# Article 13, paragraph (5), its wordings — Arbitration Act

This is the Markdown twin of https://japanlaw.org/en/arbitration-act/history/art-13/par-5. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

How the wording of Article 13, paragraph (5) (第十三条第五項) changed with each amendment, and how it will change.

- Law: Arbitration Act (仲裁法) — https://japanlaw.org/en/arbitration-act
- Provision: Article 13, paragraph (5) (第十三条第五項) — https://japanlaw.org/en/arbitration-act/art-13/par-5 (as Markdown: https://japanlaw.org/md/en/arbitration-act/art-13/par-5)
- The law's amendments: https://japanlaw.org/en/arbitration-act/amendments
- 2 wordings, oldest first.

## 1. Before Act No. 53 of 2023

- State: In force

Japanese:

> 仲裁手続において、一方の当事者が提出した主張書面に仲裁合意の内容の記載があり、これに対して他方の当事者が提出した主張書面にこれを争う旨の記載がないときは、その仲裁合意は、書面によってされたものとみなす。

English (Japanese Law Translation, Ministry of Justice):

> In an arbitration procedure, if a written allegation that a party has submitted contains the contents of an arbitration agreement, and another written allegation that the other party has submitted in response to the allegation in question does not contain anything to dispute the contents of the arbitration agreement, the arbitration agreement is deemed to be made in writing.

## 2. By 13 June 2028 — Act No. 53 of 2023

- State: Not yet in force
- Takes effect: By 13 June 2028
- The amendment: Moved to Article 15, paragraph (5); its words stay the same (Act No. 53 of 2023) — https://japanlaw.org/en/arbitration-act/amendments/20280613_505AC0000000053

Japanese:

> 仲裁手続において、一方の当事者が提出した主張書面に仲裁合意の内容の記載があり、これに対して他方の当事者が提出した主張書面にこれを争う旨の記載がないときは、その仲裁合意は、書面によってされたものとみなす。

English (Japanese Law Translation, Ministry of Justice):

> In an arbitration procedure, if a written allegation that a party has submitted contains the contents of an arbitration agreement, and another written allegation that the other party has submitted in response to the allegation in question does not contain anything to dispute the contents of the arbitration agreement, the arbitration agreement is deemed to be made in writing.

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## Sources

- The dates and the amending laws: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138)
- English name of the law: Japanese Law Translation, Ministry of Justice (https://www.japaneselawtranslation.go.jp/en/laws/view/4440/tb)
- English titles of the amending laws: Written for this site with AI
- The Japanese text before: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138/20260521_504AC0000000048)
- The Japanese text after: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138/20280613_505AC0000000053)