# Article 4, paragraph (1), its wordings — Whistleblower Protection Act

This is the Markdown twin of https://japanlaw.org/en/whistleblower-protection-act/history/art-4/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 4, paragraph (1) (第四条第一項) changed with each amendment, and how it will change.

- Law: Whistleblower Protection Act (公益通報者保護法) — https://japanlaw.org/en/whistleblower-protection-act
- Provision: Article 4, paragraph (1) (第四条第一項) — https://japanlaw.org/en/whistleblower-protection-act/art-4/par-1 (as Markdown: https://japanlaw.org/md/en/whistleblower-protection-act/art-4/par-1)
- The law's amendments: https://japanlaw.org/en/whistleblower-protection-act/amendments
- 2 wordings, oldest first.

## 1. Before Act No. 62 of 2025

- State: In force

Japanese:

> 第二条第一項第二号に定める事業者（当該派遣労働者に係る労働者派遣の役務の提供を受けるものに限る。以下この条及び次条第二項において同じ。）の指揮命令の下に労働する派遣労働者である公益通報者が前条各号に定める公益通報をしたことを理由として第二条第一項第二号に定める事業者が行った労働者派遣契約（労働者派遣法第二十六条第一項に規定する労働者派遣契約をいう。）の解除は、無効とする。

English (Machine translation, not official):

> The cancellation of a worker dispatch contract (meaning a worker dispatch contract prescribed in Article 26, paragraph (1) of the Worker Dispatching Act) by a business operator provided for in Article 2, paragraph (1), item (ii) is void if it is on the grounds that a whistleblower who is a dispatched worker working under the directions and orders of a business operator provided for in Article 2, paragraph (1), item (ii) (limited to a business operator receiving provision of the services of worker dispatch related to the relevant dispatched worker; the same applies in this Article and Article 5, paragraph (2)) has conducted whistleblowing provided for in the items of the preceding Article.

## 2. 1 December 2026 — Act No. 62 of 2025

- State: Not yet in force
- Takes effect: 1 December 2026
- The amendment: Reworded (Act No. 62 of 2025) — https://japanlaw.org/en/whistleblower-protection-act/amendments/20261201_507AC0000000062

Japanese:

> 第二条第一項第二号に定める事業者（当該派遣労働者に係る労働者派遣の役務の提供を受けるものに限る。次項において同じ。）は、その指揮命令の下に労働する派遣労働者である公益通報者が前条第一項各号に定める公益通報をしたことを理由として、次に掲げる行為をしてはならない。

English (Japanese Law Translation, Ministry of Justice):

> A business operator provided for in Article 2, paragraph (1), item (ii) (limited to a business operator receiving provision of worker dispatching services related to the relevant dispatched worker; the same applies in the following paragraph) must not conduct any of the following acts on the grounds that a whistleblower who is a dispatched worker working under the directions and orders of the business operator has conducted a whistleblowing provided for in the items of paragraph (1) of the preceding Article:

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## Sources

- The dates and the amending laws: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/416AC0000000122)
- English name of the law: Japanese Law Translation, Ministry of Justice (https://www.japaneselawtranslation.go.jp/en/laws/view/5109/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/416AC0000000122/20261102_508AC0000000062)
- The Japanese text after: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/416AC0000000122/20261201_507AC0000000062)