That just would not be possible, and is the dumbest idea yet. We do we get these people from, I have been wearing a structural helmet for many many years, to many many rural incidents including Sydney bushfires, KI fires etc, and never had a problem, how about they do some actual studies by people that wear them, not some pen pushers that have not fought a fire since Khaki overalls were all the rage!!
Also it would be almost impossible to easily make a rural helmet structural compliant, you need to put the impact and thermal barriers into the helmet, yeah right, try doing that in a hurry.
Take a reality pill CFS HQ, I can't beleive what is happening to this service, seems to be full of .................!!!