# 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-4171-77`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/road-traffic-act/suppl-4171-77
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4171-77
- 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 平成一七年六月二九日法律第七七号
<sup>suppl-4171-77 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77</sup>

### 第一条（施行期日） — (Effective Date)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4171-77/art-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-1</sup>

**第一項**  この法律は、平成十八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、それぞれ当該各号に定める日から施行する。
<sup>suppl-4171-77/art-1/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-1/par-1</sup>
This Act comes into force on April 1, 2006; 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**  第一条、第五条、第八条、第十一条、第十三条及び第十五条並びに附則第四条、第十五条、第二十二条、第二十三条第二項、第三十二条、第三十九条及び第五十六条の規定　公布の日
  <sup>suppl-4171-77/art-1/par-1/item-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-1/par-1/item-1</sup>
  Articles 1, 5, 8, 11, 13, and 15 of this Act, and Articles 4, 15, and 22, Article 23, paragraph (2), and Articles 32, 39, and 56 of the Supplementary Provisions:the day of promulgation.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

### 第五十五条（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-4171-77/art-55 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-55 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-55</sup>

**第一項**  この法律の施行前にした行為及び附則第九条の規定によりなお従前の例によることとされる場合におけるこの法律の施行後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-4171-77/art-55/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-55/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-55/par-1</sup>
Prior laws continue to govern the applicability of penal provisions to conduct in which a person engages before this Act comes into force, and to conduct in which a person engages after this Act comes into force if prior laws are to continue to govern that conduct pursuant to Article 9 of the Supplementary Provisions.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

### 第五十六条（その他の経過措置の政令への委任） — (Delegation of Other Transitional Measures to Cabinet Order)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4171-77/art-56 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-56 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-56</sup>

**第一項**  附則第三条から第二十七条まで、第三十六条及び第三十七条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-4171-77/art-56/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-56/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-56/par-1</sup>
Beyond as prescribed in Articles 3 through 27 of this Act, and Articles 36 and 37 of 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-4171-77/art-1/par-1/item-1: 第五十六条 → 道路交通法 附則第五十六条 (Supplementary Provisions, Article 56), suppl-4171-77/art-56 — https://japanlaw.org/ja/road-traffic-act/suppl-4171-77/art-56 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-56

## Cited by

1 provision cites 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-4171-77/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4171-77/art-1/par-1/item-1

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## Sources

- 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
- This site's parser, version 190 — 道路交通法 — structure, counts, cross-references and defined terms, computed 2026-10-13
