This note from Grants.gov’s blog…
The General Services Administration (GSA) is moving the implementation date of the System for Award Management (SAM) from May 29, 2012 to the end of July 2012. The additional sixty days will allow federal agencies to continue preparing their staff, give agencies and commercial system providers even more time to test their data transfer connections, and will ensure SAM contains the critical, documented capabilities users need from the system.