# 労働安全衛生法 / Industrial Safety and Health Act — 第五十七条の四 (Article 57-4) - 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: 第五十七条の四 (Article 57-4)（化学物質の有害性の調査） — address `art-57-4` - 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-57-4 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/347AC0000000057/art-57-4 - 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. --- ### 第五十七条の四（化学物質の有害性の調査） — (Assessment of the potential for harm from Chemical Substances) caption: Ministry of Justice translation — Japanese Law Translation Database System art-57-4 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4 · https://japanlaw.org/l/347AC0000000057/art-57-4 **第一項** 化学物質による労働者の健康障害を防止するため、既存の化学物質として政令で定める化学物質（第三項の規定によりその名称が公表された化学物質を含む。）以外の化学物質（以下この条において「新規化学物質」という。）を製造し、又は輸入しようとする事業者は、あらかじめ、厚生労働省令で定めるところにより、厚生労働大臣の定める基準に従つて有害性の調査（当該新規化学物質が労働者の健康に与える影響についての調査をいう。以下この条において同じ。）を行い、当該新規化学物質の名称、有害性の調査の結果その他の事項を厚生労働大臣に届け出なければならない。ただし、次の各号のいずれかに該当するときその他政令で定める場合は、この限りでない。 art-57-4/par-1 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1 To prevent the impairment of workers' health by chemical substances, an employer that seeks to manufacture or import a chemical substance other than a chemical substance that is specified by Cabinet Order as an existing chemical substance (including a chemical substance whose name has been made public pursuant to the provisions of paragraph (3)) (such an other chemical substance is hereinafter in this Article referred to as a "new chemical substance"), must first undertake a assessment of the potential for harm as specified by Order of the Ministry of Health, Labour and Welfare (meaning an assessment of the influence of the new chemical substance on the health of workers hereinafter the same applies in this Article) and, pursuant to Order of the Ministry of Health, Labour and Welfare, file a notification of the name of the new chemical substance and the result of the assessment of the potential for harm and other particulars with the Minister of Health, Labour and Welfare; provided, however, that this does not apply if the situation falls under any of the following items or in a case provided by Cabinet Order: Ministry of Justice translation — Japanese Law Translation Database System **一** 当該新規化学物質に関し、厚生労働省令で定めるところにより、当該新規化学物質について予定されている製造又は取扱いの方法等からみて労働者が当該新規化学物質にさらされるおそれがない旨の厚生労働大臣の確認を受けたとき。 art-57-4/par-1/item-1 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1/item-1 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1/item-1 pursuant to Order of the Ministry of Health, Labour and Welfare, the employer has received confirmation from the Minister of Health, Labour and Welfare in respect of the new chemical substance indicating that things such as the manufacturing or handling method that is being contemplated for the new chemical substance has been reviewed and it is not likely that the workers will be exposed to the new chemical substance; Ministry of Justice translation — Japanese Law Translation Database System **二** 当該新規化学物質に関し、厚生労働省令で定めるところにより、既に得られている知見等に基づき厚生労働省令で定める有害性がない旨の厚生労働大臣の確認を受けたとき。 art-57-4/par-1/item-2 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1/item-2 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1/item-2 pursuant to Order of the Ministry of Health, Labour and Welfare, the employer has received confirmation from the Minister of Health, Labour and Welfare in respect of the new chemical substance, indicating that, based on things such as findings that have already been made, the new chemical substance does not have the toxicity prescribed by Order of the Ministry of Health, Labour and Welfare; Ministry of Justice translation — Japanese Law Translation Database System **三** 当該新規化学物質を試験研究のため製造し、又は輸入しようとするとき。 art-57-4/par-1/item-3 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1/item-3 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1/item-3 the employer seeks to manufacture or import the new chemical substance for the sake of research or studies; Ministry of Justice translation — Japanese Law Translation Database System **四** 当該新規化学物質が主として一般消費者の生活の用に供される製品（当該新規化学物質を含有する製品を含む。）として輸入される場合で、厚生労働省令で定めるとき。 art-57-4/par-1/item-4 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1/item-4 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1/item-4 the new chemical substance would be imported primarily as a product for ordinary use by general consumers (this includes a product containing the new chemical substance), and in the case specified by Order of the Ministry of Health, Labour and Welfare. Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "the new chemical substance would be imported primarily as a product for ordinary use by general consumers (this includes a product containing the new chemical substance), and in the case supecified by Order of the Ministry of Health, Labour and Welfare." — https://www.japaneselawtranslation.go.jp/en/laws/view/3440/tb **第二項** 有害性の調査を行つた事業者は、その結果に基づいて、当該新規化学物質による労働者の健康障害を防止するため必要な措置を速やかに講じなければならない。 art-57-4/par-2 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-2 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-2 An employer that has carried out a assessment of the potential for harm must promptly take the necessary measures based on the results of the investigation to prevent the impairment of workers' health by the relevant new chemical substance. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 厚生労働大臣は、第一項の規定による届出があつた場合（同項第二号の規定による確認をした場合を含む。）には、厚生労働省令で定めるところにより、当該新規化学物質の名称を公表するものとする。 art-57-4/par-3 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-3 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-3 Having received a notification for a new chemical substance under the provisions of paragraph (1) (or having made a confirmation under the provisions of item (ii) of that paragraph), the Minister of Health, Labour and Welfare must make public the name of the new chemical substance pursuant to Order of the Ministry of Health, Labour and Welfare. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 厚生労働大臣は、第一項の規定による届出があつた場合には、厚生労働省令で定めるところにより、有害性の調査の結果について学識経験者の意見を聴き、当該届出に係る化学物質による労働者の健康障害を防止するため必要があると認めるときは、届出をした事業者に対し、施設又は設備の設置又は整備、保護具の備付けその他の措置を講ずべきことを勧告することができる。 art-57-4/par-4 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-4 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-4 Having received a notification under the provisions of paragraph (1) and on finding, after hearing the opinions of persons with relevant knowledge and experience on the results of the toxicity assessment pursuant to Order of the Ministry of Health, Labour and Welfare, that it is necessary to do so in order to prevent the impairment of workers' health by the chemical substance to which the notification pertains, the Minister of Health, Labour and Welfare may issue a recommendation to the employer filing the notification to establish or streamline facilities or equipment, make available personal protective equipment, or take other measures. Ministry of Justice translation — Japanese Law Translation Database System **第五項** 前項の規定により有害性の調査の結果について意見を求められた学識経験者は、当該有害性の調査の結果に関して知り得た秘密を漏らしてはならない。ただし、労働者の健康障害を防止するためやむを得ないときは、この限りでない。 art-57-4/par-5 · https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-5 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-5 A person with relevant knowledge and experience who has been asked for an opinion on the results of an assessment of potential for harm pursuant to the provisions of the preceding paragraph must not divulge any secret learned in connection with the results of the toxicity assessment; provided, however, that this does not apply if the person is compelled to disclose this information for the purpose of preventing the impairment of workers' health. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-57-4/par-1: 第三項 → 労働安全衛生法 第五十七条の四第三項 (Article 57-4, paragraph (3)), art-57-4/par-3 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-3 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-3 - art-57-4/par-1: この条 → 労働安全衛生法 第五十七条の四 (Article 57-4), art-57-4 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4 · https://japanlaw.org/l/347AC0000000057/art-57-4 - art-57-4/par-3: 第一項 → 労働安全衛生法 第五十七条の四第一項 (Article 57-4, paragraph (1)), art-57-4/par-1 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1 - art-57-4/par-3: 同項第二号 → 労働安全衛生法 第五十七条の四第一項第二号 (Article 57-4, paragraph (1), item (ii)), art-57-4/par-1/item-2 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1/item-2 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1/item-2 - art-57-4/par-4: 第一項 → 労働安全衛生法 第五十七条の四第一項 (Article 57-4, paragraph (1)), art-57-4/par-1 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1 - art-57-4/par-5: 前項 → 労働安全衛生法 第五十七条の四第四項 (Article 57-4, paragraph (4)), art-57-4/par-4 — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-4 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-4 ## Cited by 10 provisions cite this one. No official source publishes this direction. - 労働安全衛生法 第二十八条第三項第一号（技術上の指針等の公表等） — https://japanlaw.org/en/industrial-safety-and-health-act/art-28/par-3/item-1 · https://japanlaw.org/l/347AC0000000057/art-28/par-3/item-1 - 労働安全衛生法 第五十七条の四第一項（化学物質の有害性の調査） — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-1 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-1 - 労働安全衛生法 第五十七条の四第三項（化学物質の有害性の調査） — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-3 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-3 - 労働安全衛生法 第五十七条の四第四項（化学物質の有害性の調査） — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-4 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-4 - 労働安全衛生法 第五十七条の四第五項（化学物質の有害性の調査） — https://japanlaw.org/en/industrial-safety-and-health-act/art-57-4/par-5 · https://japanlaw.org/l/347AC0000000057/art-57-4/par-5 - 労働安全衛生法 第五十八条第一項（国の援助等） — https://japanlaw.org/en/industrial-safety-and-health-act/art-58/par-1 · https://japanlaw.org/l/347AC0000000057/art-58/par-1 - 労働安全衛生法 第九十三条第三項（産業安全専門官及び労働衛生専門官） — https://japanlaw.org/en/industrial-safety-and-health-act/art-93/par-3 · https://japanlaw.org/l/347AC0000000057/art-93/par-3 - 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 - 労働安全衛生法 第百二十条第一項第一号 — https://japanlaw.org/en/industrial-safety-and-health-act/art-120/par-1/item-1 · https://japanlaw.org/l/347AC0000000057/art-120/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 --- ## Sources - claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-10-18 - 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 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Industrial Safety and Health Act (労働安全衛生法), Article 57-4, paragraph (1), item (iv) — the Ministry of Justice's English as printed (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