All checks are based on the following documents. When the rules change, we check the documents again and update the checks and retrieval dates. Where MLIT publishes an English version, the English version is linked; the Japanese original is used for the checks.
- Japan Ministry of Land, Infrastructure, Transport and Tourism (MLIT): new rules for carrying power banks on board (announced April 14, 2026; applied from April 24, 2026) [in Japanese] (retrieved 2026-09-27)
- MLIT: "To All Passengers: Regarding Bringing Power Banks on Board" (English version) (retrieved 2026-09-27)
- MLIT: "Examples of Dangerous Goods by Air Transportation" (English version, last updated April 24, 2026) (retrieved 2026-09-27)
- MLIT: "Attention! Customers purchasing hair care items: Check that your purchase can be taken on board your aircraft!" (English version) (retrieved 2026-09-27)
- MLIT: "Items restricted in carry-on or checked baggage" [in Japanese] (retrieved 2026-09-27)
- MLIT Civil Aviation Bureau: "Security Control for Screening Liquids, Aerosols and Gels (LAGs) carried into International Passenger Flights departing from Airports in Japan" (English version) (retrieved 2026-09-27)
- MLIT: "List and Description of LAGs Restriction" (English version of the list of liquids, 2015) (retrieved 2026-09-27)
- ICAO (International Civil Aviation Organization): "New power bank restrictions will safeguard international aviation" (March 27, 2026) (retrieved 2026-09-27)
- IEC (International Electrotechnical Commission) World Plugs country list (as of June 2025). The IEC no longer publishes this list, so a copy is kept on this site (retrieved 2026-09-27)
What this tool does not check
- Entry procedures (such as ESTA). Check each country's official guidance
- Country-specific rules for flights departing from airports outside Japan
- Whether products for Japan (100V) can be used at voltages outside their label (ask the manufacturer)
- How to choose transformer capacity (follow the transformer's manual)