This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union .
It shall apply from 2 August 2026.
However:
(a) Chapters I and II shall apply from 2 February 2025, with the exception of Article 5(1), first subparagraph, points (ba) and (bb), and Article 5(1a) and (1b) which shall apply from 2 December 2026;
(b) Chapter III Section 4, Chapter V, Chapter VII and Chapter XII and Article 78 shall apply from 2 August 2025, with the exception of Article 101;
(c) Chapter III, Sections 1, 2, and 3, with the exception of Article 6(5), shall apply from:
(i) 2 December 2027 as regards AI systems classified as high-risk pursuant to Article 6(2) and Annex III; and
(ii) 2 August 2028 as regards AI systems classified as high-risk pursuant to Article 6(1) and Annex I;
(d) Articles 102 to 110 shall apply from 27 July 2026.