# 不正競争防止法 / Unfair Competition Prevention Act — 第三条 (Supplementary Provisions, Article 3)

- Law: 不正競争防止法 (Unfair Competition Prevention Act), 平成五年法律第四十七号
- English title "Unfair Competition Prevention 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: 第三条 (Supplementary Provisions, Article 3) — address `suppl-4051-47/art-3`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-3
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-3
- 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.

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### 第三条
<sup>suppl-4051-47/art-3 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-3 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-3</sup>

**第一項**  第三条、第四条本文及び第五条の規定は、この法律の施行前に開始した次に掲げる行為を継続する行為については、適用しない。
<sup>suppl-4051-47/art-3/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-3/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-3/par-1</sup>
The provisions of Article 3, the main clause of Article 4, and Article 5 do not apply to the continuation of any of the following acts that commenced before this Act came into effect:
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **一**  第二条第一項第二号に掲げる行為に該当するもの（同項第一号に掲げる行為に該当するものを除く。）
  <sup>suppl-4051-47/art-3/par-1/item-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-3/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-3/par-1/item-1</sup>
  an act that falls under the provisions of Article 2, paragraph (1), item (ii) (excluding an act that falls under item (i) of the same paragraph); or
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **二**  第二条第一項第二十号に掲げる行為のうち、役務若しくはその広告若しくは取引に用いる書類若しくは通信にその役務の質、内容、用途若しくは数量について誤認させるような表示をし、又はその表示をして役務を提供する行為に該当するもの
  <sup>suppl-4051-47/art-3/par-1/item-2 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-3/par-1/item-2 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-3/par-1/item-2</sup>
  among the acts stated in Article 2, paragraph (1), item (xx), the act of using an indication on services, in an advertisement for services, or in trade documents or communications related to services, in a way that is likely to mislead as to the quality, contents, purpose, or quantity of the services, or the act of providing services using the indication.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- suppl-4051-47/art-3/par-1: 第三条 → 不正競争防止法 第三条 (Article 3), art-3 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-3 · https://japanlaw.org/l/405AC0000000047/art-3
- suppl-4051-47/art-3/par-1: 第四条 → 不正競争防止法 第四条 (Article 4), art-4 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-4 · https://japanlaw.org/l/405AC0000000047/art-4
- suppl-4051-47/art-3/par-1: 第五条 → 不正競争防止法 第五条 (Article 5), art-5 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-5 · https://japanlaw.org/l/405AC0000000047/art-5
- suppl-4051-47/art-3/par-1/item-1: 第二条第一項第二号 → 不正競争防止法 第二条第一項第二号 (Article 2, paragraph (1), item (ii)), art-2/par-1/item-2 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-2/par-1/item-2 · https://japanlaw.org/l/405AC0000000047/art-2/par-1/item-2
- suppl-4051-47/art-3/par-1/item-1: 同項第一号 → 不正競争防止法 第二条第一項第一号 (Article 2, paragraph (1), item (i)), art-2/par-1/item-1 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-2/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-2/par-1/item-1

## Cited by

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

- 不正競争防止法 附則第十条第一項 — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-10/par-1
- 不正競争防止法 附則第十四条第一項（政令への委任） — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4051-47/art-14/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4051-47/art-14/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 不正競争防止法 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/405AC0000000047/20260521_507AC0000000039), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Unfair Competition Prevention Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4920/tb), retrieved 2026-10-11
- This site's parser, version 189 — 不正競争防止法 — structure, counts, cross-references and defined terms, computed 2026-10-11
