# 不正競争防止法 / Unfair Competition Prevention Act — 附　則 (Supplementary Provisions)

- 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: 附　則 (Supplementary Provisions) — address `suppl-4271-54`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/405AC0000000047/suppl-4271-54
- 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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## 附　則 平成二七年七月一〇日法律第五四号
<sup>suppl-4271-54 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-4271-54/art-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-1</sup>

**第一項**  この法律は、公布の日から起算して六月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、第十五条の改正規定は、公布の日から施行する。
<sup>suppl-4271-54/art-1/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-1/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-1/par-1</sup>
This Act comes into effect as of the day specified by Cabinet Order within a period not exceeding six months from the date of promulgation; provided, however, that the provision amending Article 15 comes into effect as of the date of promulgation.
<sup>machine translation, not official</sup>

### 第二条（経過措置） — Transitional Measures
<sup>caption: machine translation, not official</sup>
<sup>suppl-4271-54/art-2 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-2 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-2</sup>

**第一項**  この法律による改正後の不正競争防止法第五条の二の規定は、この法律の施行前にこの法律による改正前の不正競争防止法（以下「旧法」という。）第二条第一項第四号、第五号又は第八号に規定する行為（旧法第二条第六項に規定する営業秘密を取得する行為に限る。）があった場合における当該営業秘密を取得する行為をした者については、適用しない。
<sup>suppl-4271-54/art-2/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-2/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-2/par-1</sup>
The provisions of Article 5-2 of the Unfair Competition Prevention Act as amended by this Act do not apply to a person who has committed the act of acquiring that trade secret in the case where, before this Act comes into effect, there was an act prescribed in Article 2, paragraph (1), item (iv), (v) or (viii) of the Unfair Competition Prevention Act prior to the amendment by this Act (hereinafter referred to as the "former Act") (limited to an act of acquiring a trade secret prescribed in Article 2, paragraph (6) of the former Act).
<sup>machine translation, not official</sup>

### 第三条
<sup>suppl-4271-54/art-3 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-3 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-3</sup>

**第一項**  旧法第三条第一項の規定による侵害の停止又は予防を請求する権利の旧法第十五条後段に規定する期間がこの法律の施行の際既に経過していた場合については、なお従前の例による。
<sup>suppl-4271-54/art-3/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-3/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-3/par-1</sup>
In the case where the period prescribed in the latter part of Article 15 of the former Act for the right to claim the suspension or prevention of infringement under Article 3, paragraph (1) of the former Act had already elapsed at the time this Act comes into effect, the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

### 第四条（罰則の適用に関する経過措置） — Transitional Measures Concerning the Application of Penal Provisions
<sup>caption: machine translation, not official</sup>
<sup>suppl-4271-54/art-4 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-4 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-4</sup>

**第一項**  この法律の施行前にした行為に対する罰則の適用については、なお従前の例による。
<sup>suppl-4271-54/art-4/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-4/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-4/par-1</sup>
With regard to the application of penal provisions to acts committed before this Act comes into effect, the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

### 第五条（政令への委任） — Delegation to Cabinet Order
<sup>caption: machine translation, not official</sup>
<sup>suppl-4271-54/art-5 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-5 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-5</sup>

**第一項**  前三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（罰則に関する経過措置を含む。）は、政令で定める。
<sup>suppl-4271-54/art-5/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-5/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-5/par-1</sup>
Beyond what is provided for in the preceding three Articles, the transitional measures necessary in connection with the enforcement of this Act (including transitional measures concerning penal provisions) are specified by Cabinet Order.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4271-54/art-2/par-1: 不正競争防止法第五条の二 → 不正競争防止法 第五条の二 (Article 5-2), art-5-2 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-5-2 · https://japanlaw.org/l/405AC0000000047/art-5-2
- suppl-4271-54/art-5/par-1: 前三条 → 不正競争防止法 附則第二条 (Supplementary Provisions, Article 2), suppl-4271-54/art-2 — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-2 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-2
- suppl-4271-54/art-5/par-1: 前三条 → 不正競争防止法 附則第三条 (Supplementary Provisions, Article 3), suppl-4271-54/art-3 — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-3 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-3
- suppl-4271-54/art-5/par-1: 前三条 → 不正競争防止法 附則第四条 (Supplementary Provisions, Article 4), suppl-4271-54/art-4 — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-4 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-4

## Cited by

1 provision cites this one. No official source publishes this direction.

- 不正競争防止法 附則第五条第一項（政令への委任） — https://japanlaw.org/ja/unfair-competition-prevention-act/suppl-4271-54/art-5/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-4271-54/art-5/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
- claude-sonnet-5-5 — Machine translation, batch unfair-competition-prevention-act-20261011T031431-003, translated 2026-10-11
- claude-sonnet-5-5 — Machine translation, batch unfair-competition-prevention-act-20261011T031431-004, translated 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
