UK AI Infrastructure: No AI Law, But Malpractice Insurers Taking Notice of Connecticut CART Act as Template

The UK remains without general AI legislation — the government has maintained its sector-specific, principles-based approach confirmed in the February 2025 AI White Paper. The UK AI Safety Institute (renamed the AI Security Institute in late 2025) continues to operate the voluntary AI Safety Testing Framework, and the AI Copyright Transparency Bill remains in progress. DraftWise's August 3 briefing noted that malpractice insurers are now taking notice of Connecticut's CART Act as a cross-border reference point — particularly its provisions requiring disclosure when AI is used in employment-related decisions and its hallucination accountability framework. Law.com reported this week on Ohio's AI ethics guidelines as a template for updating outside counsel guidelines for the AI era. For UK law firms and legal departments with US operations or US clients: the convergence of Connecticut's CART Act (October 1, 2026 effective for most provisions), Ohio's OCG template, and the Alabama Bar's Formal Opinion 2026-01 on agentic AI creates a de facto US AI governance baseline that UK-headquartered operations need to map their US client relationships against. UK firms that manage US litigation, employment, or transactional matters for US or EU clients are now operating in a multi-jurisdiction AI disclosure environment with different obligations in each.