EA announces that closed beta testing of Mirror's Edge Catalyst begins on April 22nd and will run through April 26th. This blog has all the details on what will go down and how to possibly participate. Here's word:

If you have been selected for the Closed Beta and you are a Frontrunner, you will receive an email with your code on April 22nd. Others who made it into the Closed Beta will receive their code on April 23rd.

Closed Beta participants will be able to try out several of the main missions in Faith’s story, Side Missions, other optional content, and the Social Play features Mirror’s Edge Catalyst has to offer.

As with any beta, the experience will not be the same as the final product. The Closed Beta is a chance for us to gather your valuable feedback and test the Social Play and online systems before launch. We know that as community members, you will have invaluable feedback on the game and we look forward to your comments and reaction when the Closed Beta starts.