According to an update on AILA’s website, if you are requesting for withdrawal of an H-1B approved by Texas Service Center, the application should now be sent to the Vermont Service Center, and for the H1-Bs approved by the National Service Center, the request should be sent to the California Service Center.

U.S. Citizenship and Immigration Services (USCIS) has announced today it would allow F-1 students, whose H-1B petitions have been selected for fiscal year (FY) 2009, to request a change of status in lieu of consular notification. This is a short-term measure taken to accommodate the changes introduced by the recent Interim final rule on F1 [...]

Effective starting February 2007, U.S. Citizenship and Immigration Services (USCIS) will process cap exempt H-1B petitions at one centralized location – the California Service Center (CSC). USCIS will soon post special filing instructions to Form I-129 requiring all qualifying H-1B cap exempt petitions to be filed at the CSC. Which petitions fall under this regulation? [...]