Can I Use an App for Check-in-at-Work?

Yes — you can register Check-in-at-Work via a mobile app. Learn how it works, what the NSSO requires, and how Suivo makes CIAW and CIAO compliance automatic.
Can I Use an App for Check-in-at-Work (CIAW)? | RSZ Compliance Made Easy | Suivo

Check-in-at-Work goes mobile

In Belgium, Check-in-at-Work (CIAW) and Check-in-and-out-at-Work (CIAO) is a legal requirement for many sectors, but how you register it is up to you.
And yes, you can absolutely use an app for it.

In fact, for mobile teams in construction, cleaning, and industrial services, an app is now the most reliable and compliant way to meet NSSO obligations.

Paper forms and manual uploads are fading fast. And since 2025, the new Check-in-and-Out-at-Work (CIAO) rules will make digital registration almost unavoidable.

What the law says about Check-in-at-Work

Under Belgian NSSO regulations, every worker on a qualifying site must be registered in the CIAW system.
This includes:

  • Employees
  • Subcontractors
  • Temporary workers
  • Self-employed contractors

The NSSO doesn’t care how you register. Only that it’s accurate, complete, and on time.
That means you can use:

  • A desktop tool
  • A badge or site pole
  • A mobile app that connects directly to the NSSO

As long as the data is transmitted correctly, all are fully compliant.

Why using an app makes the most sense

For companies with mobile or multi-site teams, an app has clear advantages:

Benefit

What it means

Real-time registration

Workers check in/out from their phone. Data sent instantly to NSSO.

Automatic site detection

GPS or site code automatically links the worker to the correct location.

No manual uploads

Removes the need for separate CIAW file exports.

Integrated compliance

Check-in-at-Work happens alongside time and absence registration.

With an app like Suivo’s Time Logger, registration happens automatically, no extra steps, no paperwork.

How Suivo’s mobile Check-in-at-Work works

Here’s how it looks in practice:

  1. Worker arrives on site.
    They open the Suivo Check-in-at-work app or the Suivo Time Logger App and check-in. or badge via vehicle/site terminal.
  2. Automatic CIAW registration.
    The system logs their presence, site code, and timestamp in real time.
  3. Data syncs to NSSO.
    Suivo sends the data directly to the CIAW/CIAO platform, fully compliant.
  4. Visibility for HR & planning.
    Every check-in/out appears instantly in the Suivo dashboard, linked to time, absences, and payroll.

It’s simple, fast, and 100% audit-proof.

Preparing for CIAO 2025

Since January 2025, CIAW gets accompagnied by Check-in-and-Out-at-Work (CIAO).
The new rules require both entry and exit times, plus live reporting to NSSO.

Using an app now ensures you’re already ready for CIAO.
Suivo is fully CIAO-compliant, meaning it can handle both directions automatically. No extra steps or software changes needed.

Common questions about CIAW apps

Is an app as reliable as a site badge or pole?
Yes. The NSSO recognises any approved method that registers presence with the correct site ID and timestamp.

Can subcontractors use the same app?
Absolutely. Each user is linked to their employer or subcontractor ID, keeping compliance intact.

Is it GDPR-safe?
Yes. Suivo’s platform is fully GDPR-compliant, encrypting and storing data securely in the EU.

More questions about CIAW? Read our FAQ

From manual to mobile

A cleaning company with 300 mobile workers switched from manual CIAO uploads to the Suivo app.

Before:

  • Supervisors manually reported presence per site.
  • Uploads to NSSO often delayed.
  • CIAO errors led to warnings.

After:

  • Workers check in/out directly from their phones.
  • Data sent instantly to NSSO.
  • 100 % compliance and 2 hours of admin saved per day.

“We no longer think about CIAW,  it’s all done automatically in the background.”

The easiest way to stay compliant

Yes, you can (and should) use an app for Check-in-at-Work.
It’s faster, safer, and future-proof, especially with CIAO entering the conversation.

Stay compliant automatically.
Book your free expert session and see how Suivo’s mobile app simplifies CIAW and CIAO reporting for every site and worker.

Cool stuff

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What’s New in Suivo Time Registration? Product Update 2026

09/04/2026

Time Registration in Construction: A Complete Guide for Belgian Companies

Checklist: Is Your Construction Company Ready for Mandatory Time Registration 2027?

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