There are a lot of formalities to consider (https://www.mpi.govt.nz/importing/li...cats-and-dogs/ and https://www.mpi.govt.nz/importing/live-animals/pets/), and the logistics of getting the veterinary medical things done in the right order at the right time, as well as delivering the animal and its paperwork correctly. Many people use a company to sort out the details, because there are so many formalities and regulations which the professionals already have at their fingertips, but are a lot for a private person to get their head round when already coping with packing belongings, immigration rules, etc..

Here's an old post commenting. https://www.enz.org/forum/showthread...184#post445184