When I was at the DWP, there was a change in legal guidance on earnings (co-incidently and confusingly, the person giving the advice used two different names) and I produced a local form for another section to send to employers.
As it had the DWP logo on it, we couldnt just send them out, it had to be approved centrally.
It involved establishing the time taken to complete each part of the form, how often it would be needed, the the cost of the paper, obtaining agreement from the heads of the other business area, changing procedural guidance etc.
It was not used.