# 厚生年金保険法 / Employees' Pension Insurance Act — 第四十七条 (Supplementary Provisions, Article 47)

- 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: 第四十七条 (Supplementary Provisions, Article 47)（厚生年金保険の被保険者期間等に関する経過措置） — address `suppl-3601-34/art-47`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47
- 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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### 第四十七条（厚生年金保険の被保険者期間等に関する経過措置） — Transitional Measures Concerning Insured Periods, etc. under Employees' Pension Insurance
<sup>caption: machine translation, not official</sup>
<sup>suppl-3601-34/art-47 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47</sup>

**第一項**  旧船員保険法による船員保険の被保険者であつた期間（他の法令の規定により当該被保険者であつた期間とみなされ、又は当該被保険者であつた期間に加算された期間を含む。）は、第一号厚生年金被保険者期間とみなす。ただし、次の各号に掲げる期間は、この限りでない。
<sup>suppl-3601-34/art-47/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1</sup>
A period during which a person was an insured under Mariners Insurance under the former Mariners Insurance Act (including a period deemed under the provisions of other laws and regulations to have been a period during which the person was such an insured, or added to a period during which the person was such an insured) is deemed to be a category I EPI insured period. However, this does not apply to the periods set forth in the following items.
<sup>machine translation, not official</sup>

  **一**  旧船員保険法による脱退手当金（法律第百八十二号附則第十五条又は法律第百五号附則第十九条の規定による脱退手当金を含む。）の支給を受けた場合におけるその脱退手当金の計算の基礎となつた期間
  <sup>suppl-3601-34/art-47/par-1/item-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1/item-1</sup>
  In the case where the person has received payment of a withdrawal allowance under the former Mariners Insurance Act (including a withdrawal allowance under the provisions of Article 15 of the Supplementary Provisions of Act No. 182 or Article 19 of the Supplementary Provisions of Act No. 105), the period that served as the basis for calculating that withdrawal allowance;
  <sup>machine translation, not official</sup>

  **二**  附則第百三十五条の規定による改正前の国家公務員等共済組合法又は附則第百三十九条の規定による改正前の地方公務員等共済組合法に基づく共済組合の組合員たる船員保険の被保険者であつた期間
  <sup>suppl-3601-34/art-47/par-1/item-2 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1/item-2</sup>
  A period during which the person was an insured under Mariners Insurance who was a member of a mutual aid Association under the National Public Officers, etc. Mutual Aid Association Act prior to the amendment by the provisions of Article 135 of the Supplementary Provisions or the Local Public Officers, etc. Mutual Aid Association Act prior to the amendment by the provisions of Article 139 of the Supplementary Provisions; and
  <sup>machine translation, not official</sup>

  **三**  前号に規定する組合員たる船員保険の被保険者となる前の船員保険の被保険者であつた期間
  <sup>suppl-3601-34/art-47/par-1/item-3 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1/item-3</sup>
  A period during which the person was an insured under Mariners Insurance before becoming an insured under Mariners Insurance who is a member prescribed in the preceding item.
  <sup>machine translation, not official</sup>

**第二項**  施行日前の旧厚生年金保険法第三条第一項第五号に規定する第三種被保険者であつた期間（同法附則第四条第二項の規定により当該第三種被保険者であつた期間とみなされ、又は当該期間に関する規定を準用することとされた期間を含む。）に係る厚生年金保険の被保険者期間の計算については、旧厚生年金保険法第十九条第三項及び第十九条の二の規定の例による。
<sup>suppl-3601-34/art-47/par-2 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-2</sup>
The calculation of the insured period under employees' pension insurance relating to a period before the Effective Date during which a person was a class 3 insured person prescribed in Article 3, paragraph (1), item (v) of the former Employees' Pension Insurance Act (including a period deemed under the provisions of Article 4, paragraph (2) of the Supplementary Provisions of that Act to have been a period during which the person was such a class 3 insured person, or a period for which the provisions concerning that period were to apply mutatis mutandis) is governed by the provisions of Article 19, paragraph (3) and Article 19-2 of the former Employees' Pension Insurance Act.
<sup>machine translation, not official</sup>

**第三項**  第一項の規定により第一号厚生年金被保険者期間とみなされた旧船員保険法による船員保険の被保険者であつた期間につき厚生年金保険の被保険者期間を計算する場合には、その期間に三分の四を乗じて得た期間をもつて厚生年金保険の被保険者期間とする。
<sup>suppl-3601-34/art-47/par-3 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-3</sup>
Where the insured period under employees' pension insurance is calculated for a period during which a person was an insured under Mariners Insurance under the former Mariners Insurance Act that is deemed under the provisions of paragraph (1) to be a category I EPI insured period, the period obtained by multiplying that period by 4/3 is the insured period under employees' pension insurance.
<sup>machine translation, not official</sup>

**第四項**  平成三年四月一日前の第三種被保険者等であつた期間につき厚生年金保険の被保険者期間を計算する場合には、新厚生年金保険法第十九条第一項及び第二項の規定にかかわらず、これらの規定によつて計算した期間に五分の六を乗じて得た期間をもつて厚生年金保険の被保険者期間とする。
<sup>suppl-3601-34/art-47/par-4 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-4</sup>
Where the insured period under employees' pension insurance is calculated for a period before April 1, 1991 during which a person was a class 3 insured person, etc., notwithstanding the provisions of Article 19, paragraphs (1) and (2) of the new Employees' Pension Insurance Act, the period obtained by multiplying the period calculated pursuant to those provisions by 6/5 is the insured period under employees' pension insurance.
<sup>machine translation, not official</sup>

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## Cites
- suppl-3601-34/art-47/par-1/item-3: 前号 → 厚生年金保険法 附則第四十七条第一項第二号 (Supplementary Provisions, Article 47, paragraph (1), item (ii)), suppl-3601-34/art-47/par-1/item-2 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1/item-2
- suppl-3601-34/art-47/par-3: 第一項 → 厚生年金保険法 附則第四十七条第一項 (Supplementary Provisions, Article 47, paragraph (1)), suppl-3601-34/art-47/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1
- suppl-3601-34/art-47/par-4: 新厚生年金保険法第十九条第一項 → 厚生年金保険法 第十九条第一項 (Article 19, paragraph (1)), art-19/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-19/par-1 · https://japanlaw.org/l/329AC0000000115/art-19/par-1
- suppl-3601-34/art-47/par-4: 第二項 → 厚生年金保険法 第十九条第二項 (Article 19, paragraph (2)), art-19/par-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-19/par-2 · https://japanlaw.org/l/329AC0000000115/art-19/par-2

## Cited by

19 provisions cite this one. No official source publishes this direction.

- 厚生年金保険法 附則第十七条の四第二項（平均標準報酬月額の改定） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-17-4/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-4/par-2
- 厚生年金保険法 附則第四条第一項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3441-78/art-4/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3441-78/art-4/par-1
- 厚生年金保険法 附則第十五条第三項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3441-78/art-15/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3441-78/art-15/par-3
- 厚生年金保険法 附則第四条第三項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3481-92/art-4/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3481-92/art-4/par-3
- 厚生年金保険法 附則第六十三条第一項（厚生年金保険法による年金額の計算の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3551-82/art-63/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3551-82/art-63/par-1
- 厚生年金保険法 附則第四十三条第二項（第四種被保険者に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-43/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-43/par-2
- 厚生年金保険法 附則第四十四条第五項（船員任意継続被保険者に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-44/par-5 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-44/par-5
- 厚生年金保険法 附則第四十七条第一項第三号（厚生年金保険の被保険者期間等に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-1/item-3
- 厚生年金保険法 附則第四十七条第三項（厚生年金保険の被保険者期間等に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-47/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-47/par-3
- 厚生年金保険法 附則第四十八条第四項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-48/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-48/par-4
- 厚生年金保険法 附則第四十八条第七項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-48/par-7 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-48/par-7
- 厚生年金保険法 附則第五十二条第一項（厚生年金保険の平均標準報酬月額の計算に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-52/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-52/par-1
- 厚生年金保険法 附則第五十七条第一項（老齢厚生年金の支給要件の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-57/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-57/par-1
- 厚生年金保険法 附則第五十九条第二項第一号（老齢厚生年金の額の計算の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-59/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-59/par-2/item-1
- 厚生年金保険法 附則第五十九条第二項第二号イ（老齢厚生年金の額の計算の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-59/par-2/item-2/sub-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-59/par-2/item-2/sub-1
- 厚生年金保険法 附則第七十九条第一項第一号（厚生年金保険事業に要する費用の負担の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-79/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-79/par-1/item-1
- 厚生年金保険法 附則第八十二条第一項（厚生年金基金の老齢年金給付の基準の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-82/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-82/par-1
- 厚生年金保険法 附則第八十八条第一項（船員保険の厚生年金保険への統合に伴う費用負担の特例等） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-88/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-88/par-1
- 厚生年金保険法 附則第六条第三項（厚生年金保険法による年金たる保険給付等の額に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4121-18/art-6/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-6/par-3

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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-20261013T074650-030, 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
