EPSG Dataset :: v11.022

EPSG Geodetic Parameter Dataset

About the EPSG Dataset

The IOGP's EPSG Geodetic Parameter Dataset contains definitions of coordinate reference systems and coordinate transformations which may be global, regional, national or local in application. It is maintained by the Geodesy Subcommittee of the IOGP Geomatics Committee.

The EPSG Dataset is the de facto standard in the geospatial industry, initiated in 1985 and first made public in 1993, as described in the History of the EPSG Dataset. For more information about its content and usage, see the Guidance Notes under “Support Documentation”.

Recent changes to the data can be viewed in the EPSG Dataset Release History.

To request changes to the EPSG Dataset see EPSG Dataset Change Request Help.

About registration

To gain access to the EPSG data through these web pages, you must agree to the Terms of Use by registering on this site. Once logged in, you will have access to additional functionality and may also manage your account including your subscription to EPSG updates.

To register, you must enter your email address (visible to IOGP) and password (not visible). This information is not used outside this site, nor is it passed on to any third party.

Click here to register.

About this site

This site contains the master EPSG Dataset. Its data model follows the ISO 19111:2019 international standard for referencing by coordinates, including its provision for dynamic datums, geoid-based vertical datums, datum ensembles and derived projected coordinate reference systems. EPSG Dataset versions 10.0 and later follow this data model. It is generally backward compatible with the previous 19111:2007 model data model but has some modifications and additional elements. For an overview of the model changes see here.

EPSG Dataset versions v10.003 in the 2019 model and v9.9.1 in the 2007 data model released in September 2020 contain the same data. Both are available from the Dataset Archives. Subsequent data releases are being made only in the new data model.

The software for this site is subject to continuous improvement and small changes in functionality are made from time to time.

GeoRepository API

Software developers can find the RESTful GeoRepository API description in swagger.

The EPSG Registry API User Guide provides assistance to computer application developers who wish to use the RESTful API of the EPSG Registry to query and retrieve entities and attributes from the Dataset.

Information on the Open Geospatial Consortium (OGC) standard syntax for a resolvable http URI string, which also explains how to construct hyperlinks to epsg.org using EPSG codes.

Wildcard	Example
% or *	Any wildcard characters
? or _	One wildcard character
[ - ]	[ - ] Range e.g. N[a-c] will return all geodetic objects that contains a string starting with the letter 'N' or 'n' followed by any of the letters contained within the range specified within the square bracket, e.g. letters a, b and c.
\|	Or e.g. E[a\|e]M will return all geodetic objects that contains a string starting with the letter E(e), ends with the letter M(m) and also contain either the letter a or letter e.