On Monday, 14 September 2015 15:10:31 UTC+1, Dave Plowman (News) wrote:
In article ,
whisky-dave wrote:
From what I read last year, you are not allowed to sign off someone
elses work.

I've heard this is exactly what happens in many firms.

Yep but firms are different to the DIY'er they should have procedures in place that check the proper hierachy of people doing the job, and that would show when something goes wrong who's to blame.

The person doing
the work isn't registered, and it is 'checked' by someone who is.

That is OK if that person is being employed or supervised by someone that
is gas safe or can prove they know what they are doing.
You also have to be compendent in the actual job you are doing.
So even if you have installed a gas pipeline from russia to UK that doesn't make you compentent (in itself) to replace a gas boiler in your home.