Glossary
Registered provider (RP)
An organisation registered with the Regulator of Social Housing to provide social housing. Housing associations are registered providers. Registration comes with legal obligations on repairs, complaints, and tenant engagement.
Related terms
ICO (Information Commissioner's Office)
The UK regulator for data protection. Support for Tenants is registered with the ICO (No. ZB796409).
Gas safety certificate (CP12)
Annual safety check landlords must arrange for any gas appliance in your home, carried out by a Gas Safe registered engineer. You must be given a copy within 28 days. Missing or expired CP12 can void Section 21 and is itself a serious breach.
NICEIC
National Inspection Council for Electrical Installation Contracting. The main certifying body for UK electricians. Landlords must use NICEIC (or equivalent) registered electricians for fixed wiring work. EICR (Electrical Installation Condition Report) is mandatory every 5 years in private rented sector.
ARLA (now ARLA Propertymark)
The main professional body for UK letting agents. ARLA-registered agents are bound by a code of conduct and a client money protection scheme. Useful to mention in complaints about private letting agents, they may be subject to ARLA disciplinary procedures.
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Glossary entries explain the words. If you have a damp, mould, heating or repair problem your landlord is ignoring, we can help. Call free or start your claim online.
By: Support for Tenants editorial team
Last updated:
Reviewed against current housing law for England and Wales as at 15 June 2026. Checked by our SRA-regulated panel solicitors. This is general information, not legal advice for your specific case. Any compensation figures or ranges shown are illustrative only and not guaranteed; every case is different.