ECSS General and System documents

The following documents can be downloaded in PDF or MS Word format.

The European Space Agency hereby disclaims any liability for use of these electronic documents and assumes no responsibility for any error or omission therein. See the License agreement – Disclaimer for more information.


  1. ECSS-P-00C – Standardization objectives, policies and organization (22 March 2013)
  2. ECSS-S-ST-00-01C – Glossary of terms (1 October 2012)
  3. ECSS-S-ST-00C – Description, implementation and general requirements (31 July 2008)