The digital certificate of public workers in Catalonia

Header T-CAT service with avatars of people signing from your computer

The T-CAT is safe, comfortable and with the highest level of guarantees

Safe icon


You get the same guarantees as your handwritten signature

Icon reduction deadlines

Reduce processing times

It allows you to sign large numbers of documents, even neglected

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It protects the environment

This greatly reduces the amount of paper and files used in traditional processes

Photograph by Manel Nieto

Manel Nieto

ICT Area Coordinator

"The T-CATs have allowed the electronic signature to be safely incorporated into our procedures, favoring the digital transformation of our activity"

Logo Department of Justice

+ 2.200

they use it


T-CAT issued


registration entities T-CAT


Identification in portals and applications

Allows you to identify yourself as a public worker in front of all portals

Signature of documents and emails

Sign documents and emails from anywhere, anytime

Secures devices and applications

Makes websites and applications more secure

Electronic processing

The electronic signature is equal to the handwritten signature with all the legal and technical guarantees

Speed ​​up any procedure

Being able to process from anywhere at any time speeds up the time spent on processing

Identifies the attributes of the holder

The T-CAT allows you to tell the organization to which you belong and, if you wish, add the charge

Registration entities T-CAT

Issue T-CAT certificates for the body and for all public entities that depend on it organically or territorially

According to the European Regulation for electronic identification and trusted services

The AOC certificates are in compliance with current European regulations

We accompany you in this digital leap

Digital transformation is inevitable, but we know that it is not easy to throw yourself into the void. That is why from the AOC, we will always support you to make the most of this leap and enjoy together


Courses, tutorials and seminars that will help you to start the service

Method and best practices

Do not force the citizen to move to the Post Office because the postman has not found him at home

Support center

Continuous support from the AOC in order to make the leap together. If you need it, we will be there to help

Inseparable company of the T-CAT

You will benefit more from the T-CAT if you supplement it with the following service

Service logo VALID

Service integration
of identity

Easily use your certificates

Service logo Portasignatures

Centralization of electronic signature management

Sign from anywhere at any time

Ready to make the jump?

Transforming the Administration needs the courage to take a step forward. Cheer up and launch, we guarantee a 100% safe landing.

* See the Conditions of provision of this service

We connect

The selection of the current Open Administration in your bin.

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