Japan vs Vietnam Smoking Rules 2026: Why the Two Systems Are Not Comparable
Table of contents
What Vietnam prohibits
Vietnam's Law on Prevention and Control of Tobacco Harms (09/2012/QH13) lists the places where smoking is prohibited. Article 11 bans smoking indoors and across the whole premises of medical facilities, educational facilities, facilities dedicated to the care, upbringing, play and entertainment of children, and places with a high fire or explosion risk. It also bans smoking indoors at workplaces, colleges and universities, and public places, and makes cars, aircraft and trains entirely smoke-free. Article 12 allows a dedicated smoking area indoors only at airport isolation zones; bars, karaoke venues, discos, hotels and tourist accommodation; and on ships and railways. Separately, Resolution 173/2024/QH15 bans e-cigarettes and heated tobacco as product categories, including their use.
What Japan prohibits
Japan splits facilities into two types. Type-1 facilities — schools, hospitals, child welfare facilities and government offices — are smoke-free across the entire premises and may not install indoor smoking rooms at all. Type-2 facilities, which covers restaurants, offices, hotels and most other buildings used by the public, are smoke-free indoors by default; smoking is possible only inside a room that meets the legal requirements. Anyone under 20 is barred from entering a smoking area, even if they are not there to smoke, and facilities with smoking equipment must display the prescribed signage (source: MHLW https://jyudokitsuen.mhlw.go.jp/point/).
- Designated smoking room (喫煙専用室): smoking allowed, no food or drink.
- Heated-tobacco-only smoking room (加熱式たばこ専用喫煙室): heated tobacco only, food and drink allowed.
- Smoking-permitted room (喫煙可能室): smoking and dining allowed, but only at qualifying small eateries that already existed — a transitional measure.
- Smoking-purpose room (喫煙目的室): smoking allowed with food and drink except staple meals, only at smoking-purpose establishments.
- All four bar entry to anyone under 20 (source: https://jyudokitsuen.mhlw.go.jp/smoking_room/).
The outdoor layer that surprises visitors
On top of the nationwide indoor rules, each Japanese municipality sets its own ordinance on street smoking. Article 14(3) of the Local Autonomy Act caps ordinance fines at 50,000 yen (source: e-Gov https://laws.e-gov.go.jp/law/322AC0000000067), but in practice 1,000 to 2,000 yen is typical. Chiyoda City in Tokyo applies 2,000 yen across the whole ward except the Imperial Palace grounds, and covers heated tobacco as well as cigarettes (source: https://www.city.chiyoda.lg.jp/koho/machizukuri/sekatsu/jore/jore.html). Kyoto City collects 1,000 yen inside its designated enforcement zones (source: https://www.city.kyoto.lg.jp/bunshi/page/0000027498.html). A district-by-district breakdown is in our guide to street smoking fines by municipality, and what actually happens if you are stopped is covered in the enforcement process guide. To find a legal spot before you head out, use the MottoSuitai smoking area map.
Penalties on both sides
In Vietnam, Decree 90/2026/ND-CP, issued on 30 March 2026 and in force from 15 May 2026, has been reported by state media as setting a fine of 200,000 to 500,000 dong for smoking in a prohibited place and 3 to 5 million dong for using e-cigarettes or heated tobacco (source: Nhan Dan https://nhandan.vn/nghi-dinh-xu-phat-manh-tay-voi-cac-vi-pham-lien-quan-den-thuoc-la-sap-co-hieu-luc-post962064.html). Please confirm current figures with Vietnamese government sources. In Japan, street-smoking penalties are administrative fines set by each municipality; patrol officers do collect them on the spot in busy districts.
A note on scope
This is a third-party summary of the two systems as of August 2026, based on Japan's MHLW and e-Gov sources, Vietnamese Law 09/2012/QH13, Resolution 173/2024/QH15 and public reporting on Decree 90/2026/ND-CP. It does not assess any individual venue, and it is not legal advice. Laws in both countries change; check official sources before you travel. This article does not encourage smoking, and smoking by people under 20 is prohibited in Japan.
Frequently Asked Questions
Q.Are e-cigarettes and heated tobacco legal in Vietnam?
A.No. Resolution 173/2024/QH15, adopted on 30 November 2024, bans their production, trade, import, storage, transport and use from 2025 (source: Vietnam News Agency https://chinhsachcuocsong.vnanet.vn/tu-nam-2025-viet-nam-cam-toan-dien-thuoc-la-dien-tu-va-nung-nong/53419.html).
Q.Can I use a heated tobacco device anywhere in Japan?
A.No. Indoor spaces are smoke-free by default; heated tobacco may be used inside a compliant heated-tobacco-only smoking room (source: https://jyudokitsuen.mhlw.go.jp/smoking_room/). Outdoors, many municipalities restrict street smoking and impose fines.
Q.Can I bring a device bought in Japan back to Vietnam?
A.Vietnam's ban covers transport, storage and use of heated tobacco and e-cigarettes, so bringing one back falls within its scope. Check Vietnam Customs and the responsible authorities for the current position.
Q.Which Japanese venues allow smoking while eating?
A.Only two legal categories permit it: a "smoking-permitted room" at a qualifying small eatery that already existed before the transitional rules, and a "smoking-purpose room" at a smoking-purpose establishment, where staple meals are excluded (source: https://jyudokitsuen.mhlw.go.jp/smoking_room/). Always check the sign at the entrance and the venue's own information.