A tender process can be divided into lots, where bidders can bid on one or more lots. Details of each lot can be provided here. Items, documents and other features may then reference the lot they are related to using relatedLot. Where no relatedLot identifier is given, the values ought to be interpreted as applicable to the whole tender.

OCDS for the European Union

OCDS for the Agreement on Government Procurement

OCDS for Public Private Partnerships (PPPs)

OCDS for eForms

Adds fields to the Tender and Lot objects to describe the options for the renewal of contracts.

Adds fields for information on options.

Where a tender process involves payment of fees to access documents, submit a proposal, or be awarded a contract, this extension can be used to provide fee details.

Adds a bids object to describe individual bids and aggregate statistics.

Adds a project object to the planning object to describe the project to which the contracting process is related, including the total value of the project (not to be confused with the total value of the contracting process).