Within the U.S. immigration system, each person who is assigned an Alien Registration Number (A-Number) has a nine-digit ...

South Korea is a digital society far ahead of Japan. Everything from personal ID numbers to phone numbers and various ...

In April 2025, the Department of Homeland Security (DHS) began actively enforcing long-standing federal noncitizen registration laws that had been essentially inactive for years. Many noncitizens ...

On February 25, 2025, the U.S. Department of Homeland Security (DHS) announced it was implementing a registration requirement, requiring certain foreign nationals to register their presence in the ...