Japan's AI Promotion Act and the Hiroshima AI Process

Japan's law, the Act on the Promotion of Research and Development and Utilization of AI-Related Technologies, was enacted in May 2025. It is a framework law: it states basic principles, assigns responsibilities to the national government, local governments, research institutions, businesses and citizens, and establishes an AI Strategy Headquarters led by the Prime Minister with all cabinet ministers. The headquarters drafts an AI Basic Plan setting national policy. The government's stated aim is to make Japan the easiest country in the world to develop and use AI while addressing risks such as misuse, privacy violations and copyright problems. What the law lacks is as important as what it contains. It creates no categories of banned or high-risk AI and no financial penalties. Businesses have a duty to cooperate with government measures. The government can research AI misuse, provide guidance and advice, and publicize cases where rights are seriously harmed. Enforcement of actual harms still runs through existing laws on privacy (the Act on the Protection of Personal Information), copyright, product liability and competition. Detailed expectations sit in soft law. The AI Guidelines for Business, published in April 2024 by the Ministry of Economy, Trade and Industry and the Ministry of Internal Affairs and Communications, consolidated earlier guidance and describe responsibilities for developers, providers and business users, and are updated periodically. Internationally, Japan used its 2023 G7 presidency to launch the Hiroshima AI Process. In late 2023 the G7 released International Guiding Principles and an International Code of Conduct for organizations developing advanced AI systems, and later a Comprehensive Policy Framework. A common misconception is that Japan has no AI policy; it has a deliberate policy that favors coordination and voluntary commitments over prohibitions.