# 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-4161-90/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-4161-90/art-1 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/suppl-4161-90/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-4161-90/art-1 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1 **第一項** この法律の規定は、次の各号に掲げる区分に従い、当該各号に定める日から施行する。 suppl-4161-90/art-1/par-1 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1 For the categories set forth in each of the following items, the provisions of this Act come into force on the dates set forth therein: Ministry of Justice translation — Japanese Law Translation Database System **一** 第一条中附則第十六条第二項の改正規定、附則第十九条及び第二十条を削る改正規定、附則第二十一条を附則第十九条とする改正規定、附則第二十二条の改正規定、同条を附則第二十条とする改正規定、附則第二十三条第三号を削る改正規定並びに同条を附則第二十一条とする改正規定並びに附則第三条及び第二十五条の規定　公布の日 suppl-4161-90/art-1/par-1/item-1 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-1 the provisions in Article 1 amending Article 16, paragraph (2) of the Supplementary Provisions, amending provisions that delete Articles 19 and 20 of the Supplementary Provisions, amending provisions that change Article 21 of the Supplementary Provisions to Article 19 of the Supplementary Provisions, provisions amending Article 22 of the Supplementary Provisions, amending provisions that change that Article to Article 20 of the Supplementary Provisions, amending provisions that delete Article 23, item (iii) of the Supplementary Provisions, amending provisions that change that Article to Article 21, and the provisions of Articles 3 and 25 of the Supplementary Provisions:the day of promulgation; or Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "the provisions of in Article 1 amending Article 16, paragraph (2) of the Supplementary Provisions, amending provisions that delete Articles 19 and 20 of the Supplementary Provisions, amending provisions that change Article 21 of the Supplementary Provisions to Article 19 of the Supplementary Provisions, provisions amending Article 22 of the Supplementary Provisions, amending provisions that change that Article to Article 20 of the Supplementary Provisions, amending provisions that delete Article 23, item (iii) of the Supplementary Provisions, amending provisions that change that Article to Article 21, and provisions amending Articles 3 and 25 of the Supplementary Provisions:the day of promulgation; or" — https://www.japaneselawtranslation.go.jp/en/laws/view/2962/tb **二** 第一条の規定（前号に掲げる改正規定を除く。）並びに附則第四条及び第十九条の規定　公布の日から起算して六月を超えない範囲内において政令で定める日 suppl-4161-90/art-1/par-1/item-2 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-2 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-2 Article 1 (other than the amending provisions set forth in the preceding item), and Articles 4 and 19 of the Supplementary Provisions:within six months of promulgation, on the date that Cabinet Order prescribes; Ministry of Justice translation — Japanese Law Translation Database System **三** 第二条並びに次条、附則第二十三条及び第二十四条の規定　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 suppl-4161-90/art-1/par-1/item-3 · 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 Article 2 and the following Article, and Articles 23 and 24 of the Supplementary Provisions:within one year of promulgation, on the date that Cabinet Order prescribes; Ministry of Justice translation — Japanese Law Translation Database System **四** 第三条並びに附則第五条、第十六条及び第二十条から第二十二条までの規定　公布の日から起算して二年を超えない範囲内において政令で定める日 suppl-4161-90/art-1/par-1/item-4 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-4 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-4 Article 3, and Articles 5, 16, and 20 through 22 of the Supplementary Provisions:within two years of promulgation, on the date that Cabinet Order prescribes; Ministry of Justice translation — Japanese Law Translation Database System **五** 第四条並びに附則第六条から第十五条まで、第十七条及び第十八条の規定　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 suppl-4161-90/art-1/par-1/item-5 · https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-5 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-5 Article 4, and Articles 6 through 15 and Articles 17 and 18 of the Supplementary Provisions:within three years of promulgation, on the date that Cabinet Order prescribes. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - suppl-4161-90/art-1/par-1/item-1: 附則第三条 → 道路交通法 附則第三条 (Supplementary Provisions, Article 3), suppl-4161-90/art-3 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-3 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-3 - suppl-4161-90/art-1/par-1/item-1: 第二十五条 → 道路交通法 附則第二十五条 (Supplementary Provisions, Article 25), suppl-4161-90/art-25 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-25 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-25 - suppl-4161-90/art-1/par-1/item-2: 前号 → 道路交通法 附則第一条第一項第一号 (Supplementary Provisions, Article 1, paragraph (1), item (i)), suppl-4161-90/art-1/par-1/item-1 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-1 - suppl-4161-90/art-1/par-1/item-2: 附則第四条 → 道路交通法 附則第四条 (Supplementary Provisions, Article 4), suppl-4161-90/art-4 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-4 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-4 - suppl-4161-90/art-1/par-1/item-3: 次条 → 道路交通法 附則第二条 (Supplementary Provisions, Article 2), suppl-4161-90/art-2 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-2 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-2 - suppl-4161-90/art-1/par-1/item-3: 附則第二十三条 → 道路交通法 附則第二十三条 (Supplementary Provisions, Article 23), 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 - suppl-4161-90/art-1/par-1/item-3: 第二十四条 → 道路交通法 附則第二十四条 (Supplementary Provisions, Article 24), suppl-4161-90/art-24 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-24 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-24 - suppl-4161-90/art-1/par-1/item-4: 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 - suppl-4161-90/art-1/par-1/item-5: 附則第六条から第十五条まで → 道路交通法 附則第六条 (Supplementary Provisions, Article 6), suppl-4161-90/art-6 — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-6 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-6 ## Cited by 3 provisions cite this one. No official source publishes this direction. - 道路交通法 附則第一条第一項第二号（施行期日） — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-1/par-1/item-2 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-1/par-1/item-2 - 道路交通法 附則第四条第一項（保管車両等に関する経過措置） — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-4/par-1 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-4/par-1 - 道路交通法 附則第四条第二項（保管車両等に関する経過措置） — https://japanlaw.org/en/road-traffic-act/suppl-4161-90/art-4/par-2 · https://japanlaw.org/l/335AC0000000105/suppl-4161-90/art-4/par-2 --- ## Sources - claude-opus-5-5 — Slips in the Ministry of Justice's English of the Road Traffic Act, corrected, written 2026-10-13 - 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 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Road Traffic Act (道路交通法), Supplementary Provisions, Article 1, paragraph (1), item (i) — the Ministry of Justice's English as printed (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