United States (federal) vs Japan

Dimension

United States (federal)

Japan

Status

State-led (no federal Act)

Act in force (soft-law)

Max penalty

Varies by state & agency; up to $5,000/day per violation (California)

No AI-specific penalty (promotion statute); APPI up to ¥100M for corporations on a PPC-order breach

Key deadline

Rolling — state deadlines through 2026–2027

Act in force (June–Sept 2025)

# of instruments

3

4

Headline rule

No comprehensive federal AI statute

AI Promotion Act — Act on the Promotion of R&D and Utilization of AI-Related Technologies (2025)

What it requires

The US has no single federal AI law. Binding obligations come from a patchwork of state statutes — California, Colorado, Illinois, Texas and others — overlaid with sectoral federal enforcement by the FTC, EEOC, CFPB and FDA. Multistate operators must comply with the strictest applicable state rule.

Japan has confirmed an innovation-first, light-touch approach. The AI Promotion Act, passed in May 2025, is a promotion statute: it sets national principles and creates a Prime-Minister-chaired AI Strategy Headquarters, but imposes no prohibitions or monetary penalties on businesses. Companies are expected to voluntarily follow the METI/MIC AI Guidelines for Business (human-centricity, safety, fairness, transparency, accountability); the only real legal exposure for AI-related data handling comes via the existing APPI privacy regime, enforced by the Personal Information Protection Commission.