# 私的独占の禁止及び公正取引の確保に関する法律 / Act on Prohibition of Private Monopolization and Maintenance of Fair Trade — 第八条 (Supplementary Provisions, Article 8)

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- Law: 私的独占の禁止及び公正取引の確保に関する法律 (Act on Prohibition of Private Monopolization and Maintenance of Fair Trade), 昭和二十二年法律第五十四号
- English title "Act on Prohibition of Private Monopolization and Maintenance of Fair Trade": 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: 第八条 (Supplementary Provisions, Article 8)（審決及び排除措置命令に関する経過措置） — address `suppl-4211-51/art-8`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8
- e-Gov law ID: 322AC0000000054 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page.
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Only the Japanese as published by the government has legal effect; the text
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They are never merged and never substituted for one another.

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### 第八条（審決及び排除措置命令に関する経過措置） — Transitional Measures Concerning Decisions and Cease and Desist Orders
<sup>caption: machine translation, not official</sup>
<sup>suppl-4211-51/art-8 · https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8</sup>

**第一項**  新私的独占禁止法第二十条の二の規定の適用については、当該事業者が、同条に規定する違反行為に係る事件について私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号に掲げる処分が最初に行われた日から遡り十年以内（当該処分が行われなかったときは、当該事業者が当該違反行為について事前通知を受けた日から遡り十年以内）に、平成十八年一月改正前独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第一号に規定する行為に相当するものに限る。）について平成十八年一月改正前独占禁止法第四十八条第四項、第五十三条の三若しくは第五十四条の規定による審決を受けたことがあるとき（当該審決が確定している場合に限る。）又は旧独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第一号に規定する行為に相当するものに限る。）について旧独占禁止法第二十条の規定による命令を受けたことがあるとき（当該命令が確定している場合に限る。）若しくは旧独占禁止法第六十六条第四項の規定による審決（原処分の全部を取り消す場合のものに限る。）を受けたことがあるとき（当該審決が確定している場合に限る。）は、当該審決又は命令を新私的独占禁止法第二十条の二の規定による命令であって確定しているものとみなす。
<sup>suppl-4211-51/art-8/par-1 · https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8/par-1</sup>
With regard to the application of Article 20-2 of the New Act on Prohibition of Private Monopolization, if the enterprise has, within 10 years counting back from the day on which a disposition listed in Article 47, paragraph (1), item (iv) of the Act on Prohibition of Private Monopolization and Maintenance of Fair Trade was first carried out in a case concerning the violation prescribed in Article 20-2 of the New Act on Prohibition of Private Monopolization (or, where such a disposition was not carried out, within 10 years counting back from the day on which the enterprise received advance notification of the violation), received a decision pursuant to Article 48, paragraph (4), Article 53-3, or Article 54 of the Antimonopoly Act Before the January 2006 Amendment for an act in violation of the provisions of Article 19 of the Antimonopoly Act Before the January 2006 Amendment (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (i) of the New Act on Prohibition of Private Monopolization) (limited to the case where that decision has become final and binding), or has, for an act in violation of the provisions of Article 19 of the Former Antimonopoly Act (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (i) of the New Act on Prohibition of Private Monopolization), received an order pursuant to Article 20 of the Former Antimonopoly Act (limited to the case where that order has become final and binding) or a decision pursuant to Article 66, paragraph (4) of the Former Antimonopoly Act (limited to one rescinding the whole of the original disposition) (limited to the case where that decision has become final and binding), that decision or order is deemed to be an order pursuant to Article 20-2 of the New Act on Prohibition of Private Monopolization that has become final and binding.
<sup>machine translation, not official</sup>

**第二項**  新私的独占禁止法第二十条の三の規定の適用については、当該事業者が、同条に規定する違反行為に係る事件について私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号に掲げる処分が最初に行われた日から遡り十年以内（当該処分が行われなかったときは、当該事業者が当該違反行為について事前通知を受けた日から遡り十年以内）に、平成十八年一月改正前独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第二号に規定する行為に相当するものに限る。）について平成十八年一月改正前独占禁止法第四十八条第四項、第五十三条の三若しくは第五十四条の規定による審決を受けたことがあるとき（当該審決が確定している場合に限る。）又は旧独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第二号に規定する行為に相当するものに限る。）について旧独占禁止法第二十条の規定による命令を受けたことがあるとき（当該命令が確定している場合に限る。）若しくは旧独占禁止法第六十六条第四項の規定による審決（原処分の全部を取り消す場合のものに限る。）を受けたことがあるとき（当該審決が確定している場合に限る。）は、当該審決又は命令を新私的独占禁止法第二十条の三の規定による命令であって確定しているものとみなす。
<sup>suppl-4211-51/art-8/par-2 · https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8/par-2</sup>
With regard to the application of Article 20-3 of the New Act on Prohibition of Private Monopolization, if the enterprise has, within 10 years counting back from the day on which a disposition listed in Article 47, paragraph (1), item (iv) of the Act on Prohibition of Private Monopolization and Maintenance of Fair Trade was first carried out in a case concerning the violation prescribed in Article 20-3 of the New Act on Prohibition of Private Monopolization (or, where such a disposition was not carried out, within 10 years counting back from the day on which the enterprise received advance notification of the violation), received a decision pursuant to Article 48, paragraph (4), Article 53-3, or Article 54 of the Antimonopoly Act Before the January 2006 Amendment for an act in violation of the provisions of Article 19 of the Antimonopoly Act Before the January 2006 Amendment (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (ii) of the New Act on Prohibition of Private Monopolization) (limited to the case where that decision has become final and binding), or has, for an act in violation of the provisions of Article 19 of the Former Antimonopoly Act (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (ii) of the New Act on Prohibition of Private Monopolization), received an order pursuant to Article 20 of the Former Antimonopoly Act (limited to the case where that order has become final and binding) or a decision pursuant to Article 66, paragraph (4) of the Former Antimonopoly Act (limited to one rescinding the whole of the original disposition) (limited to the case where that decision has become final and binding), that decision or order is deemed to be an order pursuant to Article 20-3 of the New Act on Prohibition of Private Monopolization that has become final and binding.
<sup>machine translation, not official</sup>

**第三項**  新私的独占禁止法第二十条の四の規定の適用については、当該事業者が、同条に規定する違反行為に係る事件について私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号に掲げる処分が最初に行われた日から遡り十年以内（当該処分が行われなかったときは、当該事業者が当該違反行為について事前通知を受けた日から遡り十年以内）に、平成十八年一月改正前独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第三号に規定する行為に相当するものに限る。）について平成十八年一月改正前独占禁止法第四十八条第四項、第五十三条の三若しくは第五十四条の規定による審決を受けたことがあるとき（当該審決が確定している場合に限る。）又は旧独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第三号に規定する行為に相当するものに限る。）について旧独占禁止法第二十条の規定による命令を受けたことがあるとき（当該命令が確定している場合に限る。）若しくは旧独占禁止法第六十六条第四項の規定による審決（原処分の全部を取り消す場合のものに限る。）を受けたことがあるとき（当該審決が確定している場合に限る。）は、当該審決又は命令を新私的独占禁止法第二十条の四の規定による命令であって確定しているものとみなす。
<sup>suppl-4211-51/art-8/par-3 · https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8/par-3</sup>
With regard to the application of Article 20-4 of the New Act on Prohibition of Private Monopolization, if the enterprise has, within 10 years counting back from the day on which a disposition listed in Article 47, paragraph (1), item (iv) of the Act on Prohibition of Private Monopolization and Maintenance of Fair Trade was first carried out in a case concerning the violation prescribed in Article 20-4 of the New Act on Prohibition of Private Monopolization (or, where such a disposition was not carried out, within 10 years counting back from the day on which the enterprise received advance notification of the violation), received a decision pursuant to Article 48, paragraph (4), Article 53-3, or Article 54 of the Antimonopoly Act Before the January 2006 Amendment for an act in violation of the provisions of Article 19 of the Antimonopoly Act Before the January 2006 Amendment (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (iii) of the New Act on Prohibition of Private Monopolization) (limited to the case where that decision has become final and binding), or has, for an act in violation of the provisions of Article 19 of the Former Antimonopoly Act (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (iii) of the New Act on Prohibition of Private Monopolization), received an order pursuant to Article 20 of the Former Antimonopoly Act (limited to the case where that order has become final and binding) or a decision pursuant to Article 66, paragraph (4) of the Former Antimonopoly Act (limited to one rescinding the whole of the original disposition) (limited to the case where that decision has become final and binding), that decision or order is deemed to be an order pursuant to Article 20-4 of the New Act on Prohibition of Private Monopolization that has become final and binding.
<sup>machine translation, not official</sup>

**第四項**  新私的独占禁止法第二十条の五の規定の適用については、当該事業者が、同条に規定する違反行為に係る事件について私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号に掲げる処分が最初に行われた日から遡り十年以内（当該処分が行われなかったときは、当該事業者が当該違反行為について事前通知を受けた日から遡り十年以内）に、平成十八年一月改正前独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第四号に規定する行為に相当するものに限る。）について平成十八年一月改正前独占禁止法第四十八条第四項、第五十三条の三若しくは第五十四条の規定による審決を受けたことがあるとき（当該審決が確定している場合に限る。）又は旧独占禁止法第十九条の規定に違反する行為（新私的独占禁止法第二条第九項第四号に規定する行為に相当するものに限る。）について旧独占禁止法第二十条の規定による命令を受けたことがあるとき（当該命令が確定している場合に限る。）若しくは旧独占禁止法第六十六条第四項の規定による審決（原処分の全部を取り消す場合のものに限る。）を受けたことがあるとき（当該審決が確定している場合に限る。）は、当該審決又は命令を新私的独占禁止法第二十条の五の規定による命令であって確定しているものとみなす。
<sup>suppl-4211-51/art-8/par-4 · https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-8/par-4</sup>
With regard to the application of Article 20-5 of the New Act on Prohibition of Private Monopolization, if the enterprise has, within 10 years counting back from the day on which a disposition listed in Article 47, paragraph (1), item (iv) of the Act on Prohibition of Private Monopolization and Maintenance of Fair Trade was first carried out in a case concerning the violation prescribed in Article 20-5 of the New Act on Prohibition of Private Monopolization (or, where such a disposition was not carried out, within 10 years counting back from the day on which the enterprise received advance notification of the violation), received a decision pursuant to Article 48, paragraph (4), Article 53-3, or Article 54 of the Antimonopoly Act Before the January 2006 Amendment for an act in violation of the provisions of Article 19 of the Antimonopoly Act Before the January 2006 Amendment (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (iv) of the New Act on Prohibition of Private Monopolization) (limited to the case where that decision has become final and binding), or has, for an act in violation of the provisions of Article 19 of the Former Antimonopoly Act (limited to one equivalent to the act prescribed in Article 2, paragraph (9), item (iv) of the New Act on Prohibition of Private Monopolization), received an order pursuant to Article 20 of the Former Antimonopoly Act (limited to the case where that order has become final and binding) or a decision pursuant to Article 66, paragraph (4) of the Former Antimonopoly Act (limited to one rescinding the whole of the original disposition) (limited to the case where that decision has become final and binding), that decision or order is deemed to be an order pursuant to Article 20-5 of the New Act on Prohibition of Private Monopolization that has become final and binding.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4211-51/art-8/par-1: 新私的独占禁止法第二十条の二 → 私的独占の禁止及び公正取引の確保に関する法律 第二十条の二 (Article 20-2), art-20-2 — https://japanlaw.org/en/antimonopoly-act/art-20-2
- suppl-4211-51/art-8/par-1: 私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号 → 私的独占の禁止及び公正取引の確保に関する法律 第四十七条第一項第四号 (Article 47, paragraph (1), item (iv)), art-47/par-1/item-4 — https://japanlaw.org/en/antimonopoly-act/art-47/par-1/item-4
- suppl-4211-51/art-8/par-1: 新私的独占禁止法第二条第九項第一号 → 私的独占の禁止及び公正取引の確保に関する法律 第二条第九項第一号 (Article 2, paragraph (9), item (i)), art-2/par-9/item-1 — https://japanlaw.org/en/antimonopoly-act/art-2/par-9/item-1
- suppl-4211-51/art-8/par-2: 新私的独占禁止法第二十条の三 → 私的独占の禁止及び公正取引の確保に関する法律 第二十条の三 (Article 20-3), art-20-3 — https://japanlaw.org/en/antimonopoly-act/art-20-3
- suppl-4211-51/art-8/par-2: 私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号 → 私的独占の禁止及び公正取引の確保に関する法律 第四十七条第一項第四号 (Article 47, paragraph (1), item (iv)), art-47/par-1/item-4 — https://japanlaw.org/en/antimonopoly-act/art-47/par-1/item-4
- suppl-4211-51/art-8/par-2: 新私的独占禁止法第二条第九項第二号 → 私的独占の禁止及び公正取引の確保に関する法律 第二条第九項第二号 (Article 2, paragraph (9), item (ii)), art-2/par-9/item-2 — https://japanlaw.org/en/antimonopoly-act/art-2/par-9/item-2
- suppl-4211-51/art-8/par-3: 新私的独占禁止法第二十条の四 → 私的独占の禁止及び公正取引の確保に関する法律 第二十条の四 (Article 20-4), art-20-4 — https://japanlaw.org/en/antimonopoly-act/art-20-4
- suppl-4211-51/art-8/par-3: 私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号 → 私的独占の禁止及び公正取引の確保に関する法律 第四十七条第一項第四号 (Article 47, paragraph (1), item (iv)), art-47/par-1/item-4 — https://japanlaw.org/en/antimonopoly-act/art-47/par-1/item-4
- suppl-4211-51/art-8/par-3: 新私的独占禁止法第二条第九項第三号 → 私的独占の禁止及び公正取引の確保に関する法律 第二条第九項第三号 (Article 2, paragraph (9), item (iii)), art-2/par-9/item-3 — https://japanlaw.org/en/antimonopoly-act/art-2/par-9/item-3
- suppl-4211-51/art-8/par-4: 新私的独占禁止法第二十条の五 → 私的独占の禁止及び公正取引の確保に関する法律 第二十条の五 (Article 20-5), art-20-5 — https://japanlaw.org/en/antimonopoly-act/art-20-5
- suppl-4211-51/art-8/par-4: 私的独占の禁止及び公正取引の確保に関する法律第四十七条第一項第四号 → 私的独占の禁止及び公正取引の確保に関する法律 第四十七条第一項第四号 (Article 47, paragraph (1), item (iv)), art-47/par-1/item-4 — https://japanlaw.org/en/antimonopoly-act/art-47/par-1/item-4
- suppl-4211-51/art-8/par-4: 新私的独占禁止法第二条第九項第四号 → 私的独占の禁止及び公正取引の確保に関する法律 第二条第九項第四号 (Article 2, paragraph (9), item (iv)), art-2/par-9/item-4 — https://japanlaw.org/en/antimonopoly-act/art-2/par-9/item-4

## Cited by

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

- 私的独占の禁止及び公正取引の確保に関する法律 附則第五条第一項 — https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-5/par-1
- 私的独占の禁止及び公正取引の確保に関する法律 附則第十九条第一項（政令への委任） — https://japanlaw.org/en/antimonopoly-act/suppl-4211-51/art-19/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 私的独占の禁止及び公正取引の確保に関する法律 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/322AC0000000054/20260521_505AC0000000063), retrieved 2026-11-06
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Prohibition of Private Monopolization and Maintenance of Fair Trade — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/5212/tb), retrieved 2026-11-06
- claude-sonnet-5-5 — Machine translation, batch antimonopoly-act-20261106T060022-014, translated 2026-11-06
- claude-sonnet-5-5, corrected on review by claude-opus-5-5 — Machine translation corrected on review, batch antimonopoly-act-20261106T060022-014, translated 2026-11-06
- This site's parser, version 225 — 私的独占の禁止及び公正取引の確保に関する法律 — structure, counts, cross-references and defined terms, computed 2026-11-06
