Contract extensions via supplementary contract: extendsContractID

Under some procurement rules and processes, to extend the duration or value of a contract, or to make other substantial alterations, requires a new contract to be signed. This extension allows these relationships between two or more contracts in the same contracting process to be made explicit.

To use this extension, add this URL to your package's extensions array:

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Maintained by Open Contracting Data Standard Extensions

Schema

You can download the release-schema.json file in English.

Contract

The extension defines these fields in the Contract object from OCDS:

Field	Title	Description	Type(s)
`extendsContractID`	Extends contract ID	If this contract extends or amends a previously issued contract, then the contract.id value for the extended/amended contract can be provided here.	string