A curated UK reference centre for landlords, facilities managers and hospitality operators — written and maintained by Gas Safe registered engineers.
Officially RegisteredGas safety in the UK is governed by a layered framework of statute, regulation and British Standards. This hub brings the key references together in one place — written by working Gas Safe registered engineers and cross-referenced to the original sources at the Gas Safe Register, the Health & Safety Executive and the Institution of Gas Engineers & Managers.
Use it to check your obligations as a landlord or business operator, to understand which certificate you actually need, and to verify that the engineer you book is qualified for the work.
What a CP12, CP15, CP17 and CP42 actually cover, who needs one, and how often they must be renewed.
Read guideBS 6173 walkthrough: gas interlocks, ventilation hoods, EHO requirements and pass/fail criteria for kitchens.
Read guideBottled-gas safety for food trucks, leisure vehicles and event caterers. Changeover valves, hose discipline and tightness testing.
Read guideWhat the law requires of landlords, letting agents and hospitality operators — with citations and compliance timelines.
Read guideHow to verify a Gas Safe registration number, what to ask before booking, and the difference between domestic and commercial categories.
Read guideAnnual servicing intervals, common warning signs, and what a Gas Safe boiler engineer actually inspects.
Read guideThe five statutory references every duty-holder should know. Click through to our plain-English explainer for landlord and commercial obligations.
The cornerstone regulation governing the installation, maintenance and use of gas appliances in domestic and commercial premises. Mandates annual safety checks for landlords and competent-person registration.
Places a general duty on employers and the self-employed to ensure the safety of staff and anyone affected by their work — including the safe use of gas equipment on commercial premises.
Requires risk assessment and controls wherever flammable gases (including LPG) are stored or used at work.
Sets out compliance for combustion appliance installations, flues, ventilation and the protection of the building fabric.
Requires the responsible person to manage fire risks — including gas-fuelled equipment, interlock systems and emergency isolation valves.
Verified, primary-source references. We link directly to the UK regulators and standards bodies that govern gas work — not to third-party summaries.
Official UK gas registration body — replaced CORGI in April 2009. The only legally recognised register of gas engineers.
UK regulator responsible for enforcing the Gas Safety (Installation and Use) Regulations 1998.
Oversees standards for gas appliances and installations placed on the UK market.
Statutory guidance for combustion appliances, flues, hearths and fuel storage systems.
British Standard for the installation of gas-fired catering appliances in commercial kitchens.
Licensed professional engineering institution setting technical standards (e.g. IGE/UP/1, IGE/UP/2).
The acronyms and classifications you will see on inspection reports and warning notices, in plain English.
Annual CP12 obligations, record retention, and tenant disclosure timelines under GSIUR Reg. 36.
BS 6173, EHO inspections, gas interlocks and CP42 commercial catering requirements.
CP17 commercial installation records, plant-room compliance and multi-site contract management.
The Gas Safe Register replaced CORGI on 1 April 2009 in Great Britain (and 1 April 2010 in Northern Ireland). It is the only official register of gas engineers legally permitted to work on gas appliances in the UK.
Every Gas Safe registered engineer carries an ID card with a unique licence number, photo, expiry date and the categories of work they are qualified for. You can verify any engineer free of charge on gassaferegister.co.uk by entering their licence or business number.
No. A CP12 (Gas Safety Record) covers domestic gas appliances in rented housing, while a CP17 covers non-domestic / commercial installations. Commercial premises and HMOs with shared boilers usually require a CP17 in addition to other certificates such as CP42 for catering.
Under GSIUR 1998 and HSE guidance, commercial gas appliances should be inspected at least every 12 months by a Gas Safe registered engineer holding the correct commercial categories (e.g. COMCAT 1–5 for catering).
BS 6173:2020 is the British Standard for the specification of installation, exchange, relocation and removal of gas-fired catering appliances. It works alongside BS 6644 (boilers above 70 kW) and IGEM/UP/1B for tightness testing.
Our engineers are Gas Safe registered for both domestic and commercial categories — from CP12 landlord checks to CP42 commercial catering certificates across London and the South East.