# 労働基準法施行規則 / Ordinance for Enforcement of the Labor Standards Act — 第四条 (Supplementary Provisions, Article 4)
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- Law: 労働基準法施行規則 (Ordinance for Enforcement of the Labor Standards Act), 昭和二十二年厚生省令第二十三号
- English title "Ordinance for Enforcement of the Labor Standards Act": Ministry of Justice translation
- Kind: MinisterialOrdinance — 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: 第四条 (Supplementary Provisions, Article 4) — address `suppl-4109-45/art-4`
- Text in force since: 2026-04-01
- URL (the page that opens at this provision): https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4
- Every provision below carries its address and both URLs on the line under it.
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### 第四条
suppl-4109-45/art-4 · https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4
**第一項** 雇入れの日から起算して六箇月を超えて継続勤務する日（次項及び次条において「六箇月経過日」という。）から起算した継続勤務年数が四年から八年までのいずれかの年数に達する日の翌日が平成十一年四月一日から平成十二年三月三十一日までの間にある労働者であって一週間の所定労働時間が三十時間未満のものに係る労働基準法（以下「法」という。）第三十九条第三項の通常の労働者の一週間の所定労働日数として命令で定める日数と当該労働者の一週間の所定労働日数又は一週間当たりの平均所定労働日数との比率を考慮して命令で定める日数は、この省令による改正後の労働基準法施行規則（次項及び第六条第一項において「新規則」という。）第二十四条の三第三項の規定にかかわらず、同日までの間は、法第三十九条第三項第一号に掲げる労働者にあっては次の表の上欄の週所定労働日数の区分に応じ、同項第二号に掲げる労働者にあっては同表の中欄の一年間の所定労働日数の区分に応じて、それぞれ同表の下欄に雇入れの日から起算した継続勤務期間（次項及び第六条において「継続勤務期間」という。）の区分ごとに定める日数とする。
週所定労働日数 一年間の所定労働日数 継続勤務期間
四年六箇月 五年六箇月 六年六箇月 七年六箇月 八年六箇月
四日 百六十九日から二百十六日まで 十一日 十二日 十二日 十三日 十四日
三日 百二十一日から百六十八日まで 八日 九日 九日 十日 十日
二日 七十三日から百二十日まで 五日 六日 六日 六日 七日
一日 四十八日から七十二日まで 二日 三日 三日 三日 三日
suppl-4109-45/art-4/par-1 · https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4/par-1 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4/par-1
With respect to a worker for whom the day following the day on which the number of years of continuous service counted from the day on which the worker has been in continuous service for more than six months counted from the day of hiring (referred to as the "six-month mark" in the following paragraph and the following Article) reaches any number of years from four to eight falls within the period from April 1, 1999 to March 31, 2000, and whose prescribed working hours per week are less than 30 hours, the number of days specified by order in consideration of the ratio between the number of days specified by order as the number of prescribed working days per week for an ordinary worker referred to in Article 39, paragraph (3) of the Labor Standards Act (hereinafter referred to as the "Act") and the number of prescribed working days per week or the average number of prescribed working days per week for the worker concerned is, notwithstanding the provisions of Article 24-3, paragraph (3) of the Ordinance for Enforcement of the Labor Standards Act as amended by this Ministerial Order (referred to as "the new Rules" in the following paragraph and Article 6, paragraph (1)), until that date, the number of days specified for each category of the period of continuous service counted from the day of hiring (referred to as the "period of continuous service" in the following paragraph and Article 6) in the right-hand column of the following table, in accordance with the category of the number of prescribed working days per week in the left-hand column of that table in the case of a worker set forth in Article 39, paragraph (3), item (i) of the Act, and in accordance with the category of the number of prescribed working days for one year in the middle column of that table in the case of a worker set forth in item (ii) of that paragraph.
Prescribed weekly working days Prescribed working days for one year Period of continuous service
4.5 years 5.5 years 6.5 years 7.5 years 8.5 years
4 days 169 to 216 days 11 days 12 days 12 days 13 days 14 days
3 days 121 to 168 days 8 days 9 days 9 days 10 days 10 days
2 days 73 to 120 days 5 days 6 days 6 days 6 days 7 days
1 day 48 to 72 days 2 days 3 days 3 days 3 days 3 days
machine translation, not official
**第二項** 六箇月経過日から起算した継続勤務年数が五年から七年までのいずれかの年数に達する日の翌日が平成十二年四月一日から平成十三年三月三十一日までの間にある労働者であって一週間の所定労働時間が三十時間未満のものに係る法第三十九条第三項の通常の労働者の一週間の所定労働日数として厚生労働省令で定める日数と当該労働者の一週間の所定労働日数又は一週間当たりの平均所定労働日数との比率を考慮して厚生労働省令で定める日数は、新規則第二十四条の三第三項の規定にかかわらず、平成十二年四月一日から平成十三年三月三十一日までの間は、法第三十九条第三項第一号に掲げる労働者にあっては次の表の上欄の週所定労働日数の区分に応じ、同項第二号に掲げる労働者にあっては同表の中欄の一年間の所定労働日数の区分に応じて、それぞれ同表の下欄に継続勤務期間の区分ごとに定める日数とする。
週所定労働日数 一年間の所定労働日数 継続勤務期間
五年六箇月 六年六箇月 七年六箇月
四日 百六十九日から二百十六日まで 十二日 十三日 十四日
三日 百二十一日から百六十八日まで 九日 十日 十日
二日 七十三日から百二十日まで 六日 六日 七日
一日 四十八日から七十二日まで 三日 三日 三日
suppl-4109-45/art-4/par-2 · https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4/par-2 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4/par-2
With respect to a worker for whom the day following the day on which the number of years of continuous service counted from the six-month mark reaches any number of years from five to seven falls within the period from April 1, 2000 to March 31, 2001, and whose prescribed working hours per week are less than 30 hours, the number of days specified by Order of the Ministry of Health, Labour and Welfare in consideration of the ratio between the number of days specified by Order of the Ministry of Health, Labour and Welfare as the number of prescribed working days per week for an ordinary worker referred to in Article 39, paragraph (3) of the Act and the number of prescribed working days per week or the average number of prescribed working days per week for the worker concerned is, notwithstanding the provisions of Article 24-3, paragraph (3) of the new Rules, during the period from April 1, 2000 to March 31, 2001, the number of days specified for each category of the period of continuous service in the right-hand column of the following table, in accordance with the category of the number of prescribed working days per week in the left-hand column of that table in the case of a worker set forth in Article 39, paragraph (3), item (i) of the Act, and in accordance with the category of the number of prescribed working days for one year in the middle column of that table in the case of a worker set forth in item (ii) of that paragraph.
Prescribed weekly working days Prescribed working days for one year Period of continuous service
5.5 years 6.5 years 7.5 years
4 days 169 to 216 days 12 days 13 days 14 days
3 days 121 to 168 days 9 days 10 days 10 days
2 days 73 to 120 days 6 days 6 days 7 days
1 day 48 to 72 days 3 days 3 days 3 days
machine translation, not official
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## Cites
- suppl-4109-45/art-4/par-1: 次項 → 労働基準法施行規則 附則第四条第二項 (Supplementary Provisions, Article 4, paragraph (2)), suppl-4109-45/art-4/par-2 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4/par-2 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4/par-2
- suppl-4109-45/art-4/par-1: 次条 → 労働基準法施行規則 附則第五条 (Supplementary Provisions, Article 5), suppl-4109-45/art-5 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-5 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-5
- suppl-4109-45/art-4/par-1: 第三十九条第三項 → 労働基準法 第三十九条第三項 (Article 39, paragraph (3)), art-39/par-3 — https://japanlaw.org/en/labor-standards-act/art-39/par-3 · https://japanlaw.org/l/322AC0000000049/art-39/par-3
- suppl-4109-45/art-4/par-1: 第二十四条の三第三項 → 労働基準法施行規則 第二十四条の三第三項 (Article 24-3, paragraph (3)), art-24-3/par-3 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/art-24-3/par-3 · https://japanlaw.org/l/322M40000100023/art-24-3/par-3
- suppl-4109-45/art-4/par-1: 法第三十九条第三項第一号 → 労働基準法 第三十九条第三項第一号 (Article 39, paragraph (3), item (i)), art-39/par-3/item-1 — https://japanlaw.org/en/labor-standards-act/art-39/par-3/item-1 · https://japanlaw.org/l/322AC0000000049/art-39/par-3/item-1
- suppl-4109-45/art-4/par-1: 同項第二号 → 労働基準法 第三十九条第三項第二号 (Article 39, paragraph (3), item (ii)), art-39/par-3/item-2 — https://japanlaw.org/en/labor-standards-act/art-39/par-3/item-2 · https://japanlaw.org/l/322AC0000000049/art-39/par-3/item-2
- suppl-4109-45/art-4/par-2: 法第三十九条第三項 → 労働基準法 第三十九条第三項 (Article 39, paragraph (3)), art-39/par-3 — https://japanlaw.org/en/labor-standards-act/art-39/par-3 · https://japanlaw.org/l/322AC0000000049/art-39/par-3
- suppl-4109-45/art-4/par-2: 新規則第二十四条の三第三項 → 労働基準法施行規則 第二十四条の三第三項 (Article 24-3, paragraph (3)), art-24-3/par-3 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/art-24-3/par-3 · https://japanlaw.org/l/322M40000100023/art-24-3/par-3
- suppl-4109-45/art-4/par-2: 法第三十九条第三項第一号 → 労働基準法 第三十九条第三項第一号 (Article 39, paragraph (3), item (i)), art-39/par-3/item-1 — https://japanlaw.org/en/labor-standards-act/art-39/par-3/item-1 · https://japanlaw.org/l/322AC0000000049/art-39/par-3/item-1
- suppl-4109-45/art-4/par-2: 同項第二号 → 労働基準法 第三十九条第三項第二号 (Article 39, paragraph (3), item (ii)), art-39/par-3/item-2 — https://japanlaw.org/en/labor-standards-act/art-39/par-3/item-2 · https://japanlaw.org/l/322AC0000000049/art-39/par-3/item-2
## Cited by
4 provisions cite this one. No official source publishes this direction.
- 労働基準法施行規則 附則第四条第一項 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-4/par-1 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-4/par-1
- 労働基準法施行規則 附則第五条第二項 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-5/par-2 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-5/par-2
- 労働基準法施行規則 附則第五条第三項 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-5/par-3 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-5/par-3
- 労働基準法施行規則 附則第六条第一項 — https://japanlaw.org/en/labor-standards-act-enforcement-ordinance/suppl-4109-45/art-6/par-1 · https://japanlaw.org/l/322M40000100023/suppl-4109-45/art-6/par-1
---
## Sources
- e-Gov 法令検索, Digital Agency (デジタル庁) — 労働基準法施行規則 — the text in force from 2026-04-01 (https://laws.e-gov.go.jp/law/322M40000100023/20260401_508M60000100057), retrieved 2026-09-10
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Ordinance for Enforcement of the Labor Standards Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/2605/tb), retrieved 2026-09-10
- claude-opus-5[1m] — Machine translation, batch labor-standards-act-enforcement-ordinance-20260918T205218-001, translated 2026-09-18
- This site's parser, version 222 — 労働基準法施行規則 — structure, counts, cross-references and defined terms, computed 2026-09-10