# 民法 / Civil Code — 第二十一条 (Supplementary Provisions, Article 21)

- Law: 民法 (Civil Code), 明治二十九年法律第八十九号
- English title "Civil Code": 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: 第二十一条 (Supplementary Provisions, Article 21)（保証債務に関する経過措置） — address `suppl-4291-44/art-21`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/suppl-4291-44/art-21
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21
- 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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### 第二十一条（保証債務に関する経過措置） — Transitional Measures Concerning Guarantee Obligations
<sup>caption: machine translation, not official</sup>
<sup>suppl-4291-44/art-21 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-21 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21</sup>

**第一項**  施行日前に締結された保証契約に係る保証債務については、なお従前の例による。
<sup>suppl-4291-44/art-21/par-1 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-21/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21/par-1</sup>
With regard to a guarantee obligation relating to a guarantee contract concluded before the Effective Date, the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

**第二項**  保証人になろうとする者は、施行日前においても、新法第四百六十五条の六第一項（新法第四百六十五条の八第一項において準用する場合を含む。）の公正証書の作成を嘱託することができる。
<sup>suppl-4291-44/art-21/par-2 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-21/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21/par-2</sup>
A person intending to become a guarantor may, even before the Effective Date, request the preparation of the notarial instrument referred to in Article 465-6, paragraph (1) of the New Act (including as applied mutatis mutandis pursuant to Article 465-8, paragraph (1) of the New Act).
<sup>machine translation, not official</sup>

**第三項**  公証人は、前項の規定による公正証書の作成の嘱託があった場合には、施行日前においても、新法第四百六十五条の六第二項及び第四百六十五条の七（これらの規定を新法第四百六十五条の八第一項において準用する場合を含む。）の規定の例により、その作成をすることができる。
<sup>suppl-4291-44/art-21/par-3 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-21/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21/par-3</sup>
If a request for the preparation of a notarial instrument has been made pursuant to the provisions of the preceding paragraph, a notary may, even before the Effective Date, prepare it in accordance with the provisions of Article 465-6, paragraph (2) and Article 465-7 of the New Act (including as applied mutatis mutandis pursuant to Article 465-8, paragraph (1) of the New Act).
<sup>machine translation, not official</sup>

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## Cites
- suppl-4291-44/art-21/par-2: 新法第四百六十五条の六第一項 → 民法 第四百六十五条の六第一項 (Article 465-6, paragraph (1)), art-465-6/par-1 — https://japanlaw.org/en/civil-code/art-465-6/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-6/par-1
- suppl-4291-44/art-21/par-2: 新法第四百六十五条の八第一項 → 民法 第四百六十五条の八第一項 (Article 465-8, paragraph (1)), art-465-8/par-1 — https://japanlaw.org/en/civil-code/art-465-8/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-8/par-1
- suppl-4291-44/art-21/par-3: 前項 → 民法 附則第二十一条第二項 (Supplementary Provisions, Article 21, paragraph (2)), suppl-4291-44/art-21/par-2 — https://japanlaw.org/en/civil-code/suppl-4291-44/art-21/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21/par-2
- suppl-4291-44/art-21/par-3: 新法第四百六十五条の六第二項 → 民法 第四百六十五条の六第二項 (Article 465-6, paragraph (2)), art-465-6/par-2 — https://japanlaw.org/en/civil-code/art-465-6/par-2 · https://japanlaw.org/l/129AC0000000089/art-465-6/par-2
- suppl-4291-44/art-21/par-3: 第四百六十五条の七 → 民法 第四百六十五条の七 (Article 465-7), art-465-7 — https://japanlaw.org/en/civil-code/art-465-7 · https://japanlaw.org/l/129AC0000000089/art-465-7
- suppl-4291-44/art-21/par-3: 新法第四百六十五条の八第一項 → 民法 第四百六十五条の八第一項 (Article 465-8, paragraph (1)), art-465-8/par-1 — https://japanlaw.org/en/civil-code/art-465-8/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-8/par-1

## Cited by

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

- 民法 附則第一条第一項第三号（施行期日） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-1/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-1/par-1/item-3
- 民法 附則第二十一条第三項（保証債務に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-21/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-21/par-3

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11
- claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-022, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
