# 道路交通法 / Road Traffic Act — 第七十五条の四 (Article 75-4) - 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: 第七十五条の四 (Article 75-4)（最低速度） — address `art-75-4` - Text in force since: 2026-07-21 - URL (the page that opens at this provision): https://japanlaw.org/ja/road-traffic-act/art-75-4 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/art-75-4 - 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. --- ### 第七十五条の四（最低速度） — (Minimum Speed Limit) caption: Ministry of Justice translation — Japanese Law Translation Database System art-75-4 · https://japanlaw.org/ja/road-traffic-act/art-75-4 · https://japanlaw.org/l/335AC0000000105/art-75-4 **第一項** 自動車は、法令の規定によりその速度を減ずる場合及び危険を防止するためやむを得ない場合を除き、高速自動車国道の本線車道（政令で定めるものを除く。）においては、道路標識等により自動車の最低速度が指定されている区間にあつてはその最低速度に、その他の区間にあつては政令で定める最低速度に達しない速度で進行してはならない。 art-75-4/par-1 · https://japanlaw.org/ja/road-traffic-act/art-75-4/par-1 · https://japanlaw.org/l/335AC0000000105/art-75-4/par-1 On the main roadway of a national expressway (other than one that Cabinet Order prescribes), it is prohibited for a motor vehicle to travel at a speed below the posted minimum speed limit in a section of road where this is designated by road signs or markings or to travel at a speed below the minimum speed limit that Cabinet Order prescribes in any other section of road, unless the driver is decreasing the speed of the motor vehicle pursuant to laws and regulations or is compelled to drive below the minimum speed limit in order to prevent a hazard. Ministry of Justice translation — Japanese Law Translation Database System ## Cited by 6 provisions cite this one. No official source publishes this direction. - 道路交通法 第二十三条第一項（最低速度） — https://japanlaw.org/ja/road-traffic-act/art-23/par-1 · https://japanlaw.org/l/335AC0000000105/art-23/par-1 - 道路交通法 第七十五条の八の二第四項（重被牽引車を牽引する牽引自動車の通行区分） — https://japanlaw.org/ja/road-traffic-act/art-75-8-2/par-4 · https://japanlaw.org/l/335AC0000000105/art-75-8-2/par-4 - 道路交通法 第七十五条の九第二項（緊急自動車等の特例） — https://japanlaw.org/ja/road-traffic-act/art-75-9/par-2 · https://japanlaw.org/l/335AC0000000105/art-75-9/par-2 - 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/ja/road-traffic-act/art-110-2/par-4 · https://japanlaw.org/l/335AC0000000105/art-110-2/par-4 - 道路交通法 第百十七条の二の二第一項第八号ヌ — https://japanlaw.org/ja/road-traffic-act/art-117-2-2/par-1/item-8/sub-10 · https://japanlaw.org/l/335AC0000000105/art-117-2-2/par-1/item-8/sub-10 - 道路交通法 第百二十条第一項第十二号 — https://japanlaw.org/ja/road-traffic-act/art-120/par-1/item-12 · https://japanlaw.org/l/335AC0000000105/art-120/par-1/item-12 --- ## 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