How to answer selection criteria to apply as a marriage celebrant?

Log on to the Department of Internal Affairs website: www.dia.govt.nz and search "becoming a marriage celebrant".

The resulting page will outline the process and allow you to download the appropriate form.

The same page has a link to a booklet available for download, "A guide to the role of Marriage Celebrant in New Zealand" which includes helpful information as well as the legal requirements for marriage.