Processing: Cases that are actively being reviewed by USCIS. This includes premium processing, expedite requests, scheduled biometrics, and mailed documents. Essentially any case that's in progress but hasn't reached interview or final decision
Received: Case has been received but not yet actively processed
RFE (Request for Evidence): USCIS needs additional documents
Response to RFE: Applicant has submitted requested evidence
NOI (Notice of Intent): USCIS intends to deny, applicant can respond
Response to NOI: Applicant has responded to the denial notice
Approved: Case has been approved
Denied: Case has been denied
Rejected: Application was not accepted (e.g., incomplete)
Transferred: Case moved to another service center
Withdrawal: Applicant withdrew the case
Terminated: Case processing was terminated
Interview: Cases at the interview stage - scheduled, completed, or awaiting decision after interview
Oath Ceremony: Naturalization cases (N-400) where applicant is awaiting or has completed the oath ceremony
Others: Other miscellaneous statuses
