# 仲裁法 / Arbitration Act — 第十二条 (Article 12)

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- Law: 仲裁法 (Arbitration Act), 平成十五年法律第百三十八号
- English title "Arbitration 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: 第十二条 (Article 12)（書面によってする通知） — address `art-12`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/en/arbitration-act/art-12
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/415AC0000000138/art-12
- 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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### 第十二条（書面によってする通知） — (Notice to Be Given by Means of Documents)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-12 · https://japanlaw.org/en/arbitration-act/art-12 · https://japanlaw.org/l/415AC0000000138/art-12</sup>

**第一項**  仲裁手続における通知を書面によってするときは、当事者間に別段の合意がない限り、名宛人が直接当該書面を受領した時又は名宛人の住所、常居所、営業所、事務所若しくは配達場所（名宛人が発信人からの書面の配達を受けるべき場所として指定した場所をいう。以下この条において同じ。）に当該書面が配達された時に、通知がされたものとする。
<sup>art-12/par-1 · https://japanlaw.org/en/arbitration-act/art-12/par-1 · https://japanlaw.org/l/415AC0000000138/art-12/par-1</sup>
Unless otherwise agreed between the parties, if a notice in an arbitration procedure is to be given by means of documents, the notice is deemed to have been given at the time when the addressee directly receives the document or the time when the document is delivered to the addressee's domicile, habitual residence, business office, office, or place of delivery (meaning the place designated by the addressee as the place of delivery of documents from the sender; hereinafter the same applies in this Article).
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第二項**  裁判所は、仲裁手続における書面によってする通知について、当該書面を名宛人の住所、常居所、営業所、事務所又は配達場所に配達することが可能であるが、発信人が当該配達の事実を証明する資料を得ることが困難である場合において、必要があると認めるときは、発信人の申立てにより、裁判所が当該書面の送達をする旨の決定をすることができる。この場合における送達については、民事訴訟法第百四条及び第百十条から第百十三条までの規定は適用しない。
<sup>art-12/par-2 · https://japanlaw.org/en/arbitration-act/art-12/par-2 · https://japanlaw.org/l/415AC0000000138/art-12/par-2</sup>
With regard to the notice to be given by means of documents in an arbitration procedure, if it is possible to deliver the document to the addressee's domicile, habitual residence, business office, office, or place of delivery of the addressee, but it is difficult for the sender to obtain the materials that prove the fact of delivery, and the court finds it necessary, it may decide that it will serve the document by itself, upon the petition of the sender. The provisions of Article 104, and Articles 110 through 113 of the Code of Civil Procedure do not apply to the service in this case.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第三項**  前項の規定は、当事者間に同項の送達を行わない旨の合意がある場合には、適用しない。
<sup>art-12/par-3 · https://japanlaw.org/en/arbitration-act/art-12/par-3 · https://japanlaw.org/l/415AC0000000138/art-12/par-3</sup>
The provisions of the preceding paragraph do not apply if an agreement to the effect that the service referred to in that paragraph will not be made has been reached between the parties.
<sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "The provisions of the preceding paragraph not apply if an agreement to the effect that the service referred to in that paragraph will not be made has been reached between the parties." — https://www.japaneselawtranslation.go.jp/en/laws/view/4440/tb</sup>

**第四項**  第二項の申立てに係る事件は、第五条第一項及び第二項の規定にかかわらず、同条第一項第一号及び第二号に掲げる裁判所並びに名宛人の住所、常居所、営業所、事務所又は配達場所の所在地を管轄する地方裁判所の管轄に専属する。
<sup>art-12/par-4 · https://japanlaw.org/en/arbitration-act/art-12/par-4 · https://japanlaw.org/l/415AC0000000138/art-12/par-4</sup>
Notwithstanding the provisions of Article 5, paragraphs (1) and (2), a case related to the petition referred to in paragraph (2) is under the exclusive jurisdiction of the courts stated in paragraph (1), items (i) and (ii) of that Article and the district court which has jurisdiction over the location of the addressee's domicile, habitual residence, business office, office, or place of delivery.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第五項**  仲裁手続における通知を書面によってする場合において、名宛人の住所、常居所、営業所、事務所及び配達場所の全てが相当の調査をしても分からないときは、当事者間に別段の合意がない限り、発信人は、名宛人の最後の住所、常居所、営業所、事務所又は配達場所に宛てて当該書面を書留郵便その他配達を試みたことを証明することができる方法により発送すれば足りる。この場合においては、当該書面が通常到達すべきであった時に通知がされたものとする。
<sup>art-12/par-5 · https://japanlaw.org/en/arbitration-act/art-12/par-5 · https://japanlaw.org/l/415AC0000000138/art-12/par-5</sup>
Unless otherwise agreed between the parties, if a notice in an arbitration procedure is to be given by means of documents, and the addressee's domicile, habitual residence, business office, office, and place of delivery are all impossible to find after making a reasonable inquiry, it is sufficient for the sender to send the document to the addressee's last-known domicile, habitual residence, business office, office, or place of delivery by registered mail or any other means by which they can certify that they have attempted to deliver it. In this case, the notice is deemed to have been given at the time when the document should normally have arrived.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第六項**  第一項及び前項の規定は、この法律の規定により裁判所が行う手続において通知を行う場合については、適用しない。
<sup>art-12/par-6 · https://japanlaw.org/en/arbitration-act/art-12/par-6 · https://japanlaw.org/l/415AC0000000138/art-12/par-6</sup>
The provisions of paragraph (1) and the preceding paragraph do not apply to the case in which a notice is to be given in the proceeding carried out by the court pursuant to the provisions of this Act.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-12/par-1: この条 → 仲裁法 第十二条 (Article 12), art-12 — https://japanlaw.org/en/arbitration-act/art-12 · https://japanlaw.org/l/415AC0000000138/art-12
- art-12/par-2: 民事訴訟法第百四条 → 民事訴訟法 第百四条 (Article 104), art-104 — https://japanlaw.org/en/code-of-civil-procedure/art-104 · https://japanlaw.org/l/408AC0000000109/art-104
- art-12/par-2: 第百十条から第百十三条まで → 民事訴訟法 第百十条 (Article 110), art-110 — https://japanlaw.org/en/code-of-civil-procedure/art-110 · https://japanlaw.org/l/408AC0000000109/art-110
- art-12/par-2: 第百十条から第百十三条まで → 民事訴訟法 第百十一条 (Article 111), art-111 — https://japanlaw.org/en/code-of-civil-procedure/art-111 · https://japanlaw.org/l/408AC0000000109/art-111
- art-12/par-2: 第百十条から第百十三条まで → 民事訴訟法 第百十二条 (Article 112), art-112 — https://japanlaw.org/en/code-of-civil-procedure/art-112 · https://japanlaw.org/l/408AC0000000109/art-112
- art-12/par-2: 第百十条から第百十三条まで → 民事訴訟法 第百十三条 (Article 113), art-113 — https://japanlaw.org/en/code-of-civil-procedure/art-113 · https://japanlaw.org/l/408AC0000000109/art-113
- art-12/par-3: 前項 → 仲裁法 第十二条第二項 (Article 12, paragraph (2)), art-12/par-2 — https://japanlaw.org/en/arbitration-act/art-12/par-2 · https://japanlaw.org/l/415AC0000000138/art-12/par-2
- art-12/par-4: 第二項 → 仲裁法 第十二条第二項 (Article 12, paragraph (2)), art-12/par-2 — https://japanlaw.org/en/arbitration-act/art-12/par-2 · https://japanlaw.org/l/415AC0000000138/art-12/par-2
- art-12/par-4: 第五条第一項 → 仲裁法 第五条第一項 (Article 5, paragraph (1)), art-5/par-1 — https://japanlaw.org/en/arbitration-act/art-5/par-1 · https://japanlaw.org/l/415AC0000000138/art-5/par-1
- art-12/par-4: 第二項 → 仲裁法 第五条第二項 (Article 5, paragraph (2)), art-5/par-2 — https://japanlaw.org/en/arbitration-act/art-5/par-2 · https://japanlaw.org/l/415AC0000000138/art-5/par-2
- art-12/par-4: 同条第一項第一号 → 仲裁法 第五条第一項第一号 (Article 5, paragraph (1), item (i)), art-5/par-1/item-1 — https://japanlaw.org/en/arbitration-act/art-5/par-1/item-1 · https://japanlaw.org/l/415AC0000000138/art-5/par-1/item-1
- art-12/par-4: 第二号 → 仲裁法 第五条第一項第二号 (Article 5, paragraph (1), item (ii)), art-5/par-1/item-2 — https://japanlaw.org/en/arbitration-act/art-5/par-1/item-2 · https://japanlaw.org/l/415AC0000000138/art-5/par-1/item-2
- art-12/par-6: 第一項 → 仲裁法 第十二条第一項 (Article 12, paragraph (1)), art-12/par-1 — https://japanlaw.org/en/arbitration-act/art-12/par-1 · https://japanlaw.org/l/415AC0000000138/art-12/par-1
- art-12/par-6: 前項 → 仲裁法 第十二条第五項 (Article 12, paragraph (5)), art-12/par-5 — https://japanlaw.org/en/arbitration-act/art-12/par-5 · https://japanlaw.org/l/415AC0000000138/art-12/par-5

## Cited by

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

- 仲裁法 第十二条第一項（書面によってする通知） — https://japanlaw.org/en/arbitration-act/art-12/par-1 · https://japanlaw.org/l/415AC0000000138/art-12/par-1
- 仲裁法 第十二条第三項（書面によってする通知） — https://japanlaw.org/en/arbitration-act/art-12/par-3 · https://japanlaw.org/l/415AC0000000138/art-12/par-3
- 仲裁法 第十二条第四項（書面によってする通知） — https://japanlaw.org/en/arbitration-act/art-12/par-4 · https://japanlaw.org/l/415AC0000000138/art-12/par-4
- 仲裁法 第十二条第六項（書面によってする通知） — https://japanlaw.org/en/arbitration-act/art-12/par-6 · https://japanlaw.org/l/415AC0000000138/art-12/par-6

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## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-11-02
- e-Gov 法令検索, Digital Agency (デジタル庁) — 仲裁法 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/415AC0000000138/20260521_504AC0000000048), retrieved 2026-11-01
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Arbitration Act (仲裁法), Article 12, paragraph (3) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4440/tb), retrieved 2026-11-01
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Arbitration Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4440/tb), retrieved 2026-11-01
- This site's parser, version 219 — 仲裁法 — structure, counts, cross-references and defined terms, computed 2026-11-01
