Sorry, it must be made of aluminium. Transport (Vehicle and Drivernot yet found anything that specifies the material that the plate must
be made from. There are some requirements for its properties which disallow
some materials.
Registration and Licensing) Act 1986, Transport Notice 1995.
Yes, I'm working on this via the NZ Police, but will present all the facts
once I have them, not just bits of info. As I have said, there are some
conflicts & the info is not easily interpreted.
H.