# 厚生年金保険法 / Employees' Pension Insurance Act — 第一条 (Supplementary Provisions, Article 1)

- 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: 第一条 (Supplementary Provisions, Article 1)（施行期日） — address `suppl-4281-114/art-1`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1
- 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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### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-4281-114/art-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1</sup>

**第一項**  この法律は、公布の日から施行する。ただし、次の各号に掲げる規定は、当該各号に定める日から施行する。
<sup>suppl-4281-114/art-1/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1</sup>
This Act comes into effect on the date of promulgation; provided, however, that the provisions set forth in the following items come into effect on the dates specified in those items:
<sup>machine translation, not official</sup>

  **一**  略
  <sup>suppl-4281-114/art-1/par-1/item-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-1</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **二**  第七条の規定　平成二十九年四月一日
  <sup>suppl-4281-114/art-1/par-1/item-2 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-2</sup>
  the provisions of Article 7: April 1, 2017;
  <sup>machine translation, not official</sup>

  **三**  略
  <sup>suppl-4281-114/art-1/par-1/item-3 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-3</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **四**  第一条中国民年金法第二十七条の三第一項、第二十七条の四及び第二十七条の五の改正規定並びに第三条中厚生年金保険法第四十三条の三第一項、第四十三条の四及び第四十三条の五の改正規定並びに同法附則第十七条の七第四項の改正規定並びに附則第三条及び第五条の規定、附則第十二条の規定（第六号に掲げる改正規定を除く。）並びに附則第十三条の規定　平成三十年四月一日
  <sup>suppl-4281-114/art-1/par-1/item-4 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-4</sup>
  the provisions amending Article 27-3, paragraph (1), Article 27-4 and Article 27-5 of the National Pension Act in Article 1, the provisions amending Article 43-3, paragraph (1), Article 43-4 and Article 43-5 of the Employees' Pension Insurance Act in Article 3 and the provisions amending Article 17-7, paragraph (4) of the Supplementary Provisions of that Act, the provisions of Article 3 and Article 5 of the Supplementary Provisions, the provisions of Article 12 of the Supplementary Provisions (excluding the provisions amending as set forth in item (vi)), and the provisions of Article 13 of the Supplementary Provisions: April 1, 2018;
  <sup>machine translation, not official</sup>

  **五**  略
  <sup>suppl-4281-114/art-1/par-1/item-5 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-5 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-5</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **六**  第二条及び第四条の規定並びに附則第十二条中国民年金法等の一部を改正する法律（平成十二年法律第十八号）附則第二十一条第四項の改正規定（同項中「又は第三項」を削る部分に限る。）　令和三年四月一日
  <sup>suppl-4281-114/art-1/par-1/item-6 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-6 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-6</sup>
  the provisions of Article 2 and Article 4, and the provisions in Article 12 of the Supplementary Provisions amending Article 21, paragraph (4) of the Supplementary Provisions of the Act Partially Amending the National Pension Act, etc. (Act No. 18 of 2000) (limited to the part deleting "or paragraph (3)" in that paragraph): April 1, 2021.
  <sup>machine translation, not official</sup>

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## Cites
- suppl-4281-114/art-1/par-1/item-4: 第五条 → 厚生年金保険法 附則第五条 (Supplementary Provisions, Article 5), suppl-4281-114/art-5 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-5 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-5
- suppl-4281-114/art-1/par-1/item-4: 第六号 → 厚生年金保険法 附則第一条第一項第六号 (Supplementary Provisions, Article 1, paragraph (1), item (vi)), suppl-4281-114/art-1/par-1/item-6 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-6 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-6

## Cited by

1 provision cites this one. No official source publishes this direction.

- 厚生年金保険法 附則第一条第一項第四号（施行期日） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4281-114/art-1/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/suppl-4281-114/art-1/par-1/item-4

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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-20261013T074650-096, translated 2026-10-13
- This site's parser, version 209 — 厚生年金保険法 — structure, counts, cross-references and defined terms, computed 2026-10-13