Open Contracting Data Standard

Governments around the world spend an estimated US$13 trillion through contracts every year. Yet, contracting information is often unavailable for public scrutiny.

Le Standard de Données sur la Commande Publique Ouverte (OCDS) permet la divulgation de données et de documents à toutes les étapes d'un processus de commande publique en définissant un modèle commun de données. Il a été créé pour accompagner les organisations dans l'amélioration de la transparence de la commande publique et pour permettre une analyse plus profonde des données sur la commande publique par un éventail plus large d'usagers.

The OCDS documentation is made up of several parts, designed to help you use the OCDS effectively.


Learn about the key concepts and features of the OCDS

Conseils d’utilisation

Follow step-by-step instructions to design and implement an OCDS publication


Review the schemas, codelists and rules that need to be followed to publish OCDS data

Getting Help

Get free support and learn how to participate in the OCDS community


See how the OCDS has changed over time


Check whether your data follows the OCDS correctly

The Open Contracting Data Standard is a core product of the Open Contracting Partnership (OCP). If you are interested to learn more about Open Contracting advocacy and how it can be used to support wider reform and measurable improvements in public contracting, please visit


This is the English (and canonical) version of the OCDS documentation. You can switch to the Spanish and French translations using the language switcher.