Digital certification for administration

The digital certificate of public workers in Catalonia

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


You get the same guarantees as your handwritten signature

Reduce processing times

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

It protects the environment

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


they use it for us


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

Allows you to sign documents and emails from wherever and whenever you want

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 indicate to the organization to which you belong and, if you want, add the position

Registration entities T-CAT

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

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In accordance with the European Regulation on electronic identification and trusted services

AOC certificates are in line with current European regulations

We accompany you in this digital leap

Digital transformation is inevitable, but we know that it is not at all easy to throw yourself into a vacuum. That is why, from the AOC, we will be by your side at all times to make the most of this jump and enjoy it together


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

Method and best practices

Do not force the citizen to travel to the Post Office because the postman has not found it 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 you

Inseparable companions of the T-CAT

You will get more out of the T-CAT if you complement it with the following services

Integration of identity services

Easily use your certificates

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Centralization of electronic signature management

Sign from anywhere at any time

Ready to make the jump?

Transforming the Administration needs brave people to take a step forward. Cheer up and throw yourself, we guarantee you a 100% safe landing.

* See the Conditions of provision of this service