AI Systems Already Placed on the Market or put into Service and General-Purpose AI Models Already Placed on the Market

Summary

Transitional provisions: high-risk AI systems already on the market on 2 August 2026 must comply only when subject to a substantial design change after that date — except large-scale IT systems in Annex X, which must comply by 31 December 2030. GPAI models on the market before 2 August 2025 must comply with Chapter V by 2 August 2027.