Lifehacker1987

Hi all, I have a lodged application for 186 DE in WA. The case officer has requested to provide any licence or registration to work as an Engineering Technologist (Mining) . Any similar experience because as far as I know registration is not required for engineering technologists. He says " Alternatively, provide evidence that you do not need to hold registration or a licence to work in the nominated occupation." What kinda evidence is needed/enough to prove that?