http://www.nzqa.govt.nz/qualifications-standards/qualifications/ncea/
NZQA stand for New Zealand Qualifications Authority. They oversee all qualifications in NZ. The NCEA (National Certificate of Educational Achievement) has three levels here at school. You also need literacy and numeracy. The rules can be found at the above link.
In the senior years, you need at RGHS 4 subjects at UE with at least 14 credits. (Minimum 3 subjects, with a back up in case you miss out on a couple of standards.)
