EB-2 NIW · Profession Guide
EB-2 NIW for Mechanical and aerospace engineers: AAO Data, Denial Patterns & Evidence
How mechanical and aerospace engineers can satisfy Dhanasar prong one when AAO routinely finds national importance "not established".
Based on 6,362 real USCIS AAO decisions · Last updated May 2026
Short answer
Across 298 Mechanical / Aerospace Engineer AAO decisions in our corpus, 6.8% were approved on appeal, 83.2% were denied, and 10% were remanded. The single most common denial reason for mechanical and aerospace engineers is “National importance not established.” AAO rates are lower than first-pass USCIS rates because these cases were already denied at least once.
AAO outcomes for mechanical and aerospace engineers (298 decisions)
Read this carefully: AAO numbers reflect petitions that were already denied at least once and appealed. First-pass USCIS approval rates are substantially higher. Use these figures to understand which arguments USCIS finds insufficient at the highest scrutiny level.
Why mechanical and aerospace engineers get denied at AAO
Most common AAO denial reason in this bucket:
National importance not established
AAO denials for this bucket consistently fault prong one. Mechanical/aerospace work is often deeply technical but described in firm-internal terms (one program, one product). Without an explicit link to a national-priority area — defense, space, energy, transportation safety — the same work is treated as routine engineering.
What strong mechanical or aerospace engineer petitions tend to include
These are the evidence types that recur in approved Mechanical / Aerospace Engineer cases. Not every approved petition has all of them, but petitions missing several typically struggle at AAO.
- 1Direct ties to national-priority programs (DoD, NASA, DOE, FAA), with contract numbers or program names where releasable
- 2Patents with claims tied to safety, reliability, or efficiency outcomes that affect the public
- 3Standard-setting work (SAE, ASME, AIAA, ASTM committees) showing field-level influence
- 4Conference papers at refereed venues (AIAA SciTech, ASME IMECE, IEEE/AIAA aerospace conferences)
- 5Independent expert letters from researchers at universities, FFRDCs, or agencies — not just program managers
- 6Coverage in trade press (Aviation Week, Space News, Mechanical Engineering magazine) with bylines
How mechanical or aerospace engineer cases fit the Dhanasar three-prong test
The Dhanasar framework asks USCIS to evaluate three things together: substantive merit, your positioning to advance the work, and whether waiving the labor cert makes sense on balance. Here is how the prongs typically frame for mechanical and aerospace engineers.
Prong 1 — Substantive merit and national importance
Anchor your case in a national-priority program (space launch, defense, energy transition) — not just a product.
Prong 2 — Well-positioned to advance the proposed endeavor
Patents + standards work + agency-tied projects establish that you, individually, are well-positioned.
Prong 3 — On balance, waiver is in the national interest
Argue waiver because clearance / program timelines do not survive labor cert — agency continuity letters help.
What approved Mechanical / Aerospace Engineer profiles look like
A pattern of program work tied to a federal agency or national-priority area, plus patents or standards-committee service.
This is a composite based on patterns across 298 AAO decisions — not any single case. Your specific profile may clear with less, or struggle with more, depending on framing.
Run a personalized Mechanical / Aerospace Engineer case analysis
Aggregate data tells you what AAO has rejected for mechanical and aerospace engineers. A $10 ai case review tells you which of those failure modes your profile is closest to — prong by prong, with the five most-similar AAO cases pulled directly from the same 6,362-decision corpus.
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