31 july 2026
By way of illustration: this blog post was written with the help of AI, and subsequently verified and adjusted by the Nazka Mapps team. The fact that we are telling you this is no coincidence — it is exactly what article 50 of the AI Act will require from public authorities as of 2 August. Read on and we will explain why.
From 2 August 2026, article 50 of the AI Act applies: the transparency obligation. In short, citizens must henceforth know when they are dealing with AI:
For Flemish public authorities this is not an entirely new world: the principle of open and correct communication with citizens already existed. Article 50 now makes it explicit for situations in which AI is used. In case of doubt, the AI Expertise Centre of the Flemish government (ai@vlaanderen.be) answers questions on this topic.
Strikingly, while we often think that companies form the technological vanguard, we see the opposite in Belgium. Research by Aceerta shows that the public sector adopts AI significantly faster than the private sector, with usage at 75.8% among public employees versus 62% in the private sector. Public authorities are actively integrating AI into their core services: from digital front offices to data analysis for policy preparation.
This means that the transparency obligation of 2 August will be a very concrete test for public organisations. Those who deploy AI for citizen communication, reports or map visualisations must be able to demonstrate where and how that happens.
For map platforms and geodata applications, the impact depends on how they are used:
Most geodata projects are low-risk. But as soon as AI-based spatial analyses are used to support decisions about individuals, enforcement or vital infrastructure, an application moves towards the high-risk category. Think of: AI that determines which neighbourhoods receive extra inspections, systems that allocate subsidies or services based on location and profile, or predictive analyses for police deployment. For these applications, from the end of 2027 stringent requirements apply regarding data quality, logging, human oversight and a fundamental rights impact assessment.
Suppose a municipality uses AI to predict which homes have the highest risk of energy poverty, based on historical renovation and subsidy data. If certain neighbourhoods were systematically measured less in the past, applied for fewer subsidies (for example due to a digital divide or language barriers), or received fewer inspections, then the model will "learn" that blind spot as well. The result: the map appears to show objective risk zones, but in practice diverts resources away from exactly the most vulnerable districts — and thereby reinforces an existing inequality.
This is precisely why the AI Act requires that, for high-risk systems, training and input data must be relevant, representative and as complete as possible, and that known bias is investigated and documented. For geodata there is an extra dimension: spatial representativeness. Are all sub-municipalities equally well covered? Is sensor data fairly distributed across poorer and wealthier neighbourhoods? Are the coordinates of incident reports reliable, or do they mainly come from districts where people report more often? These are questions no algorithm answers by itself — they require domain and data expertise.
We are not lawyers, but we are your technical partner for responsible geodata and AI. Concretely:
The AI Act does not have to be a brake. With the right technical foundation, it becomes an opportunity to build trust: among citizens, within your organisation and with regulators.
Do you want to know what 2 August specifically means for your map applications or geodata projects? Contact us — we are happy to think along.
About this blog post: this text was drafted with the help of AI and subsequently verified in substance by the Nazka Mapps team. We believe you should know that — and from 2 August, the AI Act agrees.
Sources:
3. https://publicaties.vlaanderen.be/view-file/82914
4. https://blog.atabix.nl/ai-act-fase-4-de-nieuwe-verplichtingen-en-hoe-je-hieraan-voldoet
5. https://digital-strategy.ec.europa.eu/nl/policies/regulatory-framework-ai
6. https://economie.fgov.be/nl/themas/online/artificiele-intelligentie/veelgestelde-vragen-over