# 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 — 第十二条 (Supplementary Provisions, Article 12) This is the Markdown twin of https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12. 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: 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: 第十二条 (Supplementary Provisions, Article 12)（処分、手続等に関する経過措置） — address `suppl-5011-45/art-12` - Text in force since: 2026-05-21 - URL (the page that opens at this provision): https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12 - e-Gov law ID: 322AC0000000054 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page. - Every provision below carries its address and its URL 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. --- ### 第十二条（処分、手続等に関する経過措置） — Transitional Measures Concerning Dispositions, Procedures, etc. caption: machine translation, not official suppl-5011-45/art-12 · https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12 **第一項** この法律（附則第一条第二号に掲げる規定にあっては、当該規定。以下この条において同じ。）の施行前にこの法律による改正前の独占禁止法又はこれに基づく命令の規定によってした処分、手続その他の行為であって、この法律による改正後の独占禁止法又はこれに基づく命令の規定に相当の規定があるものは、この附則に別段の定めがあるものを除き、この法律による改正後の独占禁止法又はこれに基づく命令の相当の規定によってしたものとみなす。 suppl-5011-45/art-12/par-1 · https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12/par-1 Dispositions, procedures and other acts done before this Act (or, with regard to the provisions listed in Article 1, item (ii) of the Supplementary Provisions, those provisions; the same applies hereinafter in this Article) comes into effect, pursuant to the provisions of the Antimonopoly Act prior to its amendment by this Act or of orders based on it, for which there are corresponding provisions in the Antimonopoly Act as amended by this Act or orders based on it, are deemed, except as otherwise provided in these Supplementary Provisions, to have been done pursuant to the corresponding provisions of the Antimonopoly Act as amended by this Act or orders based on it. machine translation, not official --- ## Cites - suppl-5011-45/art-12/par-1: 附則第一条第二号 → 私的独占の禁止及び公正取引の確保に関する法律 附則第一条第一項第二号 (Supplementary Provisions, Article 1, paragraph (1), item (ii)), suppl-5011-45/art-1/par-1/item-2 — https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-1/par-1/item-2 - suppl-5011-45/art-12/par-1: この条 → 私的独占の禁止及び公正取引の確保に関する法律 附則第十二条 (Supplementary Provisions, Article 12), suppl-5011-45/art-12 — https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12 ## Cited by 3 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 附則第一条第一項第一号（施行期日） — https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-1/par-1/item-1 - 私的独占の禁止及び公正取引の確保に関する法律 附則第十二条第一項（処分、手続等に関する経過措置） — https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-12/par-1 - 私的独占の禁止及び公正取引の確保に関する法律 附則第十三条第一項（政令への委任） — https://japanlaw.org/ja/antimonopoly-act/suppl-5011-45/art-13/par-1 --- ## 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-20261106T060022-012, translated 2026-11-06 - claude-sonnet-5-5, corrected on review by claude-opus-5-5 — Machine translation corrected on review, batch antimonopoly-act-20261106T060022-018, 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