USCIS recently began transferring some Form I-130, Petition for Alien Relative, cases filed by lawful permanent residents for their eligible family members from the Vermont Service Center to the California Service Center.
If your case was transferred, USCIS will send you a notice listing the transfer date and where your case will be processed. Your original receipt number will not change and this will not delay the processing of your cases except for the additional time needed to transfer the file.
The news item and related documents are available here:
http://www.immigration.com/newslette...prmprocss.html
Please note, for now (June 2008), premium processing is only available if you meet ALL of the current requirements:
1. Your are currently on H-1;
2. Your H-1 status is expiring within 60 days when you apply for I-140 premium processing; and
3. You are not eligible to receive 1-year H-1 extensions because your labor certification was filed less than one year ago.