, paragraph (1)), art-43/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-1 · https://japanlaw.org/l/329AC0000000115/art-43/par-1 - suppl-4161-104/art-31/par-1/item-1: 平成十二年改正法附則第二十一条第二項 → 厚生年金保険法 附則第二十一条第二項 (Supplementary Provisions, Article 21, paragraph (2)), suppl-4121-18/art-21/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-21/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-21/par-2 - suppl-4161-104/art-31/par-1/item-1: 厚生年金保険法第四十三条の四 → 厚生年金保険法 第四十三条の四 (Article 43-4), art-43-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-4 · https://japanlaw.org/l/329AC0000000115/art-43-4 - suppl-4161-104/art-31/par-1/item-1: 第四十三条の五 → 厚生年金保険法 第四十三条の五 (Article 43-5), art-43-5 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-5 · https://japanlaw.org/l/329AC0000000115/art-43-5 - suppl-4161-104/art-31/par-1/item-2: 附則第二十七条の二 → 厚生年金保険法 附則第二十七条の二 (Supplementary Provisions, Article 27-2), suppl-4161-104/art-27-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-27-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-27-2 - suppl-4161-104/art-31/par-1/item-2: 附則第二十七条 → 厚生年金保険法 附則第二十七条 (Supplementary Provisions, Article 27), suppl-4161-104/art-27 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-27 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-27 - suppl-4161-104/art-31/par-2: 前項第一号 → 厚生年金保険法 附則第三十一条第一項第一号 (Supplementary Provisions, Article 31, paragraph (1), item (i)), suppl-4161-104/art-31/par-1/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-1 - suppl-4161-104/art-31/par-2: 同項第二号 → 厚生年金保険法 附則第三十一条第一項第二号 (Supplementary Provisions, Article 31, paragraph (1), item (ii)), suppl-4161-104/art-31/par-1/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1/item-2 - suppl-4161-104/art-31/par-2: この項 → 厚生年金保険法 附則第三十一条第二項 (Supplementary Provisions, Article 31, paragraph (2)), suppl-4161-104/art-31/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-2 - suppl-4161-104/art-31/par-2: 次条第二項 → 厚生年金保険法 附則第三十一条の二第二項 (Supplementary Provisions, Article 31-2, paragraph (2)), suppl-4161-104/art-31-2/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31-2/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31-2/par-2 - suppl-4161-104/art-31/par-2: 同法第四十三条の四 → 厚生年金保険法 第四十三条の四 (Article 43-4), art-43-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-4 · https://japanlaw.org/l/329AC0000000115/art-43-4 - suppl-4161-104/art-31/par-2: 第四十三条の五 → 厚生年金保険法 第四十三条の五 (Article 43-5), art-43-5 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43-5 · https://japanlaw.org/l/329AC0000000115/art-43-5 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 厚生年金保険法 附則第三十一条第一項（再評価率等の改定等の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-1 - 厚生年金保険法 附則第三十一条第二項（再評価率等の改定等の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4161-104/art-31/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-31/par-2 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 厚生年金保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/329AC0000000115/20261001_507AC0000000074), retrieved 2026-10-13 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Employees' Pension Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3554/tb), retrieved 2026-10-13 - claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T074650-061, translated 2026-10-13 - This site's parser, version 190 — 厚生年金保険法 — structure, counts, cross-references and defined terms, computed 2026-10-13