# 道路運送車両法 / Road Transport Vehicle Act — 第三十一条 (Article 31)

- Law: 道路運送車両法 (Road Transport Vehicle Act), 昭和二十六年法律第百八十五号
- English title "Road Transport Vehicle Act": Ministry of Justice translation database, which lists the title
- 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: 第三十一条 (Article 31)（打刻の塗まつ等の禁止） — address `art-31`
- Text in force since: 2026-04-01
- URL (the page that opens at this provision): https://japanlaw.org/en/road-transport-vehicle-act/art-31
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/326AC0000000185/art-31
- 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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### 第三十一条（打刻の塗まつ等の禁止） — Prohibition of Obliterating Stamping
<sup>caption: machine translation, not official</sup>
<sup>art-31 · https://japanlaw.org/en/road-transport-vehicle-act/art-31 · https://japanlaw.org/l/326AC0000000185/art-31</sup>

**第一項**  何人も、自動車の車台番号又は原動機の型式の打刻を塗まつし、その他車台番号又は原動機の型式の識別を困難にするような行為をしてはならない。但し、整備のため特に必要な場合その他やむを得ない場合において、国土交通大臣の許可を受けたとき、又は次条の規定による命令を受けたときは、この限りでない。
<sup>art-31/par-1 · https://japanlaw.org/en/road-transport-vehicle-act/art-31/par-1 · https://japanlaw.org/l/326AC0000000185/art-31/par-1</sup>
No person may obliterate the stamping of the chassis number or motor model of a motor vehicle, or otherwise act so as to make it difficult to identify the chassis number or motor model; provided, however, that this does not apply where, in a case of particular necessity for maintenance or other unavoidable circumstances, the person has obtained the permission of the Minister of Land, Infrastructure, Transport and Tourism or has received an order under the following Article.
<sup>machine translation, not official</sup>

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## Cites
- art-31/par-1: 次条 → 道路運送車両法 第三十二条 (Article 32), art-32 — https://japanlaw.org/en/road-transport-vehicle-act/art-32 · https://japanlaw.org/l/326AC0000000185/art-32

## Cited by

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

- 道路運送車両法 第四条第一項（登録の一般的効力） — https://japanlaw.org/en/road-transport-vehicle-act/art-4/par-1 · https://japanlaw.org/l/326AC0000000185/art-4/par-1
- 道路運送車両法 第百七条第一項第一号 — https://japanlaw.org/en/road-transport-vehicle-act/art-107/par-1/item-1 · https://japanlaw.org/l/326AC0000000185/art-107/par-1/item-1
- 道路運送車両法 第百七条第一項第二号 — https://japanlaw.org/en/road-transport-vehicle-act/art-107/par-1/item-2 · https://japanlaw.org/l/326AC0000000185/art-107/par-1/item-2

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 道路運送車両法 — the text in force from 2026-04-01 (https://laws.e-gov.go.jp/law/326AC0000000185/20260401_508AC0000000002), retrieved 2026-10-13
- Japanese Law Translation Database System, Ministry of Justice (法務省) — 道路運送車両法 — its English title as the Ministry of Justice's translation database lists it (https://www.japaneselawtranslation.go.jp/en/laws/view/529), retrieved 2026-09-18
- claude-sonnet-5-5 — Machine translation, batch road-transport-vehicle-act-20261013T120733-006, translated 2026-10-13
- This site's parser, version 189 — 道路運送車両法 — structure, counts, cross-references and defined terms, computed 2026-10-13
