# 少年法 / Juveniles Act — 附　則 (Supplementary Provisions)

This is the Markdown twin of https://japanlaw.org/en/juvenile-act/suppl-3261-59. 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: 少年法 (Juveniles Act), 昭和二十三年法律第百六十八号
- English title "Juveniles 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: 附　則 (Supplementary Provisions) — address `suppl-3261-59`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/juvenile-act/suppl-3261-59
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000168/suppl-3261-59
- 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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## 附　則 昭和二六年三月三〇日法律第五九号
<sup>suppl-3261-59 · https://japanlaw.org/en/juvenile-act/suppl-3261-59 · https://japanlaw.org/l/323AC0000000168/suppl-3261-59</sup>

**第一項**  この法律のうち、裁判所法第六十五条の二及び国家公務員法第二条の改正規定は昭和二十七年一月一日から、その他の規定は昭和二十六年四月一日から施行する。
<sup>suppl-3261-59/par-1 · https://japanlaw.org/en/juvenile-act/suppl-3261-59/par-1 · https://japanlaw.org/l/323AC0000000168/suppl-3261-59/par-1</sup>
Of this Act, the provisions amending Article 65-2 of the Courts Act and Article 2 of the National Public Service Act come into effect on January 1, 1952, and the other provisions come into effect on April 1, 1951.
<sup>machine translation, not official</sup>

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 少年法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/323AC0000000168/20260624_508AC0000000046), retrieved 2026-11-02
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Juveniles Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4827/tb), retrieved 2026-11-02
- claude-sonnet-5-5 — Machine translation, batch juvenile-act-20261102T172711-003, translated 2026-11-03
- This site's parser, version 220 — 少年法 — structure, counts, cross-references and defined terms, computed 2026-11-02