Documentation, Certification, Handover and Records for Non-Domestic Gas Work
This domain tests the paper trail: what you certify, what you hand over, and what you keep so the next person can work safely.
Certification
RGII-registered work is certified through the scheme's certificate/declaration process, appropriate to the non-domestic category and gas type. The certificate identifies the installer, the premises, the gas type, the scope of work and the test results. It is not a substitute for the appliance manufacturer's commissioning record or for the building's safety file.
Handover pack
A proper handover includes:
- appliance manuals and instructions;
- a schematic of the installation, including isolation valves and emergency controls;
- commissioning readings: gas rate, operating pressure, combustion results, tightness test and purge record;
- ventilation and flue details, with labels fixed at the plant room;
- a maintenance schedule and emergency contact details;
- warning notices for LPG, ventilation openings and isolation points.
Records
Keep test and commissioning records, detector calibration certificates, and any decommissioning or modification record. Records must be legible, dated and traceable to the installation.
Worked example
A 250 kW boiler is replaced. The handover should include the new boiler's benchmark commissioning record, flue gas readings at high and low fire, gas rate and operating pressure, the tightness test result for the new section, a photograph or sketch of the modified pipe route, and an updated schematic showing the new isolation valve. The certificate alone is not enough.
Traps
Certifying work you did not test; handing over manuals with no commissioning data; failing to update the schematic after modification; leaving the old decommissioned pipe on the drawing; no record of ventilation openings.
Exam focus
Certificate content, handover contents, record traceability and the distinction between certification and commissioning data.