All applications (AOS/EAD/AP) are initially processed by the USCIS National Benefits Centre (NBC) in Missouri and EAD/AP applications are processed at the NBC in their entirety. The NBC will conduct an initial review of the various applications and, if they consider one or more of them to be deficient in any way, will either reject the application outright for resubmission or issue a Request for Further Initial Evidence. Once the NBC is satisfied that the applications are complete, they will process the EAD/AP application and send the AOS application to a local field office.