Category and article names should:

1. specify "New Zealand" somehow if the category or article is confined to New Zealand subjects
2. not start with "New Zealand" unless:
   1. referring to a specific organisation that has its name like that; or
   2. matching a Wikipedia page name (was noted below)
3. otherwise match those of Wikipedia as closely as convenient (apart from using New Zealand English spelling) because that leads to considerable time-saving and helps with cross-referencing (for example, in the use of Template:alsoWP)