Hello! Please take a look on http://www.openstreetmap.org/way/484516919.
nswdcs:cadid = 108020713
ref:capad:pa_id = NSW_N0445
ref:npws:res_no = N0445
It seems to me that the key ref:capad:pa_id was formed from the key ref:npws:res_no, so it is duplicate information. I have the same suspicion for the key nswdcs:cadid, which in my opinion rather points to a technical Id, which is hardly used in the communication about nature reserves. I would ask you to check whether the two keys provide any new information.