Christian McArdle wrote:
For example, if the electrics are in an extension which was built
this year, they *couldn't* have been done before Part P.

And date stamps on cable etc. are becoming more common.

Readers will have to refer to previous messages in this thread
for context. Why not quote a bit more?

Anyway:

Even if date stamps are on *everything*, then what does it
matter if there's no previous record of what was installed?