Published Land Transport Rules - Land Transport NZ

[BlakJak]

Land Transport New Zealand (formerly the Land Transport Safety Authority - LTSA) run a very informative website that contains guidance and copies of all relavent rules regarding the road code, vehicle compliance and pretty much all other regulatory matters relating to cars.

Please take a look:

http://www.ltsa.govt.nz/rules/index.html

Chances are the answer to your question in this area, can be found online.