Copyright (c) 1993-2006, OGP Surveying & Positioning Committee

The EPSG geodetic parameter dataset is owned jointly and severally by the members of the Surveying and Positioning Committee of the International Association of Oil and Gas Producers (OGP), formerly the European Petroleum Survey Group (EPSG). It is compiled by the Geodetic Subcommittee of the OGP from publicly available and member-supplied information and distributed at no charge through the internet. The data may be copied and distributed subject to the following conditions:

  1. The user assumes the entire risk as to the accuracy and the use of this data. INFORMATION PROVIDED IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.

  2. All data pertinent to a specific coordinate reference system must be copied without modification and all related pages/records must be included;

  3. The data may not be distributed for profit by any third party; and

  4. The original source [OGP / EPSG] must be acknowledged.

With regard to (3) above, the data may be included within propriatory applications distributed on a commercial basis when the commerciality is based on application functionality and not on a value ascribed to the freely-distributed OGP data.

Source: www.epsg.org