The Health and Safety Executive (HSE) has updated its guidance on the use of gas appliances.
After conducting an extensive consultation programme, the agency has decided to improve the Approved Code of Practice guidelines, which cover the installation of components using the potentially dangerous and highly flammable substance.
Revisions include a more specific definition of who is "adequately" trained to carry out gas work, as well as changes reflecting recent concern around the introduction of smart meters.
Bosses at the HSE argue the alterations will make it easier for companies to properly comply with existing laws, while consumers will also see the benefit of these alterations.
Earlier this month a plumber, named as Andrew Barnes, was given a three year conditional discharge and told to pay £600 after pleading guilty to pretending to be a GasSafe registered engineer.
Commenting on the case, HSE inspector Robert Meardon said: "Mr Barnes was well aware of the risks but chose to ignore them – as he chose to ignore the specific warnings from the HSE."By Chris Stevenson