# 道路交通法 / Road Traffic Act — 第三十条 (Article 30)

- 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: 第三十条 (Article 30)（追越しを禁止する場所） — address `art-30`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/en/road-traffic-act/art-30
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/art-30
- 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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### 第三十条（追越しを禁止する場所） — (Places Where Passing Is Prohibited)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-30 · https://japanlaw.org/en/road-traffic-act/art-30 · https://japanlaw.org/l/335AC0000000105/art-30</sup>

  **第一項**  車両は、道路標識等により追越しが禁止されている道路の部分及び次に掲げるその他の道路の部分においては、他の車両（特定小型原動機付自転車等を除く。）を追い越すため、進路を変更し、又は前車の側方を通過してはならない。
  <sup>art-30/par-1 · https://japanlaw.org/en/road-traffic-act/art-30/par-1 · https://japanlaw.org/l/335AC0000000105/art-30/par-1</sup>
  A vehicle must not change course or go past the side of a leading vehicle in order to pass another vehicle (other than a specified small motorized bicycle or light road vehicle) on a part of the road where passing is prohibited by road signs or markings or on any of the following other parts of the road:
  <sup>machine translation, not official</sup>

    **一**  道路の曲がり角付近、上り坂の頂上付近又は勾配の急な下り坂
    <sup>art-30/par-1/item-1 · https://japanlaw.org/en/road-traffic-act/art-30/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/art-30/par-1/item-1</sup>
    in the vicinity of a curve in the road, in the vicinity of the top of an upward slope, or on a steep downward slope;
    <sup>machine translation, not official</sup>

    **二**  トンネル（車両通行帯の設けられた道路以外の道路の部分に限る。）
    <sup>art-30/par-1/item-2 · https://japanlaw.org/en/road-traffic-act/art-30/par-1/item-2 · https://japanlaw.org/l/335AC0000000105/art-30/par-1/item-2</sup>
    in a tunnel (but only on a part of a road that does not have vehicle traffic lanes);
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **三**  交差点（当該車両が第三十六条第二項に規定する優先道路を通行している場合における当該優先道路にある交差点を除く。）、踏切、横断歩道又は自転車横断帯及びこれらの手前の側端から前に三十メートル以内の部分
    <sup>art-30/par-1/item-3 · https://japanlaw.org/en/road-traffic-act/art-30/par-1/item-3 · https://japanlaw.org/l/335AC0000000105/art-30/par-1/item-3</sup>
    at an intersection (other than at an intersection on a priority road as prescribed in Article 36, paragraph (2), if the vehicle is proceeding down the priority road), at a railroad crossing, at a pedestrian crossing, over a bicycle crossing lane or within the 30 meters leading up to any of the foregoing.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-30/par-1/item-3: 第三十六条第二項 → 道路交通法 第三十六条第二項 (Article 36, paragraph (2)), art-36/par-2 — https://japanlaw.org/en/road-traffic-act/art-36/par-2 · https://japanlaw.org/l/335AC0000000105/art-36/par-2

## Cited by

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

- 道路交通法 第三十八条第三項（横断歩道等における歩行者等の優先） — https://japanlaw.org/en/road-traffic-act/art-38/par-3 · https://japanlaw.org/l/335AC0000000105/art-38/par-3
- 道路交通法 第四十一条第一項（緊急自動車等の特例） — https://japanlaw.org/en/road-traffic-act/art-41/par-1 · https://japanlaw.org/l/335AC0000000105/art-41/par-1
- 道路交通法 第四十一条の二第四項（消防用車両の優先等） — https://japanlaw.org/en/road-traffic-act/art-41-2/par-4 · https://japanlaw.org/l/335AC0000000105/art-41-2/par-4
- 道路交通法 第百十条の二第四項（特定の交通の規制等の手続） — https://japanlaw.org/en/road-traffic-act/art-110-2/par-4 · https://japanlaw.org/l/335AC0000000105/art-110-2/par-4
- 道路交通法 第百十九条第一項第五号 — https://japanlaw.org/en/road-traffic-act/art-119/par-1/item-5 · https://japanlaw.org/l/335AC0000000105/art-119/par-1/item-5

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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
- claude-sonnet-5-5 — Machine translation, batch road-traffic-act-20261013T074321-003, translated 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
