# 道路交通法 / Road Traffic Act — 附　則 (Supplementary Provisions)

- Law: 道路交通法 (Road Traffic Act), 昭和三十五年法律第百五号
- English title "Road Traffic 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-4231-72`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/road-traffic-act/suppl-4231-72
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4231-72
- 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 平成二三年六月二二日法律第七二号
<sup>suppl-4231-72 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72</sup>

### 第一条（施行期日） — (Effective Date)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4231-72/art-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-1</sup>

**第一項**  この法律は、平成二十四年四月一日から施行する。ただし、次の各号に掲げる規定は、当該各号に定める日から施行する。
<sup>suppl-4231-72/art-1/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-1/par-1</sup>
This Act comes into force on April 1, 2014; provided, however, that the provisions set forth in the following items come into force on the dates prescribed therein:
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **一**  第二条（老人福祉法目次の改正規定、同法第四章の二を削る改正規定、同法第四章の三を第四章の二とする改正規定及び同法第四十条第一号の改正規定（「第二十八条の十二第一項若しくは」を削る部分に限る。）に限る。）、第四条、第六条及び第七条の規定並びに附則第九条、第十一条、第十五条、第二十二条、第四十一条、第四十七条（東日本大震災に対処するための特別の財政援助及び助成に関する法律（平成二十三年法律第四十号）附則第一条ただし書の改正規定及び同条各号を削る改正規定並びに同法附則第十四条の改正規定に限る。）及び第五十条から第五十二条までの規定　公布の日
  <sup>suppl-4231-72/art-1/par-1/item-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-1/par-1/item-1</sup>
  Article 2 (but only the provisions amending the table of contents of the Act on Social Welfare for the Elderly, amending provisions that delete Chapter IV-2 of that Act, amending provisions that rename Chapter IV-3 as Chapter IV-2 of that Act and provisions amending Article 40, item (i) of that Act (but only the part deleting "Article 28-12, paragraph (i) or")), Article 4, Article 6, and Article 7, as well as Article 9, Article 11, Article 15, Article 22, Article 41, and Article 47 of the Supplementary Provisions, (but only the provisions amending the proviso of Article 1, Supplementary Provisions of the Act on Special Fiscal Aid and Subsidies for Recovery from the Great East Japan Earthquake (Act No. 40 of 2011), amending provisions that delete the items of that Article, and the provisions amending Article 14 of Supplementary Provisions) and Article 50 through Article 52:the date of promulgation;
  <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "Article 2 (but only the provisions amending the table of contents of the Act on Social Welfare for the Elderly, amending provisions that delete Chapter IV-2 of that Act, amending provisions that rename Chapter IV-3 as Chapter IV-2 of that Act and provisions amending Article 40, item (i) of that Act (but only the part deleting "Article 28-12, paragraph (i) or"), Article 4, Article 6, and Article 7, as well as Article 9, Article 11, Article 15, Article 22, Article 41, and Article 47 of the Supplementary Provisions, (but only the provisions amending the proviso of Article 1, Supplementary Provisions of the Act on Special Fiscal Aid and Subsidies for Recovery from the Great East Japan Earthquake (Act No. 40 of 2011), amending provisions that delete the items of that Article, and the provisions amending Article 14 of Supplementary Provisions) and Article 50 through Article 52:the date of promulgation;" — https://www.japaneselawtranslation.go.jp/en/laws/view/2962/tb</sup>

### 第五十一条（罰則に関する経過措置） — (Transitional Measures for Penal Provisions)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4231-72/art-51 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-51 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-51</sup>

**第一項**  この法律（附則第一条第一号に掲げる規定にあっては、当該規定）の施行前にした行為に対する罰則の適用については、なお従前の例による。
<sup>suppl-4231-72/art-51/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-51/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-51/par-1</sup>
Prior laws continue to govern the applicability of penal provisions to conduct in which a person engages before this Act (or the provisions set forth in Article 1, item (i) of the Supplementary Provisions) comes into force.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

### 第五十二条（政令への委任） — (Delegation to Cabinet Order)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4231-72/art-52 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-52 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-52</sup>

**第一項**  この附則に定めるもののほか、この法律の施行に関し必要な経過措置（罰則に関する経過措置を含む。）は、政令で定める。
<sup>suppl-4231-72/art-52/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-52/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-52/par-1</sup>
Beyond as prescribed in the Supplementary Provisions, Cabinet Order provides for the necessary transitional measures to bring this Act into force (including transitional measures for penal provisions).
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- suppl-4231-72/art-1/par-1/item-1: 第五十条から第五十二条まで → 道路交通法 附則第五十一条 (Supplementary Provisions, Article 51), suppl-4231-72/art-51 — https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-51 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-51
- suppl-4231-72/art-1/par-1/item-1: 第五十条から第五十二条まで → 道路交通法 附則第五十二条 (Supplementary Provisions, Article 52), suppl-4231-72/art-52 — https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-52 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-52
- suppl-4231-72/art-51/par-1: 附則第一条第一号 → 道路交通法 附則第一条第一項第一号 (Supplementary Provisions, Article 1, paragraph (1), item (i)), suppl-4231-72/art-1/par-1/item-1 — https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-1/par-1/item-1

## Cited by

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

- 道路交通法 附則第一条第一項第一号（施行期日） — https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-1/par-1/item-1
- 道路交通法 附則第五十一条第一項（罰則に関する経過措置） — https://japanlaw.org/ja/road-traffic-act/suppl-4231-72/art-51/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4231-72/art-51/par-1

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## Sources

- claude-opus-5-5 — Slips in the Ministry of Justice's English of the Road Traffic Act, corrected, written 2026-10-13
- e-Gov 法令検索, Digital Agency (デジタル庁) — 道路交通法 — the text in force from 2026-07-21 (https://laws.e-gov.go.jp/law/335AC0000000105/20260721_508AC0000000052), retrieved 2026-10-13
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Road Traffic Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/2962/tb), retrieved 2026-10-13
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Road Traffic Act (道路交通法), Supplementary Provisions, Article 1, paragraph (1), item (i) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/2962/tb), retrieved 2026-10-13
- This site's parser, version 190 — 道路交通法 — structure, counts, cross-references and defined terms, computed 2026-10-13
