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Projections are selected so that they best represent an area on a flat surface. There are separate transverse Mercator projections for each of the following offshore islands: Antipodes, Auckland, Bounty, Campbell Island / Motu Ihupuku, Chatham, Kermadec, Raoul and Snares Islands / Tini Heke Islands.

The Chatham Islands Transverse Mercator 1979 (CITM1979) used to be the projection for Topographic 1:50,000 and other small-scale mapping in the Chatham Islands. Chatham Islands Transverse Mercator 2000 (CITM2000) is now the official projection used in the Chatham

Until May 2010, geodetic coordinates were categorised using orders based on coordinate observation and survey significance. This framework was replaced in 2010 by the Standard for the Geospatial Accuracy Framework (LINZS25005) and Standard for Tiers, Classes and Orders of LINZ Data (LINZS25006).

The Rules for Cadastral Survey 2010 that came into effect on 24 May 2010 have different accuracy requirements to their predecessor Surveyor-General’s Rules for Cadastral Survey 2002/2.

A geodetic datum defines a reference framework for specifying locations on the Earth's surface. Two geodetic datums are currently used in New Zealand, and others have been used in the past.

Find out about investing in New Zealand’s fishing quota.

Find out if you need to provide a Vendor Information Form when selling to an overseas person.

Find out what the investor test is, who needs to meet it and how it is assessed.

Transforming coordinates between the World Geodetic System 1984 (WGS84) and New Zealand Geodetic Datum 2000 (NZGD2000) is more complex than some other transformations as a reference date is required for WGS84.

Find out more about Landonline system administration and dealing with errors, and access guides and resources on using Landonline.

Information for cadastral surveyors, property professionals and property owners in regions affected by earthquakes and other natural disasters.

Guidance articles on registering electronic land transactions, grouped into key topics like caveats, mortgages and subdivisions.

Information about applying for a record of title based on adverse possession, and applying to bring deeds land under the Land Transfer Act 2017 (by an adverse occupier).

Information about transfer instruments including mortgagee sale transfers, no survivorship notations, and more.

Guidance to help you build your own New Zealand-centric maps for mobile, web and GIS apps.

Users may need to convert and transform coordinates between geodetic datums, projections and height systems when they combine data from different sources.

Set up and use changesets to keep your LINZ data up to date.

Definitions for official, recorded, dual, alternative and collected place names, and what we don’t name.

Find out about fresh or seawater areas and your responsibilities.

Information about requests, requisition and rejection reasons, correcting a land record, and compensation.