# 道路交通法 / Road Traffic Act — 第二十三条 (Supplementary Provisions, Article 23)

- 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: 第二十三条 (Supplementary Provisions, Article 23)（罰則等に関する経過措置） — address `suppl-4161-90/art-23`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-23
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-23
- 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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### 第二十三条（罰則等に関する経過措置） — (Transitional Measures for Penal Provisions and Other Provisions)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>suppl-4161-90/art-23 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-23 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-23</sup>

**第一項**  第二条から第四条までの規定の施行前にした行為並びに附則第五条及び第二十一条第三項の規定によりなお従前の例によることとされる場合並びに附則第二十一条第二項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、それぞれなお従前の例による。
<sup>suppl-4161-90/art-23/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-23/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-23/par-1</sup>
Prior laws continue to govern the applicability of penal provisions to conduct in which a person engages before Articles 2 through 4 come into force as well as 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 5 and Article 21, paragraph (3) of the Supplementary Provisions or if prior laws remain in force pursuant to Article 21, paragraph (2) of the Supplementary Provisions.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- suppl-4161-90/art-23/par-1: 附則第五条 → 道路交通法 附則第五条 (Supplementary Provisions, Article 5), suppl-4161-90/art-5 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-5 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-5

## 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三号（施行期日） — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-3 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-3
- 道路交通法 附則第二十五条第一項（その他の経過措置の政令への委任） — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-25/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-25/par-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
