Automating CIAO Declarations for Belgian Cleaning Companies and Meat Processing

CIAO (Check In And Out) is the mandatory attendance registration system for Belgian cleaning companies and meat processing firms. Unlike Checkinatwork in the construction sector Belgium, the CIAO declaration requires both a check-in and check-out time for every worker at every location. Why Is CIAO Declaration So Challenging? Cleaning companies and meat processing firms in Belgium face a unique administrative challenge: - Dozens to hundreds of workers spread across multiple locations - Variable working hours and rotating shifts - High staff turnover makes NISS number management complex - Paper timesheets are error-prone and time-consuming - Late or incorrect CIAO declarations immediately trigger NSSO fines Step by Step: Automating CIAO Declarations with Checkin OK Step 1 — Bulk upload of attendance data Upload your weekly or monthly attendance sheets in CSV or Excel format. Checkin OK supports export formats from popular HR and scheduling software. Even scanned PDFs and photos of paper timesheets are read automatically by AI. Step 2 — Automatic NISS/BIS validation Every NISS number is validated via modulo-97 checksum with pre/post-2000 detection and BIS month normalisation. Errors are flagged in the resolution matrix for your approval before submission. Step 3 — AI correction of data errors Azure GPT-4o automatically corrects typos in personnel identifiers, extracts timestamps from unstructured text, and separates merged fields. You always retain control via the interactive resolution matrix. Step 4 — Generation of NSSO-compliant CIAO XML Checkin OK generates XSD v1.13-compliant CIAO declaration XML ready for submission to the NSSO. Per worker, per day, per location — fully automated. Best Practices for CIAO Compliance - Submit CIAO declarations within 24 hours of the working day - Keep paper backup of timesheets for 5 years - Monthly verification that NISS numbers are still valid for active contracts - Train supervisors on correct attendance registration - Read our post on NSSO Attendance Declarations for context on all obligations Sector-Specific Considerations Cleaning Sector: - Workers often work at multiple locations per day: each location requires a separate CIAO declaration - Night shifts require special attention for the date transition - Temporary workers: the employment agency is responsible for the CIAO declaration Meat Processing: - CIAO is mandatory for all workers in certified meat processing facilities - Foreign workers also require a Limosa declaration and A1 certificate - High-volume environments benefit most from automated CIAO declaration generation Frequently Asked Questions about CIAO Declarations Q: What is the difference between CIAO and Checkinatwork? A: Checkinatwork is for the construction sector Belgium and requires only a check-in. CIAO is for cleaning and meat processing and requires both check-in and check-out. Both are NSSO obligations but through separate systems. See also our Checkinatwork compliance guide. Q: Does CIAO also apply to self-employed cleaners? A: Yes. All persons active in the cleaning sector — employees and self-employed — are subject to the CIAO declaration obligation. Q: How quickly must a CIAO declaration be submitted? A: The CIAO declaration must be submitted before the start of the working day or as soon as possible after check-in. Late submission is sanctioned by the NSSO. Try Checkin OK free today — automate your CIAO declaration and avoid NSSO fines in the cleaning and meat processing sectors.