https://bateman-mcconnell.thou....ghtlanes.net/what-is
Why Landlords Need a Gas Safety Certificate All landlords are required to ensure that their properties have an active Gas Safety Certificate (CP12) in place. This certification shows that an engineer has checked the safety of all gas appliances and flues in the premises. Gas Safe engineers all carry an ID card with a photo. You should ask to check it out before any work takes place on your property. The card demonstrates that the engineer is registered on the Gas Safe Register.