USCIS has informed the public that it recently began transferring
certain extensions of stay caseworks from the Vermont Service Center to
the California Service Center. This shift occurred to balance workloads
at the two service centers.
Affected casework includes Form I-129, the Petition for a Nonimmigrant
Worker, submitted by an employer to extend the stay of an alien to
perform services as an H-1B specialty worker. If your case was
transferred, USCIS will send you a notice listing the transfer date as
well as where your case will be processed. USCIS notes that the original
receipt number will not change; this transfer should not delay the
processing of your case.