EU AI Act Article 50 Compliance Checklist

Article 50 of the EU AI Act became enforceable on 2 August 2026, and it applies to far more businesses than the Act's high-risk rules. If your product uses a chatbot, generates text, images, or audio with AI, or shows AI-generated content to EU users, this AI Act compliance checklist walks through exactly what you need in place — and where most teams get it wrong.

This isn't legal advice — it's an operational checklist. For a legal determination of your obligations, consult counsel.

Does Article 50 apply to you?

Your product includes a chatbot, virtual assistant, or any AI system that interacts directly with users
Your product generates synthetic text, image, audio, or video content
You publish AI-generated or AI-assisted text to the public without substantive human editorial review
You use emotion recognition or biometric categorization systems
Any of the above reaches users located in the EU, regardless of where your company is based

If you checked any box, Article 50 likely applies to you.

The Article 50 checklist

2.1 — AI interaction disclosure (Article 50(1))

Users are told they're interacting with an AI system before or at the first interaction
The disclosure is clear and distinguishable — not buried in a footer or ToS
Disclosure is accessible (meets accessibility requirements, not just a visual cue)
Disclosure persists or repeats appropriately for longer sessions

2.2 — Synthetic content marking (Article 50(2))

AI-generated text, image, audio, or video output is marked in a machine-readable format
The output is technically detectable as AI-generated (not just a visible label)
Marking works across every provider/model you use (OpenAI, Anthropic, Gemini, etc.)

2.3 — AI-generated public content labeling (Article 50(4))

Published AI-generated text carries a visible AI-origin label — unless a human took substantive editorial responsibility for it
"Substantive" review is documented — a spell-check or quick skim does not qualify for the exemption
AI-generated images/video (deepfakes) are labeled as artificially generated or manipulated

2.4 — Evidence and audit trail

You can produce a record showing when disclosure was shown to a user and when content was labeled
Records don't need to store conversation content — metadata (timestamp, provider, disclosure status) is enough and is safer from a privacy standpoint
Logs are insert-only and exportable for a regulator or customer request

2.5 — Governance

You have an internal inventory of every AI system/vendor tool in use that touches EU users
You've assigned an owner for Article 50 compliance internally
You have a documented procedure for legal/data-access requests related to AI disclosure records

Common mistakes

Treating a one-time banner as sufficient instead of a persistent, testable disclosure mechanism
Assuming the high-risk AI delay (Annex III, now Dec 2027) also delayed Article 50 — it didn't; Article 50 has been enforceable since 2 August 2026
Labeling content visually but not in a machine-readable format, which fails Article 50(2)
No audit trail — unable to prove disclosure was actually shown, not just designed

How to automate this

Building and maintaining Article 50 disclosure and labeling by hand across every AI feature is what most engineering teams underestimate. Disclarion is an SDK that adds a compliant disclosure modal, content labeling badges/watermarks, and a backend audit trail to any AI product in a few lines of code — across OpenAI, Anthropic, and Gemini.

See how it works

For a deeper look at any one obligation: AI chatbot disclosure in the EU, AI-generated content labeling in the EU, or, on the evidence point above specifically, why an audit trail doesn't need the conversation itself. On the first FAQ item below — if your company isn't based in the EU at all, see whether Article 50 still applies to you.

Frequently asked questions

Does Article 50 apply outside the EU?

Yes — it applies to any provider or deployer whose AI system reaches users in the EU, regardless of where the company is headquartered.

What are the penalties for non-compliance?

Under Article 99(4)(g), penalties can reach up to €15 million or 3% of global annual turnover, whichever is higher. For SMEs and start-ups, the AI Act applies the lower of the two amounts (Art. 99(6)).

Is a visible disclosure banner enough?

Not on its own. Article 50(2) also requires machine-readable, technically detectable marking of synthetic content — a visual label alone doesn't satisfy that requirement.

Does human review remove the need for disclosure?

For AI-generated public interest text, yes — but only with substantive editorial review and clearly assigned editorial responsibility. A superficial check does not qualify.

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