# 厚生年金保険法 / Employees' Pension Insurance Act — 第二十三条の五 (Supplementary Provisions, Article 23-5)

- 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: 第二十三条の五 (Supplementary Provisions, Article 23-5)（地方公共団体の長の退職の取扱いに関する特例） — address `suppl-3291-115/art-23-5`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-23-5
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-5
- 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.

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### 第二十三条の五（地方公共団体の長の退職の取扱いに関する特例） — Special Provisions on the Treatment of Retirement of the Head of a Local Government
<sup>caption: machine translation, not official</sup>
<sup>suppl-3291-115/art-23-5 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-23-5 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-5</sup>

**第一項**  都道府県知事又は市町村長（特別区の区長（地方自治法第二百八十三条第一項の規定により選挙された特別区の区長に限る。）を含む。）である被保険者が、次の各号のいずれかに該当する場合においては、前後の第三号厚生年金被保険者期間は引き続いたものとみなす。
<sup>suppl-3291-115/art-23-5/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-23-5/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-5/par-1</sup>
If an insured who is a prefectural governor or a mayor of a municipality (including the head of a special ward (limited to the head of a special ward elected pursuant to the provisions of Article 283, paragraph (1) of the Local Autonomy Act)) falls under any of the following items, the preceding and subsequent category III EPI insured periods are deemed to be continuous:
<sup>machine translation, not official</sup>

  **一**  任期満了による選挙の期日の告示がなされた後、その任期の満了すべき日前に退職した場合において、当該任期満了による選挙において当選人となり、再び地方公共団体の長となつたとき。
  <sup>suppl-3291-115/art-23-5/par-1/item-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-23-5/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-5/par-1/item-1</sup>
  if the person retires before the day on which the term of office is to expire, after the notice of the date of an election due to the expiration of the term of office has been given, and is elected in that election due to the expiration of the term of office and again becomes the head of a local government;
  <sup>machine translation, not official</sup>

  **二**  退職の申立てを行つたことにより告示された選挙において当選人となり、再び地方公共団体の長となつたとき。
  <sup>suppl-3291-115/art-23-5/par-1/item-2 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-23-5/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-5/par-1/item-2</sup>
  if the person is elected in an election notified as a result of the person's having filed a statement of retirement, and again becomes the head of a local government.
  <sup>machine translation, not official</sup>

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## Cites
- suppl-3291-115/art-23-5/par-1: 地方自治法第二百八十三条第一項 → e-Gov law 322AC0000000067, 第二百八十三条第一項 (Article 283, paragraph (1)), art-283/par-1 — not held in this collection

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## 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-20261013T074650-014, 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
