DIR3 (Common Directory of Organic Units and Offices) is an application of the Secretary of State for Public Administrations, which provides a unified and common Inventory to the Administration of organic units and public bodies existing at any time. Each Administration is responsible for directly updating the data of its structure in this directory.
Entities wishing to send notification announcements using the delivery available at EACAT must be previously registered in DIR3 and therefore must be assigned a code in this directory.
If you are a local authority , see this content to find out how to apply for DIR3 codes.
You can obtain more information regarding the DIR3 on the State Electronic Administration Portal.