EU AI Act implementation milestones and enforcement actions

As of 25 May 2026, the European Commission has concluded its targeted consultation on measuring AI energy consumption, a key step toward the Act's environmental transparency goals. This follows the 'AI Act Omnibus' agreement earlier this month, which significantly extended compliance timelines, pushing the deadline for stand-alone high-risk systems to December 2027 and product-embedded systems to August 2028. Stakeholders have until 23 June 2026 to provide feedback on the draft guidelines for high-risk AI classification.

• AI Energy Measurement Consultation Closure: The European Commission's targeted consultation on measuring AI energy use and emissions across the lifecycle closed on 25 May 2026. 📅 Calendar file (.ics) EU AI Energy Measurement Consultation Closes May 25, 2026
• Annex III High-Risk Compliance Deadline: The compliance deadline for stand-alone high-risk AI systems (e.g., employment, education, biometrics) has been postponed to 02 December 2027. 📅 Calendar file (.ics) Annex III High-Risk AI Compliance Deadline December 2, 2027
• Annex I High-Risk Compliance Deadline: Compliance for high-risk AI systems embedded in regulated products (e.g., medical devices, machinery, lifts) is now set for 02 August 2028. 📅 Calendar file (.ics) Annex I High-Risk AI Compliance Deadline August 2, 2028
• High-Risk Classification Guidelines Consultation: The public consultation for the draft guidelines on high-risk AI classification, released on 19 May, is open until 23 June 2026. 📅 Calendar file (.ics) High-Risk AI Classification Consultation Deadline June 23, 2026
• Enforcement of 'Nudifier' AI Prohibition: The new ban on AI systems generating non-consensual intimate content or child sexual abuse material (CSAM) begins enforcement on 02 December 2026. 📅 Calendar file (.ics) Enforcement of 'Nudifier' AI Prohibition December 2, 2026
• Transparency Deadline for Existing Generative AI: Generative AI systems placed on the market before August 2026 must comply with watermarking and labeling rules by 02 December 2026. 📅 Calendar file (.ics) GenAI Transparency Compliance Deadline December 2, 2026

In May 2026, EU lawmakers reached a major political agreement on the 'AI Act Omnibus,' which significantly postpones several key compliance deadlines to provide more time for technical standards and regulatory guidance. Additionally, the European Commission released long-awaited draft guidelines on 19 May 2026 to clarify the classification of high-risk AI systems, launching a public consultation that runs through late June.

• Political Agreement on AI Act Omnibus: On 07 May 2026, EU negotiators agreed on amendments to delay high-risk AI compliance deadlines and introduce new prohibitions.
• New High-Risk AI Deadline (Annex III): The compliance deadline for stand-alone high-risk AI systems (e.g., employment, education) has been postponed from August 2026 to 02 December 2027. 📅 Calendar file (.ics) Revised Deadline: Annex III High-Risk AI December 2, 2027
• Draft High-Risk Classification Guidelines: The European Commission published 160+ pages of draft guidelines on 19 May 2026 to help organizations determine if their systems are 'high-risk.'
• New Prohibition on 'Nudifier' AI: A new ban on AI systems generating non-consensual intimate content or child sexual abuse material was added, with enforcement starting 02 December 2026. 📅 Calendar file (.ics) Enforcement: Ban on Non-Consensual Intimate AI Content December 2, 2026
• Consultation Deadline for AI Guidelines: Stakeholders have until 23 June 2026 to provide feedback on the draft high-risk classification and transparency guidelines. 📅 Calendar file (.ics) Deadline: AI Act Guidelines Consultation June 23, 2026