https://click4r.com/posts/g/18....644629/its-history-o
https://yamcode.com/3-ways-the....-boiler-engineer-buc
What Does a Gas Safety Engineer Do? A gas safety certificate, or CP12, is a main file that shows your gas devices, fittings and flues are safe. It is a legal requirement for landlords to get one for all of their residential or commercial properties. Just a Gas Safe Registered (former CORGI) engineer must carry out gas work. They will show you their Gas Safe Register ID card, which has a distinct licence number.