# Article 27, paragraph (1), its wordings — Arbitration Act

This is the Markdown twin of https://japanlaw.org/en/arbitration-act/history/art-27/par-1. 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 27, paragraph (1) (第二十七条第一項) changed with each amendment, and how it will change.

- Law: Arbitration Act (仲裁法) — https://japanlaw.org/en/arbitration-act
- Provision: Article 27, paragraph (1) (第二十七条第一項) — https://japanlaw.org/en/arbitration-act/art-27/par-1 (as Markdown: https://japanlaw.org/md/en/arbitration-act/art-27/par-1)
- 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:

> 仲裁手続においては、当事者は、この法律の規定又は当事者間の合意により定められた仲裁手続の準則（いずれも公の秩序に関しないものに限る。）が遵守されていないことを知りながら、遅滞なく（異議を述べるべき期限についての定めがある場合にあっては、当該期限までに）異議を述べないときは、当事者間に別段の合意がない限り、異議を述べる権利を放棄したものとみなす。

English (Japanese Law Translation, Ministry of Justice):

> In an arbitration procedure, if a party that knows that any provisions of this Act or rules of an arbitration procedure which have been provided by the agreement of the parties (limited to those unrelated to public order) have not been complied with does not state their objection without delay (or if a period within which an objection should be stated is provided for, within the period), the party is deemed to have waived their right to object, unless otherwise agreed between the parties.

## 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 29, paragraph (1); its words stay the same (Act No. 53 of 2023) — https://japanlaw.org/en/arbitration-act/amendments/20280613_505AC0000000053

Japanese:

> 仲裁手続においては、当事者は、この法律の規定又は当事者間の合意により定められた仲裁手続の準則（いずれも公の秩序に関しないものに限る。）が遵守されていないことを知りながら、遅滞なく（異議を述べるべき期限についての定めがある場合にあっては、当該期限までに）異議を述べないときは、当事者間に別段の合意がない限り、異議を述べる権利を放棄したものとみなす。

English (Japanese Law Translation, Ministry of Justice):

> In an arbitration procedure, if a party that knows that any provisions of this Act or rules of an arbitration procedure which have been provided by the agreement of the parties (limited to those unrelated to public order) have not been complied with does not state their objection without delay (or if a period within which an objection should be stated is provided for, within the period), the party is deemed to have waived their right to object, unless otherwise agreed between the parties.

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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)