Work Permit, EAD, for immigrants who were granted Deferred Action under new DHS Enforcement Policy 08/18/2011. ICE FAQs published 08/30/2011.

Work Permit for immigrants who are granted Deferred Action, FAQs published by ICE on 08-30-2011:

Will beneficiaries of an exercise of prosecutorial discretion automatically receive work authorization?

No. Nothing about this process is automatic and nobody who goes through this process is automatically
entitled to work authorization. Per longstanding federal law, individuals affected by an exercise of
prosecutorial discretion will be able to request work authorization, including paying associated fees, and
their requests will be separately considered by USCIS on a case-by-case basis.

http://www.ice.gov/doclib/about/offices/ero/pdf/immigration-enforcement-facts.pdf