A new obligation with a deadline
By 1 January 2027 at the latest (the exact date follows by Royal Decree): check-in and check-out, in real time, by the worker themselves, on site.
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Presence registration
By 1 January 2027 at the latest, every site registers check-in and check-out. Be ready.
CIAO Construct, our registration solution for the construction sector: workers register check-in and check-out in real time on site, in their own language — and every movement reaches the NSSO automatically, followed through to the final response. Proven in the cleaning sector, where the rules applied first.
- Automatic NSSO declaration within the legal deadline
- App in 11 languages
- EU-hosted, GDPR-compliant
01 The problem
Sound familiar?
Your site, other people's workers
Subcontracting chains make registration a shared problem — one you still have to be able to demonstrate.
"2027-ready" is not the same as compliant
A time clock that forwards data does not tell you whether the government accepted your registration.
The question is not whether you will have a system before the deadline — but whether it demonstrably works on day one.
02 How it works
From one tap to an accepted declaration
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The worker checks in
One tap in the CIAO Mobile app, in their own language; the geofence confirms presence at the right work location.
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CIAO Construct files the registration with the NSSO
Automatically, within the legal deadline, signed with your own NSSO certificate — and guaranteed never twice.
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You see the result
Every declaration is followed through to the final government response, in plain language in your dashboard and reports.
Behind the scenes: every movement is signed with your own NSSO certificate, sent within the legal deadline, and followed through to the final government response.
03 What CIAO Construct does
Register. File. Follow up. Prove.
One tap, in their own language
The CIAO Mobile app runs in 11 languages, with PIN-first sign-in, a dark theme for outdoor work, and buttons that work with work gloves on.
Filed automatically, never twice
Every qualifying movement reaches the NSSO within the legal deadline. Three independent safeguards rule out duplicate declarations; failed submissions are retried automatically and reported rather than repeated endlessly.
Followed to the government response
CIAO Construct tracks every registration until it is accepted or rejected, translates every remark into plain language, and freezes each movement as an immutable snapshot — audit-proof.
Built for your reality
Multiple legal entities in one organisation, teams with their own sites and managers, and registrations from other systems on the same contracts — in a single view.
04 Privacy
Registration without surveillance.
The app reads location only at the moment of checking in or out, to confirm that your worker is at a registered work location. No background tracking, no permanent monitoring — and the app says so to the worker in as many words. Position history has a short, configurable retention period.
A registration system you can also put in front of the works council.
05 The app
CIAO Mobile — made for the shop floor
One app for every worker: check in, check out, and see what was registered. No training needed, no manual on site.
What do the NSSO error codes mean? The full guide lives on ciao-connect.be — one catalogue for the whole CIAO family, never a copy per site.
06 The CIAO family
Already registering with another system?
Or do you also want to monitor what is already filed with the NSSO? CIAO Connect, our compliance monitoring for Check In and Out at Work, continuously checks every registration — including registrations that never went through CIAO.
One platform, three ways in: register with CIAO Construct, monitor with CIAO Connect.
07 Trust & security
Built the way a registration product should be
- EU data hosting
- GDPR-compliant
- Encrypted NSSO certificates (AES-256-GCM)
- Full audit trail
- Roles and permissions for safe delegation
08 Frequently asked questions
Answered straight
When does the obligation take effect?
By 1 January 2027 at the latest; the exact date will be set by Royal Decree (programme act of 30 May 2026).
What exactly has to be registered?
Check-in and check-out, in real time, by the worker themselves, at the temporary or mobile construction site. This is general information, not legal advice.
Does this work with subcontractors on my site?
Yes. Workers from different employers, teams and entities sit in a single view, and registrations filed with the NSSO through other systems are read in against the same contracts.
Is this the same as your cleaning solution?
Yes — the same platform and the CIAO Construct app, already in daily use in the cleaning sector, where the registration obligation applied first. You are not buying a promise for 2027, but a system that already works.
Which languages does the app work in?
Available in 11 languages, including Arabic with full right-to-left support.
Does the app track my workers?
No. Location is read only at the moment of checking in or out, to confirm presence at a registered work location — no background tracking, and the app says so to the worker in as many words.
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