NIW I-140 approval transfer dzhang19582005-08-11 17:59:14

NIW I-140 approved June NSC (RD Aug. 2003, RFE April 2005),
Going to give I-485 at VSC September due to job change,
How to transfer I-140 approval from NSC to VSC? Write letter or phone call to NSC and/or VSC & need fill any forms?

Thanks a lot for your help!