The Public Contracts Registry is a service that the AOC makes available to Catalan public administrations and serves to allow compliance with data information obligations for public contracts awarded by all Catalan administrations and entities.

The Public Contract Registry provides information on the data of contracts awarded, contractual modifications, contract extensions and their settlement.

There is a review phase by the Administrative Contracting Advisory Board. The information of data to this tool also implies the subsequent transfer to other bodies, such as the State Registry of Public Sector Contracts and the Auditor General.