Landlord advice has been issued by people involved with the Gas Safe Register body.
From tomorrow, the group will replace the Corgi gas scheme as the recognised standard gas appliances must adhere to - and private landlords have been informed about the developments in the build-up to the switchover.
Gas Safe Register's chief executive Peter Eldridge said that "it's been a delicate balancing act" to ensure the change in regulation runs smoothly.
"We have been doing a lot of groundwork over the past few months talking to local authorities, housing associations and landlords to help them tell their tenants the change is coming," he explained.
Advertisements have also been placed across different forms of media, including newspapers and television.
Private landlords should be aware that if someone other than a Gas Safe-registered engineer carries out gas work on a property, they could be risking the safety of their home.
Written by Sarah Field