There is no agreement between Spain and New Zealand in terms of validations and homologations.
No validation or homologation is required in order to have access to a primary or secondary school in New Zealand. Direct access is permitted, and students join the class in accordance with their age. English reinforcement classes for foreigners are usually offered.
In order to have access to the first course of studies at university, high school degrees are generally recognized. For those who are interested in applying for a place in a New Zealand university , it is necessary for them to approach the department or section of international affairs of the corresponding university.
The organization in charge of evaluating and homologizing foreign degrees in New Zealand is the New Zealand Qualifications Authority (NZQA)