# 公益通報者保護法 / Whistleblower Protection Act — 附　則 (Supplementary Provisions) This is the Markdown twin of https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51. 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. - Law: 公益通報者保護法 (Whistleblower Protection Act), 平成十六年法律第百二十二号 - English title "Whistleblower Protection 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: 附　則 (Supplementary Provisions) — address `suppl-5021-51` - Text in force since: 2026-07-17 - URL (the page that opens at this provision): https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/416AC0000000122/suppl-5021-51 - 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. --- ## 附　則 令和二年六月一二日法律第五一号 suppl-5021-51 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51 ### 第一条（施行期日） — (Effective Date) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-5021-51/art-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-1 **第一項** この法律は、公布の日から起算して二年を超えない範囲内において政令で定める日から施行する。ただし、附則第三条及び第四条の規定は、公布の日から施行する。 suppl-5021-51/art-1/par-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-1/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-1/par-1 This Act comes into effect as of the day specified by Cabinet Order within a period not exceeding two years from the date of promulgation; provided, however, that the provisions of Article 3 and Article 4 of the Supplementary Provisions come into effect as of the date of promulgation. Ministry of Justice translation — Japanese Law Translation Database System ### 第二条（経過措置） — (Transitional Measures) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-5021-51/art-2 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-2 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-2 **第一項** この法律による改正後の公益通報者保護法（以下「新法」という。）の規定は、この法律の施行後にされる新法第二条第一項に規定する公益通報について適用し、この法律の施行前にされたこの法律による改正前の公益通報者保護法第二条第一項に規定する公益通報については、なお従前の例による。 suppl-5021-51/art-2/par-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-2/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-2/par-1 The provisions of the Whistleblower Protection Act amended by this Act (referred to below as the "new Act") apply to the whistleblowing prescribed in Article 2, paragraph (1) of the new Act that is made after the enforcement of this Act, and prior laws continue to govern the whistleblowing prescribed in Article 2, paragraph (1) of the Whistleblower Protection Act before amendment by this Act that is made before the enforcement of this Act. Ministry of Justice translation — Japanese Law Translation Database System ### 第三条 suppl-5021-51/art-3 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3 **第一項** 内閣総理大臣は、この法律の施行前においても、新法第十一条第四項から第七項までの規定の例により、事業者がとるべき措置に関する指針を定めることができる。 suppl-5021-51/art-3/par-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3/par-1 Even before the enforcement of this Act, the Prime Minister may establish guidelines concerning measures to be taken by business operators, in accordance with the provisions of Article 11, paragraphs (4) through (7) of the new Act. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定により定められた指針は、この法律の施行の日において新法第十一条第四項の規定により定められたものとみなす。 suppl-5021-51/art-3/par-2 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3/par-2 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3/par-2 The guidelines established pursuant to the provisions of the preceding paragraph are deemed to have been established pursuant to the provisions of Article 11, paragraph (4) of the new Act on the effective date of this Act. Ministry of Justice translation — Japanese Law Translation Database System ### 第四条（政令への委任） — (Delegation to Cabinet Order) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-5021-51/art-4 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-4 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-4 **第一項** 前二条に定めるもののほか、この法律の施行に関し必要な経過措置は、政令で定める。 suppl-5021-51/art-4/par-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-4/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-4/par-1 In addition to what is provided for in the preceding two Articles, transitional measures necessary for the enforcement of this Act are specified by Cabinet Order. Ministry of Justice translation — Japanese Law Translation Database System ### 第五条（検討） — (Review) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-5021-51/art-5 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-5 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-5 **第一項** 政府は、この法律の施行後三年を目途として、新法の施行の状況を勘案し、新法第二条第一項に規定する公益通報をしたことを理由とする同条第二項に規定する公益通報者に対する不利益な取扱いの是正に関する措置の在り方及び裁判手続における請求の取扱いその他新法の規定について検討を加え、その結果に基づいて必要な措置を講ずるものとする。 suppl-5021-51/art-5/par-1 · https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-5/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-5/par-1 Approximately three years after the enforcement of this Act, the national government is to consider the status of enforcement of the new Act, review the measures to rectify the disadvantageous treatment of whistleblower prescribed in Article 2, paragraph (2) of the new Act on the grounds of whistleblowing prescribed in paragraph (1) of that Article, the handling of claims in court proceedings, and other provisions of the new Act, and take necessary measures based on the results of the review. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - suppl-5021-51/art-1/par-1: 附則第三条 → 公益通報者保護法 附則第三条 (Supplementary Provisions, Article 3), suppl-5021-51/art-3 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3 - suppl-5021-51/art-1/par-1: 第四条 → 公益通報者保護法 附則第四条 (Supplementary Provisions, Article 4), suppl-5021-51/art-4 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-4 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-4 - suppl-5021-51/art-2/par-1: 新法第二条第一項 → 公益通報者保護法 第二条第一項 (Article 2, paragraph (1)), art-2/par-1 — https://japanlaw.org/ja/whistleblower-protection-act/art-2/par-1 · https://japanlaw.org/l/416AC0000000122/art-2/par-1 - suppl-5021-51/art-3/par-1: 新法第十一条第四項から第七項まで → 公益通報者保護法 第十一条第四項 (Article 11, paragraph (4)), art-11/par-4 — https://japanlaw.org/ja/whistleblower-protection-act/art-11/par-4 · https://japanlaw.org/l/416AC0000000122/art-11/par-4 - suppl-5021-51/art-3/par-1: 新法第十一条第四項から第七項まで → 公益通報者保護法 第十一条第五項 (Article 11, paragraph (5)), art-11/par-5 — https://japanlaw.org/ja/whistleblower-protection-act/art-11/par-5 · https://japanlaw.org/l/416AC0000000122/art-11/par-5 - suppl-5021-51/art-3/par-1: 新法第十一条第四項から第七項まで → 公益通報者保護法 第十一条第六項 (Article 11, paragraph (6)), art-11/par-6 — https://japanlaw.org/ja/whistleblower-protection-act/art-11/par-6 · https://japanlaw.org/l/416AC0000000122/art-11/par-6 - suppl-5021-51/art-3/par-1: 新法第十一条第四項から第七項まで → 公益通報者保護法 第十一条第七項 (Article 11, paragraph (7)), art-11/par-7 — https://japanlaw.org/ja/whistleblower-protection-act/art-11/par-7 · https://japanlaw.org/l/416AC0000000122/art-11/par-7 - suppl-5021-51/art-3/par-2: 前項 → 公益通報者保護法 附則第三条第一項 (Supplementary Provisions, Article 3, paragraph (1)), suppl-5021-51/art-3/par-1 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3/par-1 - suppl-5021-51/art-3/par-2: 新法第十一条第四項 → 公益通報者保護法 第十一条第四項 (Article 11, paragraph (4)), art-11/par-4 — https://japanlaw.org/ja/whistleblower-protection-act/art-11/par-4 · https://japanlaw.org/l/416AC0000000122/art-11/par-4 - suppl-5021-51/art-4/par-1: 前二条 → 公益通報者保護法 附則第二条 (Supplementary Provisions, Article 2), suppl-5021-51/art-2 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-2 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-2 - suppl-5021-51/art-4/par-1: 前二条 → 公益通報者保護法 附則第三条 (Supplementary Provisions, Article 3), suppl-5021-51/art-3 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3 - suppl-5021-51/art-5/par-1: 新法第二条第一項 → 公益通報者保護法 第二条第一項 (Article 2, paragraph (1)), art-2/par-1 — https://japanlaw.org/ja/whistleblower-protection-act/art-2/par-1 · https://japanlaw.org/l/416AC0000000122/art-2/par-1 - suppl-5021-51/art-5/par-1: 同条第二項 → 公益通報者保護法 第二条第二項 (Article 2, paragraph (2)), art-2/par-2 — https://japanlaw.org/ja/whistleblower-protection-act/art-2/par-2 · https://japanlaw.org/l/416AC0000000122/art-2/par-2 ## Cited by 3 provisions cite this one. No official source publishes this direction. - 公益通報者保護法 附則第一条第一項（施行期日） — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-1/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-1/par-1 - 公益通報者保護法 附則第三条第二項 — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-3/par-2 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-3/par-2 - 公益通報者保護法 附則第四条第一項（政令への委任） — https://japanlaw.org/ja/whistleblower-protection-act/suppl-5021-51/art-4/par-1 · https://japanlaw.org/l/416AC0000000122/suppl-5021-51/art-4/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 公益通報者保護法 — the text in force from 2026-07-17 (https://laws.e-gov.go.jp/law/416AC0000000122/20260717_508AC0000000062), retrieved 2026-10-26 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Whistleblower Protection Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/5109/tb), retrieved 2026-10-26 - This site's parser, version 218 — 公益通報者保護法 — structure, counts, cross-references and defined terms, computed 2026-10-26