The Landlord Gas Safety Record (CP12): what it must show

If you let a property with gas appliances, the law requires an annual gas safety check by a Gas Safe registered engineer, and a record of it — commonly called a CP12 — given to the tenant. Here’s what the record has to carry.

What the record must include

• The address of the property and the landlord’s (or agent’s) details.
• A description and location of each appliance and flue checked.
• The results of the safety checks — operating pressure or heat input, safety-device operation, ventilation and flue performance, combustion where applicable.
• Any defects found and the action taken, including any warning notice issued.
• The engineer’s name, signature, Gas Safe registration number, and the date — with the next check due within 12 months.

The safety classifications

Where a defect makes an appliance unsafe, the Gas Industry Unsafe Situations Procedure classifies it as Immediately Dangerous (ID), At Risk (AR), or Not to Current Standards (NCS), and the engineer issues the appropriate warning notice. The record should make that classification clear, not bury it in free text.

Who can issue it

Only a Gas Safe registered engineer, working within the scope of their registration, can carry out the check and complete the record.

Staying on schedule

The annual deadline is the bit that catches landlords and agents out across a portfolio. Worksum’s gas safety record captures each appliance, the safety checks and the ID/AR/NCS classification, stamps your Gas Safe number on the PDF, and tracks the next-due date so renewals don’t slip past twelve months.