Legislation, Standards and the RGII Regulatory Framework for Non-Domestic Gas
This domain tests whether you can place a non-domestic job inside the Irish legal and registration framework before touching a pipe. Expect questions on who may work, which document governs when sources conflict, and what certification follows the job.
The layered framework
Non-domestic gas work in Ireland operates under the Gas Safety Act 2015, with the Commission for Regulation of Utilities (CRU) as statutory regulator and RGII as the designated register of gas installers. Registration is scoped: it covers a gas type (natural gas or LPG) and a category (domestic or non-domestic). A domestic-only card does not authorise commercial or industrial work.
The hierarchy is statute and regulations first, then Irish Standards - principally I.S. 820 for non-domestic installations and I.S. EN 1775 for gas pipework in buildings - then the manufacturer's instructions. If instructions are less demanding than the standard, the standard prevails.
Practical duties
- Work only inside your registration and competence, and carry your RGII identification.
- Certify/notify the work through the scheme and leave an incomplete installation safe.
- Check appliances are marked for the gas family, pressure and destination; marking alone does not prove flueing and ventilation compliance.
- Record enough that another competent person can reconstruct the job.
Worked example
A fitter registered for domestic natural gas is asked to install a 120 kW commercial boiler fed from a bulk LPG tank. The answer is to decline the gas work. The registration covers neither the non-domestic category nor LPG, and bulk LPG adds separation distances, a tank emergency control and vapour-supply rules. The fitter may do non-gas tasks but must not test, commission or certify.
Traps
Treating an RGII card as a general licence; assuming manufacturer instructions override a standard; believing a CE mark discharges installation duties; doing "just the pipework" with no certificate.
Exam focus
Regulator versus register; scope of registration; order of precedence among statute, standard and instructions.