Paul,
Over here if an appliance is repaired by a qualified technician, that technician, must affix an Electrical Safety Certificate to the appliance.
I can't find an example of one of these on the Net and I also can't use my Dcam to take a photo of one, that I have in front of me.
This is a self-adhesive label, about 50x 40mm and it requires the technician to give thier contact details and thier registration no., in case someting goes wrong with the appliance. [Linked Image]