## TL;DR
2024-2026 marks the transition from voluntary AI ethics principles to binding regulation. The EU AI Act set the global standard; the US follows with executive orders and state-level laws. China, UK, and G7 add regulatory layers.

## Core Explanation
Regulatory approaches: EU — risk-based tier system with heavy compliance burden; US — sector-specific (FDA for medical AI, NHTSA for autonomous vehicles) plus executive orders; China — algorithm registry and content control; UK — principles-based, regulator-led. The Bletchley Declaration (2023) and Seoul Statement (2024) represent international coordination.

## Detailed Analysis
Key requirements: transparency (disclosing AI use, training data), safety testing (red-teaming, benchmarks), accountability (human oversight, liability), and fairness (bias audits). The Frontier AI Safety Commitments (Seoul, 2024) established voluntary safety frameworks from leading labs.

## Further Reading
- EU AI Act Compliance Checker
- Stanford HAI: AI Policy Tracker
- IAPP: AI Governance Resources