Chain liability compliance
If a contractor on your site isn't compliant, your company is liable. 9ID verifies every worker and subcontractor before they reach the gate, keeping your site compliant and audit-ready.
Manual processes cannot keep pace with multi-tier contractor chains, expiring documents, and unannounced labor audits.
Your legal responsibility doesn't stop with the main contractor. When work is passed down to sub-tier contractors, your company remains legally liable for every worker in that chain.
In an inspection the burden of proof is yours. A file anyone can edit afterwards can't show who verified each worker or when, so the due diligence you did stays unprovable.
Work permits, posting declarations, and safety certificates expire constantly. Manual tracking inevitably lets non-compliant workers slip through the gate.
What a gap costs
Active due diligence is your only legal exemption. If you cannot produce timestamped proof instantly, your company carries the liability.
Indicative ceilings, linked to official sources. Not legal advice.
The chain liability blueprint
9ID covers your entire supply chain across two layers: company-level vetting and individual worker verification. Preconfigured with statutory compliance rules, the platform automates pre-arrival checks so every entry is audit-ready from day one.
Every company in the chain starts from the one identifier you already have. 9ID validates the VAT registration against the source and checks social and fiscal debt, and actively monitors them.
Every worker verifies their identity and submits required compliance documents before arriving on site. 9ID monitors expiration dates automatically afterwards.
Configured out of the box. Add more checks from the library when required.
Automated workflow
How 9ID handles worker due diligence from pre-arrival collection to audit.
Lower-tier subcontractors have to complete the same compliance checks as main contractors.
Automatically collect and verify required documents from every company and their workers before anyone arrives on site.
Automatically flag missing or expired documents, prompt contractors for corrections, and deny gate entry until resolved.
Store all verification records, timestamps, and approval trails centrally to satisfy statutory retention rules.
9ID × PwC Legal Belgium
“9ID provides a complete overview of all companies and subcontractors across our locations. We know exactly who is on site and, most importantly, we can verify everything instantly.”
Create your account to activate chain liability blueprint for your sites today.
Sign InShort answers on the checks, rollout, and what your contractors do.
Two layers of checks. For every company in the chain, 9ID validates the VAT registration against the source and checks social and fiscal debt, then keeps monitoring both. For every worker that company sends, it runs an identity check and collects the compliance evidence that applies: legal residence, work authorisation, posting declaration, and A1. Everything is collected before arrival rather than at the gate.
They onboard themselves. You send a link; the company registers, adds its workers, who submit the required evidence. 9ID automatically verifies everything before anyone reaches the gate, so your team only reviews what is flagged.
Yes. Lower-tier subcontractors complete the same company and worker checks as the main contractor, so a work package that is passed down does not leave a gap in your records.
9ID flags it, prompts the contractor to correct it, and keeps gate access blocked until it is resolved. Expiry dates are monitored automatically, so a fresh document is requested before the old one lapses instead of after someone is already on site.
Yes. The blueprint arrives preconfigured with the company and worker checks plus five-year retention, and you add more checks from the library where your own policy, customer, or site asks for more.
The checks, requirements, and retention rules are already set up, so the work is inviting contractors rather than designing a workflow. Most teams start with one site or one contractor chain, invite the direct contractors, and see live evidence come in within days.
Every verification leaves a timestamped record of what was checked, against which documents, and when, including how an exception was handled. Records are kept centrally and can be exported for inspections and internal reviews.
Data is encrypted in transit and at rest, access is role-based, and every action is logged. 9ID is GDPR-compliant and certified to ISO 27001 and ISO 27701, and a Data Processing Agreement is available as part of onboarding.
No. 9ID provides the workflow, evidence, monitoring, and audit trail that support your compliance programme. The information on this page is general and is not legal advice.
