"These Questions & Answers address the automatic extension of F-1 student status in the United States for certain students with pending or approved H-1B petitions (indicating a request for change of status from F-1 to H-1B) for an employment start date of Oct. 1, 2010 under the Fiscal Year (FY) 2011 H-1B cap."
The PDF library document was downloaded from the USCIS Web site.