Even training doesnt allow you to keep Cat 4 devices, I'm trained, but I'm not allowed to store Cat 4 items unless I have the correct storage lisences and insurance, which costs a small fortune.
Tell me about it I'm cat 4 trained and bpa 1&2 plus insured as display operator but unless I spend a fortune on correct container specs and additional ins and licenses I can't even carry out fusing unless on site.