Motions go back to the office that denied the case, under 8 C.F.R. § 103.5. A motion to reopen must state new facts supported by documentary evidence (§ 103.5(a)(2)); a motion to reconsider must show the decision was based on an incorrect application of law or policy on the record as it stood (§ 103.5(a)(3)). The two match different defects: reopen is for new evidence, reconsider is for legal error — and they can be filed together.
An appeal goes to the AAO under 8 C.F.R. § 103.3, also on Form I-290B. The AAO reviews de novo — law, fact, policy, and discretion — and, unlike a motion to reconsider, it accepts new evidence. That breadth is a double-edged sword: the AAO can also affirm a denial on a ground the service center never reached, and it can re-examine a criterion the original officer conceded.
The deadlines are short and unforgiving. A motion or appeal must be filed within 30 days of the decision — 33 if the decision was served by mail (8 C.F.R. § 103.8(b)) — with a shorter 15-day window to appeal the revocation of an already-approved petition (8 C.F.R. § 205.5). These clocks are the opposite of the six-year window for an APA suit, so preserving the administrative options is a time-sensitive decision even when litigation is the likely endgame.
For most employment-based petitions, exhausting the AAO is not a prerequisite to federal court. The Supreme Court held in Darby v. Cisneros, 509 U.S. 137 (1993), that courts may not require a plaintiff to pursue an optional administrative appeal before APA review unless a statute or regulation both mandates the appeal and makes the decision inoperative while it is pending. The USCIS appeal regulation does neither — 8 C.F.R. § 103.3(a)(1)(ii) says an unfavorable decision "may" be appealed — so a petitioner can generally sue under the APA without first appealing. The exception is EB-5, where the statute requires an administrative appeal of an I-526 or regional-center denial before any court has jurisdiction. This is why sequencing is a deliberate choice, not a fixed track.