Regulation, Law & GovernanceNational Diet of Japan, Cabinet Office
Japan enacts the AI Promotion Act
Enacted the Act on the Promotion of Research and Development and Utilization of AI-Related Technologies (AI Promotion Act) — submitted Feb 28, passed by the House of Representatives Apr 24, passed by the House of Councillors and enacted May 28, promulgated Jun 4, fully in force Sep 1. No penalties
Why it matters
Japan's first AI law was settled as a promotion act without penalties. Enactment, promulgation and full entry into force are 3 different dates and are often confused
Source — Primary sources first; secondary reports are labelled “Press”
Officialsangiin.go.jphttps://www.sangiin.go.jp/japanese/annai/chousa/rippou_chousa/backnumber/2025pdf/20250929003.pdfAdded in Week 35, 2026 · See that week