Before revision: New Zealand LINZ Hydrographic Service are responsible for hydrographic surveying, production of nautical charts, and provision of tidal information covering the waters of New Zealand .
After revision: New Zealand Land Information New Zealand (LINZ) isthrough the New Zealand Hydrographic Authority (NZHA) responsible for hydrographic surveying, production of nautical charts, and provision of tidal information covering the waters of New Zealand .