# Reference

```{admonition} Summary
This section serves to document the fields and codes in OCDS.
```

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 eForms extension:

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

* [Amendment rationale classifications](https://extensions.open-contracting.org/en/extensions/amendment_rationale_classifications/master/)
* [Award criteria](https://extensions.open-contracting.org/en/extensions/awardCriteria/master/)
* [Beneficial owners](https://extensions.open-contracting.org/en/extensions/beneficialOwners/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/)
* [Buyer per award or contract](https://extensions.open-contracting.org/en/extensions/contract_buyer/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/)
* [Document publisher](https://extensions.open-contracting.org/en/extensions/document_publisher/master/)
* [Documentation](https://extensions.open-contracting.org/en/extensions/documentation_details/master/)
* [Essential assets](https://extensions.open-contracting.org/en/extensions/essentialAssets/master/)
* [European Union](https://extensions.open-contracting.org/en/extensions/eu/1.1/)
* [Exclusion grounds](https://extensions.open-contracting.org/en/extensions/exclusionGrounds/master/)
* [Finance](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/)
* [Options](https://extensions.open-contracting.org/en/extensions/options/master/)
* [Organization classification](https://extensions.open-contracting.org/en/extensions/organizationClassification/1.1/)
* [Organization scale](https://extensions.open-contracting.org/en/extensions/partyScale/master/)
* [Other requirements](https://extensions.open-contracting.org/en/extensions/otherRequirements/master/)
* [Participation fees](https://extensions.open-contracting.org/en/extensions/participation_fee/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/)
* [Statistics](https://extensions.open-contracting.org/en/extensions/statistics/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/)
* [Suitability](https://extensions.open-contracting.org/en/extensions/suitability/master/)
* [Sustainability](https://extensions.open-contracting.org/en/extensions/sustainability/master/)
* [Sustainability](https://extensions.open-contracting.org/en/extensions/sustainability/master/)
* [Techniques](https://extensions.open-contracting.org/en/extensions/techniques/master/)
* [Withheld information](https://extensions.open-contracting.org/en/extensions/withheldInformation/master/)

The profile also uses the [OCDS 1.2 draft extension](https://github.com/open-contracting-extensions/ocds_1_2_draft_extension), to use fields and codes proposed for OCDS 1.2.