# 道路交通法 / Road Traffic Act — 第一条 (Supplementary Provisions, Article 1) - 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: 第一条 (Supplementary Provisions, Article 1)（施行期日） — address `suppl-4131-51/art-1` - Text in force since: 2026-07-21 - URL (the page that opens at this provision): https://japanlaw.org/ja/road-traffic-act/suppl-4131-51/art-1 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4131-51/art-1 - 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. --- ### 第一条（施行期日） — (Effective Date) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-4131-51/art-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4131-51/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-4131-51/art-1 **第一項** この法律は、公布の日から起算して一年を超えない範囲内において政令で定める日から施行する。ただし、第八十五条に一項を加える改正規定、第八十六条に二項を加える改正規定、第八十七条第四項の次に一項を加える改正規定及び第百七条の二の改正規定（「、又は」を「若しくは」に改め、「運転する場合」の下に「、又は代行運転普通自動車を運転する場合」を加える部分に限る。）は、公布の日から起算して三年を超えない範囲内において政令で定める日から施行する。 suppl-4131-51/art-1/par-1 · https://japanlaw.org/ja/road-traffic-act/suppl-4131-51/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4131-51/art-1/par-1 This Act comes into effect as of the date specified by Cabinet Order within a period not exceeding one year from the date of promulgation; provided, however, that the provision adding one paragraph to Article 85 of the Road Traffic Act, the provision adding two paragraphs to Article 86 of the Road Traffic Act, the provision adding one paragraph after Article 87, paragraph (4) of the Road Traffic Act, and the provision amending Article 107-2 of the Road Traffic Act (limited to the part replacing "、又は" (, or) with "若しくは" (or, joining a smaller group of alternatives) and adding ", or in the case of driving a standard motor vehicle that is to be driven by a professional designated driver" after "in the case of driving") come into effect as of the date specified by Cabinet Order within a period not exceeding three years from the date of promulgation. machine translation, not official --- ## 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-20261013T074321-018, 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