# Reference

Please refer to the following pages:

```{toctree}
:maxdepth: 1

schema
codelists
```

This profile makes use of the extensions below. Instead of declaring each extension in your OCDS packages, you can declare the consolidated OCDS for EU extension:

```json
{
  "extensions": [
    "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json"
  ]
}
```

* [Additional Contact Points](https://extensions.open-contracting.org/en/extensions/additionalContactPoint/master/)
* [Award Criteria](https://extensions.open-contracting.org/en/extensions/awardCriteria/master/)
* [Bid Opening](https://extensions.open-contracting.org/en/extensions/bidOpening/master/)
* [Bid Statistics and Details](https://extensions.open-contracting.org/en/extensions/bids/master/)
* [Charges](https://extensions.open-contracting.org/en/extensions/charges/master/)
* [Communication](https://extensions.open-contracting.org/en/extensions/communication/master/)
* [Contract Terms](https://extensions.open-contracting.org/en/extensions/contractTerms/master/)
* [Country Code](https://extensions.open-contracting.org/en/extensions/countryCode/master/)
* [Covered By](https://extensions.open-contracting.org/en/extensions/coveredBy/master/)
* [Design Contest](https://extensions.open-contracting.org/en/extensions/designContest/master/)
* [Essential Assets](https://extensions.open-contracting.org/en/extensions/essentialAssets/master/)
* [European Union](https://extensions.open-contracting.org/en/extensions/eu/1.1/)
* [Financing](https://extensions.open-contracting.org/en/extensions/finance/master/)
* [Legal Basis](https://extensions.open-contracting.org/en/extensions/legalBasis/1.1/)
* [Location](https://extensions.open-contracting.org/en/extensions/location/master/)
* [Lots](https://extensions.open-contracting.org/en/extensions/lots/master/)
* [Metrics](https://extensions.open-contracting.org/en/extensions/metrics/1.1/)
* [Options](https://extensions.open-contracting.org/en/extensions/options/master/)
* [Organization Classification](https://extensions.open-contracting.org/en/extensions/organizationClassification/1.1/)
* [Other Requirements](https://extensions.open-contracting.org/en/extensions/otherRequirements/master/)
* [Participation Fees](https://extensions.open-contracting.org/en/extensions/participation_fee/master/)
* [Party Scale](https://extensions.open-contracting.org/en/extensions/partyScale/master/)
* [Procedure](https://extensions.open-contracting.org/en/extensions/procedure/master/)
* [Process-Level Title and Description](https://extensions.open-contracting.org/en/extensions/process_title/master/)
* [Procurement Method Rationale Classifications](https://extensions.open-contracting.org/en/extensions/procurementMethodRationaleClassifications/master/)
* [Recurrence](https://extensions.open-contracting.org/en/extensions/recurrence/master/)
* [Renewal](https://extensions.open-contracting.org/en/extensions/renewal/master/)
* [Second Stage Description](https://extensions.open-contracting.org/en/extensions/secondStageDescription/master/)
* [Selection Criteria](https://extensions.open-contracting.org/en/extensions/selectionCriteria/master/)
* [Shareholders](https://extensions.open-contracting.org/en/extensions/shareholders/master/)
* [Status Details](https://extensions.open-contracting.org/en/extensions/statusDetails/master/)
* [Subcontracting](https://extensions.open-contracting.org/en/extensions/subcontracting/master/)
* [Submission Terms](https://extensions.open-contracting.org/en/extensions/submissionTerms/master/)
* [Techniques](https://extensions.open-contracting.org/en/extensions/techniques/master/)
* [Tender Classification](https://extensions.open-contracting.org/en/extensions/tenderClassification/master/)
* [Unstructured Changes](https://extensions.open-contracting.org/en/extensions/unstructuredChanges/master/)