Success Story: Safer Transportation Modeling Leads to NIW Approval for an Engineer from China
Client’s Testimonial:
"It has been a pleasure working with the Wegreened team, with special thanks to Mr. G.”
On March 30th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for an Engineer in the Field of Mechanical Engineering (Approval Notice).
General Field: Mechanical Engineering
Position at the Time of Case Filing: Engineer
Country of Origin: China
Approval Notice Date: March 30th, 2026
Processing Time: 2 months, 30 days (Premium Processing Requested)
Case Summary:
Modern transportation systems depend on whether the underlying mechanics of motion, control, and system response have been modeled accurately enough to prevent failure before it happens. That was the foundation of this NIW case. A mechanical engineering researcher from China focused on developing computational geometry and kinetic approaches to better predict system dynamic behavior and improve the design, control, and safety of mechanical, railroad, and aerospace vehicle systems.
Her research was presented as directly relevant to safer rail systems, stronger aerospace performance, better vehicle control, and more reliable transportation infrastructure. The petition explained that accurate modeling of multibody-system dynamics is essential because failures in system behavior can lead to accidents, service disruption, and major economic losses. It also connected her work to federal priorities in aviation safety, railroad safety, and automated vehicle technologies, showing that her contributions were not confined to theory but addressed problems the United States is actively trying to solve.
The recommendation letters helped make that point concrete. The case included 2 letters, one of which stated:
“To conclude, [Client]’s work is essential in advancing vital U.S. industries, including mining, manufacturing, defense, transportation, and beyond, by addressing critical scientific challenges in the area of multibody-system dynamics modeling. Her continued research in the United States will contribute to maintaining the US technological leadership and supporting economic and national security interests.”
North America Immigration Law Group (Chen Immigration Law Associates) used this evidence to demonstrate that her research was critical because it improved the safety and reliability of systems that many industries depend on.
The petition also showed that she was well prepared to continue this work. Her background included a Ph.D. in Mechanical Engineering, specialization in multibody system dynamics, computational geometry, and kinetics, 6 peer-reviewed journal articles, 5 abstracts, 47 citations, and at least 20 completed peer reviews. Other researchers had already used her findings in later studies involving aerospace structures, rotational mechanics, railway diagnostics, and freight vehicle dynamics.
We were proud to help secure this NIW approval for a researcher whose work strengthens the hidden technical foundations of transportation safety and advanced vehicle design. This result reflects the value of a carefully prepared petition that translated complex mechanical engineering research into a clear case for national importance in the United States.

