# 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-4141-98`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/en/road-traffic-act/suppl-4141-98
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4141-98
- 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 平成一四年七月三一日法律第九八号
<sup>suppl-4141-98 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98</sup>

### 第一条（施行期日） — (Effective Date)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4141-98/art-1 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-1</sup>

**第一項**  この法律は、公社法の施行の日から施行する。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-4141-98/art-1/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-1/par-1</sup>
This Act comes into force on the date of enforcement of the Public Corporations Act; 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**  第一章第一節（別表第一から別表第四までを含む。）並びに附則第二十八条第二項、第三十三条第二項及び第三項並びに第三十九条の規定　公布の日
  <sup>suppl-4141-98/art-1/par-1/item-1 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-1/par-1/item-1</sup>
  Section 1 of Chapter I (including Schedules I through IV), and Article 28, paragraph (2), Article 33, paragraphs (2) and (3), and Article 39 of the Supplementary Provisions:the day of promulgation.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

### 第三十八条（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-4141-98/art-38 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-38 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-38</sup>

**第一項**  施行日前にした行為並びにこの法律の規定によりなお従前の例によることとされる場合及びこの附則の規定によりなおその効力を有することとされる場合における施行日以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-4141-98/art-38/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-38/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-38/par-1</sup>
Prior laws continue to govern the applicability of penal provisions to conduct in which a person engages before the effective date, as well as continuing to govern conduct in which a person engages after the effective date if prior laws continue to govern pursuant to this Act or if prior laws remain in force pursuant to these Supplementary Provisions.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

### 第三十九条（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-4141-98/art-39 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-39 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-39</sup>

**第一項**  この法律に規定するもののほか、公社法及び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-4141-98/art-39/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-39/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-39/par-1</sup>
Beyond as prescribed in this Act, Cabinet Order provides for the necessary transitional measures to bring the Public Corporations Act and 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-4141-98/art-1/par-1/item-1: 第三十九条 → 道路交通法 附則第三十九条 (Supplementary Provisions, Article 39), suppl-4141-98/art-39 — https://japanlaw.org/en/road-traffic-act/suppl-4141-98/art-39 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/art-39

## 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/en/road-traffic-act/suppl-4141-98/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4141-98/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
