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On July 20, 2026, the European Commission published guidelines to assist providers and deployers of artificial intelligence (AI) systems in meeting transparency obligations under the AI Act (Artificial Intelligence Act), which commence on August 2, 2026. The guidelines clarify compliance requirements for interactive AI systems and the marking and labelling of AI-generated content. Under the AI Act, AI providers must design systems to inform users when they are directly interacting with AI and add machine-readable marks to enable detection of AI-generated or manipulated content. Deployers must inform people when exposed to deepfakes, AI-generated content on matters of public interest without human review or editorial control, and emotion recognition or biometric categorisation systems. These transparency obligations aim to help people recognise when they are interacting with AI or when content has been generated or altered by AI, reducing the risk of deception and manipulation. The guidelines address Article 50 of the AI Act and define the scope of transparency obligations applicable to both providers and deployers. The European Commission has published supplementary resources including a Questions and Answers document on transparency obligations, a fact page on transparency rules for AI systems, and a Code of Practice on Transparency of AI-Generated Content to support compliance efforts. Providers and deployers of AI systems must ensure compliance with these transparency obligations by August 2, 2026. The guidelines and supporting documentation are available on the European Commission's website.