The U.S. immigration system is complex and can be difficult to understand. These resources provide key data points, historical information, and background on hot topics in immigration. Learn the basics about immigration.
Recent Features

- Litigation
This nationwide class action lawsuit challenges U.S. Citizenship and Immigration Services’ pattern and practice of arbitrarily denying H-1B nonimmigrant employment-based petitions for market research analyst positions filed by United States businesses.

- Fact Sheet
This fact sheet defines the various components of the permanent, employment-based immigration system—and then describes how those components relate to each other in the application processes for each of the five preference categories.