# 著作権法 / Copyright Act — 第一条 (Supplementary Provisions, Article 1)

- Law: 著作権法 (Copyright Act), 昭和四十五年法律第四十八号
- English title "Copyright 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: 第一条 (Supplementary Provisions, Article 1)（施行期日） — address `suppl-5081-37/art-1`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/copyright-act/suppl-5081-37/art-1
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/suppl-5081-37/art-1
- 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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### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-37/art-1 · https://japanlaw.org/en/copyright-act/suppl-5081-37/art-1 · https://japanlaw.org/l/345AC0000000048/suppl-5081-37/art-1</sup>

**第一項**  この法律は、令和九年四月一日から施行する。ただし、附則第五条の規定は、公布の日から施行する。
<sup>suppl-5081-37/art-1/par-1 · https://japanlaw.org/en/copyright-act/suppl-5081-37/art-1/par-1 · https://japanlaw.org/l/345AC0000000048/suppl-5081-37/art-1/par-1</sup>
This Act comes into effect as of April 1, 2027; provided, however, that the provisions of Article 5 of the Supplementary Provisions come into effect as of the date of promulgation.
<sup>machine translation, not official</sup>

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## Cites
- suppl-5081-37/art-1/par-1: 附則第五条 → 著作権法 附則第五条 (Supplementary Provisions, Article 5), suppl-5081-37/art-5 — https://japanlaw.org/en/copyright-act/suppl-5081-37/art-5 · https://japanlaw.org/l/345AC0000000048/suppl-5081-37/art-5

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 著作権法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/345AC0000000048/20260624_508AC0000000048), retrieved 2026-10-19
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Copyright Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4207/tb), retrieved 2026-10-19
- claude-sonnet-5-5 — Machine translation, batch copyright-act-20261019T151240-012, translated 2026-10-20
- This site's parser, version 210 — 著作権法 — structure, counts, cross-references and defined terms, computed 2026-10-19