As of Feb 27th 2005 motorcyclists in New Zealand are permitted to use all bus lanes. However this does not apply to “Bus Only” sections of road as designated by the local council.
Wellington
The following are Bus Only sections of road (not available to motorcyclists):
Lambton Quay from Panama St to Hunter St,
Hunter St to Customhouse Quay,
Customhouse Quay to Willis St,
Willis St to Mercer St.
All other bus lanes are available to motorcyclists (when last checked with Wellington City Council). For current bus lanes in Wellington contact Wellington City Council
Auckland
For current bus lanes in Auckland contact Auckland City Council
Christchurch