EPSG Geodetic Parameter Dataset


About the EPSG Dataset

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

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


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

The EPSG Registry has migrated from a previous platform. The data model on this new site has been upgraded to follow the ISO 19111:2019 revisions for dynamic datums, geoid-based vertical datums, datum ensembles and derived projected coordinate reference systems. EPSG Dataset v10.003 in the new model is consistent with the v9.9.1 data but has some modifications due to the data model changes. For an overview of the model changes see here.

This site now contains the master EPSG Dataset. EPSG v9.9.1 in the old data model (2020-08-31) is available from Archives. Future data releases will be made only in the new data model.

The functionality of this new site is still being improved and from time to time small changes may be made.

GeoRepository API

Software developers can find the RESTful GeoRepository API here (swagger).