Why NSSO compliance matters
In Belgium, companies in construction, cleaning, and industrial services must comply with Check-in-at-Work (CIAW) and Check-in-and-Out-at-Work (CIAO) regulations.
That means every worker’s presence must be registered correctly with the NSSO (National Social Security Office).
But here’s the problem:
Not every time registration system on the market is NSSO-compliant.
Some track hours, but don’t send data to NSSO.
Others lack the legal fields (like site ID or employee NSSO number) needed for CIAW/CIAO submissions.
Choosing the wrong system could mean fines, inspection warnings, or even blocked payments on public contracts.
What does NSSO-compliant mean?
An NSSO-compliant time registration system automatically collects, formats, and transmits employee presence data to the NSSO in accordance with Belgian law.
To qualify as compliant, a system must:
- Support CIAW and CIAO registration formats
- Include site ID codes and worker NSSO numbers
- Log entry and exit times (CIAO-ready)
- Store data securely for audits
- Sync automatically with the NSSO web services
- Provide an audit trail for each registration
If your current system can’t do all of that, it’s not fully NSSO-compliant.
The risk of using non-compliant systems
Using non-certified or generic time tracking tools (like Excel, clock-ins, or basic apps) leads to:
- Missing NSSO data fields
- Late or manual file uploads
- Lack of proof during inspections
- Repeated fines up to €6,000 per violation
Even if your tool tracks hours accurately, it’s not legally compliant unless it reports to the NSSO.
Why Suivo is NSSO-compliant by default
Suivo Time Registration & Absence connects directly to NSSO web services. Meaning every registration is transmitted automatically and securely.
Key compliance features:
- Mobile, vehicle, and site pole check-ins
- Automatic NSSO data sync (CIAW & CIAO)
- Audit-proof logs with timestamps and site codes
- Integration with ERP & payroll for full transparency
- GDPR-compliant cloud hosting within the EU
Once activated, you never need to upload files or chase missing data again. Everything happens in real time.
The CIAO update: Check-in-and-Out-at-Work (CIAO)
Since 1 September 2024 for cleaning activities, and from 1 April 2027 for works in immovable state above EUR 500,000 excl. VAT, the NSSO enforces Check-in-and-Out-at-Work (CIAO) an expanded version of CIAW for broader industries.
What changes:
- Both entry and exit times become mandatory
- Applies to more sectors (cleaning, maintenance, facilities)
- Requires real-time reporting via web services
Most older systems will need an update, but Suivo is already CIAO-ready today.
From risk to compliance
A Belgian contractor managing multiple worksites used a mix of manual logs and Excel exports for CIAW.
After repeated inspection warnings, they switched to Suivo.
Results:
- 100 % NSSO compliance
- No missed registrations in 12 months
- Admin time for compliance reduced by 80 %
- Zero fines since implementation
“Suivo took compliance off our checklist — it just runs automatically.”
How to verify if your system is NSSO-compliant
Here’s a quick checklist:
- Does it connect directly to NSSO web services?
- Does it include site ID codes and NSSO fields?
- Can it handle both check-in and check-out (CIAO)?
- Does it generate audit reports automatically?
- Can you see registrations in real time?
If you answered “no” to any of these, your system is not fully compliant.
Choose compliance you can trust
In Belgium, NSSO compliance isn’t optional. It’s essential.
With Suivo, you get a future-proof, CIAO-ready system that handles every registration automatically, ensuring accuracy and peace of mind.
Stay compliant, automatically.
Book your free expert session and discover how Suivo keeps your time registration 100% NSSO-compliant. Today and tomorrow.
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Make Every Hour Count
A practical guide to digital time registration for teams that work off-site, across sites or on the road.
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