Rosalind

I am producing a paper lampshade for sale. I would like check that it is wholly safe and be able to reassure my customers that it has been approved. Is there a way for me to assess all risks?

I am not aware of any regulation that requires you to do anything but you could treat it with a fire retardant solution to prevent it for igniting, if the lamp was left on for some considerate period of time. You would also have to consider the wattage of the bulb in case the old incandescent bulb was used. The only way I know of  reassure your customers,  would be having it tested by a fire test company and getting a test certificate.