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Jurisdiction · 2 regulations

Japan: data, AI and cyber laws

2 regulations in Japan that affect companies handling data: Japan AI Promotion Act, Japan APPI. Part of APAC.

2 regulations

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	Status
Japan AI Promotion Act Act on Promotion of Research and Development, and Utilization of Artificial Intelligence-Related Technology	In force	Jun 4, 2025	None upcoming
Japan APPI Act on the Protection of Personal Information (Act No. 57 of 2003), as amended including the 2026 amendment act	Amended	Apr 1, 2005	None upcoming

Japan AI Promotion Act
Japan
In forceAI
Effective Jun 4, 2025
Japan APPI
Japan
AmendedPrivacyChildren
Effective Apr 1, 2005

Past deadlines

July 20261 deadline

Jul172026
Japan APPIJapan
2026 APPI amendment act promulgated
Amendment enacted by the Diet on 10 July 2026 and promulgated; main provisions take effect by cabinet order within two years of promulgation.
Transition2 months agoSource

September 20251 deadline

Sep12025
Japan AI Promotion ActJapan
AI Promotion Act fully in force
Provisions establishing the AI Strategy Headquarters and AI Basic Plan take effect.
Takes effect13 months agoSource

June 20251 deadline

Jun42025
Japan AI Promotion ActJapan
AI Promotion Act promulgated and partly in force
Most provisions, including basic principles and stakeholder duties, take effect on promulgation.
Takes effect16 months agoSource

April 20221 deadline

Apr12022
Japan APPIJapan
2020 amendments in force
Mandatory breach reporting, pseudonymized information and stricter cross-border rules apply.
Takes effect4.5 years agoSource

When the rules change: new data, privacy and AI laws and deadlines, the next morning.