1) The 3 core obligations you need to check

• Dimona (declaration before the first day of work): the electronic notification to the NSSO for all types of workers (permanent, temporary, students and foreign workers). Must be done before the start of work. Late or failure to declare = fines and social security problems.

• LIMOSA (foreign workers or self-employed): if your subcontractor sends personnel from abroad to Belgium, there must be a LIMOSA-1 declaration before the first day of work. You, as the main contractor, are obliged to check that this is in order.

• Attendance registration (depending on the activity):

  :
  • CheckIn@Work at construction sites/works on real estate with a total amount of ≥ €500,000 (excluding VAT). Daily registration required, before commencement of work.
  • CIAO (Check In and Out at Work) for professional cleaning, depending on the type of services/contract.

2) eC3.2A ("EC32"): the digital control card for construction

In the event of temporary unemployment (for example, due to bad weather at the worksite), construction workers must use the electronic control card eC3.2A.

• Since January 1, 2025, the eC3.2A will be mandatory digital (the paper version will disappear, with some exceptions).
• The official eC3.2 app will allow employees to manage the card digitally and send it to the payout institution at the end of the month.

Important: eC3.2A does not replace Dimona, LIMOSA or CheckIn@Work/CIAO - it is an additional requirement for temporary unemployment in construction.

3) Checklist for working with subcontractors

Before you start

• Require proof of Dimona for anyone entering the site or location.
• For personnel from abroad: require the LIMOSA-1 certificate before the first day of work.
• Make written agreements about who records attendance (CheckIn@Work on large sites / CIAO in cleaning) and how this is checked daily.

Daily

• No one starts without valid declaration and registration.
• In case of substitutions: repeat the process (Dimona/LIMOSA + attendance registration).

Weekly

• Download and archive attendance lists (essential for inspections).
• Check the validity of documents (insurances, attestations, permits).

4) Most common mistakes (and how to avoid them)

• Employees in the workplace without Dimona/LIMOSA.
• Not registering in the proper system (CheckIn@Work or CIAO).
• Blindly relying on subcontractors without any verification or proof.

5) Organize efficiently without endless mails, loose Excels or paper performance statements

• Standardize one checklist for all subcontractors.
• Centralize all info on who is allowed to work, who is present and what documents are missing.
• Record all start and end times on site with a reliable system for full traceability.

Done-it (only time clock) as a practical solution

Done-it helps you especially with what has the most impact on a daily basis: digital time clock/hour registration and attendance overview for both your own team and subcontractors.

• Automatic link with CheckIn@Work (in construction): avoid duplicate registrations and reduce errors where this requirement applies.
• Direct access to eC3.2A (EC32) from the workflow: faster processing of the check card in case of temporary unemployment in construction.
• Presence reports in seconds, ready for inspection.

Please note:in the cleaning sector, official CIAO registration is through the government's own platform. Done-it provides operational oversight and centralizes time clocks, but does not replace CIAO.

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