# 労働基準法 / Labor Standards Act — 第四条 (Supplementary Provisions, Article 4)

This is the Markdown twin of https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

- Law: 労働基準法 (Labor Standards Act), 昭和二十二年法律第四十九号
- English title "Labor Standards 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: 第四条 (Supplementary Provisions, Article 4)（年次有給休暇に関する経過措置） — address `suppl-4301-71/art-4`
- Text in force since: 2026-07-17
- URL (the page that opens at this provision): https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/322AC0000000049/suppl-4301-71/art-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.

---

### 第四条（年次有給休暇に関する経過措置） — Transitional Measures Concerning Annual Paid Leave
<sup>caption: machine translation, not official</sup>
<sup>suppl-4301-71/art-4 · https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4 · https://japanlaw.org/l/322AC0000000049/suppl-4301-71/art-4</sup>

**第一項**  この法律の施行の際四月一日以外の日が基準日（継続勤務した期間を労働基準法第三十九条第二項に規定する六箇月経過日から一年ごとに区分した各期間（最後に一年未満の期間を生じたときは、当該期間をいう。以下この条において同じ。）の初日をいい、同法第三十九条第一項から第三項までの規定による有給休暇を当該有給休暇に係る当該各期間の初日より前の日から与えることとした場合はその日をいう。以下この条において同じ。）である労働者に係る有給休暇については、この法律の施行の日後の最初の基準日の前日までの間は、新労基法第三十九条第七項の規定にかかわらず、なお従前の例による。
<sup>suppl-4301-71/art-4/par-1 · https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4/par-1 · https://japanlaw.org/l/322AC0000000049/suppl-4301-71/art-4/par-1</sup>
With regard to paid leave pertaining to a worker for whom, at the time this Act comes into effect, a day other than April 1 is the base date (meaning the first day of each sub-period (or, if a final period of less than one year arises, meaning that period; the same applies hereinafter in this Article) into which the period of continuous employment is divided in one-year units beginning at the six-months elapsed date prescribed in Article 39, paragraph (2) of the Labor Standards Act, or, in the case where paid leave under the provisions of Article 39, paragraphs (1) through (3) of that Act is to be granted from a day earlier than the first day of the sub-period to which that paid leave pertains, meaning that day; the same applies hereinafter in this Article), notwithstanding the provisions of Article 39, paragraph (7) of the New Labor Standards Act, the provisions then in force continue to govern until the day before the first base date after the date on which this Act comes into effect.
<sup>machine translation, not official</sup>

---

## Cites
- suppl-4301-71/art-4/par-1: 労働基準法第三十九条第二項 → 労働基準法 第三十九条第二項 (Article 39, paragraph (2)), art-39/par-2 — https://japanlaw.org/ja/labor-standards-act/art-39/par-2 · https://japanlaw.org/l/322AC0000000049/art-39/par-2
- suppl-4301-71/art-4/par-1: この条 → 労働基準法 附則第四条 (Supplementary Provisions, Article 4), suppl-4301-71/art-4 — https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4 · https://japanlaw.org/l/322AC0000000049/suppl-4301-71/art-4
- suppl-4301-71/art-4/par-1: 同法第三十九条第一項から第三項まで → 労働基準法 第三十九条第一項 (Article 39, paragraph (1)), art-39/par-1 — https://japanlaw.org/ja/labor-standards-act/art-39/par-1 · https://japanlaw.org/l/322AC0000000049/art-39/par-1
- suppl-4301-71/art-4/par-1: 同法第三十九条第一項から第三項まで → 労働基準法 第三十九条第三項 (Article 39, paragraph (3)), art-39/par-3 — https://japanlaw.org/ja/labor-standards-act/art-39/par-3 · https://japanlaw.org/l/322AC0000000049/art-39/par-3
- suppl-4301-71/art-4/par-1: 新労基法第三十九条第七項 → 労働基準法 第三十九条第七項 (Article 39, paragraph (7)), art-39/par-7 — https://japanlaw.org/ja/labor-standards-act/art-39/par-7 · https://japanlaw.org/l/322AC0000000049/art-39/par-7

## Cited by

1 provision cites this one. No official source publishes this direction.

- 労働基準法 附則第四条第一項（年次有給休暇に関する経過措置） — https://japanlaw.org/ja/labor-standards-act/suppl-4301-71/art-4/par-1 · https://japanlaw.org/l/322AC0000000049/suppl-4301-71/art-4/par-1

---

## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 労働基準法 — the text in force from 2026-07-17 (https://laws.e-gov.go.jp/law/322AC0000000049/20260717_508AC0000000060), retrieved 2026-09-27
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Labor Standards Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4913/tb), retrieved 2026-09-27
- claude-opus-5[1m] — Machine translation, batch labor-standards-act-011, translated 2026-09-11
- claude-opus-5-5 — Machine translation, batch labor-standards-act-20260927T172149-001, translated 2026-09-28
- This site's parser, version 224 — 労働基準法 — structure, counts, cross-references and defined terms, computed 2026-09-27
