Welcome to the forum.

DB2006(05) is an official (UK government) document that gives
guidance. As far as I'm aware, it does not have any legal compulsion to enforce compliance. We older techs will recall a succession of similar weak "guidelines" over the years. This one, deficient as it may appear, is in fact the best we have seen (believe it or not).
In this risk-adverse, Health & Safety obsessed country of ours, I have always thought:- what's the point of having all these Rules and Regulations, Standards, Guidelines, Targets (and boxes to tick ...
etc.) unless they are enforced?
Perhaps your
next question could now be:- "Who is following DB2006(05)? And if not, why not"?

The purpose of this document is to outline a systematic approach to the purchasing, deployment, maintenance, repair and disposal of medical devices.
It is intended primarily for people in hospital and community based organisations that are responsible for the management of medical devices, to help them set up systems that minimise risks associated with the use of those medical devices.
I don't see it as a guide "How to Run a Biomed Department", but rather aimed at general management within the NHS as a whole. A policy document, if you like, from which others may be based, and elaborate upon.
However, it is not particularly well-written. So if you want to have a go at re-writing it, I'm sure that such effort would be well *rewarded!
Personally, I would be interested in hearing about any specific criticisms you may have (and no, in case you're wondering, I
didn't have a hand in drafting it).
Let's take a look at what's been said before:-
1)
One2)
Two3)
ThreeMeanwhile ... MHRA
enforcing? Now you
are having a laugh!

*
By being quietly binned ... er, I mean "filed away".