Gas Safety Certificate (CP12 / LGSR) in Northern Ireland

A legal requirement for landlords in Northern Ireland. Every 12 months, and here is who can do it, which properties it covers and what the law says.

At a glance

How often
Every 12 months
Who does it
A Gas Safe registered engineer
Tenant copy
Give tenants a copy within 28 days
Applies to
Rented properties with a gas supply (natural gas or LPG)
Legal status
Legal requirement

Common questions

How often is the Gas Safety Certificate (CP12 / LGSR) needed in Northern Ireland?

Every 12 months in Northern Ireland. The next one is due 12 months after the last.

Who is responsible for the Gas Safety Certificate (CP12 / LGSR)?

A Gas Safe registered engineer.

Does it apply to every rented property in Northern Ireland?

No. It applies to rented properties with a gas supply (natural gas or LPG).

Do I have to give my tenant a copy?

Yes. Tenants must be given a copy within 28 days. Beamwise sends it to them automatically when the new record is filed.

What does the law say?

Gas Safety (Installation and Use) Regulations (NI) 2004, reg 36: every landlord-provided gas appliance and flue (natural gas or LPG) checked at least every 12 months by a Gas Safe registered engineer. Copy to existing tenants within 28 days of the check, and to new tenants before they move in. Keep records for 2 years. Enforced by HSENI.

Written from the same rule Beamwise uses to track this for properties in Northern Ireland, last updated 15 Sept 2026. Rules change, so check the legislation named above or take professional advice before relying on it.

All Northern Ireland landlord requirements

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Beamwise provides compliance-tracking tools and does not constitute legal advice. Requirements differ between the Republic of Ireland and Northern Ireland and must be verified by a qualified professional. Privacy · Terms