# 労働安全衛生法 / Industrial Safety and Health Act — 第二十条 (Article 20)

- Law: 労働安全衛生法 (Industrial Safety and Health Act), 昭和四十七年法律第五十七号
- English title "Industrial Safety and Health 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: 第二十条 (Article 20)（事業者の講ずべき措置等） — address `art-20`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/industrial-safety-and-health-act/art-20
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/347AC0000000057/art-20
- 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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### 第二十条（事業者の講ずべき措置等） — (Measures to Be Taken by Employers)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-20 · https://japanlaw.org/en/industrial-safety-and-health-act/art-20 · https://japanlaw.org/l/347AC0000000057/art-20</sup>

**第一項**  事業者は、次の危険を防止するため必要な措置を講じなければならない。
<sup>art-20/par-1 · https://japanlaw.org/en/industrial-safety-and-health-act/art-20/par-1 · https://japanlaw.org/l/347AC0000000057/art-20/par-1</sup>
An employer must take the necessary measures to prevent the following dangers:
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **一**  機械、器具その他の設備（以下「機械等」という。）による危険
  <sup>art-20/par-1/item-1 · https://japanlaw.org/en/industrial-safety-and-health-act/art-20/par-1/item-1 · https://japanlaw.org/l/347AC0000000057/art-20/par-1/item-1</sup>
  dangers due to machinery, tools, or any other such equipment (hereinafter referred to as "machinery or other such equipment");
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **二**  爆発性の物、発火性の物、引火性の物等による危険
  <sup>art-20/par-1/item-2 · https://japanlaw.org/en/industrial-safety-and-health-act/art-20/par-1/item-2 · https://japanlaw.org/l/347AC0000000057/art-20/par-1/item-2</sup>
  dangers due to substances of an explosive nature, substances of a combustible nature, and substances of an inflammable nature;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **三**  電気、熱その他のエネルギーによる危険
  <sup>art-20/par-1/item-3 · https://japanlaw.org/en/industrial-safety-and-health-act/art-20/par-1/item-3 · https://japanlaw.org/l/347AC0000000057/art-20/par-1/item-3</sup>
  dangers due to electricity, heat, and other energy.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

## Cited by

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

- 労働安全衛生法 第二十六条第一項 — https://japanlaw.org/en/industrial-safety-and-health-act/art-26/par-1 · https://japanlaw.org/l/347AC0000000057/art-26/par-1
- 労働安全衛生法 第二十七条第一項 — https://japanlaw.org/en/industrial-safety-and-health-act/art-27/par-1 · https://japanlaw.org/l/347AC0000000057/art-27/par-1
- 労働安全衛生法 第二十八条第一項（技術上の指針等の公表等） — https://japanlaw.org/en/industrial-safety-and-health-act/art-28/par-1 · https://japanlaw.org/l/347AC0000000057/art-28/par-1
- 労働安全衛生法 第九十八条第一項（使用停止命令等） — https://japanlaw.org/en/industrial-safety-and-health-act/art-98/par-1 · https://japanlaw.org/l/347AC0000000057/art-98/par-1
- 労働安全衛生法 第百十九条第一項第一号 — https://japanlaw.org/en/industrial-safety-and-health-act/art-119/par-1/item-1 · https://japanlaw.org/l/347AC0000000057/art-119/par-1/item-1
- 労働者派遣事業の適正な運営の確保及び派遣労働者の保護等に関する法律 第四十五条第三項（労働安全衛生法の適用に関する特例等） — https://japanlaw.org/en/worker-dispatch-act/art-45/par-3 · https://japanlaw.org/l/360AC0000000088/art-45/par-3

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 労働安全衛生法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/347AC0000000057/20261001_507AC0000000033), retrieved 2026-10-17
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Industrial Safety and Health Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3440/tb), retrieved 2026-10-17
- This site's parser, version 209 — 労働安全衛生法 — structure, counts, cross-references and defined terms, computed 2026-10-17