Reply to post:

I see this in the same way as the kite mark

.. which is more or less the concept in the "Solutions" part of the paper: 6.2 talks about a kite mark approach, and the potential to simply add to the existing infrastructure for it (which is frighteningly unusual for a political paper: it doesn't ask for new pork).

Unusually good paper. Not quite complete, but a good starting point for both debate and a possible solution.