# 著作権法 / Copyright Act — 第四十二条 (Article 42)

- 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: 第四十二条 (Article 42)（立法又は行政の目的のための内部資料としての複製等） — address `art-42`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/copyright-act/art-42
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/art-42
- 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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### 第四十二条（立法又は行政の目的のための内部資料としての複製等） — Reproduction as Internal Materials for Legislative or Administrative Purposes; Related Matters
<sup>caption: machine translation, not official</sup>
<sup>art-42 · https://japanlaw.org/ja/copyright-act/art-42 · https://japanlaw.org/l/345AC0000000048/art-42</sup>

    **第一項**  著作物は、立法又は行政の目的のために内部資料として必要と認められる場合には、その必要と認められる限度において、複製し、又は当該内部資料を利用する者との間で公衆送信を行い、若しくは受信装置を用いて公に伝達することができる。ただし、当該著作物の種類及び用途並びにその複製の部数及びその複製、公衆送信又は伝達の態様に照らし著作権者の利益を不当に害することとなる場合は、この限りでない。
    <sup>art-42/par-1 · https://japanlaw.org/ja/copyright-act/art-42/par-1 · https://japanlaw.org/l/345AC0000000048/art-42/par-1</sup>
    It is permissible to reproduce a work or, with persons who use the internal materials, to make a public transmission of it or publicly communicate it through a receiver, if and to the extent that this is found to be necessary as internal materials for the purpose of legislation or administration; provided, however, that this does not apply if the action would unreasonably prejudice the interests of the copyright owner in light of the nature and purpose of the work, the number of copies that would be made, and the circumstances of its reproduction, public transmission, or communication.
    <sup>machine translation, not official</sup>

## Cited by

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

- 著作権法 第四十一条の二第二項（裁判手続等における複製等） — https://japanlaw.org/ja/copyright-act/art-41-2/par-2 · https://japanlaw.org/l/345AC0000000048/art-41-2/par-2
- 著作権法 第四十七条の六第一項第二号（翻訳、翻案等による利用） — https://japanlaw.org/ja/copyright-act/art-47-6/par-1/item-2 · https://japanlaw.org/l/345AC0000000048/art-47-6/par-1/item-2
- 著作権法 第四十七条の七第一項（複製権の制限により作成された複製物の譲渡） — https://japanlaw.org/ja/copyright-act/art-47-7/par-1 · https://japanlaw.org/l/345AC0000000048/art-47-7/par-1
- 著作権法 第四十八条第一項第一号（出所の明示） — https://japanlaw.org/ja/copyright-act/art-48/par-1/item-1 · https://japanlaw.org/l/345AC0000000048/art-48/par-1/item-1
- 著作権法 第四十八条第一項第三号（出所の明示） — https://japanlaw.org/ja/copyright-act/art-48/par-1/item-3 · https://japanlaw.org/l/345AC0000000048/art-48/par-1/item-3
- 著作権法 第四十九条第一項第一号（複製物の目的外使用等） — https://japanlaw.org/ja/copyright-act/art-49/par-1/item-1 · https://japanlaw.org/l/345AC0000000048/art-49/par-1/item-1
- 著作権法 第四十九条第二項第一号（複製物の目的外使用等） — https://japanlaw.org/ja/copyright-act/art-49/par-2/item-1 · https://japanlaw.org/l/345AC0000000048/art-49/par-2/item-1
- 著作権法 第八十六条第一項（出版権の制限） — https://japanlaw.org/ja/copyright-act/art-86/par-1 · https://japanlaw.org/l/345AC0000000048/art-86/par-1
- 著作権法 第八十六条第二項第二号（出版権の制限） — https://japanlaw.org/ja/copyright-act/art-86/par-2/item-2 · https://japanlaw.org/l/345AC0000000048/art-86/par-2/item-2
- 著作権法 第八十六条第三項（出版権の制限） — https://japanlaw.org/ja/copyright-act/art-86/par-3 · https://japanlaw.org/l/345AC0000000048/art-86/par-3
- 著作権法 第百二条第一項（著作隣接権の制限） — https://japanlaw.org/ja/copyright-act/art-102/par-1 · https://japanlaw.org/l/345AC0000000048/art-102/par-1
- 著作権法 第百二条第二項（著作隣接権の制限） — https://japanlaw.org/ja/copyright-act/art-102/par-2 · https://japanlaw.org/l/345AC0000000048/art-102/par-2
- 著作権法 第百二条第九項第一号（著作隣接権の制限） — https://japanlaw.org/ja/copyright-act/art-102/par-9/item-1 · https://japanlaw.org/l/345AC0000000048/art-102/par-9/item-1
- 著作権法 附則第六項 — https://japanlaw.org/ja/copyright-act/suppl-4111-77/par-6 · https://japanlaw.org/l/345AC0000000048/suppl-4111-77/par-6

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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, corrected on review by claude-opus-5-5 — Machine translation corrected on review, batch copyright-act-20261019T151240-001, translated 2026-10-20
- claude-sonnet-5-5 — Machine translation, batch copyright-act-20261019T155604-001, 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