Compliance certificates in the golden thread: what to hold
Compliance certificates are the evidence that the building's safety systems have been installed, inspected and tested by competent people: gas, electrical, fire alarm, lifts and ventilation. The golden thread must hold them, current and traceable, with expiry dates tracked.
Why certificates matter
A certificate records that a competent person inspected, tested or installed something, and when. In the golden thread, certificates are the evidence layer behind the safety case: they show that the fire alarm is tested, the electrical installation is safe, the lift is maintained and the gas installation is compliant.
A certificate without a register is nearly useless: if no one knows which certificates exist, which are current and which have expired, the accountable person cannot demonstrate that the building is being maintained safely.
What to hold, and what to record
| Certificate type | What to hold |
|---|---|
| Electrical | EICR (fixed installation) with recommendation codes; any minor works certificates |
| Gas | Gas safety records for any gas installations, with engineer registration numbers |
| Fire alarm | Design, commissioning and periodic test certificates for detection and alarm systems |
| Emergency lighting | Commissioning and periodic duration/function test certificates |
| Lifts | Thorough examination reports and maintenance certificates |
| Ventilation / smoke control | Commissioning and test certificates for mechanical ventilation and smoke control |
| Water safety | Legionella risk assessment and any associated inspection records |
Sources: GOV.UK guidance; GOV.UK, preparing a safety case report.
What the certificate register records
- Certificate type and reference - unique reference per certificate
- Issue date and expiry - every certificate's validity window, tracked
- Issuing body / engineer - who issued it, with registration numbers where relevant
- Asset link - which asset or system the certificate covers (asset ID)
- Evidence trail - findings, recommendations and follow-up actions linked to the certificate
The register is what turns a box of certificates into an auditable position: at a glance, what is current, what expires soon and what needs re-testing.
From a box of certificates to a tracked register
- Receive - digital copies of certificates, emails and contractor files
- Extract - type, date, expiry, issuer and findings captured per certificate
- Build the register - linked to assets, with expiry flags and follow-ups
- Deliver - a current certificate register with the documents indexed
Questions, answered
Which certificates must be in the golden thread?
Hold the certificates that evidence safety-critical inspection and testing: electrical (EICR), gas, fire alarm, emergency lighting, lifts, ventilation/smoke control and water safety. The prescribed information table maintained by the Building Safety Alliance is the reference for the full set.
What happens when a certificate expires?
An expired certificate means the underlying inspection or test is no longer evidenced. The register should flag expiry dates in advance so re-testing is scheduled before the gap appears, and the new certificate replaces the old one in the thread (with the old one retained as history).
Do old certificates stay in the golden thread?
Yes. Regulation 31 requires previous versions of updated documents to remain part of the thread. An expired certificate stays as history; the register shows it is superseded by the current one.
What if we cannot find certificates for our building?
Arrange current inspections and tests so the building has up-to-date evidence, and record the gap. The accountable person should also make reasonable enquiries with past contractors and agents. For the golden thread, current evidence plus a recorded gap is far stronger than silence.
Who issues compliance certificates?
Competent, registered professionals: electricians registered with a scheme, Gas Safe engineers for gas, lift thorough examinations by competent persons under the Lifting Operations and Lifting Equipment Regulations, and so on. The register should record the issuer and registration details for traceability.
Related guides
- What is the golden thread? - the requirement and who it applies to
- Golden thread asset register - link certificates to the assets they cover
- Golden thread fire safety file - fire certificates within the wider file
Need help putting this into practice?
We process, structure and validate golden thread records so they answer the regulator's questions. Every project is scoped and quoted individually.