1.3 Landlord Gas Safety Duties & CP12 / Safety Check Records (Regulation 36)
Key Takeaways
- Regulation 36 requires landlords of residential rented properties to ensure all gas appliances, flues, and pipework provided by them are checked for safety every 12 months.
- Landlords must keep gas safety check records under Regulation 36(3)(c); where the Reg 36A early-check flexibility is used, records need to demonstrate compliance across cycles (industry practice: retain until two further checks have been completed). Provide existing tenants a copy within 28 days and new tenants before occupation.
- Existing tenants must receive a copy of the Gas Safety Record within 28 days of the check, while new tenants must be provided with a copy prior to occupying the property.
- Landlords are legally responsible for flues and pipework connected to tenant-owned appliances, but not for the maintenance or safety checking of the tenant's own appliances.
- The MOT-style rule allows annual safety checks to be carried out up to 2 months prior to the 12-month deadline while preserving the original expiry date for future checks.
1.3 Landlord Gas Safety Duties & CP12 / Safety Check Records (Regulation 36)
Statutory Purpose: Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 (GSIUR) imposes comprehensive, strict legal duties on residential landlords to protect tenants from gas leaks, explosions, and carbon monoxide poisoning. Landlords who fail to comply face prosecution by the Health and Safety Executive (HSE), severe fines, invalidation of landlord insurance, and prohibition from serving Section 21 eviction notices.
Statutory Scope of Regulation 36 (GSIUR 1998)
Regulation 36 applies to any landlord letting residential property under a lease or license, including private landlords, housing associations, local authorities, student accommodation providers, and operators of Houses in Multiple Occupation (HMOs). The statutory scope encompasses:
- Landlord-Supplied Appliances: Every gas appliance provided directly or indirectly by the landlord (e.g., central heating boilers, gas fires, gas hobs, water heaters).
- Flues & Chimneys: Every flue chimney system serving a landlord-supplied gas appliance, including flues routed through ceiling voids or neighboring property spaces.
- Gas Pipework: All gas installation pipework situated within the property boundary, whether supplying landlord appliances or tenant appliances.
The 12-Month Annual Safety Check Duty & MOT Flexibility
Under Regulation 36(2), a landlord must ensure that each gas appliance and flue is checked for safety at intervals of no more than 12 months by a Gas Safe registered operative holding appropriate ACS qualification.
The MOT-Style Inspection Rule
To prevent landlords from losing days on their annual cycle when scheduling checks early, GSIUR Regulation 36 was amended to introduce an MOT-style deadline extension rule:
+-------------------------------------------------------------------+
| MOT FLEXIBILITY WINDOW FOR LANDLORD GAS SAFETY CHECKS |
| |
| [------- 2-Month Window -------]| Statutory Deadline |
| Check completed within 2 months | Original Expiry Date Preserved |
| PRIOR to statutory deadline. | Next check due 12 months from |
| | ORIGINAL expiry date. |
+-------------------------------------------------------------------+
- Standard Rule: If a safety check is carried out up to 2 calendar months prior to the 12-month deadline date, the new certificate retains the original statutory deadline date for the following year.
- Overdue Check: If a check is carried out after the statutory deadline date, the new 12-month clock resets from the actual date the check was conducted, but the landlord is in breach of law for the overdue period.
Statutory Record Retention & Tenant Distribution Rules
Regulation 36(3) and 36(5) lay down strict timelines for documentation retention and tenant notification:
| Obligation Type | Statutory Requirement | Legal Deadline |
|---|---|---|
| Record Retention | Retain copy of Landlord Gas Safety Record (CP12) | At least 2 years (24 months) from the check date |
| Existing Tenants | Provide copy of new CP12 certificate to existing tenants | Within 28 days of check completion |
| New Tenants | Provide copy of current CP12 certificate to new tenants | Before tenant moves into the property |
| Short-Term Lets (<28 days) | Display copy of CP12 prominently inside property | At all times in a visible location |
Anatomy & Mandatory Contents of the CP12 Gas Safety Record
The document commonly called a CP12 (historically named after CORGI Proforma 12) is formally designated as the Landlord Gas Safety Record. Under Regulation 36(3)(c), the record must contain explicit statutory information to be legally valid.
Mandatory Fields Required on a Valid CP12 Record
- Check Date & Location: Exact date of inspection and full address of the rented premises.
- Landlord & Agent Details: Full name and contact address of the landlord (or managing agent).
- Operative & Business Details: Name, signature, Gas Safe registration number, and business address of the registered operative executing the check.
- Appliance & Flue Inventory: Description and precise location of every gas appliance and flue checked.
- Safety Test Results:
- Operating pressure / heat input checks
- Combustion analyzer readings / flue performance & spillage test results
- Provision of adequate ventilation air
- Operation of safety control devices
- Results of system tightness testing
- Defects & Action Taken: Clear details of any defect identified, GIUSP classification (ID, AR, NC), action taken (e.g., appliance isolated), and explicit confirmation whether the installation complies with safety requirements.
Appliance Ownership & Unsafe Situation Management in Rented Property
Tenant-Owned Appliances vs. Landlord Pipework
A critical legal distinction exists regarding appliance ownership under Regulation 36:
- Tenant-Owned Appliances: The landlord is NOT legally responsible for the annual safety check or maintenance of gas appliances owned independently by the tenant.
- Landlord Pipework Connection: However, the landlord IS legally responsible for the gas supply pipework connecting to the tenant's appliance and the installation tightness test serving that point.
- Operative Procedure: If an operative carrying out a landlord check inspects a tenant's appliance and discovers an unsafe condition (ID or AR), the operative must apply the GIUSP procedure, issue an Unsafe Situation Notice to the tenant and landlord, and disconnect the unsafe appliance with consent or notify the ESP.
Worked Legal Scenario: HMO Audit & Record Compliance Failure
Scenario Description
A private landlord owns a 6-bedroom licensed House in Multiple Occupation (HMO). The gas appliances consist of a landlord-owned System Boiler in the basement, a landlord gas hob in the communal kitchen, and a tenant-owned gas room heater installed by a tenant in Bedroom 3.
An annual gas check was conducted on 10 June 2024. The landlord scheduled the 2025 check on 15 May 2025 (within the 2-month window). However, the landlord failed to issue copies of the CP12 to the six tenants until 20 August 2025 (97 days after the check). In November 2025, during a local council housing inspection, the landlord was audited for gas compliance covering the past 3 years.
Compliance Evaluation & Legal Findings
- Inspection Timing & MOT Window: The check on 15 May 2025 was carried out within the 2-month window prior to the 10 June deadline. Under Regulation 36, the next annual deadline remained 10 June 2026.
- Tenant Provision Breach: Issuing the CP12 certificate to existing tenants 97 days after completion breaches Regulation 36(5), which mandates delivery within 28 days. The landlord is guilty of an offense under HASWA Section 33.
- Record Retention Check: The council inspector checked records from 2023, 2024, and 2025. Landlords must retain records for at least 2 years (24 months). The landlord produced all records, satisfying Regulation 36(3)(c).
- Appliance Coverage Analysis: The CP12 correctly covered the basement boiler and communal hob. The tenant's room heater was correctly excluded from landlord appliance servicing, but the gas tightness test recorded on the CP12 verified that the landlord pipework supplying Bedroom 3 was fully gas-tight.
Under Regulation 36 of GSIUR 1998, what is the statutory minimum retention period for a Landlord Gas Safety Record (CP12)?
Within how many days of an annual gas safety check being completed must a landlord provide a copy of the record to an existing tenant?
A landlord lets a property containing a gas boiler provided by the landlord and a gas cooker owned by the tenant. What is the landlord's legal responsibility regarding the gas safety check?