# 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-3461-98/art-1` - Text in force since: 2026-07-21 - URL (the page that opens at this provision): https://japanlaw.org/en/road-traffic-act/suppl-3461-98/art-1 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-3461-98/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-3461-98/art-1 · https://japanlaw.org/en/road-traffic-act/suppl-3461-98/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-3461-98/art-1 **第一項** この法律は、公布の日から起算して六月をこ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、第七十四条の二に第七項を加える改正規定、第九十七条から第九十九条までの改正規定、第百一条の二の次に一条を加える改正規定、第百八条を第百八条の三とし、同条の前に二条を加える改正規定（第百八条の二第一項第一号、第三号及び第四号に係る部分に限る。）及び第百十二条の改正規定は、昭和四十七年四月一日から施行する。 suppl-3461-98/art-1/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-3461-98/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-3461-98/art-1/par-1 This Act comes into effect on the date specified by Cabinet Order within a period not exceeding six months from the date of promulgation; provided, however, that the provision adding paragraph (7) to Article 74-2 of the Road Traffic Act, the provisions amending Articles 97 through 99 of the Road Traffic Act, the provision adding one Article after Article 101-2 of the Road Traffic Act, the provision making Article 108 of the Road Traffic Act into Article 108-3 and adding two Articles before that Article (limited to the portions pertaining to Article 108-2, paragraph (1), items (i), (iii) and (iv) of the Road Traffic Act), and the provision amending Article 112 of the Road Traffic Act come into effect on April 1, 1972. 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-20261013T074321-017, 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